From mpls-interop-bounces@ietf.org Fri Jan 2 03:05:09 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7FD1B3A67AB; Fri, 2 Jan 2009 03:05:09 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5026D3A67AB for ; Fri, 2 Jan 2009 03:05:08 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.174 X-Spam-Level: X-Spam-Status: No, score=-6.174 tagged_above=-999 required=5 tests=[AWL=0.075, BAYES_00=-2.599, HELO_EQ_FR=0.35, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UwLpKBYH3WJv for ; Fri, 2 Jan 2009 03:05:07 -0800 (PST) Received: from smail6.alcatel.fr (gc-na5.alcatel.fr [64.208.49.5]) by core3.amsl.com (Postfix) with ESMTP id 4305C3A67C1 for ; Fri, 2 Jan 2009 03:05:05 -0800 (PST) Received: from FRVELSBHS03.ad2.ad.alcatel.com (frvelsbhs03.dc-m.alcatel-lucent.com [155.132.6.75]) by smail6.alcatel.fr (8.13.8/8.13.8/ICT) with ESMTP id n02B4qAF025874; Fri, 2 Jan 2009 12:04:52 +0100 Received: from FRVELSMBS11.ad2.ad.alcatel.com ([155.132.6.31]) by FRVELSBHS03.ad2.ad.alcatel.com with Microsoft SMTPSVC(6.0.3790.2499); Fri, 2 Jan 2009 12:04:51 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Fri, 2 Jan 2009 12:04:50 +0100 Message-ID: <0458D2EE0C36744BABB36BE37805C29A0319674C@FRVELSMBS11.ad2.ad.alcatel.com> In-Reply-To: <4958E2C6.7030500@pi.nu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as amead team document Thread-Index: AclpxE8UnnFg5OS7RGae8HmD8k912wDBYuUw References: <4958E2C6.7030500@pi.nu> From: "BOCCI Matthew" To: "Loa Andersson" , "MEAD team" X-OriginalArrivalTime: 02 Jan 2009 11:04:51.0952 (UTC) FILETIME=[EF85CF00:01C96CC9] X-Scanned-By: MIMEDefang 2.57 on 155.132.188.84 Subject: Re: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as amead team document X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Loa, I support this. Matthew > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Loa Andersson > Sent: 29 December 2008 14:47 > To: MEAD team > Subject: [Mpls-interop] poll for > draft-boutros-mpls-tp-loopback-00.txt as amead team document > > All, > > we have a proposal from the authors of > draft-boutros-mpls-tp-loopback-00.txt to include it as a > document that is coordinated by the the MEAD team. > > Please respond (positive or negative) to this before Jan 7. > > /Loa > > -- > > > Loa Andersson email: loa.andersson@redback.com > Sr Strategy and Standards Manager loa@pi.nu > Redback Networks phone: +46 8 632 77 14 > An Ericsson Company > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 2 08:39:41 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 33DF128C0EA; Fri, 2 Jan 2009 08:39:41 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 91CA628C17E for ; Fri, 2 Jan 2009 08:39:39 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.497 X-Spam-Level: X-Spam-Status: No, score=-6.497 tagged_above=-999 required=5 tests=[AWL=0.102, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id m1Bs1oQCadKY for ; Fri, 2 Jan 2009 08:39:36 -0800 (PST) Received: from rtp-iport-2.cisco.com (rtp-iport-2.cisco.com [64.102.122.149]) by core3.amsl.com (Postfix) with ESMTP id 845FE28C0EA for ; Fri, 2 Jan 2009 08:39:36 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.36,318,1228089600"; d="scan'208";a="32520229" Received: from rtp-dkim-2.cisco.com ([64.102.121.159]) by rtp-iport-2.cisco.com with ESMTP; 02 Jan 2009 16:39:24 +0000 Received: from rtp-core-1.cisco.com (rtp-core-1.cisco.com [64.102.124.12]) by rtp-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n02GdNTA026378; Fri, 2 Jan 2009 11:39:23 -0500 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n02GdNQ5008150; Fri, 2 Jan 2009 16:39:23 GMT Received: from xmb-rtp-202.amer.cisco.com ([64.102.31.52]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Fri, 2 Jan 2009 11:39:23 -0500 Received: from [127.0.0.1] ([171.68.225.134]) by xmb-rtp-202.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Fri, 2 Jan 2009 11:39:23 -0500 From: David Ward To: Adrian Farrel In-Reply-To: X-Priority: 3 References: <495A3EDF.9050408@pi.nu> Message-Id: Mime-Version: 1.0 (Apple Message framework v930.3) Date: Fri, 2 Jan 2009 10:39:22 -0600 X-Mailer: Apple Mail (2.930.3) X-OriginalArrivalTime: 02 Jan 2009 16:39:23.0278 (UTC) FILETIME=[AAF71AE0:01C96CF8] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=2603; t=1230914364; x=1231778364; c=relaxed/simple; s=rtpdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=dward@cisco.com; z=From:=20David=20Ward=20 |Subject:=20Re=3A=20[Mpls-interop]=20mpls-tp=20document=20f low=20chart=20-=20first=20iteration |Sender:=20 |To:=20Adrian=20Farrel=20; bh=XiISF22TA9orAId0NmOAKIjMFz+k5X6SmQb9l65ur/s=; b=T4ccUd8pYBUT4IdxKzBvnghoZwWlvMRh6GmPSejVwNz6YkrRgESE2IB/0L JRqCXqOPsPPQCQVXI5wdSOS1EdXiTLNXxBATVEePdmioAtEyXRsoRkRMnIQD Ww8ct6xptK; Authentication-Results: rtp-dkim-2; header.From=dward@cisco.com; dkim=pass ( sig from cisco.com/rtpdkim2001 verified; ); Cc: "Olaf M. Kolkman" , MEAD team , Russ Housley Subject: Re: [Mpls-interop] mpls-tp document flow chart - first iteration X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed"; DelSp="yes" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Loa, Malcolm - Just a few details I'd like to understand ... To change the flow chart according to Adrian's suggestion, steps 10 and 12 should be "ITU-T SG and Question review" vs "ad hoc." - Note that it is unclear when or why some draft would follow step 1 (WG process) or 2 (MEAD team). Is this a WG chair choice or author choice? - If a document is made a MEAD team doc can it be rejected? Or does it have to be rejected via the WG process? - When do the rules of the MPLS change process kick in? Should we overlay them here? - Would you like the routing directorate to also review the docs as a step in the process before req to pub? -DWard On Dec 30, 2008, at 11:20 AM, Adrian Farrel wrote: > Loa, > > I suspect there should be a difference between "ITU-T ad hoc" input > and "ITU-T" review. > > In early stages of drafting, we might ask for input from the ITU-T > ad hoc group. > > But when we ask for a formal review, we are asking the ITU-T. How > the ITU-T decides to handle this review (for example, on the ad hoc > group's mailing list, on a particular Question's mail exploder, or > at a face-to-face meeting) is not our concern. > > Cheers, > Adrian > ----- Original Message ----- From: "Loa Andersson" > To: "MEAD team" ; "Malcolm Betts" >; "Russ Housley" ; "Olaf M. Kolkman" > > Sent: Tuesday, December 30, 2008 3:31 PM > Subject: [Mpls-interop] mpls-tp document flow chart - first iteration > > >> All, >> >> In geneva Malcolm and I promised to come up with a mpls-tp document >> flow chart as a reference for SG15. >> >> This is how I think things should work, but as always comments are >> welcome. >> >> I looks a bit complicated, but it all comes down to that we keep >> SG15 as informed as possible. >> >> /Loa >> >> -- >> >> >> Loa Andersson email: >> loa.andersson@redback.com >> Sr Strategy and Standards Manager loa@pi.nu >> Redback Networks phone: +46 8 632 77 14 >> An Ericsson Company >> > > > -------------------------------------------------------------------------------- > > >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 2 09:09:35 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A0DCA28C14C; Fri, 2 Jan 2009 09:09:35 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E1B1928C167 for ; Fri, 2 Jan 2009 09:09:33 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.372 X-Spam-Level: X-Spam-Status: No, score=-1.372 tagged_above=-999 required=5 tests=[AWL=-0.733, BAYES_00=-2.599, RCVD_IN_BL_SPAMCOP_NET=1.96] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NDBWh8u8iffl for ; Fri, 2 Jan 2009 09:09:32 -0800 (PST) Received: from av8-1-sn3.vrr.skanova.net (av8-1-sn3.vrr.skanova.net [81.228.9.183]) by core3.amsl.com (Postfix) with ESMTP id 9890128C11F for ; Fri, 2 Jan 2009 09:09:32 -0800 (PST) Received: by av8-1-sn3.vrr.skanova.net (Postfix, from userid 502) id 7B77D37F05; Fri, 2 Jan 2009 18:09:19 +0100 (CET) Received: from smtp3-1-sn3.vrr.skanova.net (smtp3-1-sn3.vrr.skanova.net [81.228.9.101]) by av8-1-sn3.vrr.skanova.net (Postfix) with ESMTP id 31D4537EA6; Fri, 2 Jan 2009 18:09:19 +0100 (CET) Received: from [192.168.0.100] (h133n2fls33o883.telia.com [217.208.62.133]) by smtp3-1-sn3.vrr.skanova.net (Postfix) with ESMTP id 58F0A37E4A; Fri, 2 Jan 2009 18:09:17 +0100 (CET) Message-ID: <495E4A31.5080206@pi.nu> Date: Fri, 02 Jan 2009 18:09:05 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: David Ward References: <495A3EDF.9050408@pi.nu> In-Reply-To: X-Enigmail-Version: 0.95.7 Cc: "Olaf M. Kolkman" , Russ Housley , MEAD team Subject: Re: [Mpls-interop] mpls-tp document flow chart - first iteration X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Dave, David Ward wrote: > Loa, Malcolm - > > Just a few details I'd like to understand ... > > To change the flow chart according to Adrian's suggestion, steps 10 and > 12 should be "ITU-T SG and Question review" vs "ad hoc." tend to agree - what shows here is that what we need to get the expedited SG and Q review we should, according to JWT agreement, notify the ad hoc team that is in charge of getting the correct ITU-T review done. I will changed step 10 and 12 as above in the chart and the legend pages as follows: (10) Every time a review is initiated by a working group the appropriate ITU-T SG and Q's will be notified by a mail to the MPLS-TP ad hoc team. (11) When a document is deemed to mature enough a working group last call is initiated, at this time (12) a request for review is sent the appropriate ITU-T SG and Q's will be notified by a mail to the MPLS-TP ad hoc team. Note that this request is different from any other notifications sent to the MPLS-TP ad hoc team, for this request for comments the MPLS-TP ad hoc team is required to organize the ITU-T SG and Question review in such a way that a response by correspondence is response within the period of working group last call. > > - Note that it is unclear when or why some draft would follow step 1 (WG > process) or 2 (MEAD team). Is this a WG chair choice or author choice? I think that according to IETF process anyone could write a document and send it to a working group. > > - If a document is made a MEAD team doc can it be rejected? Of course it can be rejected, bu we need to motivate it. But there is nothing that stops the authors from resending it to a working group. End running wg decisions is generally not a good idea, but is allowed by process. > Or does it > have to be rejected via the WG process? this is an alternative, but would imply a discord between the MEAD team and the wg, I hope that this won't happen > > - When do the rules of the MPLS change process kick in? Should we > overlay them here? a good question - my take is that we fulfilled the requirements of the MPLS change process by participating in the JWT decision. I understand that we would be in deep shit if anyone would want to test this. What I see happen is that we we are doing: - requirments - frameworks - solutions this is the essence of the MPLS change process > > - Would you like the routing directorate to also review the docs as a > step in the process before req to pub? no - I'd like to have a routing directorate review as part of the process that is triggered when the publication is requested - but ADs need to decide on this part of the process :) I don't want the rtg dir involved in the wg process as a mandatory step, but want the chairs/wg have the option to ask for such a review > > > > -DWard > > On Dec 30, 2008, at 11:20 AM, Adrian Farrel wrote: > >> Loa, >> >> I suspect there should be a difference between "ITU-T ad hoc" input >> and "ITU-T" review. >> >> In early stages of drafting, we might ask for input from the ITU-T ad >> hoc group. >> >> But when we ask for a formal review, we are asking the ITU-T. How the >> ITU-T decides to handle this review (for example, on the ad hoc >> group's mailing list, on a particular Question's mail exploder, or at >> a face-to-face meeting) is not our concern. >> >> Cheers, >> Adrian >> ----- Original Message ----- From: "Loa Andersson" >> To: "MEAD team" ; "Malcolm Betts" >> ; "Russ Housley" ; "Olaf M. >> Kolkman" >> Sent: Tuesday, December 30, 2008 3:31 PM >> Subject: [Mpls-interop] mpls-tp document flow chart - first iteration >> >> >>> All, >>> >>> In geneva Malcolm and I promised to come up with a mpls-tp document >>> flow chart as a reference for SG15. >>> >>> This is how I think things should work, but as always comments are >>> welcome. >>> >>> I looks a bit complicated, but it all comes down to that we keep >>> SG15 as informed as possible. >>> >>> /Loa >>> >>> -- >>> >>> >>> Loa Andersson email: loa.andersson@redback.com >>> Sr Strategy and Standards Manager loa@pi.nu >>> Redback Networks phone: +46 8 632 77 14 >>> An Ericsson Company >>> >> >> >> -------------------------------------------------------------------------------- >> >> >> >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >> >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop > -- Loa Andersson email: loa.andersson@redback.com Sr Strategy and Standards Manager loa@pi.nu Redback Networks phone: +46 8 632 77 14 An Ericsson Company _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 2 09:18:25 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 228FC3A67C1; Fri, 2 Jan 2009 09:18:25 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0899328C0DD for ; Fri, 2 Jan 2009 09:18:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.835 X-Spam-Level: X-Spam-Status: No, score=-1.835 tagged_above=-999 required=5 tests=[AWL=-0.196, BAYES_00=-2.599, RCVD_IN_BL_SPAMCOP_NET=1.96, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wut8H0XwGqZO for ; Fri, 2 Jan 2009 09:18:23 -0800 (PST) Received: from av6-2-sn3.vrr.skanova.net (av6-2-sn3.vrr.skanova.net [81.228.9.180]) by core3.amsl.com (Postfix) with ESMTP id 23BB63A67C1 for ; Fri, 2 Jan 2009 09:18:21 -0800 (PST) Received: by av6-2-sn3.vrr.skanova.net (Postfix, from userid 502) id 4424C37FDB; Fri, 2 Jan 2009 18:18:09 +0100 (CET) Received: from smtp3-2-sn3.vrr.skanova.net (smtp3-2-sn3.vrr.skanova.net [81.228.9.102]) by av6-2-sn3.vrr.skanova.net (Postfix) with ESMTP id 0EA0237E85; Fri, 2 Jan 2009 18:18:09 +0100 (CET) Received: from [192.168.0.100] (h133n2fls33o883.telia.com [217.208.62.133]) by smtp3-2-sn3.vrr.skanova.net (Postfix) with ESMTP id 61FD537E43; Fri, 2 Jan 2009 18:18:07 +0100 (CET) Message-ID: <495E4C43.9050302@pi.nu> Date: Fri, 02 Jan 2009 18:17:55 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: David Ward References: <495A3EDF.9050408@pi.nu> <495E4A31.5080206@pi.nu> In-Reply-To: <495E4A31.5080206@pi.nu> X-Enigmail-Version: 0.95.7 Content-Type: multipart/mixed; boundary="------------080601070104060106000004" Cc: "Olaf M. Kolkman" , MEAD team , Russ Housley Subject: [Mpls-interop] mpls-tp document flow chart - second iteration X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org This is a multi-part message in MIME format. --------------080601070104060106000004 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit All, I've have updated the flow chart as suggested; more comments are welcome. /Loa -- Loa Andersson email: loa.andersson@redback.com Sr Strategy and Standards Manager loa@pi.nu Redback Networks phone: +46 8 632 77 14 An Ericsson Company --------------080601070104060106000004 Content-Type: application/vnd.ms-powerpoint; name="mpls-tp-flow-chart-pa2.ppt" Content-Transfer-Encoding: base64 Content-Disposition: inline; 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To: Loa Andersson In-Reply-To: <495E4A31.5080206@pi.nu> Mime-Version: 1.0 (Apple Message framework v930.3) Date: Fri, 2 Jan 2009 11:22:47 -0600 References: <495A3EDF.9050408@pi.nu> <495E4A31.5080206@pi.nu> X-Mailer: Apple Mail (2.930.3) X-OriginalArrivalTime: 02 Jan 2009 17:22:48.0277 (UTC) FILETIME=[BBAA6850:01C96CFE] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=6196; t=1230916968; x=1231780968; c=relaxed/simple; s=rtpdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=dward@cisco.com; z=From:=20David=20Ward=20 |Subject:=20Re=3A=20[Mpls-interop]=20mpls-tp=20document=20f low=20chart=20-=20first=20iteration |Sender:=20 |To:=20Loa=20Andersson=20; bh=1TS94wWelxEuFPIJk1qisDde2iTrozlQ2oE1NjQBROo=; b=S413tIa3+L8eQ1D10kJCc+F1YQl7U392yz2AVFLxY2GQ+g//3ajxXCvHjm vr68sb1v3IhZ05y+9cVP2PfNlwghnSFRqu3Cu3781oh8p5ARBL8b2TPEiMeO 3Q+g5PHELA; Authentication-Results: rtp-dkim-2; header.From=dward@cisco.com; dkim=pass ( sig from cisco.com/rtpdkim2001 verified; ); Cc: "Olaf M. Kolkman" , Russ Housley , MEAD team Subject: Re: [Mpls-interop] mpls-tp document flow chart - first iteration X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed"; DelSp="yes" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Loa, Malcolm - One thing we haven't formalized or discussed is the corresponding flow if a contribution is taken to the ITU. I'd like to see that flowchart formalized as well. I realize a contribution itself isn't a binding doc but, once the work item is taken on by a question, it is then official. We've gotten ourselves into a bit of a knot in December over various contributions. Given we are reviewing all things with the ad-hoc group before they become WG items, can we have the same of all contributions in the ITU-T? Here is the essence ... can the ad-hoc block a draft from becoming a WG doc? Can the MEAD block a contribution from becoming a question work item? My desire would be "Yes" to both. Thanks -DWard On Jan 2, 2009, at 11:09 AM, Loa Andersson wrote: > Dave, > > David Ward wrote: >> Loa, Malcolm - >> >> Just a few details I'd like to understand ... >> >> To change the flow chart according to Adrian's suggestion, steps 10 >> and >> 12 should be "ITU-T SG and Question review" vs "ad hoc." > > tend to agree - what shows here is that what we need to get the > expedited SG and Q review we should, according to JWT agreement, > notify the ad hoc team that is in charge of getting the correct > ITU-T review done. > > I will changed step 10 and 12 as above in the chart and the legend > pages > as follows: > > (10) Every time a review is initiated by a working group the > appropriate > ITU-T SG and Q's will be notified by a mail to the MPLS-TP ad hoc > team. > (11) When a document is deemed to mature enough a working group last > call is initiated, at this time > (12) a request for review is sent the appropriate ITU-T SG and Q's > will be notified by a mail to the MPLS-TP ad hoc team. > Note that this request is different from any other notifications > sent to the MPLS-TP ad hoc team, for this request for comments > the MPLS-TP ad hoc team is required to organize the ITU-T SG > and Question review in such a way that a response by > correspondence > is response within the period of working group last call. >> >> - Note that it is unclear when or why some draft would follow step >> 1 (WG >> process) or 2 (MEAD team). Is this a WG chair choice or author >> choice? > > I think that according to IETF process anyone could write a document > and send it to a working group. >> >> - If a document is made a MEAD team doc can it be rejected? > > Of course it can be rejected, bu we need to motivate it. But there is > nothing that stops the authors from resending it to a working group. > End > running wg decisions is generally not a good idea, but is allowed by > process. > >> Or does it >> have to be rejected via the WG process? > > this is an alternative, but would imply a discord between the MEAD > team > and the wg, I hope that this won't happen >> >> - When do the rules of the MPLS change process kick in? Should we >> overlay them here? > > a good question - my take is that we fulfilled the requirements > of the MPLS change process by participating in the JWT decision. > I understand that we would be in deep shit if anyone would want to > test this. > > What I see happen is that we we are doing: > > - requirments > - frameworks > - solutions > > this is the essence of the MPLS change process > >> >> - Would you like the routing directorate to also review the docs as a >> step in the process before req to pub? > > no - I'd like to have a routing directorate review as part of > the process that is triggered when the publication is > requested - but ADs need to decide on this part of the process :) > I don't want the rtg dir involved in the wg process as a mandatory > step, but want the chairs/wg have the option to ask for such a review >> >> >> >> -DWard >> >> On Dec 30, 2008, at 11:20 AM, Adrian Farrel wrote: >> >>> Loa, >>> >>> I suspect there should be a difference between "ITU-T ad hoc" input >>> and "ITU-T" review. >>> >>> In early stages of drafting, we might ask for input from the ITU-T >>> ad >>> hoc group. >>> >>> But when we ask for a formal review, we are asking the ITU-T. How >>> the >>> ITU-T decides to handle this review (for example, on the ad hoc >>> group's mailing list, on a particular Question's mail exploder, or >>> at >>> a face-to-face meeting) is not our concern. >>> >>> Cheers, >>> Adrian >>> ----- Original Message ----- From: "Loa Andersson" >>> To: "MEAD team" ; "Malcolm Betts" >>> ; "Russ Housley" ; "Olaf >>> M. >>> Kolkman" >>> Sent: Tuesday, December 30, 2008 3:31 PM >>> Subject: [Mpls-interop] mpls-tp document flow chart - first >>> iteration >>> >>> >>>> All, >>>> >>>> In geneva Malcolm and I promised to come up with a mpls-tp document >>>> flow chart as a reference for SG15. >>>> >>>> This is how I think things should work, but as always comments are >>>> welcome. >>>> >>>> I looks a bit complicated, but it all comes down to that we keep >>>> SG15 as informed as possible. >>>> >>>> /Loa >>>> >>>> -- >>>> >>>> >>>> Loa Andersson email: loa.andersson@redback.com >>>> Sr Strategy and Standards Manager loa@pi.nu >>>> Redback Networks phone: +46 8 632 77 14 >>>> An Ericsson Company >>>> >>> >>> >>> -------------------------------------------------------------------------------- >>> >>> >>> >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >> > > > -- > > > Loa Andersson email: loa.andersson@redback.com > Sr Strategy and Standards Manager loa@pi.nu > Redback Networks phone: +46 8 632 77 14 > An Ericsson Company _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 5 04:48:57 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id ADB6A3A676A; Mon, 5 Jan 2009 04:48:57 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2E1BC3A689E for ; Mon, 5 Jan 2009 04:48:57 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.893 X-Spam-Level: X-Spam-Status: No, score=-5.893 tagged_above=-999 required=5 tests=[AWL=0.355, BAYES_00=-2.599, HELO_EQ_FR=0.35, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TSm-MLrKxEdP for ; Mon, 5 Jan 2009 04:48:56 -0800 (PST) Received: from smail5.alcatel.fr (smail5.alcatel.fr [62.23.212.27]) by core3.amsl.com (Postfix) with ESMTP id 1D11E3A676A for ; Mon, 5 Jan 2009 04:48:55 -0800 (PST) Received: from FRVELSBHS04.ad2.ad.alcatel.com (frvelsbhs04.dc-m.alcatel-lucent.com [155.132.6.76]) by smail5.alcatel.fr (8.13.8/8.13.8/ICT) with ESMTP id n05Cmdpt012001; Mon, 5 Jan 2009 13:48:40 +0100 Received: from FRMRSSMBS31.ad2.ad.alcatel.com ([155.132.6.11]) by FRVELSBHS04.ad2.ad.alcatel.com with Microsoft SMTPSVC(6.0.3790.2499); Mon, 5 Jan 2009 13:48:39 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 5 Jan 2009 13:47:15 +0100 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as amead team document Thread-Index: AclpxE2i+idz0EN1TlutZUdEryaMFgFb26+K References: <4958E2C6.7030500@pi.nu> From: "VIGOUREUX MARTIN" To: "Loa Andersson" , "MEAD team" X-OriginalArrivalTime: 05 Jan 2009 12:48:39.0789 (UTC) FILETIME=[EED791D0:01C96F33] X-Scanned-By: MIMEDefang 2.57 on 155.132.188.13 Subject: Re: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as amead team document X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0781014968==" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org This is a multi-part message in MIME format. --===============0781014968== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C96F33.EED34156" This is a multi-part message in MIME format. ------_=_NextPart_001_01C96F33.EED34156 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable all, my previous reply bounced. I support the proposal. regards, martin -----Original Message----- From: mpls-interop-bounces@ietf.org on behalf of Loa Andersson Sent: Mon 12/29/2008 3:46 PM To: MEAD team Subject: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt = as amead team document =20 All, we have a proposal from the authors of draft-boutros-mpls-tp-loopback-00.txt to include it as a document that is coordinated by the the MEAD team. Please respond (positive or negative) to this before Jan 7. /Loa --=20 Loa Andersson email: loa.andersson@redback.com Sr Strategy and Standards Manager loa@pi.nu Redback Networks phone: +46 8 632 77 14 An Ericsson Company _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop ------_=_NextPart_001_01C96F33.EED34156 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt = as amead team document

all,

my previous reply bounced.
I support the proposal.

regards,
martin


-----Original Message-----
From: mpls-interop-bounces@ietf.org on behalf of Loa Andersson
Sent: Mon 12/29/2008 3:46 PM
To: MEAD team
Subject: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt = as amead team document

All,

we have a proposal from the authors of
draft-boutros-mpls-tp-loopback-00.txt to include it as a document
that is coordinated by the the MEAD team.

Please respond (positive or negative) to this before Jan 7.

/Loa

--


Loa = Andersson          &nbs= p;            = ;  email: loa.andersson@redback.com
Sr Strategy and Standards = Manager           = loa@pi.nu
Redback = Networks           = ;           phone: +46 = 8 632 77 14
An Ericsson Company
_______________________________________________
Mpls-interop mailing list
Mpls-interop@ietf.org
https://www.i= etf.org/mailman/listinfo/mpls-interop

------_=_NextPart_001_01C96F33.EED34156-- --===============0781014968== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop --===============0781014968==-- From mpls-interop-bounces@ietf.org Tue Jan 6 08:32:33 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 14D223A6405; Tue, 6 Jan 2009 08:32:33 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 247703A6835 for ; Tue, 6 Jan 2009 08:32:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.834 X-Spam-Level: X-Spam-Status: No, score=-3.834 tagged_above=-999 required=5 tests=[AWL=-0.699, BAYES_00=-2.599, HTML_MESSAGE=0.001, MIME_QP_LONG_LINE=1.396, RCVD_IN_DNSWL_MED=-4, RCVD_NUMERIC_HELO=2.067] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1H+mGrxUfVMM for ; Tue, 6 Jan 2009 08:32:31 -0800 (PST) Received: from rtp-iport-1.cisco.com (rtp-iport-1.cisco.com [64.102.122.148]) by core3.amsl.com (Postfix) with ESMTP id 0EAF53A6405 for ; Tue, 6 Jan 2009 08:32:30 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.36,339,1228089600"; d="scan'208,217";a="32863131" Received: from rtp-dkim-2.cisco.com ([64.102.121.159]) by rtp-iport-1.cisco.com with ESMTP; 06 Jan 2009 16:32:17 +0000 Received: from rtp-core-2.cisco.com (rtp-core-2.cisco.com [64.102.124.13]) by rtp-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n06GWHfl005997; Tue, 6 Jan 2009 11:32:17 -0500 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-2.cisco.com (8.13.8/8.13.8) with ESMTP id n06GWHO9028002; Tue, 6 Jan 2009 16:32:17 GMT Received: from xmb-rtp-206.amer.cisco.com ([64.102.31.32]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Tue, 6 Jan 2009 11:32:17 -0500 Received: from 161.44.113.136 ([161.44.113.136]) by xmb-rtp-206.amer.cisco.com ([64.102.31.32]) with Microsoft Exchange Server HTTP-DAV ; Tue, 6 Jan 2009 16:32:04 +0000 User-Agent: Microsoft-Entourage/12.14.0.081024 Date: Tue, 06 Jan 2009 11:32:04 -0500 From: George Swallow To: Loa Andersson , MEAD team Message-ID: Thread-Topic: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as amead team document Thread-Index: AclpxFz2oR00n2aHT4yIRelCiNKEdwGV/HSN In-Reply-To: <4958E2C6.7030500@pi.nu> Mime-version: 1.0 X-OriginalArrivalTime: 06 Jan 2009 16:32:17.0343 (UTC) FILETIME=[56BD94F0:01C9701C] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=2778; t=1231259537; x=1232123537; c=relaxed/simple; s=rtpdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=swallow@cisco.com; z=From:=20George=20Swallow=20 |Subject:=20Re=3A=20[Mpls-interop]=20poll=20for=20draft-bou tros-mpls-tp-loopback-00.txt=20as=0A=20amead=20team=20docume nt |Sender:=20 |To:=20Loa=20Andersson=20,=20MEAD=20team=20; bh=zt+w7wTrHrJAOQPezUFSAoR/VNEYPZJiGYcEXQjLpiM=; b=e+z3R9iZJ4ZaGUSrLvCZ1gWdxH4Ln5z+rlFHlRw46Fs/6M0pD5DxhSbfNJ 0IMg1pxmi9sGez4BoMswDNyh+8g5uL55XGgQLyC4LK/tQEw6Ln/q37VqgLN9 rirvXEtoIB; Authentication-Results: rtp-dkim-2; header.From=swallow@cisco.com; dkim=pass ( sig from cisco.com/rtpdkim2001 verified; ); Subject: Re: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as amead team document X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0609166553==" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --===============0609166553== Content-type: multipart/alternative; boundary="B_3314086324_105540764" > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3314086324_105540764 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit Support. ...George On 12/29/08 9:46 AM, "Loa Andersson" wrote: > All, > > we have a proposal from the authors of > draft-boutros-mpls-tp-loopback-00.txt to include it as a document > that is coordinated by the the MEAD team. > > Please respond (positive or negative) to this before Jan 7. > > /Loa > > -- > > > Loa Andersson email: loa.andersson@redback.com > Sr Strategy and Standards Manager loa@pi.nu > Redback Networks phone: +46 8 632 77 14 > An Ericsson Company > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > --B_3314086324_105540764 Content-type: text/html; charset="US-ASCII" Content-transfer-encoding: quoted-printable Re: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as= amead team document Support= .

...George


On 12/29/08 9:46 AM, "Loa Andersson" <loa@= pi.nu> wrote:

All,

we have a proposal from the authors of
draft-boutros-mpls-tp-loopback-00.txt to include it as a document
that is coordinated by the the MEAD team.

Please respond (positive or negative) to this before Jan 7.

/Loa

--


Loa Andersson           &= nbsp;            = ; email: loa.andersson@redback.com<= /a>
Sr Strategy and Standards Manager        = ;    loa@pi.nu
Redback Networks          &nbs= p;           phone: += 46 8 632 77 14
An Ericsson Company
_______________________________________________
Mpls-interop mailing list
Mpls-interop@ietf.org
https://www.ie= tf.org/mailman/listinfo/mpls-interop

--B_3314086324_105540764-- --===============0609166553== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop --===============0609166553==-- From mpls-interop-bounces@ietf.org Tue Jan 6 08:45:55 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9F7AB3A6774; Tue, 6 Jan 2009 08:45:55 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id ADD2D3A6774 for ; Tue, 6 Jan 2009 08:45:54 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.822 X-Spam-Level: X-Spam-Status: No, score=-5.822 tagged_above=-999 required=5 tests=[AWL=0.776, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id INIjHTpwZtCV for ; Tue, 6 Jan 2009 08:45:53 -0800 (PST) Received: from demumfd001.nsn-inter.net (demumfd001.nsn-inter.net [217.115.75.233]) by core3.amsl.com (Postfix) with ESMTP id 533B93A67A5 for ; Tue, 6 Jan 2009 08:45:53 -0800 (PST) Received: from demuprx016.emea.nsn-intra.net ([10.150.129.55]) by demumfd001.nsn-inter.net (8.12.11.20060308/8.12.11) with ESMTP id n06Gjco4013910 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Tue, 6 Jan 2009 17:45:38 +0100 Received: from demuexc025.nsn-intra.net (demuexc025.nsn-intra.net [10.159.32.12]) by demuprx016.emea.nsn-intra.net (8.12.11.20060308/8.12.11) with ESMTP id n06GjcoS023952; Tue, 6 Jan 2009 17:45:38 +0100 Received: from DEMUEXC014.nsn-intra.net ([10.150.128.25]) by demuexc025.nsn-intra.net with Microsoft SMTPSVC(6.0.3790.3959); Tue, 6 Jan 2009 17:45:38 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Tue, 6 Jan 2009 17:45:36 +0100 Message-ID: <077E41CFFD002C4CAB7DFA4386A5326422D157@DEMUEXC014.nsn-intra.net> In-Reply-To: <4958E2C6.7030500@pi.nu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as amead team document Thread-Index: AclpxEz/Y8OTusPJS2G5uwByD9X1LQGWTcoA References: <4958E2C6.7030500@pi.nu> From: "Sprecher, Nurit (NSN - IL/Hod HaSharon)" To: "ext Loa Andersson" X-OriginalArrivalTime: 06 Jan 2009 16:45:38.0365 (UTC) FILETIME=[342FD6D0:01C9701E] Cc: MEAD team , "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as amead team document X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1174441022==" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org This is a multi-part message in MIME format. --===============1174441022== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C9701E.3402186E" This is a multi-part message in MIME format. ------_=_NextPart_001_01C9701E.3402186E Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, I support the acceptance of the document as a MEAD team document. Regarding the review process, I propose first to review, discuss and agree on the MPLS-TP OAM analysis document.=20 Best regards, Nurit =20 -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Loa Andersson Sent: Monday, December 29, 2008 16:47 To: MEAD team Subject: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as amead team document =20 All, =20 we have a proposal from the authors of draft-boutros-mpls-tp-loopback-00.txt to include it as a document that is coordinated by the the MEAD team. =20 Please respond (positive or negative) to this before Jan 7. =20 /Loa =20 --=20 =20 =20 Loa Andersson email: loa.andersson@redback.com Sr Strategy and Standards Manager loa@pi.nu Redback Networks phone: +46 8 632 77 14 An Ericsson Company _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop ------_=_NextPart_001_01C9701E.3402186E Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi,

I support the acceptance of the document as a = MEAD team document.

Regarding the review process, I propose first = to review, discuss and agree on the MPLS-TP OAM analysis document. =

Best regards,

Nurit

 

-----Original Message-----
From: mpls-interop-bounces@ietf.org = [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Loa Andersson
Sent: Monday, December 29, 2008 16:47
To: MEAD team
Subject: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt = as amead team document

 

All,

 

we have a proposal from the authors = of

draft-boutros-mpls-tp-loopback-00.txt to = include it as a document

that is coordinated by the the MEAD = team.

 

Please respond (positive or negative) to this = before Jan 7.

 

/Loa

 

--

 

 

Loa Andersson          &nbs= p;            = ;  email: loa.andersson@redback.com

Sr Strategy and Standards Manager           = loa@pi.nu

Redback = Networks           = ;           phone: +46 8 632 77 14

An Ericsson = Company

______________________________________________= _

Mpls-interop mailing = list

Mpls-interop@ietf.org=

https://www.ietf.org/mailman/listinfo/mpls-int= erop

------_=_NextPart_001_01C9701E.3402186E-- --===============1174441022== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop --===============1174441022==-- From mpls-interop-bounces@ietf.org Wed Jan 7 02:04:37 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C117C3A681A; Wed, 7 Jan 2009 02:04:37 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id DCABF3A6A09 for ; Wed, 7 Jan 2009 02:04:36 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.249 X-Spam-Level: X-Spam-Status: No, score=-6.249 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HELO_EQ_FR=0.35, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cS9WTFpO6DOH for ; Wed, 7 Jan 2009 02:04:36 -0800 (PST) Received: from smail6.alcatel.fr (gc-na5.alcatel.fr [64.208.49.5]) by core3.amsl.com (Postfix) with ESMTP id EF1583A687E for ; Wed, 7 Jan 2009 02:04:34 -0800 (PST) Received: from FRMRSSXCHHUB02.dc-m.alcatel-lucent.com (FRMRSSXCHHUB02.dc-m.alcatel-lucent.com [135.120.45.62]) by smail6.alcatel.fr (8.13.8/8.13.8/ICT) with ESMTP id n07A4K78008335 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NOT); Wed, 7 Jan 2009 11:04:20 +0100 Received: from FRMRSSXCHMBSB3.dc-m.alcatel-lucent.com ([135.120.45.41]) by FRMRSSXCHHUB02.dc-m.alcatel-lucent.com ([135.120.45.62]) with mapi; Wed, 7 Jan 2009 11:04:20 +0100 From: "LEVRAU, LIEVEN (LIEVEN)" To: Loa Andersson , MEAD team Date: Wed, 7 Jan 2009 11:04:22 +0100 Thread-Topic: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as a mead team document Thread-Index: AclpxFADsKmh3S1aQk2p4ETFivIuPgG6vpLA Message-ID: <4D3F2B2A3FE4B54DBF449418B192A1FE748B689C@FRMRSSXCHMBSB3.dc-m.alcatel-lucent.com> References: <4958E2C6.7030500@pi.nu> In-Reply-To: <4958E2C6.7030500@pi.nu> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.57 on 155.132.188.84 Subject: Re: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as a mead team document X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Support! ./ Lieven -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Loa Andersson Sent: 29 December 2008 15:47 To: MEAD team Subject: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as a mead team document All, we have a proposal from the authors of draft-boutros-mpls-tp-loopback-00.txt to include it as a document that is coordinated by the the MEAD team. Please respond (positive or negative) to this before Jan 7. /Loa -- Loa Andersson email: loa.andersson@redback.com Sr Strategy and Standards Manager loa@pi.nu Redback Networks phone: +46 8 632 77 14 An Ericsson Company _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 7 02:15:45 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 244243A68AD; Wed, 7 Jan 2009 02:15:45 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BDA6528C119; Wed, 7 Jan 2009 02:07:53 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.568 X-Spam-Level: X-Spam-Status: No, score=-2.568 tagged_above=-999 required=5 tests=[AWL=0.031, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ImP4GP7qeTau; Wed, 7 Jan 2009 02:07:53 -0800 (PST) Received: from neo.viciousnest.net (neo.viciousnest.net [192.71.80.124]) by core3.amsl.com (Postfix) with ESMTP id 31FAD3A6A28; Wed, 7 Jan 2009 02:07:52 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by neo.viciousnest.net (Postfix) with ESMTP id 89610F1C4; Wed, 7 Jan 2009 11:07:38 +0100 (CET) Received: from neo.viciousnest.net ([127.0.0.1]) by localhost (neo [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 31559-02; Wed, 7 Jan 2009 11:07:37 +0100 (CET) Received: from [127.0.0.1] (wdhcp-158-76.verkstad.net [192.36.158.76]) by neo.viciousnest.net (Postfix) with ESMTP id AB693F1C0; Wed, 7 Jan 2009 11:07:36 +0100 (CET) Message-ID: <49647EDF.3090001@pi.nu> Date: Wed, 07 Jan 2009 11:07:27 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: Yoichi Maeda , Greg Jones , Ghani Abbas , Huub Van Helvoort , Malcolm Betts , Hing-Kam Lam , tsbsg15@itu.int, statements@ietf.org Content-Type: multipart/mixed; boundary="------------050105000400050704080708" X-Virus-Scanned: by amavisd-new at viciousnest.net X-Mailman-Approved-At: Wed, 07 Jan 2009 02:15:44 -0800 Cc: Scott Bradner , IETF MEAD team Subject: [Mpls-interop] Liaison to ITU-T SG15, Q9/15, Q10/15, Q12/15 and Q14/15 X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org This is a multi-part message in MIME format. --------------050105000400050704080708 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit Dear Mr. Maeda, Mr. Abbas, Mr. van Helvoort, Mr. Betts and Mr. Lam Please find a liaison on Working Group Last Call on the MPLS-TP Internet Draft “MPLS Generic Associated Channel” Loa Andersson Chair of the MEAD Team. -- Loa Andersson Sr Strategy and Standards Manager Redback Networks phone: +46 8 632 77 14 An Ericsson company email: loa.andersson@redback.com loa@pi.nu --------------050105000400050704080708 Content-Type: application/msword; name="Liaison-LC-GACH.doc" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="Liaison-LC-GACH.doc" 0M8R4KGxGuEAAAAAAAAAAAAAAAAAAAAAPgADAP7/CQAGAAAAAAAAAAAAAAABAAAAOAAAAAAA AAAAEAAAOwAAAAEAAAD+////AAAAADcAAAD///////////////////////////////////// //////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////// 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Jan 9 06:59:53 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4803728C161; Fri, 9 Jan 2009 06:59:53 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B3BBE28C169 for ; Fri, 9 Jan 2009 06:59:51 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.319 X-Spam-Level: X-Spam-Status: No, score=-2.319 tagged_above=-999 required=5 tests=[AWL=0.280, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id t4wtYjf2Nk1X for ; Fri, 9 Jan 2009 06:59:50 -0800 (PST) Received: from av9-2-sn3.vrr.skanova.net (av9-2-sn3.vrr.skanova.net [81.228.9.186]) by core3.amsl.com (Postfix) with ESMTP id 8EEF728C161 for ; Fri, 9 Jan 2009 06:59:50 -0800 (PST) Received: by av9-2-sn3.vrr.skanova.net (Postfix, from userid 502) id 1D8BC37E83; Fri, 9 Jan 2009 15:59:36 +0100 (CET) Received: from smtp3-2-sn3.vrr.skanova.net (smtp3-2-sn3.vrr.skanova.net [81.228.9.102]) by av9-2-sn3.vrr.skanova.net (Postfix) with ESMTP id 054F037E70 for ; Fri, 9 Jan 2009 15:59:36 +0100 (CET) Received: from [127.0.0.1] (h133n2fls33o883.telia.com [217.208.62.133]) by smtp3-2-sn3.vrr.skanova.net (Postfix) with ESMTP id E52A537E49 for ; Fri, 9 Jan 2009 15:59:35 +0100 (CET) Message-ID: <49676653.8000704@pi.nu> Date: Fri, 09 Jan 2009 15:59:31 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: MEAD team Subject: [Mpls-interop] three liaisons from ITU-T X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org All, we have three liaisons from the SG15 on MPLS-TP issues. I've talked to Olaf and Russ and agreed that the MEAD team will prepare responses to all three liaisons. The liaisons are: 1. Title: LS24 - Comments on MPLS-TP working group drafts Submission Date: 2008-12-25 URL of the IETF Web page: https://datatracker.ietf.org/public/liaison_detail.cgi?detail_id=494 Please reply by 2009-01-31 From: Greg Jones(ITU-T SG 15) To: IETF MPLS, PWE WGs (Info: IETF MEAD For: Action 2. Title: LS26 - Cooperation Between IETF and ITU-T on the Development of MPLS-TP Submission Date: 2008-12-25 URL of the IETF Web page: https://datatracker.ietf.org/public/liaison_detail.cgi?detail_id=492 From: Greg Jones(ITU-T SG 15) To: IETF, IAB(chair@ietf.org,iab-chair@iab.org) For: Information 3. Title: LS28 - Generic Associated Channel (G-ACH) Requirement to Provide a Signalling Communication Channel (SCC) and a Management Communication Channel (MCC) for MPLS-TP Submission Date: 2008-12-25 URL of the IETF Web page: https://datatracker.ietf.org/public/liaison_detail.cgi?detail_id=491 Please reply by 2009-05-18 From: Greg Jones(ITU-T SG 15) To: IETF MPLS WG Co Chairs (Info: CCAMP WG Co Chairs, MEAD For: Action For LS24 Ben hs already done most of the job, what we need to do is to spin the responses from Bens mail in to liaison format. Agree on the response, confirm this by the MPLS WG and PWE3 chairs and send it together with with the updated draft. I need a volunteer to compile the actual liaison document. LS26 I will write the response, have it agreed by the MEAD team and approved by Russ and Olaf. A few things I will stress: - our satisfaction that the T-MPLS work is finally stopped - that we still need a date when all the requirements from the ITU-T is at hand - a document processing chart - that most ITU-T work should be by reference and *not* by producing new text, at the may deviate from existing IETF documents LS28 I need a volunteer to write a draft response. When we have the draft response we'll run it through the same type of process as for the other liaisons. /Loa -- Loa Andersson Sr Strategy and Standards Manager Redback Networks phone: +46 8 632 77 14 Ericsson /// email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 9 08:09:51 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A0D303A6358; Fri, 9 Jan 2009 08:09:51 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4622B3A69F2 for ; Fri, 9 Jan 2009 08:09:50 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.382 X-Spam-Level: X-Spam-Status: No, score=-1.382 tagged_above=-999 required=5 tests=[AWL=0.150, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1, RCVD_NUMERIC_HELO=2.067] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gNgCcCvxGSQ9 for ; Fri, 9 Jan 2009 08:09:49 -0800 (PST) Received: from smtp1.smtp.bt.com (smtp1.smtp.bt.com [217.32.164.137]) by core3.amsl.com (Postfix) with ESMTP id 2CA163A6358 for ; Fri, 9 Jan 2009 08:09:49 -0800 (PST) Received: from E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.109]) by smtp1.smtp.bt.com with Microsoft SMTPSVC(6.0.3790.1830); Fri, 9 Jan 2009 16:09:33 +0000 Received: from 217.32.164.172 ([217.32.164.172]) by E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.60]) via Exchange Front-End Server mail.bt.com ([193.113.197.26]) with Microsoft Exchange Server HTTP-DAV ; Fri, 9 Jan 2009 16:09:32 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Fri, 09 Jan 2009 16:09:28 +0000 From: Ben Niven-Jenkins To: Loa Andersson , MEAD team Message-ID: Thread-Topic: [Mpls-interop] three liaisons from ITU-T Thread-Index: AclydKXJkvgO9Rsj4k+TjO+EiOD2rw== In-Reply-To: <49676653.8000704@pi.nu> Mime-version: 1.0 X-OriginalArrivalTime: 09 Jan 2009 16:09:33.0082 (UTC) FILETIME=[A8D11FA0:01C97274] Subject: Re: [Mpls-interop] three liaisons from ITU-T X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Loa, On 09/01/2009 14:59, "Loa Andersson" wrote: > 1. > Title: LS24 - Comments on MPLS-TP working group drafts > Submission Date: 2008-12-25 > URL of the IETF Web page: > https://datatracker.ietf.org/public/liaison_detail.cgi?detail_id=494 > Please reply by 2009-01-31 > From: Greg Jones(ITU-T SG 15) > To: IETF MPLS, PWE WGs (Info: IETF MEAD > > For: Action > > > For LS24 Ben hs already done most of the job, what we need to do > is to spin the responses from Bens mail in to liaison format. Agree > on the response, confirm this by the MPLS WG and PWE3 chairs and send > it together with with the updated draft. > > I need a volunteer to compile the actual liaison document. I thought you'd already volunteered me but in any case I'm happy to do it. Ben _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Sat Jan 10 14:01:48 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 921753A689D; Sat, 10 Jan 2009 14:01:48 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A1BFF3A68F8 for ; Sat, 10 Jan 2009 14:01:46 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.342 X-Spam-Level: X-Spam-Status: No, score=-2.342 tagged_above=-999 required=5 tests=[AWL=0.257, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 66slHHZVFlzO for ; Sat, 10 Jan 2009 14:01:45 -0800 (PST) Received: from av9-2-sn2.hy.skanova.net (av9-2-sn2.hy.skanova.net [81.228.8.180]) by core3.amsl.com (Postfix) with ESMTP id 4C17D3A6B4A for ; Sat, 10 Jan 2009 14:01:06 -0800 (PST) Received: by av9-2-sn2.hy.skanova.net (Postfix, from userid 502) id 16DA038172; Sat, 10 Jan 2009 23:00:51 +0100 (CET) Received: from smtp4-1-sn2.hy.skanova.net (smtp4-1-sn2.hy.skanova.net [81.228.8.92]) by av9-2-sn2.hy.skanova.net (Postfix) with ESMTP id 98BE1380E6; Sat, 10 Jan 2009 23:00:50 +0100 (CET) Received: from [127.0.0.1] (h133n2fls33o883.telia.com [217.208.62.133]) by smtp4-1-sn2.hy.skanova.net (Postfix) with ESMTP id 7F52D37E48; Sat, 10 Jan 2009 23:00:50 +0100 (CET) Message-ID: <49691A8E.7000106@pi.nu> Date: Sat, 10 Jan 2009 23:00:46 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: MEAD team , Sami Boutros Subject: [Mpls-interop] draft-boutros-mpls-tp-loopback accepted as a MEAD team draft X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org All, we have support to adopt the draft-boutros-mpls-tp-loopback as a MEAD team draft, at the same time we welcome Sami as a member of the MEAD team. /Loa -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Sun Jan 11 20:17:59 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7EE083A6876; Sun, 11 Jan 2009 20:17:59 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 096E63A688A for ; Sun, 11 Jan 2009 20:17:59 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.792 X-Spam-Level: X-Spam-Status: No, score=-6.792 tagged_above=-999 required=5 tests=[AWL=-0.193, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zuyVvvuqsgD7 for ; Sun, 11 Jan 2009 20:17:58 -0800 (PST) Received: from rtp-iport-2.cisco.com (rtp-iport-2.cisco.com [64.102.122.149]) by core3.amsl.com (Postfix) with ESMTP id E19403A6876 for ; Sun, 11 Jan 2009 20:17:57 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,250,1231113600"; d="scan'208";a="33442007" Received: from rtp-dkim-2.cisco.com ([64.102.121.159]) by rtp-iport-2.cisco.com with ESMTP; 12 Jan 2009 04:17:28 +0000 Received: from rtp-core-2.cisco.com (rtp-core-2.cisco.com [64.102.124.13]) by rtp-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0C4HSbH021010; Sun, 11 Jan 2009 23:17:28 -0500 Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by rtp-core-2.cisco.com (8.13.8/8.13.8) with ESMTP id n0C4HSlp024099; Mon, 12 Jan 2009 04:17:28 GMT Received: from xmb-rtp-211.amer.cisco.com ([64.102.31.118]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Sun, 11 Jan 2009 23:17:27 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Sun, 11 Jan 2009 23:17:27 -0500 Message-ID: In-Reply-To: <49691A8E.7000106@pi.nu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] draft-boutros-mpls-tp-loopback accepted as a MEADteam draft Thread-Index: AclzbwQvOlBzjyrBTLeCQoh4LE4g9gA/YibQ References: <49691A8E.7000106@pi.nu> From: "Luyuan Fang (lufang)" To: "Loa Andersson" , "MEAD team" , "Sami Boutros (sboutros)" X-OriginalArrivalTime: 12 Jan 2009 04:17:27.0973 (UTC) FILETIME=[ADE81D50:01C9746C] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=1013; t=1231733848; x=1232597848; c=relaxed/simple; s=rtpdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=lufang@cisco.com; z=From:=20=22Luyuan=20Fang=20(lufang)=22=20 |Subject:=20RE=3A=20[Mpls-interop]=20draft-boutros-mpls-tp- loopback=20accepted=20as=20a=20MEADteam=20draft |Sender:=20 |To:=20=22Loa=20Andersson=22=20,=20=22MEAD=20tea m=22=20,=0A=20=20=20=20=20=20=20=20=2 2Sami=20Boutros=20(sboutros)=22=20; bh=GtgzECHC3JJEx5H9Tsb10p4B9xw1GDQLZd2NxKj3JXI=; b=fisX7jyI4rsy0exGy/PGJLppHYDq1e6rHwuo4ohCjdl9XarXfiN43GPa7s BexR9JyerMlFBdqbvEYBpwmQjCNftFY/1uc89ijn7ETgWUY2Z4G2lqImBdKZ Sj79P4XAeE; Authentication-Results: rtp-dkim-2; header.From=lufang@cisco.com; dkim=pass ( sig from cisco.com/rtpdkim2001 verified; ); Subject: Re: [Mpls-interop] draft-boutros-mpls-tp-loopback accepted as a MEADteam draft X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Support (sorry missed it earlier), and welcome, Sami! Luyuan -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Loa Andersson Sent: 10 January 2009 17:01 To: MEAD team; Sami Boutros (sboutros) Subject: [Mpls-interop] draft-boutros-mpls-tp-loopback accepted as a MEADteam draft All, we have support to adopt the draft-boutros-mpls-tp-loopback as a MEAD team draft, at the same time we welcome Sami as a member of the MEAD team. /Loa -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 13 04:16:45 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 049543A67E3; Tue, 13 Jan 2009 04:16:45 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0BE9A3A6943 for ; Tue, 13 Jan 2009 04:16:44 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.942 X-Spam-Level: X-Spam-Status: No, score=-0.942 tagged_above=-999 required=5 tests=[AWL=-0.001, BAYES_05=-1.11, HELO_EQ_AT=0.424, HOST_EQ_AT=0.745, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bsdlUAHn1ZHW for ; Tue, 13 Jan 2009 04:16:43 -0800 (PST) Received: from viefep18-int.chello.at (viefep18-int.chello.at [62.179.121.38]) by core3.amsl.com (Postfix) with ESMTP id D4F6B3A67E3 for ; Tue, 13 Jan 2009 04:16:42 -0800 (PST) Received: from edge03.upc.biz ([192.168.13.238]) by viefep18-int.chello.at (InterMail vM.7.09.01.00 201-2219-108-20080618) with ESMTP id <20090113121625.JXNW10001.viefep18-int.chello.at@edge03.upc.biz>; Tue, 13 Jan 2009 13:16:25 +0100 Received: from McAsterix.local ([24.132.228.153]) by edge03.upc.biz with edge id 30GN1b01L3KDBhC030GPE1; Tue, 13 Jan 2009 13:16:25 +0100 X-SourceIP: 24.132.228.153 Message-ID: <496C8616.7080009@chello.nl> Date: Tue, 13 Jan 2009 13:16:22 +0100 From: Huub van Helvoort User-Agent: Thunderbird 2.0.0.19 (Macintosh/20081209) MIME-Version: 1.0 To: Adrian Farrel References: <5C522985610A43179A66F564F4612749@your029b8cecfe> In-Reply-To: <5C522985610A43179A66F564F4612749@your029b8cecfe> Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on protection X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: hhelvoort@chello.nl List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi Adrian, You wondered: > Is anyone familiar with Q9/15's work on Generic Protection Schemes in > G.808 etc.? Yes, I am (because I am thew editor... as you could have seen on the Q9 homepage, or SG15 list of editors) G.808.1 is for the generic description of linear protection methodologies. G.808.2 is for the generic description of ring protection methodologies. Each technology has dedicated recommendations for the particular protection mechanisms. > Does anyone know whether the ITU-T has any expectations > about their work with regard to MPLS-TP? Like protection recommendations for carrier ethernet, i.e G.8031 (Linear) and G.8032 (Ring), Q9 has already developed and published G.8131 (Linear) and was working on G.8132 (Ring) -- of which the ring requirements were liaised to IETF. According to the JWT agreement work on the latter two is put on hold. Regards, Huub. -- ================================================================ Always remember that you are unique...just like everyone else... _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 13 04:21:17 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 420C93A67F6; Tue, 13 Jan 2009 04:21:17 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2EEF33A68F4 for ; Tue, 13 Jan 2009 04:21:16 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.257 X-Spam-Level: X-Spam-Status: No, score=-0.257 tagged_above=-999 required=5 tests=[AWL=-0.686, BAYES_20=-0.74, HELO_EQ_AT=0.424, HOST_EQ_AT=0.745] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cW4Ph26hZhOM for ; Tue, 13 Jan 2009 04:21:15 -0800 (PST) Received: from viefep11-int.chello.at (viefep11-int.chello.at [62.179.121.31]) by core3.amsl.com (Postfix) with ESMTP id EACEA3A67F6 for ; Tue, 13 Jan 2009 04:21:14 -0800 (PST) Received: from edge05.upc.biz ([192.168.13.212]) by viefep11-int.chello.at (InterMail vM.7.09.01.00 201-2219-108-20080618) with ESMTP id <20090113122058.DHJW9925.viefep11-int.chello.at@edge05.upc.biz>; Tue, 13 Jan 2009 13:20:58 +0100 Received: from McAsterix.local ([24.132.228.153]) by edge05.upc.biz with edge id 30Lw1b00b3KDBhC050Lxyz; Tue, 13 Jan 2009 13:20:58 +0100 X-SourceIP: 24.132.228.153 Message-ID: <496C8728.1090606@chello.nl> Date: Tue, 13 Jan 2009 13:20:56 +0100 From: Huub van Helvoort User-Agent: Thunderbird 2.0.0.19 (Macintosh/20081209) MIME-Version: 1.0 To: Loa Andersson References: <4958E2C6.7030500@pi.nu> In-Reply-To: <4958E2C6.7030500@pi.nu> Cc: MEAD team Subject: Re: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as a mead team document X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: hhelvoort@chello.nl List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi Loa You wrote: > we have a proposal from the authors of > draft-boutros-mpls-tp-loopback-00.txt to include it as a document > that is coordinated by the the MEAD team. > > Please respond (positive or negative) to this before Jan 7. I support this on the condition that it has a lower priority as the OAM analysis draft. Solution can only be provided after the analysis is finished. Regards, Huub. -- ================================================================ Always remember that you are unique...just like everyone else... _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 13 04:29:07 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C5FC63A6A3B; Tue, 13 Jan 2009 04:29:07 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 337C43A6A1D for ; Tue, 13 Jan 2009 04:29:06 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.353 X-Spam-Level: X-Spam-Status: No, score=-2.353 tagged_above=-999 required=5 tests=[AWL=0.246, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LCZo-cZ1U8LL for ; Tue, 13 Jan 2009 04:29:05 -0800 (PST) Received: from av8-2-sn3.vrr.skanova.net (av8-2-sn3.vrr.skanova.net [81.228.9.184]) by core3.amsl.com (Postfix) with ESMTP id 618253A6931 for ; Tue, 13 Jan 2009 04:29:05 -0800 (PST) Received: by av8-2-sn3.vrr.skanova.net (Postfix, from userid 502) id 3D77C381B1; Tue, 13 Jan 2009 13:28:50 +0100 (CET) Received: from smtp3-2-sn3.vrr.skanova.net (smtp3-2-sn3.vrr.skanova.net [81.228.9.102]) by av8-2-sn3.vrr.skanova.net (Postfix) with ESMTP id 52B37381B1; Tue, 13 Jan 2009 13:28:49 +0100 (CET) Received: from [127.0.0.1] (h133n2fls33o883.telia.com [217.208.62.133]) by smtp3-2-sn3.vrr.skanova.net (Postfix) with ESMTP id 2962937E42; Tue, 13 Jan 2009 13:28:49 +0100 (CET) Message-ID: <496C88FE.8010402@pi.nu> Date: Tue, 13 Jan 2009 13:28:46 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: hhelvoort@chello.nl References: <4958E2C6.7030500@pi.nu> <496C8728.1090606@chello.nl> In-Reply-To: <496C8728.1090606@chello.nl> Cc: MEAD team Subject: Re: [Mpls-interop] poll for draft-boutros-mpls-tp-loopback-00.txt as a mead team document X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Huub, thanks! I agree with your priority statement if it addresses the scheduling (meaning the order in which we will e.g. progress the drafts) within MEAD team and the wg processes, but I don't agree if priority means that one is more important than the other, they simply are on different development curves and addresses different problems :) . /Loa Huub van Helvoort wrote: > Hi Loa > > You wrote: > >> we have a proposal from the authors of >> draft-boutros-mpls-tp-loopback-00.txt to include it as a document >> that is coordinated by the the MEAD team. >> >> Please respond (positive or negative) to this before Jan 7. > > I support this on the condition that it has a lower priority > as the OAM analysis draft. Solution can only be provided after > the analysis is finished. > > Regards, Huub. > -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 13 05:33:35 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E62333A68F7; Tue, 13 Jan 2009 05:33:35 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2EB983A68F7 for ; Tue, 13 Jan 2009 05:33:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.827 X-Spam-Level: X-Spam-Status: No, score=-1.827 tagged_above=-999 required=5 tests=[AWL=0.772, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2IvtTYXkE8-w for ; Tue, 13 Jan 2009 05:33:33 -0800 (PST) Received: from asmtp1.iomartmail.com (asmtp1.iomartmail.com [62.128.201.248]) by core3.amsl.com (Postfix) with ESMTP id 1405C3A6856 for ; Tue, 13 Jan 2009 05:33:31 -0800 (PST) Received: from asmtp1.iomartmail.com (localhost.localdomain [127.0.0.1]) by asmtp1.iomartmail.com (8.12.11.20060308/8.12.8) with ESMTP id n0DDWvDl000313; Tue, 13 Jan 2009 13:32:57 GMT Received: from your029b8cecfe (dsl-sp-81-140-15-32.in-addr.broadbandscope.com [81.140.15.32]) (authenticated bits=0) by asmtp1.iomartmail.com (8.12.11.20060308/8.12.11) with ESMTP id n0DDWZkF032224; Tue, 13 Jan 2009 13:32:41 GMT Message-ID: <854FCC8044444D12BBCEA721A46072C2@your029b8cecfe> From: "Adrian Farrel" To: References: <5C522985610A43179A66F564F4612749@your029b8cecfe> <496C8616.7080009@chello.nl> Date: Tue, 13 Jan 2009 13:32:30 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on protection X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: Adrian Farrel List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi Huub, Yes. And thank you. But perhaps my question was too subtle? I am interested to know whether there are expectations that the generic descriptions will be applicable to MPLS-TP. In other words, I want to know whether the MPLS-TP design team needs to focus on G.808.1 and .2 in the knowledge that those Recommendations will drive MPLS-TP requirements, or whether we can be more relaxed and say that requirements for MPLS-TP protection schemes will be developed in their own right. In the case of the former, we have to watch out for MPLS-TP requirements being developed "by the back door". In the case of the latter, we would not want to hear later that such-and-such is a requirement "because it appears in G.808.1 or .2" A ----- Original Message ----- From: "Huub van Helvoort" To: "Adrian Farrel" Cc: Sent: Tuesday, January 13, 2009 12:16 PM Subject: Re: [Mpls-interop] ITU-T work on protection > Hi Adrian, > > You wondered: > >> Is anyone familiar with Q9/15's work on Generic Protection Schemes in >> G.808 etc.? > > Yes, I am (because I am thew editor... as you could have seen on > the Q9 homepage, or SG15 list of editors) > > G.808.1 is for the generic description of linear protection > methodologies. > G.808.2 is for the generic description of ring protection > methodologies. > > Each technology has dedicated recommendations for the > particular protection mechanisms. > >> Does anyone know whether the ITU-T has any expectations >> about their work with regard to MPLS-TP? > > Like protection recommendations for carrier ethernet, i.e > G.8031 (Linear) and G.8032 (Ring), Q9 has already developed > and published G.8131 (Linear) and was working on G.8132 (Ring) > -- of which the ring requirements were liaised to IETF. > > According to the JWT agreement work on the latter two is > put on hold. > > Regards, Huub. > > -- > ================================================================ > Always remember that you are unique...just like everyone else... > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 13 12:43:43 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E841328C0E2; Tue, 13 Jan 2009 12:43:42 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 72A1028C14F for ; Tue, 13 Jan 2009 12:43:40 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.299 X-Spam-Level: X-Spam-Status: No, score=-6.299 tagged_above=-999 required=5 tests=[AWL=0.300, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QNRGbIojkNzB for ; Tue, 13 Jan 2009 12:43:39 -0800 (PST) Received: from zrtps0kp.nortel.com (zrtps0kp.nortel.com [47.140.192.56]) by core3.amsl.com (Postfix) with ESMTP id 8CD6528C148 for ; Tue, 13 Jan 2009 12:43:38 -0800 (PST) Received: from zcarhxm2.corp.nortel.com (zcarhxm2.corp.nortel.com [47.129.230.99]) by zrtps0kp.nortel.com (Switch-2.2.6/Switch-2.2.0) with ESMTP id n0DKhJs22112; Tue, 13 Jan 2009 20:43:20 GMT X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Tue, 13 Jan 2009 15:43:16 -0500 Message-ID: <0BDFFF51DC89434FA33F8B37FCE363D515AE3DEA@zcarhxm2.corp.nortel.com> In-Reply-To: <854FCC8044444D12BBCEA721A46072C2@your029b8cecfe> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] ITU-T work on protection Thread-Index: Acl1g4ji4UT5V/2XQJe+/mOrZLJ6wgAOwfAA References: <5C522985610A43179A66F564F4612749@your029b8cecfe><496C8616.7080009@chello.nl> <854FCC8044444D12BBCEA721A46072C2@your029b8cecfe> From: "Malcolm Betts" To: "Adrian Farrel" Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on protection X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Adrian, since the intent of MPLS-TP is to satisfy (at least) the requirements of the transport network (as defined by the ITU-T) it would be prudent for the MPLS-TP design team to use G.808.1 and G.808.2 as a source of requirements. I anticipate that the ITU participants on the design team will assist in distilling these requirements and developing the text. This should minimize the comments from the ITU during the review process. Malcolm Betts Nortel Networks Phone: +1 613 763 7860 (ESN 393) email: betts01@nortel.com -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Adrian Farrel Sent: Tuesday, January 13, 2009 8:33 AM To: hhelvoort@chello.nl Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on protection Hi Huub, Yes. And thank you. But perhaps my question was too subtle? I am interested to know whether there are expectations that the generic descriptions will be applicable to MPLS-TP. In other words, I want to know whether the MPLS-TP design team needs to focus on G.808.1 and .2 in the knowledge that those Recommendations will drive MPLS-TP requirements, or whether we can be more relaxed and say that requirements for MPLS-TP protection schemes will be developed in their own right. In the case of the former, we have to watch out for MPLS-TP requirements being developed "by the back door". In the case of the latter, we would not want to hear later that such-and-such is a requirement "because it appears in G.808.1 or .2" A ----- Original Message ----- From: "Huub van Helvoort" To: "Adrian Farrel" Cc: Sent: Tuesday, January 13, 2009 12:16 PM Subject: Re: [Mpls-interop] ITU-T work on protection > Hi Adrian, > > You wondered: > >> Is anyone familiar with Q9/15's work on Generic Protection Schemes in >> G.808 etc.? > > Yes, I am (because I am thew editor... as you could have seen on > the Q9 homepage, or SG15 list of editors) > > G.808.1 is for the generic description of linear protection > methodologies. > G.808.2 is for the generic description of ring protection > methodologies. > > Each technology has dedicated recommendations for the > particular protection mechanisms. > >> Does anyone know whether the ITU-T has any expectations >> about their work with regard to MPLS-TP? > > Like protection recommendations for carrier ethernet, i.e > G.8031 (Linear) and G.8032 (Ring), Q9 has already developed > and published G.8131 (Linear) and was working on G.8132 (Ring) > -- of which the ring requirements were liaised to IETF. > > According to the JWT agreement work on the latter two is > put on hold. > > Regards, Huub. > > -- > ================================================================ > Always remember that you are unique...just like everyone else... > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 13 13:58:22 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BD3C428C163; Tue, 13 Jan 2009 13:58:22 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4470A28C178 for ; Tue, 13 Jan 2009 13:58:21 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.557 X-Spam-Level: X-Spam-Status: No, score=-6.557 tagged_above=-999 required=5 tests=[AWL=0.042, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gfSTHsI-eh3Q for ; Tue, 13 Jan 2009 13:58:20 -0800 (PST) Received: from slb-smtpout-01.boeing.com (slb-smtpout-01.boeing.com [130.76.64.48]) by core3.amsl.com (Postfix) with ESMTP id 4F3A528C163 for ; Tue, 13 Jan 2009 13:58:20 -0800 (PST) Received: from stl-av-01.boeing.com (stl-av-01.boeing.com [192.76.190.6]) by slb-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0DLw4qa003674 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 13 Jan 2009 13:58:05 -0800 (PST) Received: from stl-av-01.boeing.com (localhost [127.0.0.1]) by stl-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0DLw4HF010490; Tue, 13 Jan 2009 15:58:04 -0600 (CST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by stl-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0DLw17D010420; Tue, 13 Jan 2009 15:58:03 -0600 (CST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 13 Jan 2009 13:58:01 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Tue, 13 Jan 2009 13:57:59 -0800 Message-ID: <51661468CBD1354294533DA79E85955A0162927D@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <0BDFFF51DC89434FA33F8B37FCE363D515AE3DEA@zcarhxm2.corp.nortel.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] ITU-T work on protection Thread-Index: Acl1g4ji4UT5V/2XQJe+/mOrZLJ6wgAOwfAAAAKss0A= References: <5C522985610A43179A66F564F4612749@your029b8cecfe><496C8616.7080009@chello.nl><854FCC8044444D12BBCEA721A46072C2@your029b8cecfe> <0BDFFF51DC89434FA33F8B37FCE363D515AE3DEA@zcarhxm2.corp.nortel.com> From: "Drake, John E" To: "Malcolm Betts" , "Adrian Farrel" X-OriginalArrivalTime: 13 Jan 2009 21:58:01.0257 (UTC) FILETIME=[00B67190:01C975CA] Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on protection X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Malcolm, We have been gathering protection/restoration requirements since last fall with Huub's active involvement. If you think there are requirements in G.808.1 or G.808.2 that Huub neglected to tell us about, why are you only now mentioning this? Thanks, John >-----Original Message----- >From: Malcolm Betts [mailto:betts01@nortel.com] >Sent: Tuesday, January 13, 2009 12:43 PM >To: Adrian Farrel >Cc: mpls-interop@ietf.org >Subject: Re: [Mpls-interop] ITU-T work on protection > >Adrian, since the intent of MPLS-TP is to satisfy (at least) >the requirements of the transport network (as defined by the >ITU-T) it would be prudent for the MPLS-TP design team to use >G.808.1 and G.808.2 as a source of requirements. I anticipate >that the ITU participants on the design team will assist in >distilling these requirements and developing the text. This >should minimize the comments from the ITU during the review process. > > >Malcolm Betts >Nortel Networks >Phone: +1 613 763 7860 (ESN 393) >email: betts01@nortel.com > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Adrian Farrel >Sent: Tuesday, January 13, 2009 8:33 AM >To: hhelvoort@chello.nl >Cc: mpls-interop@ietf.org >Subject: Re: [Mpls-interop] ITU-T work on protection > >Hi Huub, > >Yes. And thank you. > >But perhaps my question was too subtle? > >I am interested to know whether there are expectations that >the generic descriptions will be applicable to MPLS-TP. In >other words, I want to know whether the MPLS-TP design team >needs to focus on G.808.1 and .2 in the knowledge that those >Recommendations will drive MPLS-TP requirements, or whether we >can be more relaxed and say that requirements for MPLS-TP >protection schemes will be developed in their own right. > >In the case of the former, we have to watch out for MPLS-TP >requirements being developed "by the back door". In the case >of the latter, we would not want to hear later that >such-and-such is a requirement "because it appears in G.808.1 or .2" > >A >----- Original Message ----- >From: "Huub van Helvoort" >To: "Adrian Farrel" >Cc: >Sent: Tuesday, January 13, 2009 12:16 PM >Subject: Re: [Mpls-interop] ITU-T work on protection > > >> Hi Adrian, >> >> You wondered: >> >>> Is anyone familiar with Q9/15's work on Generic Protection >Schemes in >>> G.808 etc.? >> >> Yes, I am (because I am thew editor... as you could have seen on the >> Q9 homepage, or SG15 list of editors) >> >> G.808.1 is for the generic description of linear protection >> methodologies. >> G.808.2 is for the generic description of ring protection >> methodologies. >> >> Each technology has dedicated recommendations for the particular >> protection mechanisms. >> >>> Does anyone know whether the ITU-T has any expectations about their >>> work with regard to MPLS-TP? >> >> Like protection recommendations for carrier ethernet, i.e >> G.8031 (Linear) and G.8032 (Ring), Q9 has already developed and >> published G.8131 (Linear) and was working on G.8132 (Ring) >> -- of which the ring requirements were liaised to IETF. >> >> According to the JWT agreement work on the latter two is put on hold. >> >> Regards, Huub. >> >> -- >> ================================================================ >> Always remember that you are unique...just like everyone else... >> > >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 13 14:28:48 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 451B43A6932; Tue, 13 Jan 2009 14:28:48 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id DC9BE3A689E for ; Tue, 13 Jan 2009 14:28:46 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.842 X-Spam-Level: X-Spam-Status: No, score=-1.842 tagged_above=-999 required=5 tests=[AWL=0.756, BAYES_00=-2.599, STOX_REPLY_TYPE=0.001] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Cxu41wX7RcQ1 for ; Tue, 13 Jan 2009 14:28:45 -0800 (PST) Received: from asmtp2.iomartmail.com (asmtp2.iomartmail.com [62.128.201.249]) by core3.amsl.com (Postfix) with ESMTP id 5B6043A689D for ; Tue, 13 Jan 2009 14:28:43 -0800 (PST) Received: from asmtp2.iomartmail.com (localhost.localdomain [127.0.0.1]) by asmtp2.iomartmail.com (8.12.11.20060308/8.12.8) with ESMTP id n0DMSG0J029996; Tue, 13 Jan 2009 22:28:18 GMT Received: from your029b8cecfe (dsl-sp-81-140-15-32.in-addr.broadbandscope.com [81.140.15.32]) (authenticated bits=0) by asmtp2.iomartmail.com (8.12.11.20060308/8.12.11) with ESMTP id n0DMS71R029923; Tue, 13 Jan 2009 22:28:08 GMT Message-ID: <004FF4DAD7004679BA8BE1C62C08C91E@your029b8cecfe> From: "Adrian Farrel" To: "Drake, John E" , "Malcolm Betts" References: <5C522985610A43179A66F564F4612749@your029b8cecfe><496C8616.7080009@chello.nl><854FCC8044444D12BBCEA721A46072C2@your029b8cecfe> <0BDFFF51DC89434FA33F8B37FCE363D515AE3DEA@zcarhxm2.corp.nortel.com> <51661468CBD1354294533DA79E85955A0162927D@XCH-SW-5V2.sw.nos.boeing.com> Date: Tue, 13 Jan 2009 22:28:04 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on protection X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: Adrian Farrel List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org To be a little fair to Malcolm (although I don't see why he shouldn't suffer) I think I raised the issue. I saw that there is planned work on the G.808 series and I wondered whether there was new work being done to develop generic protection/restoration requirements that would also apply to MPLS-TP. If so (it seemed to me), we would be seeing the development of new MPLS-TP requirements that were being developed without full and open discussion with the MPLS-TP design team. A ----- Original Message ----- From: "Drake, John E" To: "Malcolm Betts" ; "Adrian Farrel" Cc: Sent: Tuesday, January 13, 2009 9:57 PM Subject: RE: [Mpls-interop] ITU-T work on protection Malcolm, We have been gathering protection/restoration requirements since last fall with Huub's active involvement. If you think there are requirements in G.808.1 or G.808.2 that Huub neglected to tell us about, why are you only now mentioning this? Thanks, John >-----Original Message----- >From: Malcolm Betts [mailto:betts01@nortel.com] >Sent: Tuesday, January 13, 2009 12:43 PM >To: Adrian Farrel >Cc: mpls-interop@ietf.org >Subject: Re: [Mpls-interop] ITU-T work on protection > >Adrian, since the intent of MPLS-TP is to satisfy (at least) >the requirements of the transport network (as defined by the >ITU-T) it would be prudent for the MPLS-TP design team to use >G.808.1 and G.808.2 as a source of requirements. I anticipate >that the ITU participants on the design team will assist in >distilling these requirements and developing the text. This >should minimize the comments from the ITU during the review process. > > >Malcolm Betts >Nortel Networks >Phone: +1 613 763 7860 (ESN 393) >email: betts01@nortel.com > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Adrian Farrel >Sent: Tuesday, January 13, 2009 8:33 AM >To: hhelvoort@chello.nl >Cc: mpls-interop@ietf.org >Subject: Re: [Mpls-interop] ITU-T work on protection > >Hi Huub, > >Yes. And thank you. > >But perhaps my question was too subtle? > >I am interested to know whether there are expectations that >the generic descriptions will be applicable to MPLS-TP. In >other words, I want to know whether the MPLS-TP design team >needs to focus on G.808.1 and .2 in the knowledge that those >Recommendations will drive MPLS-TP requirements, or whether we >can be more relaxed and say that requirements for MPLS-TP >protection schemes will be developed in their own right. > >In the case of the former, we have to watch out for MPLS-TP >requirements being developed "by the back door". In the case >of the latter, we would not want to hear later that >such-and-such is a requirement "because it appears in G.808.1 or .2" > >A >----- Original Message ----- >From: "Huub van Helvoort" >To: "Adrian Farrel" >Cc: >Sent: Tuesday, January 13, 2009 12:16 PM >Subject: Re: [Mpls-interop] ITU-T work on protection > > >> Hi Adrian, >> >> You wondered: >> >>> Is anyone familiar with Q9/15's work on Generic Protection >Schemes in >>> G.808 etc.? >> >> Yes, I am (because I am thew editor... as you could have seen on the >> Q9 homepage, or SG15 list of editors) >> >> G.808.1 is for the generic description of linear protection >> methodologies. >> G.808.2 is for the generic description of ring protection >> methodologies. >> >> Each technology has dedicated recommendations for the particular >> protection mechanisms. >> >>> Does anyone know whether the ITU-T has any expectations about their >>> work with regard to MPLS-TP? >> >> Like protection recommendations for carrier ethernet, i.e >> G.8031 (Linear) and G.8032 (Ring), Q9 has already developed and >> published G.8131 (Linear) and was working on G.8132 (Ring) >> -- of which the ring requirements were liaised to IETF. >> >> According to the JWT agreement work on the latter two is put on hold. >> >> Regards, Huub. >> >> -- >> ================================================================ >> Always remember that you are unique...just like everyone else... >> > >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 13 15:21:28 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 26CB53A6A32; Tue, 13 Jan 2009 15:21:28 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A55843A6A4C for ; Tue, 13 Jan 2009 15:21:27 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.118 X-Spam-Level: X-Spam-Status: No, score=-1.118 tagged_above=-999 required=5 tests=[AWL=0.312, BAYES_00=-2.599, HELO_EQ_AT=0.424, HOST_EQ_AT=0.745] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xbutieCrMi15 for ; Tue, 13 Jan 2009 15:21:26 -0800 (PST) Received: from viefep11-int.chello.at (viefep11-int.chello.at [62.179.121.31]) by core3.amsl.com (Postfix) with ESMTP id 4ED2C3A6A32 for ; Tue, 13 Jan 2009 15:21:25 -0800 (PST) Received: from edge01.upc.biz ([192.168.13.236]) by viefep11-int.chello.at (InterMail vM.7.09.01.00 201-2219-108-20080618) with ESMTP id <20090113232108.GORX9925.viefep11-int.chello.at@edge01.upc.biz>; Wed, 14 Jan 2009 00:21:08 +0100 Received: from McAsterix.local ([24.132.228.153]) by edge01.upc.biz with edge id 3BM61b01V3KDBhC01BM7ZV; Wed, 14 Jan 2009 00:21:08 +0100 X-SourceIP: 24.132.228.153 Message-ID: <496D21E2.7020507@chello.nl> Date: Wed, 14 Jan 2009 00:21:06 +0100 From: Huub van Helvoort User-Agent: Thunderbird 2.0.0.19 (Macintosh/20081209) MIME-Version: 1.0 To: Adrian Farrel References: <5C522985610A43179A66F564F4612749@your029b8cecfe><496C8616.7080009@chello.nl><854FCC8044444D12BBCEA721A46072C2@your029b8cecfe> <0BDFFF51DC89434FA33F8B37FCE363D515AE3DEA@zcarhxm2.corp.nortel.com> <51661468CBD1354294533DA79E85955A0162927D@XCH-SW-5V2.sw.nos.boeing.com> <004FF4DAD7004679BA8BE1C62C08C91E@your029b8cecfe> In-Reply-To: <004FF4DAD7004679BA8BE1C62C08C91E@your029b8cecfe> Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on protection X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: hhelvoort@chello.nl List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi Adrian, You replied: > To be a little fair to Malcolm (although I don't see why he shouldn't > suffer) I think I raised the issue. > > I saw that there is planned work on the G.808 series and I wondered > whether there was new work being done to develop generic > protection/restoration requirements that would also apply to MPLS-TP. Because these are generic recommendations they are technology independent. It is up to the technology specific protection recommendation to identify one or more of the generic methods that will be used in that particular technology. It is not required that ALL generic methods described in G.808.x are supported in a particular technology. > If so (it seemed to me), we would be seeing the development of new > MPLS-TP requirements that were being developed without full and open > discussion with the MPLS-TP design team. If there are requirements added they are generic, i.e. technology independent. Regards, Huub. > ----- Original Message ----- > From: "Drake, John E" > To: "Malcolm Betts" ; > "Adrian Farrel" Cc: > Sent: Tuesday, January 13, 2009 9:57 PM Subject: RE: [Mpls-interop] > ITU-T work on protection > > > Malcolm, > > We have been gathering protection/restoration requirements since last > fall with Huub's active involvement. If you think there are > requirements in G.808.1 or G.808.2 that Huub neglected to tell us > about, why are you only now mentioning this? > > Thanks, > > John > >> -----Original Message----- >> From: Malcolm Betts >> [mailto:betts01@nortel.com] Sent: Tuesday, January 13, 2009 12:43 >> PM To: Adrian Farrel Cc: mpls-interop@ietf.org Subject: Re: >> [Mpls-interop] ITU-T work on protection >> >> Adrian, since the intent of MPLS-TP is to satisfy (at least) the >> requirements of the transport network (as defined by the ITU-T) it >> would be prudent for the MPLS-TP design team to use G.808.1 and >> G.808.2 as a source of requirements. I anticipate that the ITU >> participants on the design team will assist in distilling these >> requirements and developing the text. This should minimize the >> comments from the ITU during the review process. >> >> >> Malcolm Betts Nortel Networks Phone: +1 613 763 7860 (ESN 393) >> email: betts01@nortel.com >> >> -----Original Message----- >> From: mpls-interop-bounces@ietf.org >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Adrian Farrel >> Sent: Tuesday, January 13, 2009 8:33 AM To: hhelvoort@chello.nl Cc: >> mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on >> protection >> >> Hi Huub, >> >> Yes. And thank you. >> >> But perhaps my question was too subtle? >> >> I am interested to know whether there are expectations that the >> generic descriptions will be applicable to MPLS-TP. In other words, >> I want to know whether the MPLS-TP design team needs to focus on >> G.808.1 and .2 in the knowledge that those Recommendations will >> drive MPLS-TP requirements, or whether we can be more relaxed and >> say that requirements for MPLS-TP protection schemes will be >> developed in their own right. >> >> In the case of the former, we have to watch out for MPLS-TP >> requirements being developed "by the back door". In the case of the >> latter, we would not want to hear later that such-and-such is a >> requirement "because it appears in G.808.1 or .2" >> >> A >> ----- Original Message ----- >> From: "Huub van Helvoort" >> To: "Adrian Farrel" Cc: >> Sent: Tuesday, January 13, 2009 12:16 PM >> Subject: Re: [Mpls-interop] ITU-T work on protection >> >> >>> Hi Adrian, >>> >>> You wondered: >>> >>>> Is anyone familiar with Q9/15's work on Generic Protection >> Schemes in >>>> G.808 etc.? >>> >>> Yes, I am (because I am thew editor... as you could have seen on >>> the Q9 homepage, or SG15 list of editors) >>> >>> G.808.1 is for the generic description of linear protection >>> methodologies. G.808.2 is for the generic description of ring >>> protection methodologies. >>> >>> Each technology has dedicated recommendations for the particular >>> protection mechanisms. >>> >>>> Does anyone know whether the ITU-T has any expectations about >>>> their work with regard to MPLS-TP? >>> >>> Like protection recommendations for carrier ethernet, i.e G.8031 >>> (Linear) and G.8032 (Ring), Q9 has already developed and >>> published G.8131 (Linear) and was working on G.8132 (Ring) -- of >>> which the ring requirements were liaised to IETF. >>> >>> According to the JWT agreement work on the latter two is put on >>> hold. >>> >>> Regards, Huub. -- ================================================================ Always remember that you are unique...just like everyone else... _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 14 05:15:28 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B465E3A6B55; Wed, 14 Jan 2009 05:15:28 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3FFC03A6B59 for ; Wed, 14 Jan 2009 05:15:28 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.449 X-Spam-Level: X-Spam-Status: No, score=-6.449 tagged_above=-999 required=5 tests=[AWL=0.150, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QHgdV4d6Uhz2 for ; Wed, 14 Jan 2009 05:15:27 -0800 (PST) Received: from zrtps0kn.nortel.com (zrtps0kn.nortel.com [47.140.192.55]) by core3.amsl.com (Postfix) with ESMTP id C80853A6B55 for ; Wed, 14 Jan 2009 05:15:26 -0800 (PST) Received: from zcarhxm2.corp.nortel.com (zcarhxm2.corp.nortel.com [47.129.230.99]) by zrtps0kn.nortel.com (Switch-2.2.6/Switch-2.2.0) with ESMTP id n0EDF6E05173; Wed, 14 Jan 2009 13:15:06 GMT X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 14 Jan 2009 08:15:03 -0500 Message-ID: <0BDFFF51DC89434FA33F8B37FCE363D515AE4200@zcarhxm2.corp.nortel.com> In-Reply-To: <51661468CBD1354294533DA79E85955A0162927D@XCH-SW-5V2.sw.nos.boeing.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] ITU-T work on protection Thread-Index: Acl1g4ji4UT5V/2XQJe+/mOrZLJ6wgAOwfAAAAKss0AAH+qWcA== References: <5C522985610A43179A66F564F4612749@your029b8cecfe><496C8616.7080009@chello.nl><854FCC8044444D12BBCEA721A46072C2@your029b8cecfe> <0BDFFF51DC89434FA33F8B37FCE363D515AE3DEA@zcarhxm2.corp.nortel.com> <51661468CBD1354294533DA79E85955A0162927D@XCH-SW-5V2.sw.nos.boeing.com> From: "Malcolm Betts" To: "Drake, John E" , "Adrian Farrel" Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on protection X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org John, I have not been able to participate in this work. However, I think that Huub has probably done a good job in identifying the ITU-T requirements. So my assumption on the background for Adrian's question was can some of the requirements that have been gathered for G.808/.1/2 be discarded, my response is no, at least not without some wider discussion involving the ITU experts, via the ad hoc and Q9 email lists. Malcolm Betts Nortel Networks Phone: +1 613 763 7860 (ESN 393) email: betts01@nortel.com -----Original Message----- From: Drake, John E [mailto:John.E.Drake2@boeing.com] Sent: Tuesday, January 13, 2009 4:58 PM To: Betts, Malcolm (CAR:X632); Adrian Farrel Cc: mpls-interop@ietf.org Subject: RE: [Mpls-interop] ITU-T work on protection Malcolm, We have been gathering protection/restoration requirements since last fall with Huub's active involvement. If you think there are requirements in G.808.1 or G.808.2 that Huub neglected to tell us about, why are you only now mentioning this? Thanks, John >-----Original Message----- >From: Malcolm Betts [mailto:betts01@nortel.com] >Sent: Tuesday, January 13, 2009 12:43 PM >To: Adrian Farrel >Cc: mpls-interop@ietf.org >Subject: Re: [Mpls-interop] ITU-T work on protection > >Adrian, since the intent of MPLS-TP is to satisfy (at least) the >requirements of the transport network (as defined by the >ITU-T) it would be prudent for the MPLS-TP design team to use >G.808.1 and G.808.2 as a source of requirements. I anticipate that the >ITU participants on the design team will assist in distilling these >requirements and developing the text. This should minimize the >comments from the ITU during the review process. > > >Malcolm Betts >Nortel Networks >Phone: +1 613 763 7860 (ESN 393) >email: betts01@nortel.com > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Adrian Farrel >Sent: Tuesday, January 13, 2009 8:33 AM >To: hhelvoort@chello.nl >Cc: mpls-interop@ietf.org >Subject: Re: [Mpls-interop] ITU-T work on protection > >Hi Huub, > >Yes. And thank you. > >But perhaps my question was too subtle? > >I am interested to know whether there are expectations that >the generic descriptions will be applicable to MPLS-TP. In >other words, I want to know whether the MPLS-TP design team >needs to focus on G.808.1 and .2 in the knowledge that those >Recommendations will drive MPLS-TP requirements, or whether we >can be more relaxed and say that requirements for MPLS-TP >protection schemes will be developed in their own right. > >In the case of the former, we have to watch out for MPLS-TP >requirements being developed "by the back door". In the case >of the latter, we would not want to hear later that >such-and-such is a requirement "because it appears in G.808.1 or .2" > >A >----- Original Message ----- >From: "Huub van Helvoort" >To: "Adrian Farrel" >Cc: >Sent: Tuesday, January 13, 2009 12:16 PM >Subject: Re: [Mpls-interop] ITU-T work on protection > > >> Hi Adrian, >> >> You wondered: >> >>> Is anyone familiar with Q9/15's work on Generic Protection >Schemes in >>> G.808 etc.? >> >> Yes, I am (because I am thew editor... as you could have seen on the >> Q9 homepage, or SG15 list of editors) >> >> G.808.1 is for the generic description of linear protection >> methodologies. >> G.808.2 is for the generic description of ring protection >> methodologies. >> >> Each technology has dedicated recommendations for the particular >> protection mechanisms. >> >>> Does anyone know whether the ITU-T has any expectations about their >>> work with regard to MPLS-TP? >> >> Like protection recommendations for carrier ethernet, i.e >> G.8031 (Linear) and G.8032 (Ring), Q9 has already developed and >> published G.8131 (Linear) and was working on G.8132 (Ring) >> -- of which the ring requirements were liaised to IETF. >> >> According to the JWT agreement work on the latter two is put on hold. >> >> Regards, Huub. >> >> -- >> ================================================================ >> Always remember that you are unique...just like everyone else... >> > >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 14 05:42:59 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9FFB63A6B61; Wed, 14 Jan 2009 05:42:59 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7F0F228C119 for ; Wed, 14 Jan 2009 05:42:58 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.499 X-Spam-Level: X-Spam-Status: No, score=-6.499 tagged_above=-999 required=5 tests=[AWL=0.100, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vPy-8BnNNGlV for ; Wed, 14 Jan 2009 05:42:57 -0800 (PST) Received: from zrtps0kn.nortel.com (zrtps0kn.nortel.com [47.140.192.55]) by core3.amsl.com (Postfix) with ESMTP id 320D53A6B61 for ; Wed, 14 Jan 2009 05:42:56 -0800 (PST) Received: from zcarhxm2.corp.nortel.com (zcarhxm2.corp.nortel.com [47.129.230.99]) by zrtps0kn.nortel.com (Switch-2.2.6/Switch-2.2.0) with ESMTP id n0EDgdE07620; Wed, 14 Jan 2009 13:42:39 GMT X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 14 Jan 2009 08:42:23 -0500 Message-ID: <0BDFFF51DC89434FA33F8B37FCE363D515AE425E@zcarhxm2.corp.nortel.com> In-Reply-To: <496D21E2.7020507@chello.nl> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] ITU-T work on protection Thread-Index: Acl2Sxs1zUlC0AwvTpewM44icvRdZAAAYB2g References: <5C522985610A43179A66F564F4612749@your029b8cecfe><496C8616.7080009@chello.nl><854FCC8044444D12BBCEA721A46072C2@your029b8cecfe> <0BDFFF51DC89434FA33F8B37FCE363D515AE3DEA@zcarhxm2.corp.nortel.com> <51661468CBD1354294533DA79E85955A0162927D@XCH-SW-5V2.sw.nos.boeing.com> <004FF4DAD7004679BA8BE1C62C08C91E@your029b8cecfe> <496D21E2.7020507@chello.nl> From: "Malcolm Betts" To: Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on protection X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Huub, a few points: Its is possible that the MPLS-TP solutions may define a new method for the implementation of protection that Q9 may consider including in a revision to G.808.x A technology specific Recommendation (or in this case a RFC) is a reflection of a subset of G.808.x at some point in time before approval - i.e. we should not attempt a "real time tracking/change on the fly". We should rely on the common participants, use of the ITU/IETF email exploders and as a last resort liaisons to ensure that the appropriate experts are aware of any changes. Any ITU-T Recommendations on protection must be fully aligned with and reference the appropriate RFCs. Malcolm Betts Nortel Networks Phone: +1 613 763 7860 (ESN 393) email: betts01@nortel.com -----Original Message----- From: Huub van Helvoort [mailto:hhelvoort@chello.nl] Sent: Tuesday, January 13, 2009 6:21 PM To: Adrian Farrel Cc: Betts, Malcolm (CAR:X632); mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on protection Hi Adrian, You replied: > To be a little fair to Malcolm (although I don't see why he shouldn't > suffer) I think I raised the issue. > > I saw that there is planned work on the G.808 series and I wondered > whether there was new work being done to develop generic > protection/restoration requirements that would also apply to MPLS-TP. Because these are generic recommendations they are technology independent. It is up to the technology specific protection recommendation to identify one or more of the generic methods that will be used in that particular technology. It is not required that ALL generic methods described in G.808.x are supported in a particular technology. > If so (it seemed to me), we would be seeing the development of new > MPLS-TP requirements that were being developed without full and open > discussion with the MPLS-TP design team. If there are requirements added they are generic, i.e. technology independent. Regards, Huub. > ----- Original Message ----- > From: "Drake, John E" > To: "Malcolm Betts" ; > "Adrian Farrel" Cc: > Sent: Tuesday, January 13, 2009 9:57 PM Subject: RE: [Mpls-interop] > ITU-T work on protection > > > Malcolm, > > We have been gathering protection/restoration requirements since last > fall with Huub's active involvement. If you think there are > requirements in G.808.1 or G.808.2 that Huub neglected to tell us > about, why are you only now mentioning this? > > Thanks, > > John > >> -----Original Message----- >> From: Malcolm Betts >> [mailto:betts01@nortel.com] Sent: Tuesday, January 13, 2009 12:43 PM >> To: Adrian Farrel Cc: mpls-interop@ietf.org Subject: Re: >> [Mpls-interop] ITU-T work on protection >> >> Adrian, since the intent of MPLS-TP is to satisfy (at least) the >> requirements of the transport network (as defined by the ITU-T) it >> would be prudent for the MPLS-TP design team to use G.808.1 and >> G.808.2 as a source of requirements. I anticipate that the ITU >> participants on the design team will assist in distilling these >> requirements and developing the text. This should minimize the >> comments from the ITU during the review process. >> >> >> Malcolm Betts Nortel Networks Phone: +1 613 763 7860 (ESN 393) >> email: betts01@nortel.com >> >> -----Original Message----- >> From: mpls-interop-bounces@ietf.org >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Adrian Farrel >> Sent: Tuesday, January 13, 2009 8:33 AM To: hhelvoort@chello.nl Cc: >> mpls-interop@ietf.org Subject: Re: [Mpls-interop] ITU-T work on >> protection >> >> Hi Huub, >> >> Yes. And thank you. >> >> But perhaps my question was too subtle? >> >> I am interested to know whether there are expectations that the >> generic descriptions will be applicable to MPLS-TP. In other words, I >> want to know whether the MPLS-TP design team needs to focus on >> G.808.1 and .2 in the knowledge that those Recommendations will drive >> MPLS-TP requirements, or whether we can be more relaxed and say that >> requirements for MPLS-TP protection schemes will be developed in >> their own right. >> >> In the case of the former, we have to watch out for MPLS-TP >> requirements being developed "by the back door". In the case of the >> latter, we would not want to hear later that such-and-such is a >> requirement "because it appears in G.808.1 or .2" >> >> A >> ----- Original Message ----- >> From: "Huub van Helvoort" >> To: "Adrian Farrel" Cc: >> Sent: Tuesday, January 13, 2009 12:16 PM >> Subject: Re: [Mpls-interop] ITU-T work on protection >> >> >>> Hi Adrian, >>> >>> You wondered: >>> >>>> Is anyone familiar with Q9/15's work on Generic Protection >> Schemes in >>>> G.808 etc.? >>> >>> Yes, I am (because I am thew editor... as you could have seen on the >>> Q9 homepage, or SG15 list of editors) >>> >>> G.808.1 is for the generic description of linear protection >>> methodologies. G.808.2 is for the generic description of ring >>> protection methodologies. >>> >>> Each technology has dedicated recommendations for the particular >>> protection mechanisms. >>> >>>> Does anyone know whether the ITU-T has any expectations about their >>>> work with regard to MPLS-TP? >>> >>> Like protection recommendations for carrier ethernet, i.e G.8031 >>> (Linear) and G.8032 (Ring), Q9 has already developed and published >>> G.8131 (Linear) and was working on G.8132 (Ring) -- of which the >>> ring requirements were liaised to IETF. >>> >>> According to the JWT agreement work on the latter two is put on >>> hold. >>> >>> Regards, Huub. -- ================================================================ Always remember that you are unique...just like everyone else... _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Thu Jan 15 13:33:10 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 413AF3A6783; Thu, 15 Jan 2009 13:33:10 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8845D3A67AB for ; Thu, 15 Jan 2009 13:33:09 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[AWL=0.000, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ReTMv6SJamIH for ; Thu, 15 Jan 2009 13:33:08 -0800 (PST) Received: from rtp-iport-2.cisco.com (rtp-iport-2.cisco.com [64.102.122.149]) by core3.amsl.com (Postfix) with ESMTP id 65E883A6783 for ; Thu, 15 Jan 2009 13:33:08 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,272,1231113600"; d="scan'208";a="33905514" Received: from rtp-dkim-2.cisco.com ([64.102.121.159]) by rtp-iport-2.cisco.com with ESMTP; 15 Jan 2009 21:32:53 +0000 Received: from rtp-core-1.cisco.com (rtp-core-1.cisco.com [64.102.124.12]) by rtp-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0FLWrS8011199; Thu, 15 Jan 2009 16:32:53 -0500 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0FLWrV3002240; Thu, 15 Jan 2009 21:32:53 GMT Received: from xmb-rtp-206.amer.cisco.com ([64.102.31.32]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Thu, 15 Jan 2009 16:32:52 -0500 Received: from 10.98.32.163 ([10.98.32.163]) by xmb-rtp-206.amer.cisco.com ([64.102.31.32]) with Microsoft Exchange Server HTTP-DAV ; Thu, 15 Jan 2009 21:32:22 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Thu, 15 Jan 2009 16:32:21 -0500 From: George Swallow To: , Ben Niven-Jenkins Message-ID: Thread-Topic: Comments on MPLS-TP-Requirements Thread-Index: Acl3WL95s4Y9FbGQf06msQaMTinmuQ== Mime-version: 1.0 X-OriginalArrivalTime: 15 Jan 2009 21:32:52.0856 (UTC) FILETIME=[D2763780:01C97758] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=2979; t=1232055173; x=1232919173; c=relaxed/simple; s=rtpdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=swallow@cisco.com; z=From:=20George=20Swallow=20 |Subject:=20Comments=20on=20MPLS-TP-Requirements |Sender:=20 |To:=20,=20Ben=20Niven-Jenkins=20; bh=lSY7V3BpJEn456rrlRRc9akb0Gv3MAKpeWW9GRI3N0I=; b=VJKC/iVBVc8PNDp/SLX0VEM5WmKs1raTjLqs78kycG4rEqwTzoprZ+/T5J 23XHtrhPSGsy4N4UkG7o0s74Rs+Pz0ByF54SqjwimvUyCVhJFIRyMrQcMxgp dMnbqHbvTZ; Authentication-Results: rtp-dkim-2; header.From=swallow@cisco.com; dkim=pass ( sig from cisco.com/rtpdkim2001 verified; ); Subject: [Mpls-interop] Comments on MPLS-TP-Requirements X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org I have some comments on the requirements draft. Terminology. Layer network >From G.805 - layer network: A "topological component" that represents the complete set of access groups of the same type which may be associated for the purpose of transferring information (see 5.2.1.1). Now if this applies to the entire MPLS-TP nework of a single provider, then this is fine, but we need to add the clarification. But in reading through G.805 it is not clear to me whether applying this term to MPLS-TP applies to the whole network or to the set of tunnels that are stacked to a particular depth. This term seems to date back to the well defined hierarchies of PDH/SDH/ATM. See section 6 of G.805. For example VC/VP are two layers in ATM. In MPLS-TP the layering is only defined by how deeply nested otherwise-identical-elements are. Every node operates on the top-of-stack label (perhaps pushing or popping and then operating on a new top-of-stack label). Since most any node could handle many different layers, I fail to see the identifiable "topological component". The only thing that is readily identifiable here is the number of labels in the MPLS stack and which of those labels are being processed at a given node on a given connection(s). I find the term unintuitive and misleading. I would like to see it clarified or eliminated. Requirement 9 - It is not clear what this requirement actually requires. Particularly for those of us who have limited experience with other transport networks. This req. needs to be expanded or removed. Requirement 13 - s/taken/taking Requirement 16 - I agree with note on D. Requirement 17 - Pretty vacuous - ought to be dropped. Requirement 20 - is this talking about carrier's carrier or nested tunnels? Requirement 22 - this should be limited to non-shared-media networks. Requirement 25 - does this, taken with req 20, imply that we need to allow for separate addresses depending where in the label-stack we are? Requirement 29 - it is not clear to me what this requirement is for. For statically configured things, there is really no concept of upstream or downstream assigned. For things that are signaled in may in some cases be useful to allow upstream assignment. Would this requirement mean that for the cases where upstream assignment was natural, that we would Require a second solution that used downstream instead? I suggest removing the requirement. Requirement 32 - Why is this "MUST require" congruency? Isn't "MUST support" enough? Requirement 39 - this is a little vague. Requirement 47 - vague, unmeasureable, (and probably harmless). Requirement 55, 56 - do we have two default behaviors??? Or is 56 A a copy/paste error? Requirement 61 - does not apply to uni P2MP. Does this rule out UPSR for P2P? (Or is UPSR considered a higher layer construct). Requirement 76 - please add definitions for these four terms _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 16 07:18:07 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E8E633A6774; Fri, 16 Jan 2009 07:18:07 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8C7563A67B1 for ; Fri, 16 Jan 2009 07:18:07 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.042 X-Spam-Level: X-Spam-Status: No, score=-5.042 tagged_above=-999 required=5 tests=[AWL=-1.207, BAYES_40=-0.185, HELO_EQ_FR=0.35, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id f2JMJhYP4lKQ for ; Fri, 16 Jan 2009 07:18:06 -0800 (PST) Received: from smail6.alcatel.fr (colt-na5.alcatel.fr [62.23.212.5]) by core3.amsl.com (Postfix) with ESMTP id 03B8E3A6774 for ; Fri, 16 Jan 2009 07:18:04 -0800 (PST) Received: from FRVELSBHS02.ad2.ad.alcatel.com (frvelsbhs02.dc-m.alcatel-lucent.com [155.132.6.74]) by smail6.alcatel.fr (8.13.8/8.13.8/ICT) with ESMTP id n0GFHiZn001688 for ; Fri, 16 Jan 2009 16:17:44 +0100 Received: from FRVELSMBS21.ad2.ad.alcatel.com ([155.132.6.53]) by FRVELSBHS02.ad2.ad.alcatel.com with Microsoft SMTPSVC(6.0.3790.2499); Fri, 16 Jan 2009 16:17:43 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C977ED.9429005E" Date: Fri, 16 Jan 2009 16:17:43 +0100 Message-ID: <6FD21B53861BF44AA90A288402036AB401D6692C@FRVELSMBS21.ad2.ad.alcatel.com> In-Reply-To: <49691A8E.7000106@pi.nu> X-MS-Has-Attach: yes X-MS-TNEF-Correlator: Thread-Topic: Editor's version of draft-busi-mpls-tp-oam-framework-01-02.doc Thread-Index: AclzbwNApS86fv11TFWEtqL/BJJ2+AEflX3g References: <49691A8E.7000106@pi.nu> From: "BUSI ITALO" To: "MEAD team" X-OriginalArrivalTime: 16 Jan 2009 15:17:43.0903 (UTC) FILETIME=[947E4EF0:01C977ED] X-Scanned-By: MIMEDefang 2.57 on 155.132.188.84 Subject: [Mpls-interop] Editor's version of draft-busi-mpls-tp-oam-framework-01-02.doc X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org This is a multi-part message in MIME format. ------_=_NextPart_001_01C977ED.9429005E Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable In attachment the latest editor's version of the OAM Framework draft for discussion at our meeting next week. Thanks and have a nice week-end Italo ------_=_NextPart_001_01C977ED.9429005E Content-Type: application/msword; name="draft-busi-mpls-tp-oam-framework-01-02.doc" Content-Transfer-Encoding: base64 Content-Description: draft-busi-mpls-tp-oam-framework-01-02.doc Content-Disposition: attachment; filename="draft-busi-mpls-tp-oam-framework-01-02.doc" 0M8R4KGxGuEAAAAAAAAAAAAAAAAAAAAAPgADAP7/CQAGAAAAAAAAAAAAAAADAAAAXwEAAAAAAAAA EAAAYQEAAAEAAAD+////AAAAAFgBAABZAQAAYAEAAP////////////////////////////////// //////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////// 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Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop ------_=_NextPart_001_01C977ED.9429005E-- From mpls-interop-bounces@ietf.org Fri Jan 16 07:51:58 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3F5603A68D4; Fri, 16 Jan 2009 07:51:58 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 567E83A6904 for ; Fri, 16 Jan 2009 07:51:56 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3cyrhlZ1nwoB for ; Fri, 16 Jan 2009 07:51:54 -0800 (PST) Received: from imr1.ericy.com (imr1.ericy.com [198.24.6.9]) by core3.amsl.com (Postfix) with ESMTP id D2A463A68D4 for ; Fri, 16 Jan 2009 07:51:53 -0800 (PST) Received: from eusrcmw750.eamcs.ericsson.se (eusrcmw750.exu.ericsson.se [138.85.77.50]) by imr1.ericy.com (8.13.1/8.13.1) with ESMTP id n0GFuPvX021990; Fri, 16 Jan 2009 09:56:25 -0600 Received: from eusrcmw721.eamcs.ericsson.se ([138.85.77.21]) by eusrcmw750.eamcs.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Fri, 16 Jan 2009 09:51:16 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Fri, 16 Jan 2009 09:51:14 -0600 Message-ID: <941D5DCD8C42014FAF70FB7424686DCF0475B909@eusrcmw721.eamcs.ericsson.se> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] Comments on MPLS-TP-Requirements Thread-Index: Acl3WL95s4Y9FbGQf06msQaMTinmuQAj7q5Q References: From: "Eric Gray" To: "George Swallow" , , "Ben Niven-Jenkins" X-OriginalArrivalTime: 16 Jan 2009 15:51:16.0268 (UTC) FILETIME=[43F4D6C0:01C977F2] Subject: Re: [Mpls-interop] Comments on MPLS-TP-Requirements X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org George, See somments in-line below... -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of George Swallow Sent: Thursday, January 15, 2009 4:32 PM To: mpls-interop@ietf.org; Ben Niven-Jenkins Subject: [Mpls-interop] Comments on MPLS-TP-Requirements I have some comments on the requirements draft. Terminology. Layer network >From G.805 - layer network: A "topological component" that represents the complete set of access groups of the same type which may be associated for the purpose of transferring information (see 5.2.1.1). Now if this applies to the entire MPLS-TP nework of a single provider, then this is fine, but we need to add the clarification. But in reading through G.805 it is not clear to me whether applying this term to MPLS-TP applies to the whole network or to the set of tunnels that are stacked to a particular depth. This term seems to date back to the well defined hierarchies of PDH/SDH/ATM. See section 6 of G.805. For example VC/VP are two layers in ATM. In MPLS-TP the layering is only defined by how deeply nested otherwise-identical-elements are. Every node operates on the top-of-stack label (perhaps pushing or popping and then operating on a new top-of-stack label). Since most any node could handle many different layers, I fail to see the identifiable "topological component". The only thing that is readily identifiable here is the number of labels in the MPLS stack and which of those labels are being processed at a given node on a given connection(s). I find the term unintuitive and misleading. I would like to see it clarified or eliminated. ====================================BEGIN=============================== == EG For MPLS networks in general, the notion of a layer network as defined by G.805 is very abstract. For use of MPLS as a transport in the sense of PDH/SDH/SONET/ATM, however, this is an important concept to come to grips with. If we're going to define a "transport profile" for use of MPLS as a form of replacement technology, then we need this concept because - in that context - services are defined over a particular network layer. A lower layer may provide services to a higher layer, but all services for any given service context are defined for a single layer (which I believe is exactly the concept that the term "Layer Network" is trying to address). Clarification is a good idea; elimination is not. =====================================END================================ == Requirement 9 - It is not clear what this requirement actually requires. Particularly for those of us who have limited experience with other transport networks. This req. needs to be expanded or removed. ====================================BEGIN=============================== == EG If you are referring to General Requirement number 9, the meaning is fairly clear. To paraphrase, the logical/abstract entities that are defined in an MPLS-TP context to satisfy roles corresponding to like entities in a Generic Transport context, would ideally be manageable in a manner that does not require a complete paradigm shift for those people who are already managing Transport Networks (i.e. - via the same or similar management systems, using similar management objects, interacting in a similar way). =====================================END================================ == Requirement 13 - s/taken/taking Requirement 16 - I agree with note on D. Requirement 17 - Pretty vacuous - ought to be dropped. ====================================BEGIN=============================== == EG Again, clarification might be in order but elimnation is a bad idea. Scaling requirements are an essential part of defining protocols and interactions that will not require fork-lift system replacements as the character, usage and mix of services gets more complicated. If we do not define scaling requirements, then we are missing important criteria for determining the suitability of the transport profile. However, as is, this requirement is a little like motherhood, apple pie and puppies. =====================================END================================ == Requirement 20 - is this talking about carrier's carrier or nested tunnels? ====================================BEGIN=============================== == EG If it were me you were asking, the answer would be "yes." =====================================END================================ == Requirement 22 - this should be limited to non-shared-media networks. ====================================BEGIN=============================== == EG Why? =====================================END================================ == Requirement 25 - does this, taken with req 20, imply that we need to allow for separate addresses depending where in the label-stack we are? ====================================BEGIN=============================== == EG This seems intuitively obvious to me, so I must be missing something. If you view a transport network as service layers, isn't it obvious that we need to define separation of addressing at each layer? Is this not the very reason why we define the concept of layer networks? =====================================END================================ == Requirement 29 - it is not clear to me what this requirement is for. For statically configured things, there is really no concept of upstream or downstream assigned. For things that are signaled in may in some cases be useful to allow upstream assignment. Would this requirement mean that for the cases where upstream assignment was natural, that we would Require a second solution that used downstream instead? I suggest removing the requirement. ====================================BEGIN=============================== == EG I don't see how this requirement implies that downstream label assignment is the only allowed approach. The requirement simply says that MPLS-TP (as a solution) MUST support it. The requirement is silent on what else should be, could be, or might be supported in terms of label assignment. The requirement goes on to say that MPLS-TP MAY also support labels that are context specific, but neither requires this nor implies that another approach might not also be used. Note that your comment about static configuration would be good, if we had any serious intention of proposing an MPLS-TP solution that only supports static configuration. =====================================END================================ == Requirement 32 - Why is this "MUST require" congruency? Isn't "MUST support" enough? ====================================BEGIN=============================== == EG Not really. The solution should allow the operator to compel congruency. I agree that there may be cases in which both operators and vendors might find desirable advantages of asymmetric paths, but the transport network operator must be able to force MPLS-TP compliant equipment to establish symmetric (congruent) paths. And it seems to me that this should be a feature that must be explicitly turned off if it is unwanted. =====================================END================================ == Requirement 39 - this is a little vague. ====================================BEGIN=============================== == EG That is probably because the term "integrity" carries well known freight in many contexts, including transport networks. This should be expanded to clarify the meaning of the requirement. =====================================END================================ == Requirement 47 - vague, unmeasureable, (and probably harmless). ====================================BEGIN=============================== == EG This directly relates to requirement 9. In the same sense that it is an important goal to not require a new paradigm for management, it's equally important not to require a new paradigm for control of transport networks (this could be clarified quite a bit). =====================================END================================ == Requirement 55, 56 - do we have two default behaviors??? Or is 56 A a copy/paste error? ====================================BEGIN=============================== == EG These requirements are not defining default behavior; they define what the MPLS-TP MUST support. What an operator elects to use is up to them and may not even be consistent on a per-operator or per-network basis. However, the capabilities need to be supported by the MPLS-TP solution if the operator is to have the choice at all. =====================================END================================ == Requirement 61 - does not apply to uni P2MP. Does this rule out UPSR for P2P? (Or is UPSR considered a higher layer construct). ====================================BEGIN=============================== == EG What this requirement is about is maintaining path congruency. Perhaps it would be best worded accordingly? In other words, if protection activity preserves path congruency, then restoration should as well. Again, for a majority of cases, preserving path congruency is a goal and a decision to not do so should be an explicit one. =====================================END================================ == Requirement 76 - please add definitions for these four terms ====================================BEGIN=============================== == EG These are extremely well understood terms in transport networking. Like many cases where tersm have been used consistently in an industry for a very long time, it may be difficult to find a formal definition in one place that everyone agrees is authoritative. But their meaning is intuitive. Lockout means making a path operationally unavailable, the difference between forced and manual switchover is manual depends on the actual availability of the path to which a service is being switched, and a simulated fault is a means for manually inducing a fault indication as a means of testing protection. There is a pretty good discussion of the meaning of (most of) these terms at: http://www.ciscosystems.co.nz/univercd/cc/td/doc/product/mels/15530/12_2 _sv/config2/hcg_aps.htm#wp1032650 You may have seen it before. :-) I suggest adding them to the terminology section and capitalizing them in this requirement. =====================================END================================ == _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 16 09:15:51 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id F3FD028C23E; Fri, 16 Jan 2009 09:15:50 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2DD1E28C273 for ; Fri, 16 Jan 2009 09:15:49 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.483 X-Spam-Level: X-Spam-Status: No, score=-2.483 tagged_above=-999 required=5 tests=[AWL=0.116, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QKXabld85qHT for ; Fri, 16 Jan 2009 09:15:48 -0800 (PST) Received: from irvmail2.verizon.com (irvmail2.verizon.com [192.76.80.130]) by core3.amsl.com (Postfix) with ESMTP id E0CEC28C23E for ; Fri, 16 Jan 2009 09:15:47 -0800 (PST) Received: from smtptpa3.verizon.com (smtptpa3.verizon.com [138.83.71.176]) by irvmail2.verizon.com (8.13.3/8.13.3) with ESMTP id n0GHFPLn001318; Fri, 16 Jan 2009 11:15:26 -0600 (CST) Received: from ftwccout01.verizon.com (ftwccout01.verizon.com [138.83.131.134]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0GHFOFu028164; Fri, 16 Jan 2009 12:15:25 -0500 (EST) Received: from ftwccout01.verizon.com (unknown [127.0.0.1]) by ftwccout01.verizon.com (Symantec Mail Security) with ESMTP id 4D548528006; Fri, 16 Jan 2009 12:15:21 -0500 (EST) X-AuditID: 8a538386-a8cf9bb0000063b1-20-4970c0a9b020 Received: from smtpftw3.verizon.com (unknown [138.83.140.92]) by ftwccout01.verizon.com (EMF) with ESMTP id 217744E4006; Fri, 16 Jan 2009 12:15:21 -0500 (EST) Received: from FHDP1CCMXCG02.us.one.verizon.com ([166.68.240.34]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0GHFCdM001053; Fri, 16 Jan 2009 12:15:20 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG02.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Fri, 16 Jan 2009 12:15:18 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Fri, 16 Jan 2009 12:15:14 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D973659C00@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: <941D5DCD8C42014FAF70FB7424686DCF0475B909@eusrcmw721.eamcs.ericsson.se> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] Comments on MPLS-TP-Requirements Thread-Index: Acl3WL95s4Y9FbGQf06msQaMTinmuQAj7q5QAAOMq+A= References: <941D5DCD8C42014FAF70FB7424686DCF0475B909@eusrcmw721.eamcs.ericsson.se> From: "Malis, Andrew G. (Andy)" To: "Eric Gray" , "George Swallow" , , "Ben Niven-Jenkins" X-OriginalArrivalTime: 16 Jan 2009 17:15:18.0040 (UTC) FILETIME=[01163180:01C977FE] X-Brightmail-Tracker: AAAAAA== Subject: Re: [Mpls-interop] Comments on MPLS-TP-Requirements X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org I have some additional comments on both George and Eric's comments, also inline. I edited out comments where I did not have anything additional to add. Cheers, Andy -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray Sent: Friday, January 16, 2009 10:51 AM To: George Swallow; mpls-interop@ietf.org; Ben Niven-Jenkins Subject: Re: [Mpls-interop] Comments on MPLS-TP-Requirements George, See somments in-line below... -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of George Swallow Sent: Thursday, January 15, 2009 4:32 PM To: mpls-interop@ietf.org; Ben Niven-Jenkins Subject: [Mpls-interop] Comments on MPLS-TP-Requirements I have some comments on the requirements draft. Terminology. Layer network >From G.805 - layer network: A "topological component" that represents the complete set of access groups of the same type which may be associated for the purpose of transferring information (see 5.2.1.1). Now if this applies to the entire MPLS-TP nework of a single provider, then this is fine, but we need to add the clarification. But in reading through G.805 it is not clear to me whether applying this term to MPLS-TP applies to the whole network or to the set of tunnels that are stacked to a particular depth. This term seems to date back to the well defined hierarchies of PDH/SDH/ATM. See section 6 of G.805. For example VC/VP are two layers in ATM. In MPLS-TP the layering is only defined by how deeply nested otherwise-identical-elements are. Every node operates on the top-of-stack label (perhaps pushing or popping and then operating on a new top-of-stack label). Since most any node could handle many different layers, I fail to see the identifiable "topological component". The only thing that is readily identifiable here is the number of labels in the MPLS stack and which of those labels are being processed at a given node on a given connection(s). I find the term unintuitive and misleading. I would like to see it clarified or eliminated. ====================================BEGIN=============================== EG For MPLS networks in general, the notion of a layer network as defined by G.805 is very abstract. For use of MPLS as a transport in the sense of PDH/SDH/SONET/ATM, however, this is an important concept to come to Grips with. If we're going to define a "transport profile" for use of MPLS as a form of replacement technology, then we need this concept because - in that context - services are defined over a particular network layer. A lower layer may provide services to a higher layer, but all services for any given service context are defined for a single layer (which I believe is exactly the concept that the term "Layer Network" is trying to address). Clarification is a good idea; elimination is not. =====================================END================================ >Andy: I agree with Eric. Perhaps we can define Layer Network as Eric suggests in terms of the services provided to a higher layer. Thus (to respond to George's point), a particular physical network element may topologically belong to more than one layer network, depending on the actions it takes on the label stack, and thus could be modeled as multiple logical elements. Requirement 9 - It is not clear what this requirement actually requires. Particularly for those of us who have limited experience with other transport networks. This req. needs to be expanded or removed. ====================================BEGIN=============================== EG If you are referring to General Requirement number 9, the meaning is fairly clear. To paraphrase, the logical/abstract entities that are defined in an MPLS-TP context to satisfy roles corresponding to like entities in a Generic Transport context, would ideally be manageable in a manner that does not require a complete paradigm shift for those people who are already managing Transport Networks (i.e. - via the same or similar management systems, using similar management objects, interacting in a similar way). =====================================END================================ Andy> I also agree with Eric here, although I think I would have used the word "similar" rather than "coherent". Requirement 16 - I agree with note on D. Andy> The genesis of this requirement is obvious - previous generations of transport specs (especially involving rings) weren't sufficient to ensure multi-vendor interoperability. So perhaps this requirement could be re-written as a general requirement (and moved out of 16D to a top-level requirement) that MPLS-TP needs to be sufficiently well specified to ensure multi-vendor interoperability. While that also seems like motherhood and apple pie (like the next requirement), obviously it wasn't sufficiently obvious in previous transport specs. Requirement 17 - Pretty vacuous - ought to be dropped. ====================================BEGIN=============================== EG Again, clarification might be in order but elimnation is a bad idea. Scaling requirements are an essential part of defining protocols and interactions that will not require fork-lift system replacements as the character, usage and mix of services gets more complicated. If we do not define scaling requirements, then we are missing important criteria for determining the suitability of the transport profile. However, as is, this requirement is a little like motherhood, apple pie and puppies. =====================================END================================ Andy> Again, I agree that motherhood and apple pie are good things and it certainly doesn't hurt to spell out what may be obvious to us but perhaps not to all readers. Requirement 20 - is this talking about carrier's carrier or nested tunnels? ====================================BEGIN=============================== EG If it were me you were asking, the answer would be "yes." =====================================END================================ Andy> I agree. Just as an editorial comment, this requirement needs to ended with a ".". Requirement 22 - this should be limited to non-shared-media networks. ====================================BEGIN=============================== EG Why? =====================================END================================ Andy> Vendors have been beginning to ask Verizon to list the media networks where we would like to see MPLS-TP supported. So to make life easier for everyone, we may wish to actually enumerate the required media networks in this requirement. For Verizon, this list starts with OTN G.709, SONET/SDH GFP, and point-to-point Ethernet. We don't see a general requirement for MPLS-TP transported over shared Ethernet or other shared media networks, but that's just us. I would like to hear from other providers here as well, and I could perhaps be persuaded to consider shared networks as well, but as this time I don't see the requirement. Requirement 32 - Why is this "MUST require" congruency? Isn't "MUST support" enough? ====================================BEGIN=============================== EG Not really. The solution should allow the operator to compel congruency. I agree that there may be cases in which both operators and vendors might find desirable advantages of asymmetric paths, but the transport network operator must be able to force MPLS-TP compliant equipment to establish symmetric (congruent) paths. And it seems to me that this should be a feature that must be explicitly turned off if it is unwanted. =====================================END================================ Andy> Verizon absolutely requires that bidirectional paths be congruent. If we don't care about congruency, we'll use unidirectional paths in each direction. Requirement 39 - this is a little vague. ====================================BEGIN=============================== EG That is probably because the term "integrity" carries well known freight in many contexts, including transport networks. This should be expanded to clarify the meaning of the requirement. =====================================END================================ Andy> For VZ, this means that the MPLS-TP layer network must be able to support end-to-end integrity - it must not depend on the media network and physical switches. Cheers, Andy _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 19 07:39:15 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D39923A69AC; Mon, 19 Jan 2009 07:39:15 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D784A3A6B9B for ; Mon, 19 Jan 2009 07:39:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.385 X-Spam-Level: X-Spam-Status: No, score=-1.385 tagged_above=-999 required=5 tests=[AWL=0.147, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1, RCVD_NUMERIC_HELO=2.067] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id oFDyIKoI6t2F for ; Mon, 19 Jan 2009 07:39:14 -0800 (PST) Received: from smtp2.smtp.bt.com (smtp2.smtp.bt.com [217.32.164.150]) by core3.amsl.com (Postfix) with ESMTP id CBD993A69AC for ; Mon, 19 Jan 2009 07:39:13 -0800 (PST) Received: from E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.109]) by smtp2.smtp.bt.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 19 Jan 2009 15:38:55 +0000 Received: from 217.32.164.172 ([217.32.164.172]) by E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.60]) via Exchange Front-End Server mail.bt.com ([193.113.197.26]) with Microsoft Exchange Server HTTP-DAV ; Mon, 19 Jan 2009 15:38:55 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Mon, 19 Jan 2009 15:38:53 +0000 From: Ben Niven-Jenkins To: George Swallow , Message-ID: Thread-Topic: Comments on MPLS-TP-Requirements Thread-Index: Acl3WL95s4Y9FbGQf06msQaMTinmuQC80izA In-Reply-To: Mime-version: 1.0 X-OriginalArrivalTime: 19 Jan 2009 15:38:55.0708 (UTC) FILETIME=[09C999C0:01C97A4C] Subject: Re: [Mpls-interop] Comments on MPLS-TP-Requirements X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org George, On 15/01/2009 21:32, "George Swallow" wrote: > I have some comments on the requirements draft. > > Terminology. > > Layer network > > From G.805 - layer network: A "topological component" that represents the > complete set of access groups of the same type which may be associated for > the purpose of transferring information (see 5.2.1.1). > > Now if this applies to the entire MPLS-TP nework of a single provider, then > this is fine, but we need to add the clarification. It applies to an entire MPLS-TP network. That network may consist of a single provider or multiple providers. E.g. The Internet is a single layer network consisting of multiple sub-networks operated by different providers. > But in reading through G.805 it is not clear to me whether applying this > term to MPLS-TP applies to the whole network or to the set of tunnels that > are stacked to a particular depth. Yes, this can get a bit confusing. Label stack depth in MPLS is sub-layering in G.805 terminology. In other words each set of tunnels that are stacked to a particular depth do not form their own MPLS-TP layer network, they form part of an overall MPLS-TP layer network that consists of all LSP at any depth within the MPLS-TP layer network. In more understandable (I hope) but oversimplified terms. If each set of tunnels at a given stack depth were a separate layer network then they would need to be functionality independent of the other stack depths, e.g. They would require their own MP & CP at that depth. MPLS does not do that it uses a common CP/MP across all stack depths within a single MPLS layer network. > This term seems to date back to the well defined hierarchies of PDH/SDH/ATM. > See section 6 of G.805. For example VC/VP are two layers in ATM. In MPLS-TP > the layering is only defined by how deeply nested > otherwise-identical-elements are. Every node operates on the top-of-stack > label (perhaps pushing or popping and then operating on a new top-of-stack > label). Since most any node could handle many different layers, I fail to > see the identifiable "topological component". The only thing that is > readily identifiable here is the number of labels in the MPLS stack and > which of those labels are being processed at a given node on a given > connection(s). > > I find the term unintuitive and misleading. I would like to see it > clarified or eliminated. Let's try ad clarify this week along with your other comments. Ben _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Thu Jan 22 04:17:14 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B72D628C0E3; Thu, 22 Jan 2009 04:17:14 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A685B28C161 for ; Thu, 22 Jan 2009 04:17:13 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.174 X-Spam-Level: X-Spam-Status: No, score=-2.174 tagged_above=-999 required=5 tests=[AWL=0.075, BAYES_00=-2.599, HELO_EQ_SE=0.35] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bPX1wpknVlza for ; Thu, 22 Jan 2009 04:17:12 -0800 (PST) Received: from ns.elverljung.se (ns.elverljung.se [194.68.48.116]) by core3.amsl.com (Postfix) with ESMTP id 890F328C165 for ; Thu, 22 Jan 2009 04:17:12 -0800 (PST) Received: from [10.96.0.175] (unknown [217.39.1.66]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: loa) by ns.elverljung.se (Postfix) with ESMTPSA id 8CE082D805D for ; Thu, 22 Jan 2009 13:16:53 +0100 (CET) Message-ID: <497863AE.4020400@pi.nu> Date: Thu, 22 Jan 2009 13:16:46 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: MEAD team Subject: [Mpls-interop] meeting Tuesday Jan 27 X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org All, we will have a mead team meeting on Tuesday. Stewart, could yo set the meeting same coordinates as usual? Agenda: Report form the meeting in Ipswich. 1. TP Requirements (Ben) 2. TP Framework (Stewart) 3. NM Requirements (Eric) Outside the Ipswich meeting 4. Control Plane framework (Lou) 5. MEAD team organization /Loa -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Thu Jan 22 05:39:07 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D37133A6977; Thu, 22 Jan 2009 05:39:07 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3881428C191 for ; Thu, 22 Jan 2009 05:39:07 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.42 X-Spam-Level: X-Spam-Status: No, score=-2.42 tagged_above=-999 required=5 tests=[AWL=-2.675, BAYES_00=-2.599, FM_ASCII_ART_SPACINGc=0.833, HTML_MESSAGE=0.001, J_CHICKENPOX_24=0.6, SARE_GIF_ATTACH=1.42] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id W4sRP72zMPa7 for ; Thu, 22 Jan 2009 05:39:01 -0800 (PST) Received: from demumfd002.nsn-inter.net (demumfd002.nsn-inter.net [217.115.75.234]) by core3.amsl.com (Postfix) with ESMTP id F24CA3A6977 for ; Thu, 22 Jan 2009 05:38:59 -0800 (PST) Received: from demuprx016.emea.nsn-intra.net ([10.150.129.55]) by demumfd002.nsn-inter.net (8.12.11.20060308/8.12.11) with ESMTP id n0MDcfGk003050 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL) for ; Thu, 22 Jan 2009 14:38:41 +0100 Received: from demuexc024.nsn-intra.net (demuexc024.nsn-intra.net [10.159.32.11]) by demuprx016.emea.nsn-intra.net (8.12.11.20060308/8.12.11) with ESMTP id n0MDcfFx019861 for ; Thu, 22 Jan 2009 14:38:41 +0100 Received: from DEMUEXC014.nsn-intra.net ([10.150.128.25]) by demuexc024.nsn-intra.net with Microsoft SMTPSVC(6.0.3790.3959); Thu, 22 Jan 2009 14:38:40 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C97C96.BC8CCB3F" Date: Thu, 22 Jan 2009 14:38:32 +0100 Message-ID: <077E41CFFD002C4CAB7DFA4386A5326435CB5A@DEMUEXC014.nsn-intra.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: New version of OAM Analysis Thread-Index: Acl0wkLgooa5CIDQTKO6/4Y+XBPabQE7xJggALk5UTA= From: "Sprecher, Nurit (NSN - IL/Hod HaSharon)" To: "MEAD team" X-OriginalArrivalTime: 22 Jan 2009 13:38:40.0498 (UTC) FILETIME=[BC6D2D20:01C97C96] Cc: "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: [Mpls-interop] FW: New version of OAM Analysis X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org This is a multi-part message in MIME format. ------_=_NextPart_001_01C97C96.BC8CCB3F Content-Type: multipart/related; boundary="----_=_NextPart_002_01C97C96.BC8CCB3F"; type="multipart/alternative" ------_=_NextPart_002_01C97C96.BC8CCB3F Content-Type: multipart/alternative; boundary="----_=_NextPart_003_01C97C96.BC8CCB3F" ------_=_NextPart_003_01C97C96.BC8CCB3F Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, Attached please find the most updated version of the MPLS-TP OAM analysis document. This version is aligned with the latest version of the OAM requirement drafts, addresses comments we received and the outcomes from the discussions in Geneva. We will appreciate if you can review and comment. We would like to update the version in the IETF site.=20 Best regards, Nurit =20 ________________________________ From: Sprecher, Nurit (NSN - IL/Hod HaSharon)=20 Sent: Sunday, January 18, 2009 23:14 To: ext David Ward Cc: ext Huub van Helvoort; Weingarten, Yaacov (NSN - IL/Hod HaSharon); Sprecher, Nurit (NSN - IL/Hod HaSharon); Thomas D. Nadeau Subject: FW: New version of OAM Analysis =20 Hi Dave, Did you have the chance to go over the document?=20 Will it be possible to meet Tuesday evening to discuss the changes to the document that you propose? I would like to get ready for the session on Thursday. Best regards, Nurit =20 ________________________________ From: Weingarten, Yaacov (NSN - IL/Hod HaSharon)=20 Sent: Monday, January 12, 2009 16:30 To: David Ward Cc: Sprecher, Nurit (NSN - IL/Hod HaSharon) Subject: New version of OAM Analysis =20 Dave, hi =20 attached are both the XML and generated TXT version of the OAM Analysis document after we did a little editing to bring it closer into line with the topics that were discussed in Geneva. I understand that Loa wants to review the document in Ipswich (on Thu) so it would be nice if you could tell us what changes you are planning so that they can be included in the overview that Nurit needs to prepare. =20 Enjoy and Best Regards =20 Yaacov Weingarten =20 Nokia Siemens Networks GmbH & Co. KG Industry Environment - CET 3 Hangar St Neve Ne'eman B 45241 Hod Hasharon, Israel email: yaacov.weingarten@nsn.com =20 tel: +972-9-775 1827 mob: +972-54-220 0977 =20 =20 ------_=_NextPart_003_01C97C96.BC8CCB3F Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi,

Attached please = find the most updated version of the MPLS-TP OAM analysis document. This version = is aligned with the latest version of the OAM requirement drafts, addresses comments we received and the outcomes from the discussions in Geneva.

We will = appreciate if you can review and comment. We would like to update the version in the IETF = site.

Best = regards,

Nurit<= /span>

 =

From: Sprecher, Nurit (NSN - IL/Hod HaSharon)
Sent: Sunday, January 18, = 2009 23:14
To: ext David Ward
Cc: ext Huub van = Helvoort; Weingarten, Yaacov (NSN - IL/Hod HaSharon); Sprecher, Nurit (NSN - = IL/Hod HaSharon); Thomas D. Nadeau
Subject: FW: New version = of OAM Analysis

 

Hi = Dave,

Did you have the = chance to go over the document?

Will it be = possible to meet Tuesday evening to discuss the changes to the document that you = propose? I would like to get ready for the session on = Thursday.

Best = regards,

Nurit<= /span>

 =

From: Weingarten, Yaacov (NSN - IL/Hod HaSharon) =
Sent: Monday, January 12, = 2009 16:30
To: David Ward
Cc: Sprecher, Nurit (NSN = - IL/Hod HaSharon)
Subject: New version of = OAM Analysis

 

Dave, hi

 

attached are both the XML and generated TXT version = of the OAM Analysis document after we did a little editing to bring it closer = into line with the topics that were discussed in Geneva.  I understand that Loa = wants to review the document in Ipswich (on Thu) so it would be nice if you could = tell us what changes you are planning so that they can be included in the = overview that Nurit needs to prepare.

 

Enjoy and Best Regards

 

Yaacov = Weingarten<= font size=3D2 color=3Dpurple face=3D"Monotype Corsiva">

 

Nokia Siemens = Networks GmbH & Co. KG

Industry = Environment - CET

3 Hangar St Neve = Ne'eman B

45241 Hod = Hasharon, Israel

email:  = yaacov.weingarten@nsn.com

tel:     +972-9-775 = 1827

mob:   +972-54-220 0977

 

 

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Cg0KICAgIDwvcmVmZXJlbmNlcz4NCiAgPC9iYWNrPg0KPC9yZmM+ ------_=_NextPart_001_01C97C96.BC8CCB3F Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop ------_=_NextPart_001_01C97C96.BC8CCB3F-- From mpls-interop-bounces@ietf.org Fri Jan 23 07:57:46 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 59D543A67F2; Fri, 23 Jan 2009 07:57:46 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4B6A83A6ABF for ; Fri, 23 Jan 2009 07:57:45 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.301 X-Spam-Level: X-Spam-Status: No, score=-2.301 tagged_above=-999 required=5 tests=[AWL=-0.052, BAYES_00=-2.599, HELO_EQ_SE=0.35] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6q5xiP9k5yEP for ; Fri, 23 Jan 2009 07:57:40 -0800 (PST) Received: from ns.elverljung.se (ns.elverljung.se [194.68.48.116]) by core3.amsl.com (Postfix) with ESMTP id BE0DC3A67F2 for ; Fri, 23 Jan 2009 07:57:39 -0800 (PST) Received: from [172.31.253.82] (dmz-emmb.redback.com [155.53.1.254]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: loa) by ns.elverljung.se (Postfix) with ESMTPSA id B0CCB2D840B for ; Fri, 23 Jan 2009 16:57:19 +0100 (CET) Message-ID: <4979E8D9.8060904@pi.nu> Date: Fri, 23 Jan 2009 16:57:13 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: MEAD team Subject: [Mpls-interop] moving mpls-tp documents - you are supposed to respond X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org All, I'll to try push the next round of documents to wg last call, or have them accepted as wg documents asap. The discussions in Ipswich gave a of input that should be captured in several documents. This also means that we need to to have a couple of documents become wg documents. Here are the steps we need to take: draft-andersson-mpls-tp-oam-def (accept as a MEAD team doc?) draft-beller-mpls-tp-gach-dcn (accept as a MEAD team doc?) draft-boutros-mpls-tp-cv (accept as a MEAD team doc?) draft-boutros-mpls-tp-fault (accept as a MEAD team doc?) draft-boutros-mpls-tp-loopback (comments and review need!) draft-boutros-mpls-tp-performance (accept as a MEAD team doc?) draft-bryant-mpls-tp-ach-tlv (accept as a MEAD team doc?) draft-busi-mpls-tp-oam-framework (update based on Ipswich discussion!) draft-gray-mpls-tp-nm-req (accept as a wg doc!) draft-ietf-mpls-tp-framework (prepare for a wg last call, after the tp-requirements are wg last called) draft-ietf-mpls-tp-oam-requirements (we need to get existing comments written down, we will allow until Friday Jan 30 to do this, after that we'll prepare the doc for wg last call) draft-ietf-mpls-tp-requirements (prepare for wg last call) draft-martinotti-mpls-tp-interworking (accept as a MEAD team doc?) draft-sprecher-mpls-tp-oam-analysis (update as soon as the oam-requirements are stable) draft-sprecher-mpls-tp-survive-fwk (document has expired and should be republished) draft-yang-mpls-tp-ring-protection -analysis (accept as a MEAD team doc?) As a member of the MEAD team you are expected to respond to the "accept as a MEAD team doc"? As a a MEAD team member you are expected to supply your comments on draft-ietf-mpls-tp-oam-requirements on Fri Jan 30, the latest. As an editor you are supposed to take the action (when the time is right) for the other document. A reminder: Becoming a MEAD team document means that there a strong element in that draft that the MEAD needs to coordinate, it won't stop us from splitting or merge documents, just that we will do so in a coordinated way. Becoming wg documents means positive response to three questions. - does this document address a problem that the wg needs to solve - is this document a good enough start to solve this problem - is it within wg charter /Loa -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 23 08:17:04 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4006B3A6ACD; Fri, 23 Jan 2009 08:17:04 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id F382E3A6ACE for ; Fri, 23 Jan 2009 08:17:02 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.296 X-Spam-Level: X-Spam-Status: No, score=-2.296 tagged_above=-999 required=5 tests=[AWL=-0.047, BAYES_00=-2.599, HELO_EQ_SE=0.35] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id U81jfetPQB16 for ; Fri, 23 Jan 2009 08:17:02 -0800 (PST) Received: from ns.elverljung.se (ns.elverljung.se [194.68.48.116]) by core3.amsl.com (Postfix) with ESMTP id 8176F3A6ACD for ; Fri, 23 Jan 2009 08:17:01 -0800 (PST) Received: from [172.31.253.82] (dmz-emmb.redback.com [155.53.1.254]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: loa) by ns.elverljung.se (Postfix) with ESMTPSA id B49462D840B for ; Fri, 23 Jan 2009 17:16:42 +0100 (CET) Message-ID: <4979ED64.4020602@pi.nu> Date: Fri, 23 Jan 2009 17:16:36 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: MEAD team Subject: [Mpls-interop] the mead team mailing list X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Team, I will review the membership of the MEAD team, currently we have 54 people on the mailing list, this is far more than is active, and there are a few strong candidates to be included, but I'd like to take people off first. So if you receive this mail and thinks your are not interested, have the time or have other priorities, would you kindly notify me and David Sinicrope and we'll very gently take you off the list. /Loa -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 23 08:17:28 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 53C103A68E1; Fri, 23 Jan 2009 08:17:28 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7CEBB3A6A18 for ; Fri, 23 Jan 2009 08:17:27 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.156 X-Spam-Level: X-Spam-Status: No, score=-6.156 tagged_above=-999 required=5 tests=[AWL=0.093, BAYES_00=-2.599, HELO_EQ_FR=0.35, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Bl4tsf-QHbxl for ; Fri, 23 Jan 2009 08:17:26 -0800 (PST) Received: from smail6.alcatel.fr (gc-na5.alcatel.fr [64.208.49.5]) by core3.amsl.com (Postfix) with ESMTP id 009DC3A68E1 for ; Fri, 23 Jan 2009 08:17:25 -0800 (PST) Received: from FRVELSBHS05.ad2.ad.alcatel.com (frvelsbhs05.dc-m.alcatel-lucent.com [155.132.6.77]) by smail6.alcatel.fr (8.13.8/8.13.8/ICT) with ESMTP id n0NGH7BX019287; Fri, 23 Jan 2009 17:17:07 +0100 Received: from FRVELSMBS21.ad2.ad.alcatel.com ([155.132.6.53]) by FRVELSBHS05.ad2.ad.alcatel.com with Microsoft SMTPSVC(6.0.3790.2499); Fri, 23 Jan 2009 17:17:07 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Fri, 23 Jan 2009 17:17:06 +0100 Message-ID: <6FD21B53861BF44AA90A288402036AB401DB7F7D@FRVELSMBS21.ad2.ad.alcatel.com> In-Reply-To: <4979E8D9.8060904@pi.nu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] moving mpls-tp documents - you are supposed torespond Thread-Index: Acl9c07ni9ViDG/yTUuEhVK4QLw9YwAAquSQ References: <4979E8D9.8060904@pi.nu> From: "BUSI ITALO" To: "Loa Andersson" , "MEAD team" X-OriginalArrivalTime: 23 Jan 2009 16:17:07.0433 (UTC) FILETIME=[096A1590:01C97D76] X-Scanned-By: MIMEDefang 2.57 on 155.132.188.84 Subject: Re: [Mpls-interop] moving mpls-tp documents - you are supposed torespond X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Loa, By when are you expecting us to reply to the "accept as a MEAD team doc" question? Thanks and have a nice week-end Italo > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Loa Andersson > Sent: Friday, January 23, 2009 4:57 PM > To: MEAD team > Subject: [Mpls-interop] moving mpls-tp documents - you are > supposed torespond > > All, > > I'll to try push the next round of documents to wg last call, > or have them accepted as wg documents asap. The discussions in > Ipswich gave a of input that should be captured in several > documents. > > This also means that we need to to have a couple of documents > become wg documents. Here are the steps we need to take: > > draft-andersson-mpls-tp-oam-def (accept as a MEAD team doc?) > draft-beller-mpls-tp-gach-dcn (accept as a MEAD > team doc?) > draft-boutros-mpls-tp-cv (accept as a MEAD team doc?) > > draft-boutros-mpls-tp-fault (accept as a MEAD team doc?) > draft-boutros-mpls-tp-loopback (comments and > review need!) > draft-boutros-mpls-tp-performance (accept as a MEAD team doc?) > > draft-bryant-mpls-tp-ach-tlv (accept as a MEAD team doc?) > draft-busi-mpls-tp-oam-framework (update based on Ipswich > discussion!) > draft-gray-mpls-tp-nm-req (accept as a wg doc!) > > draft-ietf-mpls-tp-framework (prepare for a wg last > call, after > the tp-requirements > are wg last > called) > draft-ietf-mpls-tp-oam-requirements (we need to get > existing comments > written down, we will > allow until > Friday Jan 30 to do > this, after > that we'll prepare > the doc for wg > last call) > draft-ietf-mpls-tp-requirements (prepare for wg last call) > > draft-martinotti-mpls-tp-interworking (accept as a MEAD team doc?) > draft-sprecher-mpls-tp-oam-analysis (update as soon as the > oam-requirements are stable) > draft-sprecher-mpls-tp-survive-fwk (document has expired and should > be republished) > > draft-yang-mpls-tp-ring-protection > -analysis (accept as a MEAD team doc?) > > As a member of the MEAD team you are expected to respond to the > "accept as a MEAD team doc"? > > As a a MEAD team member you are expected to supply your comments on > draft-ietf-mpls-tp-oam-requirements on Fri Jan 30, the latest. > > As an editor you are supposed to take the action (when the time is > right) for the other document. > > A reminder: > > Becoming a MEAD team document means that there a strong element > in that draft that the MEAD needs to coordinate, it won't stop > us from splitting or merge documents, just that we will do so > in a coordinated way. > > Becoming wg documents means positive response to three questions. > > - does this document address a problem that the wg needs to > solve > - is this document a good enough start to solve this problem > - is it within wg charter > > /Loa > > > -- > > > Loa Andersson > > Sr Strategy and Standards Manager > Ericsson /// phone: +46 8 632 77 14 > > email: > loa.andersson@ericsson.com > > loa.andersson@redback.com > loa@pi.nu > > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 23 08:22:08 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 710DB3A6929; Fri, 23 Jan 2009 08:22:08 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2D49F3A6A51 for ; Fri, 23 Jan 2009 08:22:07 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.539 X-Spam-Level: X-Spam-Status: No, score=-2.539 tagged_above=-999 required=5 tests=[AWL=0.060, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3jM9L0l2WWOG for ; Fri, 23 Jan 2009 08:22:06 -0800 (PST) Received: from prattle.redback.com (prattle.redback.com [155.53.12.9]) by core3.amsl.com (Postfix) with ESMTP id 36D8B3A6929 for ; Fri, 23 Jan 2009 08:22:06 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by prattle.redback.com (Postfix) with ESMTP id C51FB1D86C; Fri, 23 Jan 2009 08:21:49 -0800 (PST) Received: from prattle.redback.com ([127.0.0.1]) by localhost (prattle [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 10929-01; Fri, 23 Jan 2009 08:21:49 -0800 (PST) Received: from rbsjx.ad.redback.com (rbsjxh1.redback.com [155.53.14.105]) by prattle.redback.com (Postfix) with ESMTP id 777C51D86E; Fri, 23 Jan 2009 08:21:49 -0800 (PST) Received: from RBSJX.ad.redback.com ([155.53.14.103]) by rbsjxh1.ad.redback.com ([155.53.14.105]) with mapi; Fri, 23 Jan 2009 08:21:48 -0800 From: Loa Andersson To: BUSI ITALO , MEAD team Date: Fri, 23 Jan 2009 08:21:46 -0800 Thread-Topic: Re: [Mpls-interop] moving mpls-tp documents - you are supposed torespond Thread-Index: Acl9c07ni9ViDG/yTUuEhVK4QLw9YwAAquSQAAANdPA= Message-ID: References: <4979E8D9.8060904@pi.nu> <6FD21B53861BF44AA90A288402036AB401DB7F7D@FRVELSMBS21.ad2.ad.alcatel.com> In-Reply-To: <6FD21B53861BF44AA90A288402036AB401DB7F7D@FRVELSMBS21.ad2.ad.alcatel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 X-Virus-Scanned: by amavisd-new at redback.com Subject: Re: [Mpls-interop] moving mpls-tp documents - you are supposed torespond X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Italo, As always with "sooner is better", but there are no other time limit than what is practical with respect to a certain document. But if you drag out to long you always risk that I make another call of consensus than what you'd wanted and then you have to live with it. /Loa -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of BUSI ITALO Sent: Friday, January 23, 2009 5:17 PM To: Loa Andersson; MEAD team Subject: Re: [Mpls-interop] moving mpls-tp documents - you are supposed torespond Loa, By when are you expecting us to reply to the "accept as a MEAD team doc" question? Thanks and have a nice week-end Italo > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Loa Andersson > Sent: Friday, January 23, 2009 4:57 PM > To: MEAD team > Subject: [Mpls-interop] moving mpls-tp documents - you are > supposed torespond > > All, > > I'll to try push the next round of documents to wg last call, > or have them accepted as wg documents asap. The discussions in > Ipswich gave a of input that should be captured in several > documents. > > This also means that we need to to have a couple of documents > become wg documents. Here are the steps we need to take: > > draft-andersson-mpls-tp-oam-def (accept as a MEAD team doc?) > draft-beller-mpls-tp-gach-dcn (accept as a MEAD > team doc?) > draft-boutros-mpls-tp-cv (accept as a MEAD team doc?) > > draft-boutros-mpls-tp-fault (accept as a MEAD team doc?) > draft-boutros-mpls-tp-loopback (comments and > review need!) > draft-boutros-mpls-tp-performance (accept as a MEAD team doc?) > > draft-bryant-mpls-tp-ach-tlv (accept as a MEAD team doc?) > draft-busi-mpls-tp-oam-framework (update based on Ipswich > discussion!) > draft-gray-mpls-tp-nm-req (accept as a wg doc!) > > draft-ietf-mpls-tp-framework (prepare for a wg last > call, after > the tp-requirements > are wg last > called) > draft-ietf-mpls-tp-oam-requirements (we need to get > existing comments > written down, we will > allow until > Friday Jan 30 to do > this, after > that we'll prepare > the doc for wg > last call) > draft-ietf-mpls-tp-requirements (prepare for wg last call) > > draft-martinotti-mpls-tp-interworking (accept as a MEAD team doc?) > draft-sprecher-mpls-tp-oam-analysis (update as soon as the > oam-requirements are stable) > draft-sprecher-mpls-tp-survive-fwk (document has expired and should > be republished) > > draft-yang-mpls-tp-ring-protection > -analysis (accept as a MEAD team doc?) > > As a member of the MEAD team you are expected to respond to the > "accept as a MEAD team doc"? > > As a a MEAD team member you are expected to supply your comments on > draft-ietf-mpls-tp-oam-requirements on Fri Jan 30, the latest. > > As an editor you are supposed to take the action (when the time is > right) for the other document. > > A reminder: > > Becoming a MEAD team document means that there a strong element > in that draft that the MEAD needs to coordinate, it won't stop > us from splitting or merge documents, just that we will do so > in a coordinated way. > > Becoming wg documents means positive response to three questions. > > - does this document address a problem that the wg needs to > solve > - is this document a good enough start to solve this problem > - is it within wg charter > > /Loa > > > -- > > > Loa Andersson > > Sr Strategy and Standards Manager > Ericsson /// phone: +46 8 632 77 14 > > email: > loa.andersson@ericsson.com > > loa.andersson@redback.com > loa@pi.nu > > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 23 09:04:16 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6E58A3A67F2; Fri, 23 Jan 2009 09:04:16 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B44493A68D7 for ; Fri, 23 Jan 2009 09:04:15 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.818 X-Spam-Level: X-Spam-Status: No, score=-1.818 tagged_above=-999 required=5 tests=[AWL=0.781, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HcQVDi85F78Q for ; Fri, 23 Jan 2009 09:04:14 -0800 (PST) Received: from asmtp2.iomartmail.com (asmtp2.iomartmail.com [62.128.201.249]) by core3.amsl.com (Postfix) with ESMTP id 850743A67F2 for ; Fri, 23 Jan 2009 09:04:14 -0800 (PST) Received: from asmtp2.iomartmail.com (localhost.localdomain [127.0.0.1]) by asmtp2.iomartmail.com (8.12.11.20060308/8.12.8) with ESMTP id n0NH3iZx002800; Fri, 23 Jan 2009 17:03:44 GMT Received: from your029b8cecfe (dsl-sp-81-140-15-32.in-addr.broadbandscope.com [81.140.15.32]) (authenticated bits=0) by asmtp2.iomartmail.com (8.12.11.20060308/8.12.11) with ESMTP id n0NH3hgk002787; Fri, 23 Jan 2009 17:03:43 GMT Message-ID: <25230BFC2253423C8716912AF248F63E@your029b8cecfe> From: "Adrian Farrel" To: "Loa Andersson" , "MEAD team" References: <4979E8D9.8060904@pi.nu> Date: Fri, 23 Jan 2009 17:03:29 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Subject: Re: [Mpls-interop] moving mpls-tp documents - you are supposed torespond X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: Adrian Farrel List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi Loa, > draft-andersson-mpls-tp-oam-def (accept as a MEAD team doc?) Yes. But will need significantly more work once accepted. > draft-beller-mpls-tp-gach-dcn (accept as a MEAD team doc?) Yes. Addresses a requirement. But will need some more details once accepted. (I am a co-author) > draft-boutros-mpls-tp-cv (accept as a MEAD team doc?) Not oposed. I have some confusion about the control plane aspects of this draft. > draft-boutros-mpls-tp-fault (accept as a MEAD team doc?) No, not yet. This I-D is quite significantly different from the way faults are handled and notified in GMPLS (the candidate control plane) and some convergence is desirable. > draft-boutros-mpls-tp-loopback (comments and review need!) No, not yet. I do not see that the requirements for this work are present in the OAM requirements. > draft-boutros-mpls-tp-performance (accept as a MEAD team doc?) No, not yet. The OAM requirements for performance measurement and reporting do not have consensus (IMHO). > draft-bryant-mpls-tp-ach-tlv (accept as a MEAD team doc?) I am wary of a document that defines specific TLVs without describing their use. Indeed this use is defered to other documents without reference. This means that specific TLVs may be being created without a valid use, or in a format that cannot be used. Better to move the definition of the TLV structure, the IANA registry, and the Null TLV into [GAL-GACH] and to move the definition of the specific TLVs into their own I-Ds. If that happens, this I-D should be deleted. > draft-busi-mpls-tp-oam-framework (update based on Ipswich discussion!) Yes, but only after updates are submitted. > draft-gray-mpls-tp-nm-req (accept as a wg doc!) Yes, but only after Ipswich updates are submitted. > draft-ietf-mpls-tp-framework > (prepare for a wg last call, after the > tp-requirements are wg last called) Believe this would be very premature. The f/w cannot describe many of the MPLS-TP functions as they have not been developed yet. We should keep updating this document until the MPLS-TP scenery is in focus. > draft-ietf-mpls-tp-oam-requirements (we need to get existing comments > written down, we will allow until > Friday Jan 30 to do this, after > that we'll prepare the doc for wg > last call) Sorry, is this a last call for comments that need to be in before a last call for comments can be issued? > draft-ietf-mpls-tp-requirements (prepare for wg last call) Agree, but will need substantial input from ITU before last call. > draft-martinotti-mpls-tp-interworking (accept as a MEAD team doc?) No, not yet. I do not believe that many of these scenarios are within scope. We are (still!) waiting for a set of deployment scenarios from the ITU. > draft-sprecher-mpls-tp-oam-analysis (update as soon as the > oam-requirements are stable) Agreed. Work in progress. > draft-sprecher-mpls-tp-survive-fwk (document has expired and should > be republished) In hand. > draft-yang-mpls-tp-ring-protection-analysis > (accept as a MEAD team doc?) No. Useful background material and input to draft-sprecher-mpls-tp-survive-fwk, but not needed as an RFC. > As a member of the MEAD team you are expected to respond to the > "accept as a MEAD team doc"? I did. > As a a MEAD team member you are expected to supply your comments on > draft-ietf-mpls-tp-oam-requirements on Fri Jan 30, the latest. I will. > As an editor you are supposed to take the action (when the time is > right) for the other document. I plan to. Adrian _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 23 13:40:33 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0A7383A67F3; Fri, 23 Jan 2009 13:40:33 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4AE2E3A680D for ; Fri, 23 Jan 2009 13:40:31 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.53 X-Spam-Level: X-Spam-Status: No, score=-1.53 tagged_above=-999 required=5 tests=[AWL=0.468, BAYES_00=-2.599, J_CHICKENPOX_24=0.6, STOX_REPLY_TYPE=0.001] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2XMaHswKPXHt for ; Fri, 23 Jan 2009 13:40:30 -0800 (PST) Received: from asmtp2.iomartmail.com (asmtp2.iomartmail.com [62.128.201.249]) by core3.amsl.com (Postfix) with ESMTP id 38F293A67F3 for ; Fri, 23 Jan 2009 13:40:30 -0800 (PST) Received: from asmtp2.iomartmail.com (localhost.localdomain [127.0.0.1]) by asmtp2.iomartmail.com (8.12.11.20060308/8.12.8) with ESMTP id n0NLeABj022800; Fri, 23 Jan 2009 21:40:10 GMT Received: from your029b8cecfe (dsl-sp-81-140-15-32.in-addr.broadbandscope.com [81.140.15.32]) (authenticated bits=0) by asmtp2.iomartmail.com (8.12.11.20060308/8.12.11) with ESMTP id n0NLe94m022792; Fri, 23 Jan 2009 21:40:09 GMT Message-ID: From: "Adrian Farrel" To: "Sprecher, Nurit \(NSN - IL/Hod HaSharon\)" , "MEAD team" References: <077E41CFFD002C4CAB7DFA4386A5326435CB5A@DEMUEXC014.nsn-intra.net> Date: Fri, 23 Jan 2009 21:40:02 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Cc: "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] FW: New version of OAM Analysis X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: Adrian Farrel List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Nurit, I suggest you don't wait for review and comment, but post the updated version. A ----- Original Message ----- From: "Sprecher, Nurit (NSN - IL/Hod HaSharon)" To: "MEAD team" Cc: "Weingarten, Yaacov (NSN - IL/Hod HaSharon)" Sent: Thursday, January 22, 2009 1:38 PM Subject: [Mpls-interop] FW: New version of OAM Analysis Hi, Attached please find the most updated version of the MPLS-TP OAM analysis document. This version is aligned with the latest version of the OAM requirement drafts, addresses comments we received and the outcomes from the discussions in Geneva. We will appreciate if you can review and comment. We would like to update the version in the IETF site. Best regards, Nurit ________________________________ From: Sprecher, Nurit (NSN - IL/Hod HaSharon) Sent: Sunday, January 18, 2009 23:14 To: ext David Ward Cc: ext Huub van Helvoort; Weingarten, Yaacov (NSN - IL/Hod HaSharon); Sprecher, Nurit (NSN - IL/Hod HaSharon); Thomas D. Nadeau Subject: FW: New version of OAM Analysis Hi Dave, Did you have the chance to go over the document? Will it be possible to meet Tuesday evening to discuss the changes to the document that you propose? I would like to get ready for the session on Thursday. Best regards, Nurit ________________________________ From: Weingarten, Yaacov (NSN - IL/Hod HaSharon) Sent: Monday, January 12, 2009 16:30 To: David Ward Cc: Sprecher, Nurit (NSN - IL/Hod HaSharon) Subject: New version of OAM Analysis Dave, hi attached are both the XML and generated TXT version of the OAM Analysis document after we did a little editing to bring it closer into line with the topics that were discussed in Geneva. I understand that Loa wants to review the document in Ipswich (on Thu) so it would be nice if you could tell us what changes you are planning so that they can be included in the overview that Nurit needs to prepare. Enjoy and Best Regards Yaacov Weingarten Nokia Siemens Networks GmbH & Co. KG Industry Environment - CET 3 Hangar St Neve Ne'eman B 45241 Hod Hasharon, Israel email: yaacov.weingarten@nsn.com tel: +972-9-775 1827 mob: +972-54-220 0977 -------------------------------------------------------------------------------- > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Sat Jan 24 09:35:52 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E265D28C17D; Sat, 24 Jan 2009 09:35:52 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C416228C1E2 for ; Sat, 24 Jan 2009 09:35:51 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.451 X-Spam-Level: X-Spam-Status: No, score=-5.451 tagged_above=-999 required=5 tests=[AWL=0.547, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_21=0.6, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zijlEWWFNuQU for ; Sat, 24 Jan 2009 09:35:49 -0800 (PST) Received: from demumfd001.nsn-inter.net (demumfd001.nsn-inter.net [217.115.75.233]) by core3.amsl.com (Postfix) with ESMTP id 02E0628C17D for ; Sat, 24 Jan 2009 09:35:48 -0800 (PST) Received: from demuprx016.emea.nsn-intra.net ([10.150.129.55]) by demumfd001.nsn-inter.net (8.12.11.20060308/8.12.11) with ESMTP id n0OHZRwW005016 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Sat, 24 Jan 2009 18:35:29 +0100 Received: from demuexc025.nsn-intra.net (demuexc025.nsn-intra.net [10.159.32.12]) by demuprx016.emea.nsn-intra.net (8.12.11.20060308/8.12.11) with ESMTP id n0OHZPdg017125; Sat, 24 Jan 2009 18:35:25 +0100 Received: from DEMUEXC014.nsn-intra.net ([10.150.128.25]) by demuexc025.nsn-intra.net with Microsoft SMTPSVC(6.0.3790.3959); Sat, 24 Jan 2009 18:35:24 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Sat, 24 Jan 2009 18:35:23 +0100 Message-ID: <077E41CFFD002C4CAB7DFA4386A5326435D65C@DEMUEXC014.nsn-intra.net> In-Reply-To: <4979E8D9.8060904@pi.nu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] moving mpls-tp documents - you are supposed torespond Thread-Index: Acl9c01O39pD7NAwS3+pOuV3DGfb/wA0Fbbw References: <4979E8D9.8060904@pi.nu> From: "Sprecher, Nurit (NSN - IL/Hod HaSharon)" To: "ext Loa Andersson" , "MEAD team" X-OriginalArrivalTime: 24 Jan 2009 17:35:24.0725 (UTC) FILETIME=[23A1B650:01C97E4A] Subject: Re: [Mpls-interop] moving mpls-tp documents - you are supposed torespond X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1925865276==" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org This is a multi-part message in MIME format. --===============1925865276== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C97E4A.239B2037" This is a multi-part message in MIME format. ------_=_NextPart_001_01C97E4A.239B2037 Content-Type: text/plain; charset="windows-1255" Content-Transfer-Encoding: quoted-printable Hi, Please see inline. Best regards, Nurit =20 -----Original Message----- From: mpls-interop-bounces@ietf.org = [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Loa Andersson Sent: Friday, January 23, 2009 17:57 To: MEAD team Subject: [Mpls-interop] moving mpls-tp documents - you are supposed = torespond =20 All, =20 I'll to try push the next round of documents to wg last call, or have them accepted as wg documents asap. The discussions in Ipswich gave a of input that should be captured in several documents. =20 This also means that we need to to have a couple of documents become wg documents. Here are the steps we need to take: =20 draft-andersson-mpls-tp-oam-def (accept as a MEAD team doc?) =20 Support draft-beller-mpls-tp-gach-dcn (accept as a MEAD team doc?) Support draft-boutros-mpls-tp-cv (accept as a MEAD team doc?) In the OAM requirement draft we have a requirement for Continuity = and Connectivity Verification. There are references for p2p and p2mp, = on-demand and protective modes......etc. We have specific description of = the behavior of MEPs and MIPs....... We definitely need a tool to address the requirements for CC&V.=20 We can accept the document once it is clear it addresses a requirement = of the OAM requirement draft. We need to see which requirement it = addresses (if the authors believe a dedicated tool is needed for CV only = they need to discuss it first in the context of the OAM requirements. As = I recall it we had confusion and a long discussion on the CC and CV = functions and the decision was to combine these to functions into one = CC&V. The OAM requirement draft as well as the framework and the = analysis documents were updated to align with this conclusion. We can = re-open the discussion but in the right context. Also I am not sure the draft addresses the requirement for CV as defined = in the OAM requirements draft but the one for route determination (route = trace). It is not clear in which modes it works (on demand? Proactive?). = It is not clear how it works for P2MP. I am not sure it is clear how we = differentiate between a message sent to a MEP and a one sent to a MIP. = In the way the document is describes, all LSRs along the path are = considered as MIPs and always pick a message with TTL=3D1, handles it = and forward it to the next hop setting the TTL to 1. In the requirement = draft we can send a message to a specific MIP and we do not request it = to forward the message further.=20 I propose the author addresses these and other comments we sent them and = then we can accept the document.=20 In any case, even when accepted, we need to review first the framework = and the analysis drafts. =20 draft-boutros-mpls-tp-fault (accept as a MEAD team doc?) =20 I did not have the chance to look at the document yet. I'll review = it and come back. =20 draft-boutros-mpls-tp-loopback (comments and review need!) =20 There is no requirement in the OAM requirement draft for a loopback = tool. I propose to discuss it first in the context of the OAM = requirements. If there is a consensus that such a tool is required, we = should update the analysis draft and have such a document. =20 draft-boutros-mpls-tp-performance (accept as a MEAD team doc?) I did not have the chance to look at the document yet. I'll review = it and come back. =20 draft-bryant-mpls-tp-ach-tlv (accept as a MEAD team doc?) =20 Yes in principle. The document needs (1) to be updated to remove = the A bit (although I am not happy to see an empty TLV even if there is = no need for TLV. I would prefer a more elegant way to identify if the = packet includes ACH TLV. For me it looks like having an EThertype of = MPLS and leave the MPLS header empty). (2) The document should be = extended to include a domain-wide unique identifier for a LSP (src = address, dest address and connection/path id which is unique in the = context of src and dest). We need such for IPV4 and one for IPv6 and = maybe other types as well. (3) include a description of some = application/usage of each TLV =20 draft-busi-mpls-tp-oam-framework (update based on Ipswich discussion!) no need to support here. Right? This is already a MEAD document. Or = maybe you ask about moving it to WG document. I would support this. =20 draft-gray-mpls-tp-nm-req (accept as a wg doc!) Support. Once it is accepted as a WG document, I propose to move to = last call. =20 draft-ietf-mpls-tp-framework (prepare for a wg last call, after the tp-requirements are wg last called) =20 I am afraid we need to work more on this document before it goes to = last call. I am concerned from the sections on OAM and survivability = frameworks. I think they need just to refer to the specific documents.=20 I also think that we need to discuss there the fundamental architectural = elements that are needed in order to manage, monitor and protect the = MPLS-TP network in different nested levels. Specifically I refer to the = specific case of TC and to the general case of PST (or maybe now it is = better to call it PCST (Path Concatenated Segment Tunnel). =20 draft-ietf-mpls-tp-oam-requirements (we need to get existing comments written down, we will allow = until Friday Jan 30 to do this, after that we'll prepare the doc for = wg last call) Support. Maybe it couls be useful to extend a little the section of = the required functions in order to have =E7=E3 =EE=F9=EE=F2=E9 = understanding of the requirement. The CC&V is a good example. = Specifically to CV it could be useful to indicate that we check that = there is connectivity between the MEPs and we do not trace the route. = =20 draft-ietf-mpls-tp-requirements (prepare for wg last call) Support =20 draft-martinotti-mpls-tp-interworking (accept as a MEAD team doc?) =20 Support. We still need to work on this document but it is clear = that we need such a document and I think it will be beneficial to work = on this in the MEAD team. =20 =20 draft-sprecher-mpls-tp-oam-analysis (update as soon as the oam-requirements are stable) The document is 100% aligned with the OAM requirements and = framework documents. It addresses comment we got and the outcomes from = Geneva. We will keep updating the document when the needed. =20 draft-sprecher-mpls-tp-survive-fwk (document has expired and should be republished) we will submit an updated version =20 =20 draft-yang-mpls-tp-ring-protection -analysis (accept as a MEAD team doc?) I think the input is very important for the requirement draft and = the survivability document. If we decide to develop a document for ring = protection, the input is very useful. Do we need a specific document for = the evaluation? I do not think so. =20 As a member of the MEAD team you are expected to respond to the "accept as a MEAD team doc"? I have just did. Will provide more answers to the two documents I = did not review. =20 As a a MEAD team member you are expected to supply your comments on draft-ietf-mpls-tp-oam-requirements on Fri Jan 30, the latest. I will =20 As an editor you are supposed to take the action (when the time is right) for the other document. I will A reminder: =20 Becoming a MEAD team document means that there a strong element in that draft that the MEAD needs to coordinate, it won't stop us from splitting or merge documents, just that we will do so in a coordinated way. =20 Becoming wg documents means positive response to three questions. =20 - does this document address a problem that the wg needs to solve - is this document a good enough start to solve this problem - is it within wg charter =20 /Loa =20 =20 --=20 =20 =20 Loa Andersson =20 Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 =20 email: = loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu =20 =20 _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop ------_=_NextPart_001_01C97E4A.239B2037 Content-Type: text/html; charset="windows-1255" Content-Transfer-Encoding: quoted-printable

Hi,

Please see = inline.

Best regards,

Nurit

 

-----Original Message-----
From: mpls-interop-bounces@ietf.org = [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Loa Andersson
Sent: Friday, January 23, 2009 17:57
To: MEAD team
Subject: [Mpls-interop] moving mpls-tp documents - you are supposed = torespond

 

All,

 

I'll to try push the next round of documents = to wg last call,

or have them accepted as wg documents asap. = The discussions in

Ipswich gave a of input that should be captured in several

documents.

 

This also means that we need to to have a = couple of documents

become wg documents. Here are the steps we = need to take:

 

draft-andersson-mpls-tp-oam-def=A0=A0=A0=A0=A0= =A0 (accept as a MEAD team doc?)=A0 =A0=A0=A0

<NS> Support = <NS>

draft-beller-mpls-tp-gach-dcn =A0=A0=A0=A0=A0 = =A0=A0=A0=A0=A0=A0(accept as a MEAD team doc?)

<NS> Support = <NS>

draft-boutros-mpls-tp-cv=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0 (accept as a MEAD team doc?)

<NS> In the OAM requirement = draft we have a requirement for Continuity and Connectivity Verification. There = are references for p2p and p2mp, on-demand and protective modes......etc. We have = specific description of the behavior of MEPs and MIPs.......

We definitely need a tool to = address the requirements for CC&V.

We can accept the document once = it is clear it addresses a requirement of the OAM requirement draft. We need = to see which requirement it addresses (if the authors believe a dedicated tool = is needed for CV only they need to discuss it first in the context of the = OAM requirements. As I recall it we had confusion and a long discussion on the CC and CV = functions and the decision was to combine these to functions into one CC&V. = The OAM requirement draft as well as the framework and the analysis documents were updated = to align with this conclusion. We can re-open the discussion but in the right = context.

Also I am not sure the draft = addresses the requirement for CV as defined in the OAM requirements draft but the one = for route determination (route trace). It is not clear in which modes it = works (on demand? Proactive?).

It is not clear how it works for P2MP. I am = not sure it is clear how we differentiate between a message sent to a MEP and a = one sent to a MIP. In the way the document is describes, all LSRs along the path = are considered as MIPs and always pick a message with TTL=3D1, handles it = and forward it to the next hop setting the TTL to 1. In the requirement draft we can = send a message to a specific MIP and we do not request it to forward the = message further.

I propose the author addresses these and = other comments we sent them and then we can accept the document. =

In any case, even when accepted, we need to = review first the framework and the analysis drafts. = <NS>

=A0 =A0=A0=A0

draft-boutros-mpls-tp-fault=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0 (accept as a MEAD team doc?) =A0=A0=A0=A0

<NS> I did not have the = chance to look at the document yet. I'll review it and come back. = <NS>

 

draft-boutros-mpls-tp-loopback =A0=A0=A0=A0 = =A0=A0=A0=A0=A0=A0(comments and review need!) =A0

<NS> There is no = requirement in the OAM requirement draft for a loopback tool. I propose to discuss it first = in the context of the OAM requirements. If there is a consensus that such a = tool is required, we should update the analysis draft and have such a document. = <NS>

 

draft-boutros-mpls-tp-performance=A0=A0=A0=A0 = (accept as a MEAD team doc?)

<NS> I did not have the chance to look = at the document yet. I'll review it and come back. = <NS>

=A0 =A0=A0=A0

draft-bryant-mpls-tp-ach-tlv=A0=A0=A0=A0=A0=A0= =A0=A0=A0 (accept as a MEAD team doc?) =A0=A0=A0=A0

<NS> Yes in principle. The = document needs (1) to be updated to remove the A bit (although I am not happy to = see an empty TLV even if there is no need for TLV. I would prefer a more = elegant way to identify if the packet includes ACH TLV. For me it looks like having an EThertype of MPLS and leave the MPLS header empty). (2) The document = should be extended to include a domain-wide unique identifier for a LSP (src = address, dest address and connection/path id which is unique in the context of = src and dest). We need such for IPV4 and one for IPv6 and maybe other types as = well. (3) include a description of some application/usage of each TLV = <NS>

 

draft-busi-mpls-tp-oam-framework=A0=A0=A0=A0=A0= (update based on Ipswich

=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 = discussion!)

<NS> no need to support here. Right? = This is already a MEAD document. Or maybe you ask about moving it to WG = document. I would support this. <NS>

=A0=A0=A0=A0=A0

draft-gray-mpls-tp-nm-req=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0 (accept as a wg doc!)

<NS> Support. Once it is = accepted as a WG document, I propose to move to last call. = <NS>

 

draft-ietf-mpls-tp-framework=A0=A0=A0=A0=A0=A0= =A0=A0=A0 (prepare for a wg last call, after

=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 = the tp-requirements are wg last

=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 = called)

 

<NS> I am afraid we need to = work more on this document before it goes to last call. I am concerned from = the sections on OAM and survivability frameworks. I think they need just to = refer to the specific documents.

I also think that we need to = discuss there the fundamental architectural elements that are needed in order to = manage, monitor and protect the MPLS-TP network in different nested levels. Specifically = I refer to the specific case of TC and to the general case of PST (or = maybe now it is better to call it PCST (Path Concatenated Segment Tunnel). = <NS>

 

draft-ietf-mpls-tp-oam-requirements=A0=A0 (we = need to get existing comments

=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 = written down, we will allow until

=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 = Friday Jan 30 to do this, after

=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 = =A0=A0that we'll prepare the doc for wg

=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 = last call)

<NS> Support. Maybe it = couls be useful to extend a little the section of the required functions in order = to have =E7=E3 =EE=F9=EE=F2=E9 understanding of the requirement. The CC&V is a good example. Specifically to CV = it could be useful to indicate that we check that there is connectivity between = the MEPs and we do not trace the route. <NS>

 

draft-ietf-mpls-tp-requirements=A0=A0=A0=A0=A0= =A0 (prepare for wg last call)

<NS> Support = <NS>

 

draft-martinotti-mpls-tp-interworking (accept = as a MEAD team doc?) =A0=A0=A0=A0

<NS> Support. We still need = to work on this document but it is clear that we need such a document and I = think it will be beneficial to work on this in the MEAD team. <NS> =

 

draft-sprecher-mpls-tp-oam-analysis=A0=A0 = (update as soon as the

=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 oam-requirements are stable)

<NS> The document is 100% = aligned with the OAM requirements and framework documents. It addresses comment = we got and the outcomes from Geneva. We will keep updating the document when the needed. = <NS>

 

draft-sprecher-mpls-tp-survive-fwk=A0=A0=A0 = (document has expired and should

=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 be republished)

<NS> we will submit an = updated version <NS>

 

draft-yang-mpls-tp-ring-protection<= /span>

-analysis=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 (accept as a MEAD team doc?)

<NS> I think the input is = very important for the requirement draft and the survivability document. If = we decide to develop a document for ring protection, the input is very = useful. Do we need a specific document for the evaluation? I do not think so. = <NS>

 

As a member of the MEAD team you are expected = to respond to the

"accept as a MEAD team = doc"?

<NS> I have just did. Will = provide more answers to the two documents I did not review. = <NS>

 

As a a MEAD team member you are expected to = supply your comments on

draft-ietf-mpls-tp-oam-requirements on Fri = Jan 30, the latest.

<NS> I will = <NS>

 

As an editor you are supposed to take the = action (when the time is

right) for the other = document.

<NS> I will = <NS>

A reminder:

 

Becoming a MEAD team document means that = there a strong element

in that draft that the MEAD needs to = coordinate, it won't stop

us from splitting or merge documents, just = that we will do so

in a coordinated = way.

 

Becoming wg documents means positive response = to three questions.

 

- does this document address a problem that = the wg needs to

=A0=A0 solve

- is this document a good enough start to = solve this problem

- is it within wg = charter

 

/Loa

 

 

--

 

 

Loa Andersson

 

Sr Strategy and Standards = Manager

Ericsson = ///=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0 phone:=A0 +46 8 632 77 14

 

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------_=_NextPart_001_01C97E4A.239B2037-- --===============1925865276== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop --===============1925865276==-- From mpls-interop-bounces@ietf.org Sun Jan 25 04:56:48 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E15563A682F; Sun, 25 Jan 2009 04:56:48 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4B4DA3A6831 for ; Sun, 25 Jan 2009 04:56:47 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.405 X-Spam-Level: X-Spam-Status: No, score=-1.405 tagged_above=-999 required=5 tests=[AWL=0.127, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1, RCVD_NUMERIC_HELO=2.067] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Mz3woodpaq9F for ; Sun, 25 Jan 2009 04:56:46 -0800 (PST) Received: from smtp3.smtp.bt.com (smtp3.smtp.bt.com [217.32.164.138]) by core3.amsl.com (Postfix) with ESMTP id F0C0A3A682F for ; Sun, 25 Jan 2009 04:56:45 -0800 (PST) Received: from E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.107]) by smtp3.smtp.bt.com with Microsoft SMTPSVC(6.0.3790.1830); Sun, 25 Jan 2009 12:56:27 +0000 Received: from 217.32.164.172 ([217.32.164.172]) by E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.60]) via Exchange Front-End Server mail.bt.com ([193.113.197.26]) with Microsoft Exchange Server HTTP-DAV ; Sun, 25 Jan 2009 12:56:26 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Sun, 25 Jan 2009 12:56:23 +0000 From: Ben Niven-Jenkins To: Loa Andersson , MEAD team Message-ID: Thread-Topic: [Mpls-interop] moving mpls-tp documents - you are supposed to respond Thread-Index: Acl+7FMyadJndS09z0muXhEZw9tQ0Q== In-Reply-To: <4979E8D9.8060904@pi.nu> Mime-version: 1.0 X-OriginalArrivalTime: 25 Jan 2009 12:56:27.0791 (UTC) FILETIME=[560E01F0:01C97EEC] Subject: Re: [Mpls-interop] moving mpls-tp documents - you are supposed to respond X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org My views. Note some of my comments are based on just quickly scanning the documents as I haven't had chance to read them all properly. Ben On 23/01/2009 15:57, "Loa Andersson" wrote: > All, > > I'll to try push the next round of documents to wg last call, > or have them accepted as wg documents asap. The discussions in > Ipswich gave a of input that should be captured in several > documents. > > This also means that we need to to have a couple of documents > become wg documents. Here are the steps we need to take: > > draft-andersson-mpls-tp-oam-def (accept as a MEAD team doc?) Accept. > draft-beller-mpls-tp-gach-dcn (accept as a MEAD team doc?) Accept > draft-boutros-mpls-tp-cv (accept as a MEAD team doc?) Accept (important for MPLS-TP OAM reqs but probably need significant work to encompass necessary requirements like P2MP etc.) > draft-boutros-mpls-tp-fault (accept as a MEAD team doc?) It is not clear to me what the scope of the draft is. It appears to define a protection switching trigger message. It is not clear to me if this is restricted purely to triggering protection switching or also covers a generic FDI/BDI function? Also need to understand its relationship to survivability framework and proposed MPLS-TP protection solutions. So I think it's a bit premature to accept this document just yet. > draft-boutros-mpls-tp-loopback (comments and review need!) I haven't read but appears to provide a useful function, however loopback doesn't seem to be mentioned in the OAM requirements. Need to understand better the problem being solved and how it relates to OAM requirements (which may just mean I need to read the draft as its already covered) General comment of solution drafts, I think it might be useful to somehow reference which subset of requirements a particular solution addresses. Not some huge copy & paste of every one from the requirements drafts, but a pointer to a section in a requirements draft or something. > draft-boutros-mpls-tp-performance (accept as a MEAD team doc?) Accept performance monitoring is a gap in current MPLS OAM capabilities. Should the draft also discuss directional performance measurement? > draft-bryant-mpls-tp-ach-tlv (accept as a MEAD team doc?) Accept > draft-busi-mpls-tp-oam-framework (update based on Ipswich > discussion!) > draft-gray-mpls-tp-nm-req (accept as a wg doc!) Would support. > draft-ietf-mpls-tp-framework (prepare for a wg last call, after > the tp-requirements are wg last > called) Following the Ipswich meeting I expect this to have some significant edits (additional text) so would be good to have round of review before WG last call. > draft-ietf-mpls-tp-oam-requirements (we need to get existing comments > written down, we will allow until > Friday Jan 30 to do this, after > that we'll prepare the doc for wg > last call) > draft-ietf-mpls-tp-requirements (prepare for wg last call) > > draft-martinotti-mpls-tp-interworking (accept as a MEAD team doc?) This document comes under "Day 2" work IMO. In other words I think the workload is big enough already without addressing this in the "Day 1" batch of documents. Furthermore it would benefit from having a set of initial solutions documents before we figure out what if anything is required wrt interworking. > draft-sprecher-mpls-tp-oam-analysis (update as soon as the > oam-requirements are stable) > draft-sprecher-mpls-tp-survive-fwk (document has expired and should > be republished) > > draft-yang-mpls-tp-ring-protection > -analysis (accept as a MEAD team doc?) This also comes under "Day 2" work. While it contains some useful information I think we need to have a clear view of what general protection looks like for MPLS-TP before digging into any ring specific mechanisms. > As a member of the MEAD team you are expected to respond to the > "accept as a MEAD team doc"? > > As a a MEAD team member you are expected to supply your comments on > draft-ietf-mpls-tp-oam-requirements on Fri Jan 30, the latest. > > As an editor you are supposed to take the action (when the time is > right) for the other document. > > A reminder: > > Becoming a MEAD team document means that there a strong element > in that draft that the MEAD needs to coordinate, it won't stop > us from splitting or merge documents, just that we will do so > in a coordinated way. > > Becoming wg documents means positive response to three questions. > > - does this document address a problem that the wg needs to > solve > - is this document a good enough start to solve this problem > - is it within wg charter > > /Loa > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Sun Jan 25 08:01:15 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9A2263A68ED; Sun, 25 Jan 2009 08:01:15 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 892C43A6977 for ; Sun, 25 Jan 2009 08:01:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.283 X-Spam-Level: X-Spam-Status: No, score=-10.283 tagged_above=-999 required=5 tests=[AWL=0.316, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9eui5e15uwrL for ; Sun, 25 Jan 2009 08:01:13 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 2E9CC3A68ED for ; Sun, 25 Jan 2009 08:01:13 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,322,1231113600"; d="scan'208";a="31880293" Received: from ams-dkim-2.cisco.com ([144.254.224.139]) by ams-iport-1.cisco.com with ESMTP; 25 Jan 2009 16:00:50 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0PG0orC009477; Sun, 25 Jan 2009 17:00:50 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0PG0or8002565; Sun, 25 Jan 2009 16:00:50 GMT Received: from Stewarts-Computer.local (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0PG0mt20224; Sun, 25 Jan 2009 16:00:49 GMT Message-ID: <497C8CB0.8010201@cisco.com> Date: Sun, 25 Jan 2009 16:00:48 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: "Drake, John E" References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=1440; t=1232899250; x=1233763250; c=relaxed/simple; s=amsdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=7pbb1FFiXYvXWL8TzGA9pS4m4PD6HLAsiIpyR9ATvj0=; b=pM+VqgAdEd1FM5IxbJ8eajWumUoxR1ULM1Up+FXcLo7VbvDilONYzNoJhF fu+9165m9OeqGNCC1A9KZKmMivouuyBtSAogyt3SpWiG+ZP8uwbHLb57IxkJ HDOwsB/nho; Authentication-Results: ams-dkim-2; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim2001 verified; ); Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Drake, John E wrote: > > > >> -----Original Message----- >> From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >> Sent: Wednesday, December 10, 2008 2:41 PM >> To: mpls-interop@ietf.org >> Subject: [Mpls-interop] MPLS over MPLS-TP >> >> Colleagues, >> >> What's the current view of how to support MPLS over MPLS-TP? >> >> Do we put a PW in the middle (like draft-bryant) or do we just >> use the label stack and have MPLS directly over MPLS-TP? >> > > JD: I always thought this was a terrible idea. John, which one or both? > Since MPLS-TP is a > particular MPLS profile and since we said that the MPLS dataplane > wouldn't be touched, I think we would either add entries to the stack > (MPLS), or place an IP packet after the stack (IP). > PWs run over MPLS and don't often carry IP, at least not directly, so PW after the stack is also allowed. MPLS-TP is a profile of PW over MPLS, so using an intermediate PW of some kind is within scope. The argument for greater isolation than is achieved by simply pushing more labels comes from the service provider community. We therefore need to determine from them whether that are happy with a single contiguous label stack in the MPLS-TP carriers case. If they are, then that is the way to go. If they are not, we need to design an encapsulation that gives them the degree of isolation they are looking for. Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Sun Jan 25 11:15:50 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2FB3B3A6774; Sun, 25 Jan 2009 11:15:50 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E808E3A6774 for ; Sun, 25 Jan 2009 11:15:48 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.56 X-Spam-Level: X-Spam-Status: No, score=-6.56 tagged_above=-999 required=5 tests=[AWL=0.039, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KNI48CWtUWCv for ; Sun, 25 Jan 2009 11:15:48 -0800 (PST) Received: from slb-smtpout-01.boeing.com (slb-smtpout-01.boeing.com [130.76.64.48]) by core3.amsl.com (Postfix) with ESMTP id 0B7873A6988 for ; Sun, 25 Jan 2009 11:15:48 -0800 (PST) Received: from blv-av-01.boeing.com (blv-av-01.boeing.com [130.247.48.231]) by slb-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0PJFJ5c012514 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sun, 25 Jan 2009 11:15:20 -0800 (PST) Received: from blv-av-01.boeing.com (localhost [127.0.0.1]) by blv-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0PJFJDs022057; Sun, 25 Jan 2009 11:15:19 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by blv-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0PJFI7L022054; Sun, 25 Jan 2009 11:15:18 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Sun, 25 Jan 2009 11:15:18 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Sun, 25 Jan 2009 11:15:16 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <497C8CB0.8010201@cisco.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/BhoxktoFrDeTSkCLvlKBa/Y8cgAGeh9w References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com> <497C8CB0.8010201@cisco.com> From: "Drake, John E" To: X-OriginalArrivalTime: 25 Jan 2009 19:15:18.0542 (UTC) FILETIME=[42A35AE0:01C97F21] Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Stewart, I think you're starting at the beginning of a long e-mail thread. I think we ended up with a pair of label stacks (service provider stack, customer stack), applied recursively as needed, with each stack being be manipulated independently. The presence of a customer MPLS packet with its label stack, as opposed to a PWE packet or an IP packet, would be indicated either by a unique value or values in the first nibble of the customer packet (i.e., the first nibble of the top label cannot have any of the currently defined values), or with a reserved bottom most label (payload is MPLS) in the service provider stack. Thanks, John >-----Original Message----- >From: Stewart Bryant [mailto:stbryant@cisco.com] >Sent: Sunday, January 25, 2009 8:01 AM >To: Drake, John E >Cc: Ben Niven-Jenkins; mpls-interop@ietf.org >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Drake, John E wrote: >> >> >> >>> -----Original Message----- >>> From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >>> Sent: Wednesday, December 10, 2008 2:41 PM >>> To: mpls-interop@ietf.org >>> Subject: [Mpls-interop] MPLS over MPLS-TP >>> >>> Colleagues, >>> >>> What's the current view of how to support MPLS over MPLS-TP? >>> >>> Do we put a PW in the middle (like draft-bryant) or do we just use >>> the label stack and have MPLS directly over MPLS-TP? >>> >> >> JD: I always thought this was a terrible idea. >John, which one or both? > >> Since MPLS-TP is a >> particular MPLS profile and since we said that the MPLS dataplane >> wouldn't be touched, I think we would either add entries to >the stack >> (MPLS), or place an IP packet after the stack (IP). >> >PWs run over MPLS and don't often carry IP, at least not >directly, so PW after the stack is also allowed. > >MPLS-TP is a profile of PW over MPLS, so using an intermediate >PW of some kind is within scope. > >The argument for greater isolation than is achieved by simply >pushing more labels comes from the service provider community. >We therefore need to determine from them whether that are >happy with a single contiguous label stack in the MPLS-TP >carriers case. If they are, then that is the way to go. >If they are not, we need to design an encapsulation that gives >them the degree of isolation they are looking for. > >Stewart > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Sun Jan 25 11:36:33 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6B3B93A6918; Sun, 25 Jan 2009 11:36:33 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 882223A6918 for ; Sun, 25 Jan 2009 11:36:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.77 X-Spam-Level: X-Spam-Status: No, score=-5.77 tagged_above=-999 required=5 tests=[AWL=0.829, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7mXQqgg9F0zR for ; Sun, 25 Jan 2009 11:36:31 -0800 (PST) Received: from demumfd001.nsn-inter.net (demumfd001.nsn-inter.net [217.115.75.233]) by core3.amsl.com (Postfix) with ESMTP id 3FEDE3A688E for ; Sun, 25 Jan 2009 11:36:30 -0800 (PST) Received: from demuprx017.emea.nsn-intra.net ([10.150.129.56]) by demumfd001.nsn-inter.net (8.12.11.20060308/8.12.11) with ESMTP id n0PJa2PT006241 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Sun, 25 Jan 2009 20:36:02 +0100 Received: from demuexc024.nsn-intra.net (demuexc024.nsn-intra.net [10.159.32.11]) by demuprx017.emea.nsn-intra.net (8.12.11.20060308/8.12.11) with ESMTP id n0PJa220005867; Sun, 25 Jan 2009 20:36:02 +0100 Received: from DEMUEXC014.nsn-intra.net ([10.150.128.25]) by demuexc024.nsn-intra.net with Microsoft SMTPSVC(6.0.3790.3959); Sun, 25 Jan 2009 20:36:01 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Sun, 25 Jan 2009 20:35:56 +0100 Message-ID: <077E41CFFD002C4CAB7DFA4386A5326435D72D@DEMUEXC014.nsn-intra.net> In-Reply-To: <51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/BhoxktoFrDeTSkCLvlKBa/Y8cgAGeh9wAADMsjA= References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com><497C8CB0.8010201@cisco.com> <51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com> From: "Sprecher, Nurit (NSN - IL/Hod HaSharon)" To: "ext Drake, John E" , X-OriginalArrivalTime: 25 Jan 2009 19:36:01.0735 (UTC) FILETIME=[27A38D70:01C97F24] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi John, As a matter of fact, as I recall we had a long discussion on this issue on the mailing list but with no real conclusion. I am not sure what the real difference between using a reserved label and using a PW label is (except for the value of the label). Why is not it better to use the already existing mechanism (PWE3) to demark between the service provider and the customer information in the frame. We need to address also he question of MPS-TP over MPLS. Best regards, Nurit -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Drake, John E Sent: Sunday, January 25, 2009 21:15 To: stbryant@cisco.com Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP Stewart, I think you're starting at the beginning of a long e-mail thread. I think we ended up with a pair of label stacks (service provider stack, customer stack), applied recursively as needed, with each stack being be manipulated independently. The presence of a customer MPLS packet with its label stack, as opposed to a PWE packet or an IP packet, would be indicated either by a unique value or values in the first nibble of the customer packet (i.e., the first nibble of the top label cannot have any of the currently defined values), or with a reserved bottom most label (payload is MPLS) in the service provider stack. Thanks, John >-----Original Message----- >From: Stewart Bryant [mailto:stbryant@cisco.com] >Sent: Sunday, January 25, 2009 8:01 AM >To: Drake, John E >Cc: Ben Niven-Jenkins; mpls-interop@ietf.org >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Drake, John E wrote: >> >> >> >>> -----Original Message----- >>> From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >>> Sent: Wednesday, December 10, 2008 2:41 PM >>> To: mpls-interop@ietf.org >>> Subject: [Mpls-interop] MPLS over MPLS-TP >>> >>> Colleagues, >>> >>> What's the current view of how to support MPLS over MPLS-TP? >>> >>> Do we put a PW in the middle (like draft-bryant) or do we just use >>> the label stack and have MPLS directly over MPLS-TP? >>> >> >> JD: I always thought this was a terrible idea. >John, which one or both? > >> Since MPLS-TP is a >> particular MPLS profile and since we said that the MPLS dataplane >> wouldn't be touched, I think we would either add entries to >the stack >> (MPLS), or place an IP packet after the stack (IP). >> >PWs run over MPLS and don't often carry IP, at least not >directly, so PW after the stack is also allowed. > >MPLS-TP is a profile of PW over MPLS, so using an intermediate >PW of some kind is within scope. > >The argument for greater isolation than is achieved by simply >pushing more labels comes from the service provider community. >We therefore need to determine from them whether that are >happy with a single contiguous label stack in the MPLS-TP >carriers case. If they are, then that is the way to go. >If they are not, we need to design an encapsulation that gives >them the degree of isolation they are looking for. > >Stewart > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Sun Jan 25 23:06:52 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 01B0E3A6881; Sun, 25 Jan 2009 23:06:52 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 294003A6905 for ; Sun, 25 Jan 2009 23:06:50 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.42 X-Spam-Level: X-Spam-Status: No, score=-1.42 tagged_above=-999 required=5 tests=[AWL=0.112, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1, RCVD_NUMERIC_HELO=2.067] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id t74xvqO8MC5z for ; Sun, 25 Jan 2009 23:06:49 -0800 (PST) Received: from smtp2.smtp.bt.com (smtp2.smtp.bt.com [217.32.164.150]) by core3.amsl.com (Postfix) with ESMTP id 015F73A6881 for ; Sun, 25 Jan 2009 23:06:48 -0800 (PST) Received: from E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.107]) by smtp2.smtp.bt.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 26 Jan 2009 07:06:30 +0000 Received: from 217.32.164.184 ([217.32.164.184]) by E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.60]) via Exchange Front-End Server mail.bt.com ([193.113.197.28]) with Microsoft Exchange Server HTTP-DAV ; Mon, 26 Jan 2009 07:06:29 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Mon, 26 Jan 2009 07:06:27 +0000 From: Ben Niven-Jenkins To: "Drake, John E" , Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/BhoxktoFrDeTSkCLvlKBa/Y8cgAGeh9wABkmFtQ= In-Reply-To: <51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com> Mime-version: 1.0 X-OriginalArrivalTime: 26 Jan 2009 07:06:30.0467 (UTC) FILETIME=[9D166130:01C97F84] Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org How does using a new first nibble Vs a reserved bottom label compare with existing implementation behaviour? Will an existing implementation discard both variants? Ben On 25/01/2009 19:15, "Drake, John E" wrote: > Stewart, > > I think you're starting at the beginning of a long e-mail thread. I > think we ended up with a pair of label stacks (service provider stack, > customer stack), applied recursively as needed, with each stack being be > manipulated independently. > > The presence of a customer MPLS packet with its label stack, as opposed > to a PWE packet or an IP packet, would be indicated either by a unique > value or values in the first nibble of the customer packet (i.e., the > first nibble of the top label cannot have any of the currently defined > values), or with a reserved bottom most label (payload is MPLS) in the > service provider stack. > > Thanks, > > John > >> -----Original Message----- >> From: Stewart Bryant [mailto:stbryant@cisco.com] >> Sent: Sunday, January 25, 2009 8:01 AM >> To: Drake, John E >> Cc: Ben Niven-Jenkins; mpls-interop@ietf.org >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> Drake, John E wrote: >>> >>> >>> >>>> -----Original Message----- >>>> From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >>>> Sent: Wednesday, December 10, 2008 2:41 PM >>>> To: mpls-interop@ietf.org >>>> Subject: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Colleagues, >>>> >>>> What's the current view of how to support MPLS over MPLS-TP? >>>> >>>> Do we put a PW in the middle (like draft-bryant) or do we just use >>>> the label stack and have MPLS directly over MPLS-TP? >>>> >>> >>> JD: I always thought this was a terrible idea. >> John, which one or both? >> >>> Since MPLS-TP is a >>> particular MPLS profile and since we said that the MPLS dataplane >>> wouldn't be touched, I think we would either add entries to >> the stack >>> (MPLS), or place an IP packet after the stack (IP). >>> >> PWs run over MPLS and don't often carry IP, at least not >> directly, so PW after the stack is also allowed. >> >> MPLS-TP is a profile of PW over MPLS, so using an intermediate >> PW of some kind is within scope. >> >> The argument for greater isolation than is achieved by simply >> pushing more labels comes from the service provider community. >> We therefore need to determine from them whether that are >> happy with a single contiguous label stack in the MPLS-TP >> carriers case. If they are, then that is the way to go. >> If they are not, we need to design an encapsulation that gives >> them the degree of isolation they are looking for. >> >> Stewart >> >> _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 05:43:10 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 47ECE28C202; Mon, 26 Jan 2009 05:43:10 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6CED028C202 for ; Mon, 26 Jan 2009 05:43:09 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.387 X-Spam-Level: X-Spam-Status: No, score=-2.387 tagged_above=-999 required=5 tests=[AWL=-0.138, BAYES_00=-2.599, HELO_EQ_SE=0.35] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HU0ClNLKSpkE for ; Mon, 26 Jan 2009 05:43:09 -0800 (PST) Received: from ns.elverljung.se (ns.elverljung.se [194.68.48.116]) by core3.amsl.com (Postfix) with ESMTP id 2C83328C1FB for ; Mon, 26 Jan 2009 05:43:09 -0800 (PST) Received: from [192.36.158.123] (wdhcp-158-123.verkstad.net [192.36.158.123]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: loa) by ns.elverljung.se (Postfix) with ESMTPSA id AB88B2D812C for ; Mon, 26 Jan 2009 14:42:50 +0100 (CET) Message-ID: <497DBDD9.9010905@pi.nu> Date: Mon, 26 Jan 2009 14:42:49 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: MEAD team Subject: [Mpls-interop] the mpls-tp mailing list is the consensus list for mpls-tp isseus X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org All, we have agreed with our ADs that the mpl-tp@ietf.org shall be used as the consensus list for mpls-tp related drafts and issues. We will still send generic announcements lie this one or working group last cal to the relevant working group mailing lists, but the discussions should be taken to the mpls-tp list. (Cross-) working group consensus will be decided based on the discussion on the mpls-tp list. /Loa -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 06:31:12 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 58ACE3A6874; Mon, 26 Jan 2009 06:31:12 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4E5D93A6874 for ; Mon, 26 Jan 2009 06:31:11 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.561 X-Spam-Level: X-Spam-Status: No, score=-6.561 tagged_above=-999 required=5 tests=[AWL=0.038, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 15AdzRUcoamp for ; Mon, 26 Jan 2009 06:31:10 -0800 (PST) Received: from stl-smtpout-01.boeing.com (stl-smtpout-01.boeing.com [130.76.96.56]) by core3.amsl.com (Postfix) with ESMTP id 4B8393A69FD for ; Mon, 26 Jan 2009 06:31:10 -0800 (PST) Received: from stl-av-01.boeing.com (stl-av-01.boeing.com [192.76.190.6]) by stl-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0QEUdgu019816 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 26 Jan 2009 08:30:40 -0600 (CST) Received: from stl-av-01.boeing.com (localhost [127.0.0.1]) by stl-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0QEUdGs012592; Mon, 26 Jan 2009 08:30:39 -0600 (CST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by stl-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0QEUabE012484; Mon, 26 Jan 2009 08:30:39 -0600 (CST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 06:30:37 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 06:30:35 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016703B3@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/BhoxktoFrDeTSkCLvlKBa/Y8cgAGeh9wABkmFtQADhmLsA== References: <51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com> From: "Drake, John E" To: "Ben Niven-Jenkins" , X-OriginalArrivalTime: 26 Jan 2009 14:30:37.0365 (UTC) FILETIME=[A7E05650:01C97FC2] Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Ben, I think either is fine. An LSP within a SP MPLS LSP would be established using either control plane or management plane protocols, and it would be policy to not use any of the defined values in the first nibble of that LSP's label. (Another alternative would be to define a first nibble value that means 'MPLS LSP'.) Intermediate nodes will only perform ECMP if the packet is IPv4 or IPv6. A new reserved label would only be used and understood by the SP MPLS LSP endpoints and clients. The language in RFC 3032 indicates that the bottom most label should provide an indication of the payload type and there are already implicit null labels defined for IPv4 and IPv6. What this is doing is effectively creating separate LSPs for each payload type. The only points of discussion are whether the ingress SP MPLS LSP endpoint can set the label without help from the ingress client, which I think is required, and whether a payload type indication is passed to the egress client, which I think is required because if this isn't done the reserved label is pretty useless. I.e., clients care about the payload type but the SP MPLS LSP endpoints don't. Thanks, John >-----Original Message----- >From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >Sent: Sunday, January 25, 2009 11:06 PM >To: Drake, John E; stbryant@cisco.com >Cc: mpls-interop@ietf.org >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >How does using a new first nibble Vs a reserved bottom label >compare with existing implementation behaviour? > >Will an existing implementation discard both variants? > >Ben > > > >On 25/01/2009 19:15, "Drake, John E" wrote: > >> Stewart, >> >> I think you're starting at the beginning of a long e-mail thread. I >> think we ended up with a pair of label stacks (service >provider stack, >> customer stack), applied recursively as needed, with each >stack being >> be manipulated independently. >> >> The presence of a customer MPLS packet with its label stack, as >> opposed to a PWE packet or an IP packet, would be indicated >either by >> a unique value or values in the first nibble of the customer packet >> (i.e., the first nibble of the top label cannot have any of the >> currently defined values), or with a reserved bottom most label >> (payload is MPLS) in the service provider stack. >> >> Thanks, >> >> John >> >>> -----Original Message----- >>> From: Stewart Bryant [mailto:stbryant@cisco.com] >>> Sent: Sunday, January 25, 2009 8:01 AM >>> To: Drake, John E >>> Cc: Ben Niven-Jenkins; mpls-interop@ietf.org >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> Drake, John E wrote: >>>> >>>> >>>> >>>>> -----Original Message----- >>>>> From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >>>>> Sent: Wednesday, December 10, 2008 2:41 PM >>>>> To: mpls-interop@ietf.org >>>>> Subject: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> Colleagues, >>>>> >>>>> What's the current view of how to support MPLS over MPLS-TP? >>>>> >>>>> Do we put a PW in the middle (like draft-bryant) or do we >just use >>>>> the label stack and have MPLS directly over MPLS-TP? >>>>> >>>> >>>> JD: I always thought this was a terrible idea. >>> John, which one or both? >>> >>>> Since MPLS-TP is a >>>> particular MPLS profile and since we said that the MPLS dataplane >>>> wouldn't be touched, I think we would either add entries to >>> the stack >>>> (MPLS), or place an IP packet after the stack (IP). >>>> >>> PWs run over MPLS and don't often carry IP, at least not >directly, so >>> PW after the stack is also allowed. >>> >>> MPLS-TP is a profile of PW over MPLS, so using an >intermediate PW of >>> some kind is within scope. >>> >>> The argument for greater isolation than is achieved by >simply pushing >>> more labels comes from the service provider community. >>> We therefore need to determine from them whether that are >happy with >>> a single contiguous label stack in the MPLS-TP carriers >case. If they >>> are, then that is the way to go. >>> If they are not, we need to design an encapsulation that gives them >>> the degree of isolation they are looking for. >>> >>> Stewart >>> >>> > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 06:42:36 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2D90E3A6909; Mon, 26 Jan 2009 06:42:36 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A3FB93A6BAB for ; Mon, 26 Jan 2009 06:42:35 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.473 X-Spam-Level: X-Spam-Status: No, score=-3.473 tagged_above=-999 required=5 tests=[AWL=0.126, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cHu2YMElsqnW for ; Mon, 26 Jan 2009 06:42:34 -0800 (PST) Received: from smtp2.smtp.bt.com (smtp2.smtp.bt.com [217.32.164.150]) by core3.amsl.com (Postfix) with ESMTP id 3AAA03A6909 for ; Mon, 26 Jan 2009 06:42:33 -0800 (PST) Received: from E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.107]) by smtp2.smtp.bt.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 26 Jan 2009 14:42:15 +0000 Received: from 10.215.40.109 ([10.215.40.109]) by E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.60]) via Exchange Front-End Server mail.bt.com ([193.113.197.32]) with Microsoft Exchange Server HTTP-DAV ; Mon, 26 Jan 2009 14:42:15 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Mon, 26 Jan 2009 14:42:05 +0000 From: Ben Niven-Jenkins To: "Drake, John E" , Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/BhoxktoFrDeTSkCLvlKBa/Y8cgAGeh9wABkmFtQADhmLsAAB0CO2 In-Reply-To: <51661468CBD1354294533DA79E85955A016703B3@XCH-SW-5V2.sw.nos.boeing.com> Mime-version: 1.0 X-OriginalArrivalTime: 26 Jan 2009 14:42:15.0933 (UTC) FILETIME=[48415AD0:01C97FC4] Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org John, I get all that. What I was thinking was more, if I have an existing MPLS router somewhere that doesn't have MPLS/MPLS-TP over MPLS/MPLS-TP implemented (or a MPLS/MPLS-TP router that doesn't have MPLS-TP enabled), what will it do with one of these packets? If it doesn't understand it it should drop it. For a reserved label I assume the default is to drop packets with labels that are not understood. I do not know if that is the same for the 1st nibble. Ben On 26/01/2009 14:30, "Drake, John E" wrote: > Ben, > > I think either is fine. > > An LSP within a SP MPLS LSP would be established using either control > plane or management plane protocols, and it would be policy to not use > any of the defined values in the first nibble of that LSP's label. > (Another alternative would be to define a first nibble value that means > 'MPLS LSP'.) Intermediate nodes will only perform ECMP if the packet is > IPv4 or IPv6. > > A new reserved label would only be used and understood by the SP MPLS > LSP endpoints and clients. The language in RFC 3032 indicates that the > bottom most label should provide an indication of the payload type and > there are already implicit null labels defined for IPv4 and IPv6. What > this is doing is effectively creating separate LSPs for each payload > type. > > The only points of discussion are whether the ingress SP MPLS LSP > endpoint can set the label without help from the ingress client, which I > think is required, and whether a payload type indication is passed to > the egress client, which I think is required because if this isn't done > the reserved label is pretty useless. I.e., clients care about the > payload type but the SP MPLS LSP endpoints don't. > > Thanks, > > John > >> -----Original Message----- >> From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >> Sent: Sunday, January 25, 2009 11:06 PM >> To: Drake, John E; stbryant@cisco.com >> Cc: mpls-interop@ietf.org >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> How does using a new first nibble Vs a reserved bottom label >> compare with existing implementation behaviour? >> >> Will an existing implementation discard both variants? >> >> Ben >> >> >> >> On 25/01/2009 19:15, "Drake, John E" wrote: >> >>> Stewart, >>> >>> I think you're starting at the beginning of a long e-mail thread. I >>> think we ended up with a pair of label stacks (service >> provider stack, >>> customer stack), applied recursively as needed, with each >> stack being >>> be manipulated independently. >>> >>> The presence of a customer MPLS packet with its label stack, as >>> opposed to a PWE packet or an IP packet, would be indicated >> either by >>> a unique value or values in the first nibble of the customer packet >>> (i.e., the first nibble of the top label cannot have any of the >>> currently defined values), or with a reserved bottom most label >>> (payload is MPLS) in the service provider stack. >>> >>> Thanks, >>> >>> John >>> >>>> -----Original Message----- >>>> From: Stewart Bryant [mailto:stbryant@cisco.com] >>>> Sent: Sunday, January 25, 2009 8:01 AM >>>> To: Drake, John E >>>> Cc: Ben Niven-Jenkins; mpls-interop@ietf.org >>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Drake, John E wrote: >>>>> >>>>> >>>>> >>>>>> -----Original Message----- >>>>>> From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >>>>>> Sent: Wednesday, December 10, 2008 2:41 PM >>>>>> To: mpls-interop@ietf.org >>>>>> Subject: [Mpls-interop] MPLS over MPLS-TP >>>>>> >>>>>> Colleagues, >>>>>> >>>>>> What's the current view of how to support MPLS over MPLS-TP? >>>>>> >>>>>> Do we put a PW in the middle (like draft-bryant) or do we >> just use >>>>>> the label stack and have MPLS directly over MPLS-TP? >>>>>> >>>>> >>>>> JD: I always thought this was a terrible idea. >>>> John, which one or both? >>>> >>>>> Since MPLS-TP is a >>>>> particular MPLS profile and since we said that the MPLS dataplane >>>>> wouldn't be touched, I think we would either add entries to >>>> the stack >>>>> (MPLS), or place an IP packet after the stack (IP). >>>>> >>>> PWs run over MPLS and don't often carry IP, at least not >> directly, so >>>> PW after the stack is also allowed. >>>> >>>> MPLS-TP is a profile of PW over MPLS, so using an >> intermediate PW of >>>> some kind is within scope. >>>> >>>> The argument for greater isolation than is achieved by >> simply pushing >>>> more labels comes from the service provider community. >>>> We therefore need to determine from them whether that are >> happy with >>>> a single contiguous label stack in the MPLS-TP carriers >> case. If they >>>> are, then that is the way to go. >>>> If they are not, we need to design an encapsulation that gives them >>>> the degree of isolation they are looking for. >>>> >>>> Stewart >>>> >>>> >> >> _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 06:42:45 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3C4F93A6909; Mon, 26 Jan 2009 06:42:45 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 34F603A6BAB for ; Mon, 26 Jan 2009 06:42:44 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.561 X-Spam-Level: X-Spam-Status: No, score=-6.561 tagged_above=-999 required=5 tests=[AWL=0.038, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rvpEJZQvVsnX for ; Mon, 26 Jan 2009 06:42:43 -0800 (PST) Received: from blv-smtpout-01.boeing.com (blv-smtpout-01.boeing.com [130.76.32.69]) by core3.amsl.com (Postfix) with ESMTP id 4803F3A6909 for ; Mon, 26 Jan 2009 06:42:43 -0800 (PST) Received: from slb-av-01.boeing.com (slb-av-01.boeing.com [129.172.13.4]) by blv-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0QEgBLO029048 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 26 Jan 2009 06:42:12 -0800 (PST) Received: from slb-av-01.boeing.com (localhost [127.0.0.1]) by slb-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0QEgB5V011448; Mon, 26 Jan 2009 06:42:11 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by slb-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0QEgBfs011445; Mon, 26 Jan 2009 06:42:11 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 06:42:11 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 06:42:09 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016703BE@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <077E41CFFD002C4CAB7DFA4386A5326435D72D@DEMUEXC014.nsn-intra.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/BhoxktoFrDeTSkCLvlKBa/Y8cgAGeh9wAADMsjAAKBlCcA== References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com><497C8CB0.8010201@cisco.com> <51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com> <077E41CFFD002C4CAB7DFA4386A5326435D72D@DEMUEXC014.nsn-intra.net> From: "Drake, John E" To: "Sprecher, Nurit (NSN - IL/Hod HaSharon)" , X-OriginalArrivalTime: 26 Jan 2009 14:42:11.0146 (UTC) FILETIME=[4566EAA0:01C97FC4] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Comments inline. >-----Original Message----- >From: Sprecher, Nurit (NSN - IL/Hod HaSharon) >[mailto:nurit.sprecher@nsn.com] >Sent: Sunday, January 25, 2009 11:36 AM >To: Drake, John E; stbryant@cisco.com >Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > >Hi John, >As a matter of fact, as I recall we had a long discussion on >this issue on the mailing list but with no real conclusion. >I am not sure what the real difference between using a >reserved label and using a PW label is (except for the value >of the label). Why is not it better to use the already >existing mechanism (PWE3) to demark between the service >provider and the customer information in the frame. >We need to address also he question of MPS-TP over MPLS. >Best regards, >Nurit JD: *Requiring* a PW header in order to transport an MPLS payload over an MPLS LSP strikes me as an IQ test that one has failed. This is an e-mail I sent to Andy Malis on Dec 11th, to which he expressed agreement: Andy, Great. So, it is up to the client endpoints of the MPLS TP LSP to understand the payload contents and we could have as payloads, for example, MPLS packets with their own label stack, IP packets, or ethernet PW packets which in turn contain, for example, MPLS packets or IP packets. Thanks, John > > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Drake, John E >Sent: Sunday, January 25, 2009 21:15 >To: stbryant@cisco.com >Cc: mpls-interop@ietf.org >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Stewart, > >I think you're starting at the beginning of a long e-mail >thread. I think we ended up with a pair of label stacks >(service provider stack, customer stack), applied recursively >as needed, with each stack being be manipulated independently. > >The presence of a customer MPLS packet with its label stack, >as opposed to a PWE packet or an IP packet, would be indicated >either by a unique value or values in the first nibble of the >customer packet (i.e., the first nibble of the top label >cannot have any of the currently defined values), or with a >reserved bottom most label (payload is MPLS) in the service >provider stack. > >Thanks, > >John > >>-----Original Message----- >>From: Stewart Bryant [mailto:stbryant@cisco.com] >>Sent: Sunday, January 25, 2009 8:01 AM >>To: Drake, John E >>Cc: Ben Niven-Jenkins; mpls-interop@ietf.org >>Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >>Drake, John E wrote: >>> >>> >>> >>>> -----Original Message----- >>>> From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >>>> Sent: Wednesday, December 10, 2008 2:41 PM >>>> To: mpls-interop@ietf.org >>>> Subject: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Colleagues, >>>> >>>> What's the current view of how to support MPLS over MPLS-TP? >>>> >>>> Do we put a PW in the middle (like draft-bryant) or do we just use >>>> the label stack and have MPLS directly over MPLS-TP? >>>> >>> >>> JD: I always thought this was a terrible idea. >>John, which one or both? >> >>> Since MPLS-TP is a >>> particular MPLS profile and since we said that the MPLS dataplane >>> wouldn't be touched, I think we would either add entries to >>the stack >>> (MPLS), or place an IP packet after the stack (IP). >>> >>PWs run over MPLS and don't often carry IP, at least not directly, so >>PW after the stack is also allowed. >> >>MPLS-TP is a profile of PW over MPLS, so using an intermediate PW of >>some kind is within scope. >> >>The argument for greater isolation than is achieved by simply pushing >>more labels comes from the service provider community. >>We therefore need to determine from them whether that are >happy with a >>single contiguous label stack in the MPLS-TP carriers case. If they >>are, then that is the way to go. >>If they are not, we need to design an encapsulation that >gives them the >>degree of isolation they are looking for. >> >>Stewart >> >> >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 07:03:54 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 05B413A6A07; Mon, 26 Jan 2009 07:03:54 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 456D628C171 for ; Mon, 26 Jan 2009 07:03:53 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.562 X-Spam-Level: X-Spam-Status: No, score=-6.562 tagged_above=-999 required=5 tests=[AWL=0.037, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rPVvxGyG0Gdo for ; Mon, 26 Jan 2009 07:03:48 -0800 (PST) Received: from blv-smtpout-01.boeing.com (blv-smtpout-01.boeing.com [130.76.32.69]) by core3.amsl.com (Postfix) with ESMTP id 5D5133A6A07 for ; Mon, 26 Jan 2009 07:03:48 -0800 (PST) Received: from stl-av-01.boeing.com (stl-av-01.boeing.com [192.76.190.6]) by blv-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0QF31B0011094 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 26 Jan 2009 07:03:02 -0800 (PST) Received: from stl-av-01.boeing.com (localhost [127.0.0.1]) by stl-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0QF31Td008815; Mon, 26 Jan 2009 09:03:01 -0600 (CST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by stl-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0QF2iWp008366; Mon, 26 Jan 2009 09:03:01 -0600 (CST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 07:02:56 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 07:02:54 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016703CE@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/BhoxktoFrDeTSkCLvlKBa/Y8cgAGeh9wABkmFtQADhmLsAAB0CO2AACWuZA= References: <51661468CBD1354294533DA79E85955A016703B3@XCH-SW-5V2.sw.nos.boeing.com> From: "Drake, John E" To: "Ben Niven-Jenkins" , X-OriginalArrivalTime: 26 Jan 2009 15:02:56.0507 (UTC) FILETIME=[2BB1ECB0:01C97FC7] Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Ben, Are you talking about intermediate or endpoint routers? I was assuming that the endpoint routers would need to be upgraded, and that control plane or management plane protocols would ensure that they were. If an egress router were not, presumably it would would drop the packets. As I tried to indicate in my e-mail, an intermediate router would be oblivious to either scheme. Thanks, John >-----Original Message----- >From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >Sent: Monday, January 26, 2009 6:42 AM >To: Drake, John E; stbryant@cisco.com >Cc: mpls-interop@ietf.org >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >John, > >I get all that. What I was thinking was more, if I have an >existing MPLS router somewhere that doesn't have MPLS/MPLS-TP >over MPLS/MPLS-TP implemented (or a MPLS/MPLS-TP router that >doesn't have MPLS-TP enabled), what will it do with one of >these packets? > >If it doesn't understand it it should drop it. For a reserved >label I assume the default is to drop packets with labels that >are not understood. >I do not know if that is the same for the 1st nibble. > >Ben > > > >On 26/01/2009 14:30, "Drake, John E" wrote: > >> Ben, >> >> I think either is fine. >> >> An LSP within a SP MPLS LSP would be established using >either control >> plane or management plane protocols, and it would be policy >to not use >> any of the defined values in the first nibble of that LSP's label. >> (Another alternative would be to define a first nibble value that >> means 'MPLS LSP'.) Intermediate nodes will only perform ECMP if the >> packet is >> IPv4 or IPv6. >> >> A new reserved label would only be used and understood by >the SP MPLS >> LSP endpoints and clients. The language in RFC 3032 indicates that >> the bottom most label should provide an indication of the >payload type >> and there are already implicit null labels defined for IPv4 >and IPv6. >> What this is doing is effectively creating separate LSPs for each >> payload type. >> >> The only points of discussion are whether the ingress SP MPLS LSP >> endpoint can set the label without help from the ingress >client, which >> I think is required, and whether a payload type indication is passed >> to the egress client, which I think is required because if >this isn't >> done the reserved label is pretty useless. I.e., clients care about >> the payload type but the SP MPLS LSP endpoints don't. >> >> Thanks, >> >> John >> >>> -----Original Message----- >>> From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >>> Sent: Sunday, January 25, 2009 11:06 PM >>> To: Drake, John E; stbryant@cisco.com >>> Cc: mpls-interop@ietf.org >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> How does using a new first nibble Vs a reserved bottom >label compare >>> with existing implementation behaviour? >>> >>> Will an existing implementation discard both variants? >>> >>> Ben >>> >>> >>> >>> On 25/01/2009 19:15, "Drake, John E" > wrote: >>> >>>> Stewart, >>>> >>>> I think you're starting at the beginning of a long e-mail >thread. I >>>> think we ended up with a pair of label stacks (service >>> provider stack, >>>> customer stack), applied recursively as needed, with each >>> stack being >>>> be manipulated independently. >>>> >>>> The presence of a customer MPLS packet with its label stack, as >>>> opposed to a PWE packet or an IP packet, would be indicated >>> either by >>>> a unique value or values in the first nibble of the >customer packet >>>> (i.e., the first nibble of the top label cannot have any of the >>>> currently defined values), or with a reserved bottom most label >>>> (payload is MPLS) in the service provider stack. >>>> >>>> Thanks, >>>> >>>> John >>>> >>>>> -----Original Message----- >>>>> From: Stewart Bryant [mailto:stbryant@cisco.com] >>>>> Sent: Sunday, January 25, 2009 8:01 AM >>>>> To: Drake, John E >>>>> Cc: Ben Niven-Jenkins; mpls-interop@ietf.org >>>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> Drake, John E wrote: >>>>>> >>>>>> >>>>>> >>>>>>> -----Original Message----- >>>>>>> From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] >>>>>>> Sent: Wednesday, December 10, 2008 2:41 PM >>>>>>> To: mpls-interop@ietf.org >>>>>>> Subject: [Mpls-interop] MPLS over MPLS-TP >>>>>>> >>>>>>> Colleagues, >>>>>>> >>>>>>> What's the current view of how to support MPLS over MPLS-TP? >>>>>>> >>>>>>> Do we put a PW in the middle (like draft-bryant) or do we >>> just use >>>>>>> the label stack and have MPLS directly over MPLS-TP? >>>>>>> >>>>>> >>>>>> JD: I always thought this was a terrible idea. >>>>> John, which one or both? >>>>> >>>>>> Since MPLS-TP is a >>>>>> particular MPLS profile and since we said that the MPLS >dataplane >>>>>> wouldn't be touched, I think we would either add entries to >>>>> the stack >>>>>> (MPLS), or place an IP packet after the stack (IP). >>>>>> >>>>> PWs run over MPLS and don't often carry IP, at least not >>> directly, so >>>>> PW after the stack is also allowed. >>>>> >>>>> MPLS-TP is a profile of PW over MPLS, so using an >>> intermediate PW of >>>>> some kind is within scope. >>>>> >>>>> The argument for greater isolation than is achieved by >>> simply pushing >>>>> more labels comes from the service provider community. >>>>> We therefore need to determine from them whether that are >>> happy with >>>>> a single contiguous label stack in the MPLS-TP carriers >>> case. If they >>>>> are, then that is the way to go. >>>>> If they are not, we need to design an encapsulation that >gives them >>>>> the degree of isolation they are looking for. >>>>> >>>>> Stewart >>>>> >>>>> >>> >>> > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 07:21:52 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 171FB3A67EC; Mon, 26 Jan 2009 07:21:52 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 57F7328C0DB for ; Mon, 26 Jan 2009 07:21:51 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.249 X-Spam-Level: X-Spam-Status: No, score=-6.249 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HELO_EQ_FR=0.35, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id j8DI6KaPAxmP for ; Mon, 26 Jan 2009 07:21:50 -0800 (PST) Received: from smail6.alcatel.fr (colt-na5.alcatel.fr [62.23.212.5]) by core3.amsl.com (Postfix) with ESMTP id 1EF3E3A67EC for ; Mon, 26 Jan 2009 07:21:49 -0800 (PST) Received: from FRMRSSXCHHUB04.dc-m.alcatel-lucent.com (FRMRSSXCHHUB04.dc-m.alcatel-lucent.com [135.120.45.64]) by smail6.alcatel.fr (8.13.8/8.13.8/ICT) with ESMTP id n0QFLTR1015058 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NOT); Mon, 26 Jan 2009 16:21:29 +0100 Received: from FRMRSSXCHMBSB3.dc-m.alcatel-lucent.com ([135.120.45.41]) by FRMRSSXCHHUB04.dc-m.alcatel-lucent.com ([135.120.45.64]) with mapi; Mon, 26 Jan 2009 16:21:29 +0100 From: "LEVRAU, LIEVEN (LIEVEN)" To: Loa Andersson , MEAD team Date: Mon, 26 Jan 2009 16:21:27 +0100 Thread-Topic: [Mpls-interop] moving mpls-tp documents - you are supposed to respond Thread-Index: Acl9c1lOyuZgLuA6RcesaQKGGFFaHQBqPXHA Message-ID: <4D3F2B2A3FE4B54DBF449418B192A1FE74A35466@FRMRSSXCHMBSB3.dc-m.alcatel-lucent.com> References: <4979E8D9.8060904@pi.nu> In-Reply-To: <4979E8D9.8060904@pi.nu> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.57 on 155.132.188.84 Subject: Re: [Mpls-interop] moving mpls-tp documents - you are supposed to respond X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Loa et all. draft-andersson-mpls-tp-oam-def (accept as a MEAD team doc?) [ll>] accept as a MEAD team doc draft-beller-mpls-tp-gach-dcn (accept as a MEAD team doc?) [ll>] accept as a MEAD team doc draft-boutros-mpls-tp-cv (accept as a MEAD team doc?) [ll>] accept as a MEAD team doc draft-boutros-mpls-tp-fault (accept as a MEAD team doc?) [ll>] accept as a MEAD team doc draft-boutros-mpls-tp-loopback (comments and review need!) [ll>] accept as a MEAD team doc draft-boutros-mpls-tp-performance (accept as a MEAD team doc?) [ll>] accept as a MEAD team doc draft-bryant-mpls-tp-ach-tlv (accept as a MEAD team doc?) [ll>] accept as a MEAD team doc draft-busi-mpls-tp-oam-framework (update based on Ipswich discussion!) [ll>] accept as a MEAD team doc draft-gray-mpls-tp-nm-req (accept as a wg doc!) draft-ietf-mpls-tp-framework (prepare for a wg last call, after the tp-requirements are wg last called) [ll>] accept as a MEAD team doc draft-ietf-mpls-tp-oam-requirements (we need to get existing comments written down, we will allow until Friday Jan 30 to do this, after that we'll prepare the doc for wg last call) [ll>] accept as a MEAD team doc draft-ietf-mpls-tp-requirements (prepare for wg last call) draft-martinotti-mpls-tp-interworking (accept as a MEAD team doc?) [ll>] accept as a MEAD team doc draft-sprecher-mpls-tp-oam-analysis (update as soon as the oam-requirements are stable) draft-sprecher-mpls-tp-survive-fwk (document has expired and should be republished) [ll>] accept as a MEAD team doc draft-yang-mpls-tp-ring-protection -analysis (accept as a MEAD team doc?) [ll>] accept as a MEAD team doc As a member of the MEAD team you are expected to respond to the "accept as a MEAD team doc"? As a a MEAD team member you are expected to supply your comments on draft-ietf-mpls-tp-oam-requirements on Fri Jan 30, the latest. As an editor you are supposed to take the action (when the time is right) for the other document. A reminder: Becoming a MEAD team document means that there a strong element in that draft that the MEAD needs to coordinate, it won't stop us from splitting or merge documents, just that we will do so in a coordinated way. Becoming wg documents means positive response to three questions. - does this document address a problem that the wg needs to solve - is this document a good enough start to solve this problem - is it within wg charter /Loa -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 07:23:46 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 259CD3A697B; Mon, 26 Jan 2009 07:23:46 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1EC8628C0DB for ; Mon, 26 Jan 2009 07:23:45 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.355 X-Spam-Level: X-Spam-Status: No, score=-2.355 tagged_above=-999 required=5 tests=[AWL=-0.106, BAYES_00=-2.599, HELO_EQ_SE=0.35] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7jEIWFrqlrzJ for ; Mon, 26 Jan 2009 07:23:44 -0800 (PST) Received: from ns.elverljung.se (ns.elverljung.se [194.68.48.116]) by core3.amsl.com (Postfix) with ESMTP id 39BA93A697B for ; Mon, 26 Jan 2009 07:23:44 -0800 (PST) Received: from [192.36.158.123] (wdhcp-158-123.verkstad.net [192.36.158.123]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: loa) by ns.elverljung.se (Postfix) with ESMTPSA id 74A922D812C; Mon, 26 Jan 2009 16:23:25 +0100 (CET) Message-ID: <497DD56A.2010705@pi.nu> Date: Mon, 26 Jan 2009 16:23:22 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: Adrian Farrel References: <4979E8D9.8060904@pi.nu> <25230BFC2253423C8716912AF248F63E@your029b8cecfe> In-Reply-To: <25230BFC2253423C8716912AF248F63E@your029b8cecfe> Cc: MEAD team Subject: Re: [Mpls-interop] moving mpls-tp documents - you are supposed torespond X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Adrian, Adrian Farrel wrote: > Hi Loa, > >> draft-ietf-mpls-tp-oam-requirements (we need to get existing comments >> written down, we will allow until >> Friday Jan 30 to do this, after >> that we'll prepare the doc for wg >> last call) > > Sorry, is this a last call for comments that need to be in before a last > call for comments can be issued? no - this is not "last call comments" I just want to reach a point where we can produce a document that is as stable as possible. Today we have lots of requirements floating around, and some of them (as you said in your consensus (lack of discussion). The date is just here to help the editors get as much as possible in. /Loa > > > Adrian -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 07:49:34 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 656D63A67EC; Mon, 26 Jan 2009 07:49:34 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 754083A67EC for ; Mon, 26 Jan 2009 07:49:33 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.369 X-Spam-Level: X-Spam-Status: No, score=-2.369 tagged_above=-999 required=5 tests=[AWL=0.230, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Yl3AZShWd9xN for ; Mon, 26 Jan 2009 07:49:32 -0800 (PST) Received: from irvmail2.verizon.com (irvmail2.verizon.com [192.76.80.130]) by core3.amsl.com (Postfix) with ESMTP id 7F54E3A6A45 for ; Mon, 26 Jan 2009 07:49:32 -0800 (PST) Received: from smtpftw3.verizon.com (smtpftw3.verizon.com [138.83.140.92]) by irvmail2.verizon.com (8.13.3/8.13.3) with ESMTP id n0QFnD6x026416; Mon, 26 Jan 2009 09:49:14 -0600 (CST) Received: from tpaintrmemf3.verizon.com (tpaintrmemf3.verizon.com [138.83.67.58]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0QFnDBZ004584; Mon, 26 Jan 2009 10:49:13 -0500 (EST) Received: from tpaintrmemf3.verizon.com (unknown [127.0.0.1]) by tpaintrmemf3.verizon.com (Symantec Mail Security) with ESMTP id 30D4B528004; Mon, 26 Jan 2009 10:49:13 -0500 (EST) X-AuditID: 8a53433a-abbddbb000000647-14-497ddb79c7d2 Received: from smtptpa3.verizon.com (unknown [138.83.71.176]) by tpaintrmemf3.verizon.com (EMF) with ESMTP id 163994E4002; Mon, 26 Jan 2009 10:49:13 -0500 (EST) Received: from FHDP1CCMXCG02.us.one.verizon.com ([166.68.240.34]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0QFnCTS002110; Mon, 26 Jan 2009 10:49:12 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG02.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 10:49:12 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 10:49:11 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D97365A3CD@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: <497DBDD9.9010905@pi.nu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] the mpls-tp mailing list is the consensus list formpls-tp isseus Thread-Index: Acl/u/5Tk+54O7N4SJiI/ZO0y43Q2AAEXi2w References: <497DBDD9.9010905@pi.nu> From: "Malis, Andrew G. (Andy)" To: "Loa Andersson" , "MEAD team" X-OriginalArrivalTime: 26 Jan 2009 15:49:12.0146 (UTC) FILETIME=[A21AD320:01C97FCD] X-Brightmail-Tracker: AAAAAA== Subject: Re: [Mpls-interop] the mpls-tp mailing list is the consensus list formpls-tp isseus X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Loa, Should we no longer post technical issues to the mpls-interop list? I just want to make sure messages to the right place. Thanks, Andy -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Loa Andersson Sent: Monday, January 26, 2009 8:43 AM To: MEAD team Subject: [Mpls-interop] the mpls-tp mailing list is the consensus list formpls-tp isseus All, we have agreed with our ADs that the mpl-tp@ietf.org shall be used as the consensus list for mpls-tp related drafts and issues. We will still send generic announcements lie this one or working group last cal to the relevant working group mailing lists, but the discussions should be taken to the mpls-tp list. (Cross-) working group consensus will be decided based on the discussion on the mpls-tp list. /Loa -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 07:53:08 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7F09C3A6807; Mon, 26 Jan 2009 07:53:08 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C64DD3A687E for ; Mon, 26 Jan 2009 07:53:06 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.598 X-Spam-Level: X-Spam-Status: No, score=-2.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id F3Q+TsJrBtHi for ; Mon, 26 Jan 2009 07:53:05 -0800 (PST) Received: from prattle.redback.com (prattle.redback.com [155.53.12.9]) by core3.amsl.com (Postfix) with ESMTP id C95C73A6807 for ; Mon, 26 Jan 2009 07:53:05 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by prattle.redback.com (Postfix) with ESMTP id A68FABF33D6; Mon, 26 Jan 2009 07:52:48 -0800 (PST) Received: from prattle.redback.com ([127.0.0.1]) by localhost (prattle [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 29442-01; Mon, 26 Jan 2009 07:52:48 -0800 (PST) Received: from rbsjx.ad.redback.com (rbsjxh1.redback.com [155.53.14.105]) by prattle.redback.com (Postfix) with ESMTP id 51E55BF33D5; Mon, 26 Jan 2009 07:52:48 -0800 (PST) Received: from RBSJX.ad.redback.com ([155.53.14.103]) by rbsjxh1.ad.redback.com ([155.53.14.105]) with mapi; Mon, 26 Jan 2009 07:52:48 -0800 From: David Sinicrope To: Andy Malis , Loa Andersson , MEAD team Date: Mon, 26 Jan 2009 07:52:44 -0800 Thread-Topic: [Mpls-interop] the mpls-tp mailing list is the consensus list formpls-tp isseus Thread-Index: Acl/u/5Tk+54O7N4SJiI/ZO0y43Q2AAEXi2wAAAqVjg= Message-ID: In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97365A3CD@FHDP1LUMXCV24.us.one.verizon.com> Accept-Language: en-US Content-Language: en X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 X-Virus-Scanned: by amavisd-new at redback.com Subject: Re: [Mpls-interop] the mpls-tp mailing list is the consensus list formpls-tp isseus X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0599552427==" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org --===============0599552427== Content-Language: en Content-Type: multipart/alternative; boundary="_000_C5A3467C11D4Aeuddasiredbackcom_" --_000_C5A3467C11D4Aeuddasiredbackcom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Andy, The welcome message below to the MEAD Team (MPLS-Interop) list is my unders= tanding. Welcome to the MPLS-Interoperability Design Team (MEAD Team) email list. T= he MPLS-Interop list is a private list for use by the IETF MEAD Team to dis= cuss MPLS-TP progression and coordination with the ITU-T. A public list fo= r MPLS-TP discussion has been established and should be used for discussing= MPLS-TP technical issues with the community. You also will be added to th= e MEAD Team Wiki access list. The MEAD Team wiki can be found at http://wi= ki.tools.ietf.org/misc/mpls-interop. You will be prompted for a user name = ad password which can be obtained via http://merlot.tools.ietf.org/newlogin= (IETF Tools Get Passwd link) Dave On 1/26/09 10:49 AM, "Andy Malis" wrote: Loa, Should we no longer post technical issues to the mpls-interop list? I just want to make sure messages to the right place. Thanks, Andy -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Loa Andersson Sent: Monday, January 26, 2009 8:43 AM To: MEAD team Subject: [Mpls-interop] the mpls-tp mailing list is the consensus list formpls-tp isseus All, we have agreed with our ADs that the mpl-tp@ietf.org shall be used as the consensus list for mpls-tp related drafts and issues. We will still send generic announcements lie this one or working group last cal to the relevant working group mailing lists, but the discussions should be taken to the mpls-tp list. (Cross-) working group consensus will be decided based on the discussion on the mpls-tp list. /Loa -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop --_000_C5A3467C11D4Aeuddasiredbackcom_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Re: [Mpls-interop] the mpls-tp mailing list is the consensus list fo= rmpls-tp isseus Hi Andy,
The welcome message below to the MEAD Team (MPLS-Interop) list is my unders= tanding.

Welcome to the MPLS-Interoperability Design Team (MEAD Team)= email list.  The MPLS-Interop list is a private list for use by the I= ETF MEAD Team to discuss MPLS-TP progression and coordination with the ITU-= T.  A public list for MPLS-TP discussion has been established and shou= ld be used for discussing MPLS-TP technical issues with the community. &nbs= p;You also will be added to the MEAD Team Wiki access list.  The MEAD = Team wiki can be found at http://wiki.tools.ietf.org/misc/mpls-interop.  You will be= prompted for a user name ad password which can be obtained via http://merlot.tools.ietf.org/newlogi= n (IETF Tools Get Passwd link)

Dave
On 1/26/09 10:49 AM, "Andy Malis" <andrew.g.malis@verizon.com> wrote:

Loa,

Should we no longer post technical issues to the mpls-interop list? I
just want to make sure messages to the right place.

Thanks,
Andy

-----Original Message-----
From: mpls-interop-bounces@ietf.o= rg
[mailto:mpls-interop-bounc= es@ietf.org] On Behalf Of Loa Andersson
Sent: Monday, January 26, 2009 8:43 AM
To: MEAD team
Subject: [Mpls-interop] the mpls-tp mailing list is the consensus list
formpls-tp isseus

All,

we have agreed with our ADs that the mpl-tp@iet= f.org shall be used
as the consensus list for mpls-tp related drafts and issues.

We will still send generic announcements lie this one or working
group last cal to the relevant working group mailing lists, but the
discussions should be taken to the mpls-tp list. (Cross-) working
group consensus will be decided based on the discussion on the
mpls-tp list.

/Loa
--


Loa Andersson

Sr Strategy and Standards Manager
Ericsson ///           &n= bsp;            = ;  phone:  +46 8 632 77 14

            &nb= sp;            =             &nb= sp; email:
loa.andersson@ericsson.com
            &nb= sp;            =             &nb= sp;         loa.andersson@redback.com
            &nb= sp;            =             &nb= sp;         loa@pi.nu


_______________________________________________
Mpls-interop mailing list
Mpls-interop@ietf.org
https://www.= ietf.org/mailman/listinfo/mpls-interop
_______________________________________________
Mpls-interop mailing list
Mpls-interop@ietf.org
https://www.= ietf.org/mailman/listinfo/mpls-interop

--_000_C5A3467C11D4Aeuddasiredbackcom_-- --===============0599552427== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop --===============0599552427==-- From mpls-interop-bounces@ietf.org Mon Jan 26 07:57:14 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BD3143A687E; Mon, 26 Jan 2009 07:57:14 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5792A3A6A45 for ; Mon, 26 Jan 2009 07:57:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.352 X-Spam-Level: X-Spam-Status: No, score=-2.352 tagged_above=-999 required=5 tests=[AWL=-0.103, BAYES_00=-2.599, HELO_EQ_SE=0.35] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id oblG+i3R4VHE for ; Mon, 26 Jan 2009 07:57:13 -0800 (PST) Received: from ns.elverljung.se (ns.elverljung.se [194.68.48.116]) by core3.amsl.com (Postfix) with ESMTP id 801F53A687E for ; Mon, 26 Jan 2009 07:57:13 -0800 (PST) Received: from [192.36.158.123] (wdhcp-158-123.verkstad.net [192.36.158.123]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: loa) by ns.elverljung.se (Postfix) with ESMTPSA id BE59C2D812C; Mon, 26 Jan 2009 16:56:54 +0100 (CET) Message-ID: <497DDD42.7050408@pi.nu> Date: Mon, 26 Jan 2009 16:56:50 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: "Malis, Andrew G. (Andy)" References: <497DBDD9.9010905@pi.nu> <01F652C8CDBE7D4EB7ED860698C6D97365A3CD@FHDP1LUMXCV24.us.one.verizon.com> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97365A3CD@FHDP1LUMXCV24.us.one.verizon.com> Cc: MEAD team Subject: Re: [Mpls-interop] the mpls-tp mailing list is the consensus list for mpls-tp isseus X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Andy, this is a good question, the role of the MEAD team is to drive and coordinate MPLS-TP in genral and MPLS-TP documents in particular. So in the early stage when we try to decide what we think about and want to do with particular document technical discussiona on documents are fine, but we should strive to get this discussion on to the mpls-tp list with the intention to build a broad consensus among the folks subscribed to that list. /Loa Malis, Andrew G. (Andy) wrote: > Loa, > > Should we no longer post technical issues to the mpls-interop list? I > just want to make sure messages to the right place. > > Thanks, > Andy > > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Loa Andersson > Sent: Monday, January 26, 2009 8:43 AM > To: MEAD team > Subject: [Mpls-interop] the mpls-tp mailing list is the consensus list > formpls-tp isseus > > All, > > we have agreed with our ADs that the mpl-tp@ietf.org shall be used > as the consensus list for mpls-tp related drafts and issues. > > We will still send generic announcements lie this one or working > group last cal to the relevant working group mailing lists, but the > discussions should be taken to the mpls-tp list. (Cross-) working > group consensus will be decided based on the discussion on the > mpls-tp list. > > /Loa -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 07:57:52 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id CDE243A6A45; Mon, 26 Jan 2009 07:57:52 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 736F428C0FF for ; Mon, 26 Jan 2009 07:57:52 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.3 X-Spam-Level: X-Spam-Status: No, score=-10.3 tagged_above=-999 required=5 tests=[AWL=0.299, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ucmxABX3ONwJ for ; Mon, 26 Jan 2009 07:57:47 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 33A303A687E for ; Mon, 26 Jan 2009 07:57:47 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,325,1231113600"; d="scan'208";a="31975393" Received: from ams-dkim-2.cisco.com ([144.254.224.139]) by ams-iport-1.cisco.com with ESMTP; 26 Jan 2009 15:57:23 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0QFvN3V014022; Mon, 26 Jan 2009 16:57:23 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0QFvN8U018611; Mon, 26 Jan 2009 15:57:23 GMT Received: from dhcp-gpk02-vlan300-64-103-65-37.cisco.com (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0QFvM725476; Mon, 26 Jan 2009 15:57:22 GMT Message-ID: <497DDD62.1050204@cisco.com> Date: Mon, 26 Jan 2009 15:57:22 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: "Drake, John E" References: <49392C0B.4090202@chello.nl> <43284B5A95E36B4AB4A91EBA4E0FC31E010631AC@DEMUEXC030.nsn-intra.net> <51661468CBD1354294533DA79E85955A015375C0@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <51661468CBD1354294533DA79E85955A015375C0@XCH-SW-5V2.sw.nos.boeing.com> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=962; t=1232985443; x=1233849443; c=relaxed/simple; s=amsdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=GP9lRgIOdriu33JxRN8VCNxshTD/9tUsRe+/zCBeYjk=; b=JGsc9bwb+LfL0lceyl9C0C307BJXCA0vwlnit1CZMgM3xrLmvapTPD+h38 eLV0/hG9tWaFYZ2sUdw5tfcbzHJ580Di9gkCA5bIjcMPWD2mJ6OzYqFhedSy i6QYfnx/XZ; Authentication-Results: ams-dkim-2; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim2001 verified; ); Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Drake, John E wrote: > > > >> -----Original Message----- >> From: Sprecher, Nurit (NSN - IL/Hod HaSharon) >> [mailto:nurit.sprecher@nsn.com] >> Sent: Thursday, December 11, 2008 8:55 AM >> To: ext Ben Niven-Jenkins; mpls-interop@ietf.org >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> The first option also allows you to have better trouble >> shooting in case of a problem (thanks to the clear separation). >> > > JD: Regardless of whether you have MPLS TP/PW/MPLS *or* MPLS TP/MPLS, > you will have two label stacks. The only difference is whether the last > label in the provider's stack is an PW label *or* an MPLS label. This > was the point in Andy's first e-mail, which as I read it, said that > there was nothing magic about that label being a PW label. > John The more important difference is that in MPLS-TP the PW label is followed by a CW which is an object that cannot be forwarded. Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 08:13:01 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 770C43A687E; Mon, 26 Jan 2009 08:13:01 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B22CB3A687E for ; Mon, 26 Jan 2009 08:12:59 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.316 X-Spam-Level: X-Spam-Status: No, score=-10.316 tagged_above=-999 required=5 tests=[AWL=0.283, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id yRO8iei3q0UN for ; Mon, 26 Jan 2009 08:12:58 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 2CA7E3A6807 for ; Mon, 26 Jan 2009 08:12:58 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,326,1231113600"; d="scan'208";a="31977370" Received: from ams-dkim-1.cisco.com ([144.254.224.138]) by ams-iport-1.cisco.com with ESMTP; 26 Jan 2009 16:12:39 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id n0QGCdOH005422; Mon, 26 Jan 2009 17:12:39 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0QGCdVI023697; Mon, 26 Jan 2009 16:12:39 GMT Received: from dhcp-gpk02-vlan300-64-103-65-37.cisco.com (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0QGCY726723; Mon, 26 Jan 2009 16:12:34 GMT Message-ID: <497DE0F2.1050203@cisco.com> Date: Mon, 26 Jan 2009 16:12:34 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: "Malis, Andrew G. (Andy)" References: <01F652C8CDBE7D4EB7ED860698C6D97332DA7F@FHDP1LUMXCV24.us.one.verizon.com> <01F652C8CDBE7D4EB7ED860698C6D97332DB1A@FHDP1LUMXCV24.us.one.verizon.com> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97332DB1A@FHDP1LUMXCV24.us.one.verizon.com> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=3097; t=1232986359; x=1233850359; c=relaxed/simple; s=amsdkim1002; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=Csn1Tjg2etsvQwd+mIvdhvROx3c4yM4x/1NOFaTaBFU=; b=LS2I1TR5HE/9+IoX/kONsoA2+9tZcLCfXh/5lilBa6fbCKUqQ1XN2rtBqu M/ANiEj1sQ0yW30ySJ8Abfp0a4kJdVyeTpF/998dA2w3JX8UIG81CgLNJipH utcF54o4VP; Authentication-Results: ams-dkim-1; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim1002 verified; ); Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Malis, Andrew G. (Andy) wrote: > How is it any better for a PW? You still have a label at the top of the > stack. There are two scenarios: > > 1. A label is popped at the MPLS-TP layer that shouldn't have been > > That's either going to expose another label at that layer that won't be > have the proper context, or the start of an IP packet that'll be > misinterpreted as a label (since MPLS-TP switches presumably won't know > how to forward IP, at least in the fast path). In either case, if > there's a matching label allocation to the 20 bits in the header, then > it'll be forwarded out a random interface, or dropped if there's no > match. > The packet starts out looking like this LSP-label/PW-label/CW If it is being forwarded incorrectly on the LSP label it can only exit the network at PE that also has a PW configured on that PW label. If labels were to be randomly allocated the probability of a chain of matches would be low - at least an improvement by the square of the probability of a hit compared to the single label case. If it is being forwarded incorrectly on the PW-label it cannot exit the n/w via a PW because there is no PW label to pop, and it cannot exit as an IP pkt because the first nibble is 0. Stewart > 2. An MPLS-TP label wasn't popped that should have been > > That'll expose (probably) the bottom-most MPLS-TP label to the IP/MPLS > client router. Again, what happens next depends on how that label is > interpreted by the router. > > Either way, how are things any better if you use a PW label? > > Cheers, > Andy > > -----Original Message----- > From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] > Sent: Thursday, December 11, 2008 3:03 PM > To: Malis, Andrew G. (Andy); Adrian Farrel; Drake, John E; > mpls-interop@ietf.org > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > Andy, > > > On 11/12/2008 15:31, "Malis, Andrew G. (Andy)" > > wrote: > >> AM> The intention would be that the MPLS-TP EOS bit would only be >> encountered at boundary the MPLS-TP network, and the payload would >> delivered to the client to do with as it desires (and expects), >> > whether > >> it's IP to forward, MPLS to switch using router-allocated labels, PW >> contents, or something else entirely. To the client, there should be >> > no > >> difference (at some layer of abstraction above the interface details) >> between using MPLS-TP for transport and POS or GFP encapsulation for >> transport. >> > > Yes, but my concern is that IP & MPLS may well be 'recognised' in the > network core and if something happened (e.g. Erroneous label pop) to > expose > them they could be forwarded natively in error. Other traffic types are > unlikely to have this happen as the network core is unlikely to support > natively forwarding them. > > Ben > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 08:16:26 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 991303A6A20; Mon, 26 Jan 2009 08:16:26 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A0E773A6A20 for ; Mon, 26 Jan 2009 08:16:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.33 X-Spam-Level: X-Spam-Status: No, score=-10.33 tagged_above=-999 required=5 tests=[AWL=0.269, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zCRcMiXfRIeS for ; Mon, 26 Jan 2009 08:16:23 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 30B633A69DA for ; Mon, 26 Jan 2009 08:16:23 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,326,1231113600"; d="scan'208";a="31977830" Received: from ams-dkim-2.cisco.com ([144.254.224.139]) by ams-iport-1.cisco.com with ESMTP; 26 Jan 2009 16:16:04 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0QGG4Ma019975; Mon, 26 Jan 2009 17:16:04 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0QGG41t024828; Mon, 26 Jan 2009 16:16:04 GMT Received: from dhcp-gpk02-vlan300-64-103-65-37.cisco.com (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0QGG2726948; Mon, 26 Jan 2009 16:16:03 GMT Message-ID: <497DE1C2.1070107@cisco.com> Date: Mon, 26 Jan 2009 16:16:02 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: "Malis, Andrew G. (Andy)" References: <01F652C8CDBE7D4EB7ED860698C6D97332DA7F@FHDP1LUMXCV24.us.one.verizon.com> <01F652C8CDBE7D4EB7ED860698C6D97332DB1A@FHDP1LUMXCV24.us.one.verizon.com> <6535C9CED6F87446B41D20EF170F23621BDC42@mamxm01.ciena.com> <01F652C8CDBE7D4EB7ED860698C6D97332DB2D@FHDP1LUMXCV24.us.one.verizon.com> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97332DB2D@FHDP1LUMXCV24.us.one.verizon.com> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=358; t=1232986564; x=1233850564; c=relaxed/simple; s=amsdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=X1chbT9qHeZHNJrfpXQ+dn8YAnhip8dxACHCN+nvQaQ=; b=kImJG3nLvb3PwrbnUoq3AxOz5SpsFFIYJFcf2ITL0jKpsL3n9cQqMB2Ase rE+dS9+V4ZM6tGNADqJFdPiMhU/N2FyqnwROMFZRZ7EUpQoCgYy+jGe4X502 5/4sDIi27n; Authentication-Results: ams-dkim-2; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim2001 verified; ); Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Malis, Andrew G. (Andy) wrote: > Himanshu, > > If things are misconfigured that badly, why couldn't the PW control word be misinterpreted as a label if too many labels were popped at the MPLS-TP layer? > If sequence numbers were not in use - and I can't see why they would be - TTL would be zero which would cause the pkt to be dropped. Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 08:21:28 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7BE013A682A; Mon, 26 Jan 2009 08:21:28 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id EB5223A686C for ; Mon, 26 Jan 2009 08:21:27 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.343 X-Spam-Level: X-Spam-Status: No, score=-10.343 tagged_above=-999 required=5 tests=[AWL=0.256, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rpVVbCVsVZdu for ; Mon, 26 Jan 2009 08:21:27 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 1F29B3A69DA for ; Mon, 26 Jan 2009 08:21:00 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,326,1231113600"; d="scan'208";a="31978535" Received: from ams-dkim-2.cisco.com ([144.254.224.139]) by ams-iport-1.cisco.com with ESMTP; 26 Jan 2009 16:20:42 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0QGKfHs021667; Mon, 26 Jan 2009 17:20:41 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0QGKfCQ026644; Mon, 26 Jan 2009 16:20:41 GMT Received: from dhcp-gpk02-vlan300-64-103-65-37.cisco.com (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0QGKe727394; Mon, 26 Jan 2009 16:20:40 GMT Message-ID: <497DE2D8.1050905@cisco.com> Date: Mon, 26 Jan 2009 16:20:40 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: "Malis, Andrew G. (Andy)" References: <01F652C8CDBE7D4EB7ED860698C6D97332DA7F@FHDP1LUMXCV24.us.one.verizon.com> <01F652C8CDBE7D4EB7ED860698C6D97332DB1A@FHDP1LUMXCV24.us.one.verizon.com> <6535C9CED6F87446B41D20EF170F23621BDC42@mamxm01.ciena.com> <01F652C8CDBE7D4EB7ED860698C6D97332DB2D@FHDP1LUMXCV24.us.one.verizon.com> <6535C9CED6F87446B41D20EF170F23621BDC45@mamxm01.ciena.com> <01F652C8CDBE7D4EB7ED860698C6D97332DB3A@FHDP1LUMXCV24.us.one.verizon.com> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97332DB3A@FHDP1LUMXCV24.us.one.verizon.com> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=392; t=1232986841; x=1233850841; c=relaxed/simple; s=amsdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=gXAhF4kWr51DTfqCImIVCWfHQ5YBeYp6ZX44qUXqRrc=; b=M1SSZ0YJxn4A1abZy76UdWBefqpPBIEReFXd1AbdO2zF4fb2pH7CUzQrQv CoFJSXFD/BU7egwo3gRcQTy6iA+ank50qE+lrbiGuuBdtyxBIG+2MgX7WoM/ IQHtTZLHVa; Authentication-Results: ams-dkim-2; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim2001 verified; ); Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Malis, Andrew G. (Andy) wrote: > Himanshu, > > I still don't get what protection the PW gives you over not having the PW. > > The CW cannot get confused with an IP pkt or a label that can take the pkt anywhere. It starts with four zeros and ends with 16 zeros (assuming no sequence numbers). That means it's not IP and its TTL is zero. That kills it on the spot. Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 08:26:34 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id EE0CF3A687E; Mon, 26 Jan 2009 08:26:34 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A01703A69DD for ; Mon, 26 Jan 2009 08:26:33 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.355 X-Spam-Level: X-Spam-Status: No, score=-10.355 tagged_above=-999 required=5 tests=[AWL=0.244, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wgJz4aC+x1KR for ; Mon, 26 Jan 2009 08:26:32 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 5E4723A687E for ; Mon, 26 Jan 2009 08:26:32 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,326,1231113600"; d="scan'208";a="31979289" Received: from ams-dkim-1.cisco.com ([144.254.224.138]) by ams-iport-1.cisco.com with ESMTP; 26 Jan 2009 16:26:13 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id n0QGQDlZ010009; Mon, 26 Jan 2009 17:26:14 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0QGQDc7028571; Mon, 26 Jan 2009 16:26:13 GMT Received: from dhcp-gpk02-vlan300-64-103-65-37.cisco.com (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0QGQD727858; Mon, 26 Jan 2009 16:26:13 GMT Message-ID: <497DE425.8030409@cisco.com> Date: Mon, 26 Jan 2009 16:26:13 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: "Drake, John E" References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com><497C8CB0.8010201@cisco.com> <51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com> <077E41CFFD002C4CAB7DFA4386A5326435D72D@DEMUEXC014.nsn-intra.net> <51661468CBD1354294533DA79E85955A016703BE@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <51661468CBD1354294533DA79E85955A016703BE@XCH-SW-5V2.sw.nos.boeing.com> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=309; t=1232987174; x=1233851174; c=relaxed/simple; s=amsdkim1002; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=IgwzaEhYNtoEzzaFm9NFQ/8cqBVEtVHBnQUJIEBXzZA=; b=GchONMjIYzWqBlSUn6PQ79jnFNGoA97Gwm+5A9q4t9XA1ebefrP0nAhuVW SONQSTIYxVI/PZnrLm4d7Ev/J60y66BI4/Et7uOtxaWEsYw+c7XiEd2EbTGZ /cJrz9OtCl; Authentication-Results: ams-dkim-1; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim1002 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org John > > JD: *Requiring* a PW header in order to transport an MPLS payload over > an MPLS LSP strikes me as an IQ test that one has failed. I always fail those - I take it to indicate a faulty test methodology :) The CW will poison the packet anywhere other than where a CW is expected. Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 08:29:28 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6EBE53A6A79; Mon, 26 Jan 2009 08:29:28 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id EF9F928C230 for ; Mon, 26 Jan 2009 08:29:26 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.563 X-Spam-Level: X-Spam-Status: No, score=-6.563 tagged_above=-999 required=5 tests=[AWL=0.036, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7ST2htpIklJh for ; Mon, 26 Jan 2009 08:29:26 -0800 (PST) Received: from slb-smtpout-01.boeing.com (slb-smtpout-01.boeing.com [130.76.64.48]) by core3.amsl.com (Postfix) with ESMTP id 25FF33A6A79 for ; Mon, 26 Jan 2009 08:29:26 -0800 (PST) Received: from blv-av-01.boeing.com (blv-av-01.boeing.com [130.247.48.231]) by slb-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0QGSsME023845 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 26 Jan 2009 08:28:55 -0800 (PST) Received: from blv-av-01.boeing.com (localhost [127.0.0.1]) by blv-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0QGSsin001727; Mon, 26 Jan 2009 08:28:54 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by blv-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0QGSjCg001441; Mon, 26 Jan 2009 08:28:54 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 08:28:53 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 08:28:52 -0800 Message-ID: <51661468CBD1354294533DA79E85955A0167042A@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <497DDD62.1050204@cisco.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/zs52Yenoz5ACQvOQmYRI63d4jwAA8/Hg References: <49392C0B.4090202@chello.nl> <43284B5A95E36B4AB4A91EBA4E0FC31E010631AC@DEMUEXC030.nsn-intra.net> <51661468CBD1354294533DA79E85955A015375C0@XCH-SW-5V2.sw.nos.boeing.com> <497DDD62.1050204@cisco.com> From: "Drake, John E" To: X-OriginalArrivalTime: 26 Jan 2009 16:28:53.0653 (UTC) FILETIME=[2D97F450:01C97FD3] Cc: mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org >-----Original Message----- >From: Stewart Bryant [mailto:stbryant@cisco.com] >Sent: Monday, January 26, 2009 7:57 AM >To: Drake, John E >Cc: Sprecher, Nurit (NSN - IL/Hod HaSharon); ext Ben >Niven-Jenkins; mpls-interop@ietf.org >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Drake, John E wrote: >> >> >> >>> -----Original Message----- >>> From: Sprecher, Nurit (NSN - IL/Hod HaSharon) >>> [mailto:nurit.sprecher@nsn.com] >>> Sent: Thursday, December 11, 2008 8:55 AM >>> To: ext Ben Niven-Jenkins; mpls-interop@ietf.org >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> The first option also allows you to have better trouble shooting in >>> case of a problem (thanks to the clear separation). >>> >> >> JD: Regardless of whether you have MPLS TP/PW/MPLS *or* >MPLS TP/MPLS, >> you will have two label stacks. The only difference is whether the >> last label in the provider's stack is an PW label *or* an >MPLS label. >> This was the point in Andy's first e-mail, which as I read it, said >> that there was nothing magic about that label being a PW label. >> >John > >The more important difference is that in MPLS-TP the PW label >is followed by a CW which is an object that cannot be forwarded. > >Stewart JD: Stewart, in either case, the 'end of stack' bit will be set. I don't see how you can assert that an implementation which does not respect the 'end of stack' bit will consider the CW to be sacrosanct. > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 08:39:07 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 596F93A682A; Mon, 26 Jan 2009 08:39:07 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2B7533A687E for ; Mon, 26 Jan 2009 08:39:06 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.564 X-Spam-Level: X-Spam-Status: No, score=-6.564 tagged_above=-999 required=5 tests=[AWL=0.035, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gY7z2OzVi5Wy for ; Mon, 26 Jan 2009 08:39:05 -0800 (PST) Received: from stl-smtpout-01.boeing.com (stl-smtpout-01.boeing.com [130.76.96.56]) by core3.amsl.com (Postfix) with ESMTP id 4D9CB3A682A for ; Mon, 26 Jan 2009 08:39:05 -0800 (PST) Received: from slb-av-01.boeing.com (slb-av-01.boeing.com [129.172.13.4]) by stl-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0QGcZWV012152 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 26 Jan 2009 10:38:36 -0600 (CST) Received: from slb-av-01.boeing.com (localhost [127.0.0.1]) by slb-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0QGcZfg023849; Mon, 26 Jan 2009 08:38:35 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by slb-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0QGcZJ4023832; Mon, 26 Jan 2009 08:38:35 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 08:38:33 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 08:38:32 -0800 Message-ID: <51661468CBD1354294533DA79E85955A01670436@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <497DE425.8030409@cisco.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tCXKgYPRRxGRZC/C+sB0voW4AAAQuKw References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com><497C8CB0.8010201@cisco.com> <51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com> <077E41CFFD002C4CAB7DFA4386A5326435D72D@DEMUEXC014.nsn-intra.net> <51661468CBD1354294533DA79E85955A016703BE@XCH-SW-5V2.sw.nos.boeing.com> <497DE425.8030409@cisco.com> From: "Drake, John E" To: X-OriginalArrivalTime: 26 Jan 2009 16:38:33.0012 (UTC) FILETIME=[86EB1F40:01C97FD4] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Please see my other e-mail reply to you. You cannot assert apriori what a rogue implementation will do. >-----Original Message----- >From: Stewart Bryant [mailto:stbryant@cisco.com] >Sent: Monday, January 26, 2009 8:26 AM >To: Drake, John E >Cc: Sprecher, Nurit (NSN - IL/Hod HaSharon); >mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >John >> >> JD: *Requiring* a PW header in order to transport an MPLS payload >> over an MPLS LSP strikes me as an IQ test that one has failed. > >I always fail those - I take it to indicate a faulty test >methodology :) > >The CW will poison the packet anywhere other than where a CW >is expected. > >Stewart > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 08:42:58 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6B47D3A687E; Mon, 26 Jan 2009 08:42:58 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7956728C187 for ; Mon, 26 Jan 2009 08:42:57 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.382 X-Spam-Level: X-Spam-Status: No, score=-2.382 tagged_above=-999 required=5 tests=[AWL=0.217, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6Q+Jtz-65Z94 for ; Mon, 26 Jan 2009 08:42:56 -0800 (PST) Received: from irvmail2.verizon.com (irvmail2.verizon.com [192.76.80.130]) by core3.amsl.com (Postfix) with ESMTP id 8844C3A687E for ; Mon, 26 Jan 2009 08:42:56 -0800 (PST) Received: from smtptpa3.verizon.com (smtptpa3.verizon.com [138.83.71.176]) by irvmail2.verizon.com (8.13.3/8.13.3) with ESMTP id n0QGgW7N022095; Mon, 26 Jan 2009 10:42:33 -0600 (CST) Received: from tpaintrmemf3.verizon.com (tpaintrmemf3.verizon.com [138.83.67.58]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0QGgWhC006265; Mon, 26 Jan 2009 11:42:32 -0500 (EST) Received: from tpaintrmemf3.verizon.com (unknown [127.0.0.1]) by tpaintrmemf3.verizon.com (Symantec Mail Security) with ESMTP id 54F5A528002; Mon, 26 Jan 2009 11:42:32 -0500 (EST) X-AuditID: 8a53433a-ae3e2bb000000647-09-497de7f8fb2e Received: from smtpftw3.verizon.com (unknown [138.83.140.92]) by tpaintrmemf3.verizon.com (EMF) with ESMTP id 1F2AB4E4002; Mon, 26 Jan 2009 11:42:32 -0500 (EST) Received: from FHDP1CCMXCG01.us.one.verizon.com ([166.68.240.33]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0QGgQfW001749; Mon, 26 Jan 2009 11:42:31 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG01.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 11:42:31 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 11:41:54 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D97365A3F1@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: <497DE425.8030409@cisco.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9w References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com><497C8CB0.8010201@cisco.com><51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com><077E41CFFD002C4CAB7DFA4386A5326435D72D@DEMUEXC014.nsn-intra.net><51661468CBD1354294533DA79E85955A016703BE@XCH-SW-5V2.sw.nos.boeing.com> <497DE425.8030409@cisco.com> From: "Malis, Andrew G. (Andy)" To: , "Drake, John E" X-OriginalArrivalTime: 26 Jan 2009 16:42:31.0287 (UTC) FILETIME=[14F10070:01C97FD5] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Stewart, Boy, talk about dredging up old emails ... I've been thinking some more about this issue since our discussion last week in Ipswich. The question I asked there was whether what we gain from putting a PW label and CW in the stack to separate the MPLS-TP stack and the MPLS stack are worth the cost: - 64 additional bits in the packet header (obviously) - LDP signaling between the PW endpoints to distribute the PW label As I see it, what we gain is: - a clear demark (although you would get that as well with the S bit) - a serial number so that the MPLS PW can be kept in-order (although you have been arguing against using the serial number in your last few emails) - a non-IP first nibble and a zero TTL in the CW (assuming that a serial number is not used) to "poison the stack" in case there's a provisioning problem So it really comes down to having the "poison" in the stack in the unlikely case of a provisioning mismatch in an endpoint switch. I'm still not convinced that it's worth the cost, although I could possibly still be convinced. Are there any other advantages that I've missed? Cheers, Andy -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant Sent: Monday, January 26, 2009 11:26 AM To: Drake, John E Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP John > > JD: *Requiring* a PW header in order to transport an MPLS payload over > an MPLS LSP strikes me as an IQ test that one has failed. I always fail those - I take it to indicate a faulty test methodology :) The CW will poison the packet anywhere other than where a CW is expected. Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 08:54:33 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B5AC93A6807; Mon, 26 Jan 2009 08:54:33 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 49D2428C17C for ; Mon, 26 Jan 2009 08:54:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.565 X-Spam-Level: X-Spam-Status: No, score=-6.565 tagged_above=-999 required=5 tests=[AWL=0.034, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rJfOaepkYlpi for ; Mon, 26 Jan 2009 08:54:31 -0800 (PST) Received: from slb-smtpout-01.boeing.com (slb-smtpout-01.boeing.com [130.76.64.48]) by core3.amsl.com (Postfix) with ESMTP id 651D13A6807 for ; Mon, 26 Jan 2009 08:54:31 -0800 (PST) Received: from slb-av-01.boeing.com (slb-av-01.boeing.com [129.172.13.4]) by slb-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0QGsDvp011840 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 26 Jan 2009 08:54:13 -0800 (PST) Received: from slb-av-01.boeing.com (localhost [127.0.0.1]) by slb-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0QGsD2t022394; Mon, 26 Jan 2009 08:54:13 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by slb-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0QGsDSg022385; Mon, 26 Jan 2009 08:54:13 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 08:54:12 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 08:54:12 -0800 Message-ID: <51661468CBD1354294533DA79E85955A0167044D@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97365A3F1@FHDP1LUMXCV24.us.one.verizon.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eA= References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com><497C8CB0.8010201@cisco.com><51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com><077E41CFFD002C4CAB7DFA4386A5326435D72D@DEMUEXC014.nsn-intra.net><51661468CBD1354294533DA79E85955A016703BE@XCH-SW-5V2.sw.nos.boeing.com> <497DE425.8030409@cisco.com> <01F652C8CDBE7D4EB7ED860698C6D97365A3F1@FHDP1LUMXCV24.us.one.verizon.com> From: "Drake, John E" To: "Malis, Andrew G. (Andy)" , X-OriginalArrivalTime: 26 Jan 2009 16:54:12.0996 (UTC) FILETIME=[B7314C40:01C97FD6] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Andy, Per RFC 4448, the control word is optional for Ethernet PWs, so its presence cannot be counted on. If it is present, the sequence number field may be used so that the bottom sixteen bits may not be zero. Given that we are talking about a rogue implementation that does not respect the 'end of stack' bit, I don't see much utility. Thanks, John >-----Original Message----- >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >Sent: Monday, January 26, 2009 8:42 AM >To: stbryant@cisco.com; Drake, John E >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > >Stewart, > >Boy, talk about dredging up old emails ... > >I've been thinking some more about this issue since our >discussion last week in Ipswich. The question I asked there >was whether what we gain from putting a PW label and CW in the >stack to separate the MPLS-TP stack and the MPLS stack are >worth the cost: > >- 64 additional bits in the packet header (obviously) >- LDP signaling between the PW endpoints to distribute the PW label > >As I see it, what we gain is: > >- a clear demark (although you would get that as well with the S bit) >- a serial number so that the MPLS PW can be kept in-order >(although you have been arguing against using the serial >number in your last few >emails) >- a non-IP first nibble and a zero TTL in the CW (assuming >that a serial number is not used) to "poison the stack" in >case there's a provisioning problem > >So it really comes down to having the "poison" in the stack in >the unlikely case of a provisioning mismatch in an endpoint >switch. I'm still not convinced that it's worth the cost, >although I could possibly still be convinced. Are there any >other advantages that I've missed? > >Cheers, >Andy > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >Sent: Monday, January 26, 2009 11:26 AM >To: Drake, John E >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >John >> >> JD: *Requiring* a PW header in order to transport an MPLS payload >over >> an MPLS LSP strikes me as an IQ test that one has failed. > >I always fail those - I take it to indicate a faulty test >methodology :) > >The CW will poison the packet anywhere other than where a CW >is expected. > >Stewart >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 08:58:31 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 26E863A6807; Mon, 26 Jan 2009 08:58:31 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 003513A6A55 for ; Mon, 26 Jan 2009 08:58:30 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.365 X-Spam-Level: X-Spam-Status: No, score=-10.365 tagged_above=-999 required=5 tests=[AWL=0.234, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id q3KSttXlgsM5 for ; Mon, 26 Jan 2009 08:58:29 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 861F63A6807 for ; Mon, 26 Jan 2009 08:58:28 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,326,1231113600"; d="scan'208";a="31982979" Received: from ams-dkim-1.cisco.com ([144.254.224.138]) by ams-iport-1.cisco.com with ESMTP; 26 Jan 2009 16:58:10 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id n0QGwAHi019587; Mon, 26 Jan 2009 17:58:10 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0QGw97h008785; Mon, 26 Jan 2009 16:58:09 GMT Received: from dhcp-gpk02-vlan300-64-103-65-37.cisco.com (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0QGw7701285; Mon, 26 Jan 2009 16:58:07 GMT Message-ID: <497DEB9E.8040602@cisco.com> Date: Mon, 26 Jan 2009 16:58:06 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: "Malis, Andrew G. (Andy)" References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com><497C8CB0.8010201@cisco.com><51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com><077E41CFFD002C4CAB7DFA4386A5326435D72D@DEMUEXC014.nsn-intra.net><51661468CBD1354294533DA79E85955A016703BE@XCH-SW-5V2.sw.nos.boeing.com> <497DE425.8030409@cisco.com> <01F652C8CDBE7D4EB7ED860698C6D97365A3F1@FHDP1LUMXCV24.us.one.verizon.com> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97365A3F1@FHDP1LUMXCV24.us.one.verizon.com> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=1353; t=1232989090; x=1233853090; c=relaxed/simple; s=amsdkim1002; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=2n873yvLOOIv6Po2cYguh3BMk37Lo7NU2pPiUVKYDG4=; b=km+TEjjnBkNKqbvtdXkk/bsKnT9VDXhqK3glnAec51bD8o9JMtGPrZG/Oe yx9ZmH2J7Ce6xRdEwbLoIO1EX3Z+a3LDt2DyHgelZSNVfd7XWCVRqycvtHDF o4U+2Hvy8l; Authentication-Results: ams-dkim-1; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim1002 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Malis, Andrew G. (Andy) wrote: > Stewart, > > Boy, talk about dredging up old emails ... > > I've been thinking some more about this issue since our discussion last > week in Ipswich. The question I asked there was whether what we gain > from putting a PW label and CW in the stack to separate the MPLS-TP > stack and the MPLS stack are worth the cost: > > - 64 additional bits in the packet header (obviously) > - LDP signaling between the PW endpoints to distribute the PW label > Except when you are statically configured. > As I see it, what we gain is: > > - a clear demark (although you would get that as well with the S bit) > - a serial number so that the MPLS PW can be kept in-order (although you > have been arguing against using the serial number in your last few > emails) > - a non-IP first nibble and a zero TTL in the CW (assuming that a serial > number is not used) to "poison the stack" in case there's a provisioning > problem > > So it really comes down to having the "poison" in the stack in the > unlikely case of a provisioning mismatch in an endpoint switch. I'm > still not convinced that it's worth the cost, although I could possibly > still be convinced. Are there any other advantages that I've missed? > > > Same label stack for OAM (0001 in CW vs additional label 13). Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 09:04:08 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 772383A6807; Mon, 26 Jan 2009 09:04:08 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 41E153A6AF3 for ; Mon, 26 Jan 2009 09:04:07 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.394 X-Spam-Level: X-Spam-Status: No, score=-2.394 tagged_above=-999 required=5 tests=[AWL=0.205, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6Ow0syp6rhqb for ; Mon, 26 Jan 2009 09:04:06 -0800 (PST) Received: from tpamail2.verizon.com (tpamail2.verizon.com [192.76.82.136]) by core3.amsl.com (Postfix) with ESMTP id 4014C3A6A55 for ; Mon, 26 Jan 2009 09:04:06 -0800 (PST) Received: from smtptpa3.verizon.com (smtptpa3.verizon.com [138.83.71.176]) by tpamail2.verizon.com (8.13.3/8.13.3) with ESMTP id n0QH1w7G012755; Mon, 26 Jan 2009 12:01:58 -0500 (EST) Received: from ftwintrmemf2.verizon.com (ftwintrmemf2.verizon.com [138.83.131.184]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0QH1vgs000233; Mon, 26 Jan 2009 12:01:57 -0500 (EST) Received: from ftwintrmemf2.verizon.com (unknown [127.0.0.1]) by ftwintrmemf2.verizon.com (Symantec Mail Security) with ESMTP id 925E2528003; Mon, 26 Jan 2009 12:01:57 -0500 (EST) X-AuditID: 8a5383b8-a56bfbb000000647-4b-497dec85cd83 Received: from smtpftw3.verizon.com (unknown [138.83.140.92]) by ftwintrmemf2.verizon.com (EMF) with ESMTP id 6A2DD4E4002; Mon, 26 Jan 2009 12:01:57 -0500 (EST) Received: from FHDP1CCMXCG01.us.one.verizon.com ([166.68.240.33]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0QH1pqe025647; Mon, 26 Jan 2009 12:01:57 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG01.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 12:01:55 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 12:01:01 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D97365A409@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: <51661468CBD1354294533DA79E85955A0167044D@XCH-SW-5V2.sw.nos.boeing.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98A== References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com><497C8CB0.8010201@cisco.com><51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com><077E41CFFD002C4CAB7DFA4386A5326435D72D@DEMUEXC014.nsn-intra.net><51661468CBD1354294533DA79E85955A016703BE@XCH-SW-5V2.sw.nos.boeing.com> <497DE425.8030409@cisco.com> <01F652C8CDBE7D4EB7ED860698C6D97365A3F1@FHDP1LUMXCV24.us.one.verizon.com> <51661468CBD1354294533DA79E85955A0167044D@XCH-SW-5V2.sw.nos.boeing.com> From: "Malis, Andrew G. (Andy)" To: "Drake, John E" , X-OriginalArrivalTime: 26 Jan 2009 17:01:55.0177 (UTC) FILETIME=[CAAC8590:01C97FD7] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org John, This would be for an MPLS PW, which we have not yet defined (a new MPLS PW draft would be required). Thus, we are free to make up the rules. Note that I'm still pretty much in agreement that we don't need an MPLS PW to run MPLS over MPLS-TP (I'm still awaiting further arguments from Stewart or anyone else that wants to argue in favor of using a PW). However, I do think that we would need an MPLS-TP PW if we wanted to run MPLS-TP over MPLS (that came up last week as well). The primary issue here is that MPLS-TP over MPLS would require in-order delivery, so it has to avoid ECMP. Cheers, Andy -----Original Message----- From: Drake, John E [mailto:John.E.Drake2@boeing.com] Sent: Monday, January 26, 2009 11:54 AM To: Malis, Andrew G. (Andy); stbryant@cisco.com Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: RE: [Mpls-interop] MPLS over MPLS-TP Andy, Per RFC 4448, the control word is optional for Ethernet PWs, so its presence cannot be counted on. If it is present, the sequence number field may be used so that the bottom sixteen bits may not be zero. Given that we are talking about a rogue implementation that does not respect the 'end of stack' bit, I don't see much utility. Thanks, John >-----Original Message----- >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >Sent: Monday, January 26, 2009 8:42 AM >To: stbryant@cisco.com; Drake, John E >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > >Stewart, > >Boy, talk about dredging up old emails ... > >I've been thinking some more about this issue since our >discussion last week in Ipswich. The question I asked there >was whether what we gain from putting a PW label and CW in the >stack to separate the MPLS-TP stack and the MPLS stack are >worth the cost: > >- 64 additional bits in the packet header (obviously) >- LDP signaling between the PW endpoints to distribute the PW label > >As I see it, what we gain is: > >- a clear demark (although you would get that as well with the S bit) >- a serial number so that the MPLS PW can be kept in-order >(although you have been arguing against using the serial >number in your last few >emails) >- a non-IP first nibble and a zero TTL in the CW (assuming >that a serial number is not used) to "poison the stack" in >case there's a provisioning problem > >So it really comes down to having the "poison" in the stack in >the unlikely case of a provisioning mismatch in an endpoint >switch. I'm still not convinced that it's worth the cost, >although I could possibly still be convinced. Are there any >other advantages that I've missed? > >Cheers, >Andy > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >Sent: Monday, January 26, 2009 11:26 AM >To: Drake, John E >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >John >> >> JD: *Requiring* a PW header in order to transport an MPLS payload >over >> an MPLS LSP strikes me as an IQ test that one has failed. > >I always fail those - I take it to indicate a faulty test >methodology :) > >The CW will poison the packet anywhere other than where a CW >is expected. > >Stewart >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 09:14:48 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E550F28C23B; Mon, 26 Jan 2009 09:14:48 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9DF1028C255 for ; Mon, 26 Jan 2009 09:14:47 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.565 X-Spam-Level: X-Spam-Status: No, score=-6.565 tagged_above=-999 required=5 tests=[AWL=0.034, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NlsrhqvtKe8O for ; Mon, 26 Jan 2009 09:14:46 -0800 (PST) Received: from stl-smtpout-01.boeing.com (stl-smtpout-01.boeing.com [130.76.96.56]) by core3.amsl.com (Postfix) with ESMTP id 58CAF28C23B for ; Mon, 26 Jan 2009 09:14:46 -0800 (PST) Received: from blv-av-01.boeing.com (blv-av-01.boeing.com [130.247.48.231]) by stl-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0QHEG1p007146 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 26 Jan 2009 11:14:17 -0600 (CST) Received: from blv-av-01.boeing.com (localhost [127.0.0.1]) by blv-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0QHEG54020343; Mon, 26 Jan 2009 09:14:16 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by blv-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0QHEFUc020315; Mon, 26 Jan 2009 09:14:16 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 09:14:16 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 09:14:14 -0800 Message-ID: <51661468CBD1354294533DA79E85955A01670476@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97365A409@FHDP1LUMXCV24.us.one.verizon.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAAYsKA References: <49392C0B.4090202@chello.nl> <51661468CBD1354294533DA79E85955A01537442@XCH-SW-5V2.sw.nos.boeing.com><497C8CB0.8010201@cisco.com><51661468CBD1354294533DA79E85955A016703A0@XCH-SW-5V2.sw.nos.boeing.com><077E41CFFD002C4CAB7DFA4386A5326435D72D@DEMUEXC014.nsn-intra.net><51661468CBD1354294533DA79E85955A016703BE@XCH-SW-5V2.sw.nos.boeing.com> <497DE425.8030409@cisco.com> <01F652C8CDBE7D4EB7ED860698C6D97365A3F1@FHDP1LUMXCV24.us.one.verizon.com> <51661468CBD1354294533DA79E85955A0167044D@XCH-SW-5V2.sw.nos.boeing.com> <01F652C8CDBE7D4EB7ED860698C6D97365A409@FHDP1LUMXCV24.us.one.verizon.com> From: "Drake, John E" To: "Malis, Andrew G. (Andy)" , X-OriginalArrivalTime: 26 Jan 2009 17:14:16.0028 (UTC) FILETIME=[844169C0:01C97FD9] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Andy, I'm sorry, this is the first I have heard of a proposal to invent a new PW type for transporting MPLS over MPLS. However, it doesn't change my opinion that it is totally useless, unless you are of the opinion that a technology isn't complete until it includes PWs. As I understand it, as long as the first nibble does not indicate that the packet is either an IPv4 or IPv6 packet, ECMP will be disabled. As I indicated in my note to Ben, the control plane or management plane can insure this requirement for any LSPs established over the SP MPLS LSP. Thanks, John >-----Original Message----- >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >Sent: Monday, January 26, 2009 9:01 AM >To: Drake, John E; stbryant@cisco.com >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > >John, > >This would be for an MPLS PW, which we have not yet defined (a >new MPLS PW draft would be required). Thus, we are free to >make up the rules. > >Note that I'm still pretty much in agreement that we don't >need an MPLS PW to run MPLS over MPLS-TP (I'm still awaiting >further arguments from Stewart or anyone else that wants to >argue in favor of using a PW). > >However, I do think that we would need an MPLS-TP PW if we >wanted to run MPLS-TP over MPLS (that came up last week as >well). The primary issue here is that MPLS-TP over MPLS would >require in-order delivery, so it has to avoid ECMP. > >Cheers, >Andy > >-----Original Message----- >From: Drake, John E [mailto:John.E.Drake2@boeing.com] >Sent: Monday, January 26, 2009 11:54 AM >To: Malis, Andrew G. (Andy); stbryant@cisco.com >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > >Andy, > >Per RFC 4448, the control word is optional for Ethernet PWs, >so its presence cannot be counted on. If it is present, the >sequence number field may be used so that the bottom sixteen >bits may not be zero. > >Given that we are talking about a rogue implementation that >does not respect the 'end of stack' bit, I don't see much utility. > >Thanks, > >John > >>-----Original Message----- >>From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>Sent: Monday, January 26, 2009 8:42 AM >>To: stbryant@cisco.com; Drake, John E >>Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >>Stewart, >> >>Boy, talk about dredging up old emails ... >> >>I've been thinking some more about this issue since our >discussion last >>week in Ipswich. The question I asked there was whether what we gain >>from putting a PW label and CW in the stack to separate the MPLS-TP >>stack and the MPLS stack are worth the cost: >> >>- 64 additional bits in the packet header (obviously) >>- LDP signaling between the PW endpoints to distribute the PW label >> >>As I see it, what we gain is: >> >>- a clear demark (although you would get that as well with the S bit) >>- a serial number so that the MPLS PW can be kept in-order (although >>you have been arguing against using the serial number in your last few >>emails) >>- a non-IP first nibble and a zero TTL in the CW (assuming that a >>serial number is not used) to "poison the stack" in case there's a >>provisioning problem >> >>So it really comes down to having the "poison" in the stack in the >>unlikely case of a provisioning mismatch in an endpoint switch. I'm >>still not convinced that it's worth the cost, although I >could possibly >>still be convinced. Are there any other advantages that I've missed? >> >>Cheers, >>Andy >> >>-----Original Message----- >>From: mpls-interop-bounces@ietf.org >>[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>Sent: Monday, January 26, 2009 11:26 AM >>To: Drake, John E >>Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >>John >>> >>> JD: *Requiring* a PW header in order to transport an MPLS payload >>over >>> an MPLS LSP strikes me as an IQ test that one has failed. >> >>I always fail those - I take it to indicate a faulty test methodology >>:) >> >>The CW will poison the packet anywhere other than where a CW is >>expected. >> >>Stewart >>_______________________________________________ >>Mpls-interop mailing list >>Mpls-interop@ietf.org >>https://www.ietf.org/mailman/listinfo/mpls-interop >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 09:48:22 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 993DB28C19E; Mon, 26 Jan 2009 09:48:22 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5CF1928C226 for ; Mon, 26 Jan 2009 09:48:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8o6rVwz9H8OY for ; Mon, 26 Jan 2009 09:48:21 -0800 (PST) Received: from rtp-iport-1.cisco.com (rtp-iport-1.cisco.com [64.102.122.148]) by core3.amsl.com (Postfix) with ESMTP id E63B128C19E for ; Mon, 26 Jan 2009 09:48:20 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,326,1231113600"; d="scan'208";a="34901230" Received: from rtp-dkim-2.cisco.com ([64.102.121.159]) by rtp-iport-1.cisco.com with ESMTP; 26 Jan 2009 17:48:03 +0000 Received: from rtp-core-2.cisco.com (rtp-core-2.cisco.com [64.102.124.13]) by rtp-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0QHm30m018999; Mon, 26 Jan 2009 12:48:03 -0500 Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by rtp-core-2.cisco.com (8.13.8/8.13.8) with ESMTP id n0QHm3IW012755; Mon, 26 Jan 2009 17:48:03 GMT Received: from xmb-rtp-206.amer.cisco.com ([64.102.31.32]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 26 Jan 2009 12:48:02 -0500 Received: from 10.98.32.163 ([10.98.32.163]) by xmb-rtp-206.amer.cisco.com ([64.102.31.32]) with Microsoft Exchange Server HTTP-DAV ; Mon, 26 Jan 2009 17:48:02 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Mon, 26 Jan 2009 12:48:01 -0500 From: George Swallow To: "Malis, Andrew G. (Andy)" , "Drake, John E" , Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfj In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97365A409@FHDP1LUMXCV24.us.one.verizon.com> Mime-version: 1.0 X-OriginalArrivalTime: 26 Jan 2009 17:48:02.0939 (UTC) FILETIME=[3C637CB0:01C97FDE] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=4431; t=1232992083; x=1233856083; c=relaxed/simple; s=rtpdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=swallow@cisco.com; z=From:=20George=20Swallow=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20 |To:=20=22Malis,=20Andrew=20G.=20(Andy)=22=20,=0A=20=20=20=20=20=20=20=20=22Drake,=20John=2 0E=22=20,=20; bh=CKVh2rsVqVbpEGYHI+4b/5cB3Iscr6WtVdjqmnQ2SWs=; b=nEpN/uO9lDVDCTOU2bJ8s0QB/cFpf8hKnlAdan047L/A07rAsWYkcWo7+o kRzqW2NqhHdfXUK/Ufcmrp8FprlDNYL6ERVFI5/QcGX6xfO8injKjZn3aQXY NTaR1ZsuFE; Authentication-Results: rtp-dkim-2; header.From=swallow@cisco.com; dkim=pass ( sig from cisco.com/rtpdkim2001 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. However if you want to run MPLS as it currently exists in 10s of thousands of devices, then you need a PW that can carry IP as well as all the control and OAM depends on it. So whatever solution we get to needs to carry both MPLS and IP. And if that is the case then relying on EOS is a non-starter. ...George On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" wrote: > John, > > This would be for an MPLS PW, which we have not yet defined (a new MPLS > PW draft would be required). Thus, we are free to make up the rules. > > Note that I'm still pretty much in agreement that we don't need an MPLS > PW to run MPLS over MPLS-TP (I'm still awaiting further arguments from > Stewart or anyone else that wants to argue in favor of using a PW). > > However, I do think that we would need an MPLS-TP PW if we wanted to run > MPLS-TP over MPLS (that came up last week as well). The primary issue > here is that MPLS-TP over MPLS would require in-order delivery, so it > has to avoid ECMP. > > Cheers, > Andy > > -----Original Message----- > From: Drake, John E [mailto:John.E.Drake2@boeing.com] > Sent: Monday, January 26, 2009 11:54 AM > To: Malis, Andrew G. (Andy); stbryant@cisco.com > Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > Andy, > > Per RFC 4448, the control word is optional for Ethernet PWs, so its > presence cannot be counted on. If it is present, the sequence number > field may be used so that the bottom sixteen bits may not be zero. > > Given that we are talking about a rogue implementation that does not > respect the 'end of stack' bit, I don't see much utility. > > Thanks, > > John > >> -----Original Message----- >> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >> Sent: Monday, January 26, 2009 8:42 AM >> To: stbryant@cisco.com; Drake, John E >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Stewart, >> >> Boy, talk about dredging up old emails ... >> >> I've been thinking some more about this issue since our >> discussion last week in Ipswich. The question I asked there >> was whether what we gain from putting a PW label and CW in the >> stack to separate the MPLS-TP stack and the MPLS stack are >> worth the cost: >> >> - 64 additional bits in the packet header (obviously) >> - LDP signaling between the PW endpoints to distribute the PW label >> >> As I see it, what we gain is: >> >> - a clear demark (although you would get that as well with the S bit) >> - a serial number so that the MPLS PW can be kept in-order >> (although you have been arguing against using the serial >> number in your last few >> emails) >> - a non-IP first nibble and a zero TTL in the CW (assuming >> that a serial number is not used) to "poison the stack" in >> case there's a provisioning problem >> >> So it really comes down to having the "poison" in the stack in >> the unlikely case of a provisioning mismatch in an endpoint >> switch. I'm still not convinced that it's worth the cost, >> although I could possibly still be convinced. Are there any >> other advantages that I've missed? >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: mpls-interop-bounces@ietf.org >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >> Sent: Monday, January 26, 2009 11:26 AM >> To: Drake, John E >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> John >>> >>> JD: *Requiring* a PW header in order to transport an MPLS payload >> over >>> an MPLS LSP strikes me as an IQ test that one has failed. >> >> I always fail those - I take it to indicate a faulty test >> methodology :) >> >> The CW will poison the packet anywhere other than where a CW >> is expected. >> >> Stewart >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop >> > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 09:56:54 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C70553A67AC; Mon, 26 Jan 2009 09:56:54 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 24C6D3A6880 for ; Mon, 26 Jan 2009 09:56:54 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.566 X-Spam-Level: X-Spam-Status: No, score=-6.566 tagged_above=-999 required=5 tests=[AWL=0.033, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id f6FvjMZLPg23 for ; Mon, 26 Jan 2009 09:56:52 -0800 (PST) Received: from stl-smtpout-01.boeing.com (stl-smtpout-01.boeing.com [130.76.96.56]) by core3.amsl.com (Postfix) with ESMTP id A17CD3A67AC for ; Mon, 26 Jan 2009 09:56:52 -0800 (PST) Received: from stl-av-01.boeing.com (stl-av-01.boeing.com [192.76.190.6]) by stl-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0QHuPeo006309 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 26 Jan 2009 11:56:25 -0600 (CST) Received: from stl-av-01.boeing.com (localhost [127.0.0.1]) by stl-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0QHuPjB011126; Mon, 26 Jan 2009 11:56:25 -0600 (CST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by stl-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0QHuNIQ011095; Mon, 26 Jan 2009 11:56:25 -0600 (CST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 09:56:24 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 09:56:23 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016704D7@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAns0A= References: <01F652C8CDBE7D4EB7ED860698C6D97365A409@FHDP1LUMXCV24.us.one.verizon.com> From: "Drake, John E" To: "George Swallow" , "Malis, Andrew G. (Andy)" , X-OriginalArrivalTime: 26 Jan 2009 17:56:24.0903 (UTC) FILETIME=[67951D70:01C97FDF] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org George, Are we not okay as long as we ensure that the first nibble of *any* client MPLS label does not have the values '0', '1', '4' or '6'? Or better yet, define a new value that indicates 'payload is MPLS'? Thanks, John >-----Original Message----- >From: George Swallow [mailto:swallow@cisco.com] >Sent: Monday, January 26, 2009 9:48 AM >To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >An MPLS PW is fine if you want to run MPLS-TP over MPLS or >MPLS-TP. However if you want to run MPLS as it currently >exists in 10s of thousands of devices, then you need a PW >that can carry IP as well as all the control and OAM depends on it. > >So whatever solution we get to needs to carry both MPLS and >IP. And if that is the case then relying on EOS is a non-starter. > >...George > > >On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" > >wrote: > >> John, >> >> This would be for an MPLS PW, which we have not yet defined (a new >> MPLS PW draft would be required). Thus, we are free to make >up the rules. >> >> Note that I'm still pretty much in agreement that we don't need an >> MPLS PW to run MPLS over MPLS-TP (I'm still awaiting further >arguments >> from Stewart or anyone else that wants to argue in favor of >using a PW). >> >> However, I do think that we would need an MPLS-TP PW if we wanted to >> run MPLS-TP over MPLS (that came up last week as well). The primary >> issue here is that MPLS-TP over MPLS would require in-order >delivery, >> so it has to avoid ECMP. >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >> Sent: Monday, January 26, 2009 11:54 AM >> To: Malis, Andrew G. (Andy); stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Andy, >> >> Per RFC 4448, the control word is optional for Ethernet PWs, so its >> presence cannot be counted on. If it is present, the >sequence number >> field may be used so that the bottom sixteen bits may not be zero. >> >> Given that we are talking about a rogue implementation that does not >> respect the 'end of stack' bit, I don't see much utility. >> >> Thanks, >> >> John >> >>> -----Original Message----- >>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>> Sent: Monday, January 26, 2009 8:42 AM >>> To: stbryant@cisco.com; Drake, John E >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>> >>> Stewart, >>> >>> Boy, talk about dredging up old emails ... >>> >>> I've been thinking some more about this issue since our discussion >>> last week in Ipswich. The question I asked there was >whether what we >>> gain from putting a PW label and CW in the stack to separate the >>> MPLS-TP stack and the MPLS stack are worth the cost: >>> >>> - 64 additional bits in the packet header (obviously) >>> - LDP signaling between the PW endpoints to distribute the PW label >>> >>> As I see it, what we gain is: >>> >>> - a clear demark (although you would get that as well with >the S bit) >>> - a serial number so that the MPLS PW can be kept in-order >(although >>> you have been arguing against using the serial number in your last >>> few >>> emails) >>> - a non-IP first nibble and a zero TTL in the CW (assuming that a >>> serial number is not used) to "poison the stack" in case there's a >>> provisioning problem >>> >>> So it really comes down to having the "poison" in the stack in the >>> unlikely case of a provisioning mismatch in an endpoint switch. I'm >>> still not convinced that it's worth the cost, although I could >>> possibly still be convinced. Are there any other advantages >that I've >>> missed? >>> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: mpls-interop-bounces@ietf.org >>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>> Sent: Monday, January 26, 2009 11:26 AM >>> To: Drake, John E >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> John >>>> >>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>> over >>>> an MPLS LSP strikes me as an IQ test that one has failed. >>> >>> I always fail those - I take it to indicate a faulty test >methodology >>> :) >>> >>> The CW will poison the packet anywhere other than where a CW is >>> expected. >>> >>> Stewart >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 10:04:35 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id EE18A3A67AC; Mon, 26 Jan 2009 10:04:35 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8D98128C21C for ; Mon, 26 Jan 2009 10:04:35 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pmdV4kuKYNps for ; Mon, 26 Jan 2009 10:04:34 -0800 (PST) Received: from sj-iport-6.cisco.com (sj-iport-6.cisco.com [171.71.176.117]) by core3.amsl.com (Postfix) with ESMTP id 3240A3A67AC for ; Mon, 26 Jan 2009 10:04:34 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,326,1231113600"; d="scan'208";a="236872746" Received: from sj-dkim-1.cisco.com ([171.71.179.21]) by sj-iport-6.cisco.com with ESMTP; 26 Jan 2009 18:04:15 +0000 Received: from sj-core-1.cisco.com (sj-core-1.cisco.com [171.71.177.237]) by sj-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id n0QI4Fhh022882; Mon, 26 Jan 2009 10:04:15 -0800 Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by sj-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0QI4DAa023811; Mon, 26 Jan 2009 18:04:15 GMT Received: from xmb-rtp-206.amer.cisco.com ([64.102.31.32]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 26 Jan 2009 13:04:13 -0500 Received: from 10.98.32.163 ([10.98.32.163]) by xmb-rtp-206.amer.cisco.com ([64.102.31.32]) with Microsoft Exchange Server HTTP-DAV ; Mon, 26 Jan 2009 18:04:13 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Mon, 26 Jan 2009 13:04:12 -0500 From: George Swallow To: "Drake, John E" , "Malis, Andrew G. (Andy)" , Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAns0AAAGj+fA== In-Reply-To: <51661468CBD1354294533DA79E85955A016704D7@XCH-SW-5V2.sw.nos.boeing.com> Mime-version: 1.0 X-OriginalArrivalTime: 26 Jan 2009 18:04:13.0720 (UTC) FILETIME=[7F04E980:01C97FE0] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=5842; t=1232993055; x=1233857055; c=relaxed/simple; s=sjdkim1004; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=swallow@cisco.com; z=From:=20George=20Swallow=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=gFHammcB5+Cb6a7+rmWjtqzf7ze8Hm1dff9Vvz5a1BM=; b=rUf4x/wktF5QHhpGbFE+1uoyMa78dqp3YxxBvRJC9w55T7xBXc8hY2f/HT UM99OHPpJpaSj+APiUQfW9wqzqr4FB/scJxPE+2hdL4m/y3yjViyYelI+JLw jrW2Uad+z9On5eIHwxjlp8YGpIbCdbBCs93P59BRdgLey6uUHoMjI=; Authentication-Results: sj-dkim-1; header.From=swallow@cisco.com; dkim=pass ( sig from cisco.com/sjdkim1004 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Several points here. First the reserve values you speak of are all reserved in the IP Protocol number space. I do not believe that the powers that be will be very please with a proposal that says that we will use values that they may later define as a new IP version. Second, the we're okay happens only if I filter on the labels that the client sends me. I don't like the "better yet" as I want IP as well as MPLS. ...George On 1/26/09 12:56 PM, "Drake, John E" wrote: > George, > > Are we not okay as long as we ensure that the first nibble of *any* > client MPLS label does not have the values '0', '1', '4' or '6'? Or > better yet, define a new value that indicates 'payload is MPLS'? > > Thanks, > > John > >> -----Original Message----- >> From: George Swallow [mailto:swallow@cisco.com] >> Sent: Monday, January 26, 2009 9:48 AM >> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> An MPLS PW is fine if you want to run MPLS-TP over MPLS or >> MPLS-TP. However if you want to run MPLS as it currently >> exists in 10s of thousands of devices, then you need a PW >> that can carry IP as well as all the control and OAM depends on it. >> >> So whatever solution we get to needs to carry both MPLS and >> IP. And if that is the case then relying on EOS is a non-starter. >> >> ...George >> >> >> On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" >> >> wrote: >> >>> John, >>> >>> This would be for an MPLS PW, which we have not yet defined (a new >>> MPLS PW draft would be required). Thus, we are free to make >> up the rules. >>> >>> Note that I'm still pretty much in agreement that we don't need an >>> MPLS PW to run MPLS over MPLS-TP (I'm still awaiting further >> arguments >>> from Stewart or anyone else that wants to argue in favor of >> using a PW). >>> >>> However, I do think that we would need an MPLS-TP PW if we wanted to >>> run MPLS-TP over MPLS (that came up last week as well). The primary >>> issue here is that MPLS-TP over MPLS would require in-order >> delivery, >>> so it has to avoid ECMP. >>> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >>> Sent: Monday, January 26, 2009 11:54 AM >>> To: Malis, Andrew G. (Andy); stbryant@cisco.com >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>> >>> Andy, >>> >>> Per RFC 4448, the control word is optional for Ethernet PWs, so its >>> presence cannot be counted on. If it is present, the >> sequence number >>> field may be used so that the bottom sixteen bits may not be zero. >>> >>> Given that we are talking about a rogue implementation that does not >>> respect the 'end of stack' bit, I don't see much utility. >>> >>> Thanks, >>> >>> John >>> >>>> -----Original Message----- >>>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>>> Sent: Monday, January 26, 2009 8:42 AM >>>> To: stbryant@cisco.com; Drake, John E >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Stewart, >>>> >>>> Boy, talk about dredging up old emails ... >>>> >>>> I've been thinking some more about this issue since our discussion >>>> last week in Ipswich. The question I asked there was >> whether what we >>>> gain from putting a PW label and CW in the stack to separate the >>>> MPLS-TP stack and the MPLS stack are worth the cost: >>>> >>>> - 64 additional bits in the packet header (obviously) >>>> - LDP signaling between the PW endpoints to distribute the PW label >>>> >>>> As I see it, what we gain is: >>>> >>>> - a clear demark (although you would get that as well with >> the S bit) >>>> - a serial number so that the MPLS PW can be kept in-order >> (although >>>> you have been arguing against using the serial number in your last >>>> few >>>> emails) >>>> - a non-IP first nibble and a zero TTL in the CW (assuming that a >>>> serial number is not used) to "poison the stack" in case there's a >>>> provisioning problem >>>> >>>> So it really comes down to having the "poison" in the stack in the >>>> unlikely case of a provisioning mismatch in an endpoint switch. I'm >>>> still not convinced that it's worth the cost, although I could >>>> possibly still be convinced. Are there any other advantages >> that I've >>>> missed? >>>> >>>> Cheers, >>>> Andy >>>> >>>> -----Original Message----- >>>> From: mpls-interop-bounces@ietf.org >>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>>> Sent: Monday, January 26, 2009 11:26 AM >>>> To: Drake, John E >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> John >>>>> >>>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>>> over >>>>> an MPLS LSP strikes me as an IQ test that one has failed. >>>> >>>> I always fail those - I take it to indicate a faulty test >> methodology >>>> :) >>>> >>>> The CW will poison the packet anywhere other than where a CW is >>>> expected. >>>> >>>> Stewart >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>> >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >> >> _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 10:15:46 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 59B5028C271; Mon, 26 Jan 2009 10:15:46 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id CB33228C28F for ; Mon, 26 Jan 2009 10:15:44 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.404 X-Spam-Level: X-Spam-Status: No, score=-2.404 tagged_above=-999 required=5 tests=[AWL=0.195, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 29WmKgfxJQJu for ; Mon, 26 Jan 2009 10:15:43 -0800 (PST) Received: from irvmail2.verizon.com (irvmail2.verizon.com [192.76.80.130]) by core3.amsl.com (Postfix) with ESMTP id A9F9B28C28E for ; Mon, 26 Jan 2009 10:15:43 -0800 (PST) Received: from smtpftw3.verizon.com (smtpftw3.verizon.com [138.83.140.92]) by irvmail2.verizon.com (8.13.3/8.13.3) with ESMTP id n0QIFHDW007724; Mon, 26 Jan 2009 12:15:17 -0600 (CST) Received: from tpaintrmemf3.verizon.com (tpaintrmemf3.verizon.com [138.83.67.58]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0QIFH5O012017; Mon, 26 Jan 2009 13:15:17 -0500 (EST) Received: from tpaintrmemf3.verizon.com (unknown [127.0.0.1]) by tpaintrmemf3.verizon.com (Symantec Mail Security) with ESMTP id AE3A8528003; Mon, 26 Jan 2009 13:15:16 -0500 (EST) X-AuditID: 8a53433a-aabdbbb000000647-25-497dfdb4398b Received: from smtpftw3.verizon.com (unknown [138.83.140.92]) by tpaintrmemf3.verizon.com (EMF) with ESMTP id 7D87B4E4004; Mon, 26 Jan 2009 13:15:16 -0500 (EST) Received: from FHDP1CCMXCG01.us.one.verizon.com ([166.68.240.33]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0QIF82P011851; Mon, 26 Jan 2009 13:15:16 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG01.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 13:15:16 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 13:14:43 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D97365A434@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAYoxA= References: <01F652C8CDBE7D4EB7ED860698C6D97365A409@FHDP1LUMXCV24.us.one.verizon.com> From: "Malis, Andrew G. (Andy)" To: "George Swallow" , "Drake, John E" , X-OriginalArrivalTime: 26 Jan 2009 18:15:16.0180 (UTC) FILETIME=[09E04940:01C97FE2] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org George, I think a picture may help here. This is the reference model that I have in mind. This is a traditional MPLS network that we operate now: CE - PE - P(*) - PE -CE Where P(*) is zero or more core provider routers. With MPLS-TP, this picture changes to either of the following (where T(*) is zero or more core MPLS-TP transport switches and TE is an edge MPLS-TP transport switch): CE - PE - P - TE - T(*) - TE - P - PE - CE - or - CE - PE - TE - T(*) - TE - PE - CE In either case, a T-T, T-TE, or TE-TE trunk uses an MPLS-TP label stack, and the P-TE or PE-TE interfaces have MPLS on them, to be encapsulated within MPLS-TP, so that MPLS-TP can transparently transport the MPLS packets between the P or PE routers. If we're all in agreement here on this model, then when you talk about running MPLS as it currently exists, I don't think that's an issue, since a T and TE are devices that don't yet exist in the marketplace, and thus we are free to define their behavior, as long as that behavior meets the MPLS-TP requirements draft. Cheers, Andy -----Original Message----- From: George Swallow [mailto:swallow@cisco.com] Sent: Monday, January 26, 2009 12:48 PM To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. However if you want to run MPLS as it currently exists in 10s of thousands of devices, then you need a PW that can carry IP as well as all the control and OAM depends on it. So whatever solution we get to needs to carry both MPLS and IP. And if that is the case then relying on EOS is a non-starter. ...George On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" wrote: > John, > > This would be for an MPLS PW, which we have not yet defined (a new MPLS > PW draft would be required). Thus, we are free to make up the rules. > > Note that I'm still pretty much in agreement that we don't need an MPLS > PW to run MPLS over MPLS-TP (I'm still awaiting further arguments from > Stewart or anyone else that wants to argue in favor of using a PW). > > However, I do think that we would need an MPLS-TP PW if we wanted to run > MPLS-TP over MPLS (that came up last week as well). The primary issue > here is that MPLS-TP over MPLS would require in-order delivery, so it > has to avoid ECMP. > > Cheers, > Andy > > -----Original Message----- > From: Drake, John E [mailto:John.E.Drake2@boeing.com] > Sent: Monday, January 26, 2009 11:54 AM > To: Malis, Andrew G. (Andy); stbryant@cisco.com > Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > Andy, > > Per RFC 4448, the control word is optional for Ethernet PWs, so its > presence cannot be counted on. If it is present, the sequence number > field may be used so that the bottom sixteen bits may not be zero. > > Given that we are talking about a rogue implementation that does not > respect the 'end of stack' bit, I don't see much utility. > > Thanks, > > John > >> -----Original Message----- >> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >> Sent: Monday, January 26, 2009 8:42 AM >> To: stbryant@cisco.com; Drake, John E >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Stewart, >> >> Boy, talk about dredging up old emails ... >> >> I've been thinking some more about this issue since our >> discussion last week in Ipswich. The question I asked there >> was whether what we gain from putting a PW label and CW in the >> stack to separate the MPLS-TP stack and the MPLS stack are >> worth the cost: >> >> - 64 additional bits in the packet header (obviously) >> - LDP signaling between the PW endpoints to distribute the PW label >> >> As I see it, what we gain is: >> >> - a clear demark (although you would get that as well with the S bit) >> - a serial number so that the MPLS PW can be kept in-order >> (although you have been arguing against using the serial >> number in your last few >> emails) >> - a non-IP first nibble and a zero TTL in the CW (assuming >> that a serial number is not used) to "poison the stack" in >> case there's a provisioning problem >> >> So it really comes down to having the "poison" in the stack in >> the unlikely case of a provisioning mismatch in an endpoint >> switch. I'm still not convinced that it's worth the cost, >> although I could possibly still be convinced. Are there any >> other advantages that I've missed? >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: mpls-interop-bounces@ietf.org >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >> Sent: Monday, January 26, 2009 11:26 AM >> To: Drake, John E >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> John >>> >>> JD: *Requiring* a PW header in order to transport an MPLS payload >> over >>> an MPLS LSP strikes me as an IQ test that one has failed. >> >> I always fail those - I take it to indicate a faulty test >> methodology :) >> >> The CW will poison the packet anywhere other than where a CW >> is expected. >> >> Stewart >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop >> > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 10:16:13 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D9AF128C266; Mon, 26 Jan 2009 10:16:13 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 79D0528C28F for ; Mon, 26 Jan 2009 10:16:13 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.567 X-Spam-Level: X-Spam-Status: No, score=-6.567 tagged_above=-999 required=5 tests=[AWL=0.032, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gl4ZrY7xyUZm for ; Mon, 26 Jan 2009 10:16:12 -0800 (PST) Received: from slb-smtpout-01.boeing.com (slb-smtpout-01.boeing.com [130.76.64.48]) by core3.amsl.com (Postfix) with ESMTP id 4292928C266 for ; Mon, 26 Jan 2009 10:16:10 -0800 (PST) Received: from stl-av-01.boeing.com (stl-av-01.boeing.com [192.76.190.6]) by slb-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0QIFnHb008325 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 26 Jan 2009 10:15:49 -0800 (PST) Received: from stl-av-01.boeing.com (localhost [127.0.0.1]) by stl-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0QIFmjG019778; Mon, 26 Jan 2009 12:15:49 -0600 (CST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by stl-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0QIFj7Q019651; Mon, 26 Jan 2009 12:15:48 -0600 (CST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 10:15:47 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 10:15:45 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016704FB@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAns0AAAGj+fAAADo4g References: <51661468CBD1354294533DA79E85955A016704D7@XCH-SW-5V2.sw.nos.boeing.com> From: "Drake, John E" To: "George Swallow" , "Malis, Andrew G. (Andy)" , X-OriginalArrivalTime: 26 Jan 2009 18:15:47.0246 (UTC) FILETIME=[1C6494E0:01C97FE2] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org >-----Original Message----- >From: George Swallow [mailto:swallow@cisco.com] >Sent: Monday, January 26, 2009 10:04 AM >To: Drake, John E; Malis, Andrew G. (Andy); stbryant@cisco.com >Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Several points here. > >First the reserve values you speak of are all reserved in the >IP Protocol number space. I do not believe that the powers >that be will be very please with a proposal that says that we >will use values that they may later define as a new IP version. JD: Then how was PW able to get the values '0' and '1'? > >Second, the we're okay happens only if I filter on the labels >that the client sends me. JD: Who is 'I' and who is 'client'? The endpoints will understand the labels they have allocated, and it keeps intermediate nodes from performing ECMP on MPLS payloads. > >I don't like the "better yet" as I want IP as well as MPLS. JD: If one takes the position that MPLS is part of IP, then allocating a nibble value to MPLS makes sense to me. It also addresses the issue you raised in your first paragraph, above, as well as your point about running IP and MPLS (and PW) over the same SP MPLS LSP. > >...George > > >On 1/26/09 12:56 PM, "Drake, John E" wrote: > >> George, >> >> Are we not okay as long as we ensure that the first nibble of *any* >> client MPLS label does not have the values '0', '1', '4' or '6'? Or >> better yet, define a new value that indicates 'payload is MPLS'? >> >> Thanks, >> >> John >> >>> -----Original Message----- >>> From: George Swallow [mailto:swallow@cisco.com] >>> Sent: Monday, January 26, 2009 9:48 AM >>> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >>> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod >HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> An MPLS PW is fine if you want to run MPLS-TP over MPLS or >MPLS-TP. >>> However if you want to run MPLS as it currently exists in 10s of >>> thousands of devices, then you need a PW that can carry IP as well >>> as all the control and OAM depends on it. >>> >>> So whatever solution we get to needs to carry both MPLS and >IP. And >>> if that is the case then relying on EOS is a non-starter. >>> >>> ...George >>> >>> >>> On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" >>> >>> wrote: >>> >>>> John, >>>> >>>> This would be for an MPLS PW, which we have not yet defined (a new >>>> MPLS PW draft would be required). Thus, we are free to make >>> up the rules. >>>> >>>> Note that I'm still pretty much in agreement that we don't need an >>>> MPLS PW to run MPLS over MPLS-TP (I'm still awaiting further >>> arguments >>>> from Stewart or anyone else that wants to argue in favor of >>> using a PW). >>>> >>>> However, I do think that we would need an MPLS-TP PW if we >wanted to >>>> run MPLS-TP over MPLS (that came up last week as well). >The primary >>>> issue here is that MPLS-TP over MPLS would require in-order >>> delivery, >>>> so it has to avoid ECMP. >>>> >>>> Cheers, >>>> Andy >>>> >>>> -----Original Message----- >>>> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >>>> Sent: Monday, January 26, 2009 11:54 AM >>>> To: Malis, Andrew G. (Andy); stbryant@cisco.com >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod >HaSharon) >>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Andy, >>>> >>>> Per RFC 4448, the control word is optional for Ethernet >PWs, so its >>>> presence cannot be counted on. If it is present, the >>> sequence number >>>> field may be used so that the bottom sixteen bits may not be zero. >>>> >>>> Given that we are talking about a rogue implementation >that does not >>>> respect the 'end of stack' bit, I don't see much utility. >>>> >>>> Thanks, >>>> >>>> John >>>> >>>>> -----Original Message----- >>>>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>>>> Sent: Monday, January 26, 2009 8:42 AM >>>>> To: stbryant@cisco.com; Drake, John E >>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod >>>>> HaSharon) >>>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> Stewart, >>>>> >>>>> Boy, talk about dredging up old emails ... >>>>> >>>>> I've been thinking some more about this issue since our >discussion >>>>> last week in Ipswich. The question I asked there was >>> whether what we >>>>> gain from putting a PW label and CW in the stack to separate the >>>>> MPLS-TP stack and the MPLS stack are worth the cost: >>>>> >>>>> - 64 additional bits in the packet header (obviously) >>>>> - LDP signaling between the PW endpoints to distribute >the PW label >>>>> >>>>> As I see it, what we gain is: >>>>> >>>>> - a clear demark (although you would get that as well with >>> the S bit) >>>>> - a serial number so that the MPLS PW can be kept in-order >>> (although >>>>> you have been arguing against using the serial number in >your last >>>>> few >>>>> emails) >>>>> - a non-IP first nibble and a zero TTL in the CW (assuming that a >>>>> serial number is not used) to "poison the stack" in case >there's a >>>>> provisioning problem >>>>> >>>>> So it really comes down to having the "poison" in the >stack in the >>>>> unlikely case of a provisioning mismatch in an endpoint >switch. I'm >>>>> still not convinced that it's worth the cost, although I could >>>>> possibly still be convinced. Are there any other advantages >>> that I've >>>>> missed? >>>>> >>>>> Cheers, >>>>> Andy >>>>> >>>>> -----Original Message----- >>>>> From: mpls-interop-bounces@ietf.org >>>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>>>> Sent: Monday, January 26, 2009 11:26 AM >>>>> To: Drake, John E >>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod >>>>> HaSharon) >>>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> John >>>>>> >>>>>> JD: *Requiring* a PW header in order to transport an >MPLS payload >>>>> over >>>>>> an MPLS LSP strikes me as an IQ test that one has failed. >>>>> >>>>> I always fail those - I take it to indicate a faulty test >>> methodology >>>>> :) >>>>> >>>>> The CW will poison the packet anywhere other than where a CW is >>>>> expected. >>>>> >>>>> Stewart >>>>> _______________________________________________ >>>>> Mpls-interop mailing list >>>>> Mpls-interop@ietf.org >>>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>>> >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >>> > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 11:37:55 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D0DE53A687C; Mon, 26 Jan 2009 11:37:55 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 78E9A3A690E for ; Mon, 26 Jan 2009 11:37:54 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[AWL=0.000, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LOVPwVO9qSFr for ; Mon, 26 Jan 2009 11:37:53 -0800 (PST) Received: from rtp-iport-1.cisco.com (rtp-iport-1.cisco.com [64.102.122.148]) by core3.amsl.com (Postfix) with ESMTP id 179DE3A687C for ; Mon, 26 Jan 2009 11:37:53 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,327,1231113600"; d="scan'208";a="34915521" Received: from rtp-dkim-2.cisco.com ([64.102.121.159]) by rtp-iport-1.cisco.com with ESMTP; 26 Jan 2009 19:37:35 +0000 Received: from rtp-core-2.cisco.com (rtp-core-2.cisco.com [64.102.124.13]) by rtp-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0QJbY0h016496; Mon, 26 Jan 2009 14:37:34 -0500 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-2.cisco.com (8.13.8/8.13.8) with ESMTP id n0QJbYaN024333; Mon, 26 Jan 2009 19:37:34 GMT Received: from xmb-rtp-206.amer.cisco.com ([64.102.31.32]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 26 Jan 2009 14:37:34 -0500 Received: from 10.98.32.163 ([10.98.32.163]) by xmb-rtp-206.amer.cisco.com ([64.102.31.32]) with Microsoft Exchange Server HTTP-DAV ; Mon, 26 Jan 2009 19:37:11 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Mon, 26 Jan 2009 14:37:11 -0500 From: George Swallow To: "Malis, Andrew G. (Andy)" , "Drake, John E" , Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAYoxAAA7dk9g== In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97365A434@FHDP1LUMXCV24.us.one.verizon.com> Mime-version: 1.0 X-OriginalArrivalTime: 26 Jan 2009 19:37:34.0309 (UTC) FILETIME=[893AF950:01C97FED] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=6275; t=1232998654; x=1233862654; c=relaxed/simple; s=rtpdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=swallow@cisco.com; z=From:=20George=20Swallow=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20 |To:=20=22Malis,=20Andrew=20G.=20(Andy)=22=20,=0A=20=20=20=20=20=20=20=20=22Drake,=20John=2 0E=22=20,=20; bh=SW4a4ARcwNptfOmZm1DE22BZtGXnsE9E7p8SaYJA82A=; b=uU4r52QnPQovmyHibpkDUQR+i5FTQY+hKFFOXPWz44H+uk5x1DSd260GwP 3UPAVPOuTfowzGbhKtrRqy5JSBCJbLpgPikwHUh+zXJxXbUr9VYDnfpOTY9k +2asj5yzaS; Authentication-Results: rtp-dkim-2; header.From=swallow@cisco.com; dkim=pass ( sig from cisco.com/rtpdkim2001 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org I don't understand the picture. What is the link between the P(E) device and the TE device? ...George On 1/26/09 1:14 PM, "Malis, Andrew G. (Andy)" wrote: > George, > > I think a picture may help here. This is the reference model that I have > in mind. > > This is a traditional MPLS network that we operate now: > > CE - PE - P(*) - PE -CE > > Where P(*) is zero or more core provider routers. > > With MPLS-TP, this picture changes to either of the following (where > T(*) is zero or more core MPLS-TP transport switches and TE is an edge > MPLS-TP transport switch): > > CE - PE - P - TE - T(*) - TE - P - PE - CE > > - or - > > CE - PE - TE - T(*) - TE - PE - CE > > In either case, a T-T, T-TE, or TE-TE trunk uses an MPLS-TP label stack, > and the P-TE or PE-TE interfaces have MPLS on them, to be encapsulated > within MPLS-TP, so that MPLS-TP can transparently transport the MPLS > packets between the P or PE routers. > > If we're all in agreement here on this model, then when you talk about > running MPLS as it currently exists, I don't think that's an issue, > since a T and TE are devices that don't yet exist in the marketplace, > and thus we are free to define their behavior, as long as that behavior > meets the MPLS-TP requirements draft. > > Cheers, > Andy > > -----Original Message----- > From: George Swallow [mailto:swallow@cisco.com] > Sent: Monday, January 26, 2009 12:48 PM > To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com > Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. > However > if you want to run MPLS as it currently exists in 10s of thousands of > devices, then you need a PW that can carry IP as well as all the > control > and OAM depends on it. > > So whatever solution we get to needs to carry both MPLS and IP. And if > that > is the case then relying on EOS is a non-starter. > > ...George > > > On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" > > wrote: > >> John, >> >> This would be for an MPLS PW, which we have not yet defined (a new > MPLS >> PW draft would be required). Thus, we are free to make up the rules. >> >> Note that I'm still pretty much in agreement that we don't need an > MPLS >> PW to run MPLS over MPLS-TP (I'm still awaiting further arguments from >> Stewart or anyone else that wants to argue in favor of using a PW). >> >> However, I do think that we would need an MPLS-TP PW if we wanted to > run >> MPLS-TP over MPLS (that came up last week as well). The primary issue >> here is that MPLS-TP over MPLS would require in-order delivery, so it >> has to avoid ECMP. >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >> Sent: Monday, January 26, 2009 11:54 AM >> To: Malis, Andrew G. (Andy); stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Andy, >> >> Per RFC 4448, the control word is optional for Ethernet PWs, so its >> presence cannot be counted on. If it is present, the sequence number >> field may be used so that the bottom sixteen bits may not be zero. >> >> Given that we are talking about a rogue implementation that does not >> respect the 'end of stack' bit, I don't see much utility. >> >> Thanks, >> >> John >> >>> -----Original Message----- >>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>> Sent: Monday, January 26, 2009 8:42 AM >>> To: stbryant@cisco.com; Drake, John E >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>> >>> Stewart, >>> >>> Boy, talk about dredging up old emails ... >>> >>> I've been thinking some more about this issue since our >>> discussion last week in Ipswich. The question I asked there >>> was whether what we gain from putting a PW label and CW in the >>> stack to separate the MPLS-TP stack and the MPLS stack are >>> worth the cost: >>> >>> - 64 additional bits in the packet header (obviously) >>> - LDP signaling between the PW endpoints to distribute the PW label >>> >>> As I see it, what we gain is: >>> >>> - a clear demark (although you would get that as well with the S bit) >>> - a serial number so that the MPLS PW can be kept in-order >>> (although you have been arguing against using the serial >>> number in your last few >>> emails) >>> - a non-IP first nibble and a zero TTL in the CW (assuming >>> that a serial number is not used) to "poison the stack" in >>> case there's a provisioning problem >>> >>> So it really comes down to having the "poison" in the stack in >>> the unlikely case of a provisioning mismatch in an endpoint >>> switch. I'm still not convinced that it's worth the cost, >>> although I could possibly still be convinced. Are there any >>> other advantages that I've missed? >>> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: mpls-interop-bounces@ietf.org >>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>> Sent: Monday, January 26, 2009 11:26 AM >>> To: Drake, John E >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> John >>>> >>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>> over >>>> an MPLS LSP strikes me as an IQ test that one has failed. >>> >>> I always fail those - I take it to indicate a faulty test >>> methodology :) >>> >>> The CW will poison the packet anywhere other than where a CW >>> is expected. >>> >>> Stewart >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 11:46:16 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 195393A6A55; Mon, 26 Jan 2009 11:46:16 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id DE8633A6A55 for ; Mon, 26 Jan 2009 11:46:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rVG7eNU09l4C for ; Mon, 26 Jan 2009 11:46:13 -0800 (PST) Received: from rtp-iport-2.cisco.com (rtp-iport-2.cisco.com [64.102.122.149]) by core3.amsl.com (Postfix) with ESMTP id 2D73D3A687C for ; Mon, 26 Jan 2009 11:46:13 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,327,1231113600"; d="scan'208";a="34878980" Received: from rtp-dkim-1.cisco.com ([64.102.121.158]) by rtp-iport-2.cisco.com with ESMTP; 26 Jan 2009 19:45:55 +0000 Received: from rtp-core-2.cisco.com (rtp-core-2.cisco.com [64.102.124.13]) by rtp-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id n0QJjtkI002380; Mon, 26 Jan 2009 14:45:55 -0500 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-2.cisco.com (8.13.8/8.13.8) with ESMTP id n0QJjte2027724; Mon, 26 Jan 2009 19:45:55 GMT Received: from xmb-rtp-206.amer.cisco.com ([64.102.31.32]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 26 Jan 2009 14:45:55 -0500 Received: from 10.98.32.163 ([10.98.32.163]) by xmb-rtp-206.amer.cisco.com ([64.102.31.32]) with Microsoft Exchange Server HTTP-DAV ; Mon, 26 Jan 2009 19:45:02 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Mon, 26 Jan 2009 14:45:01 -0500 From: George Swallow To: "Drake, John E" , "Malis, Andrew G. (Andy)" , Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAns0AAAGj+fAAADo4gAAN20Rk= In-Reply-To: <51661468CBD1354294533DA79E85955A016704FB@XCH-SW-5V2.sw.nos.boeing.com> Mime-version: 1.0 X-OriginalArrivalTime: 26 Jan 2009 19:45:55.0124 (UTC) FILETIME=[B3BD4740:01C97FEE] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=7823; t=1232999155; x=1233863155; c=relaxed/simple; s=rtpdkim1001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=swallow@cisco.com; z=From:=20George=20Swallow=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20 |To:=20=22Drake,=20John=20E=22=20 ,=0A=20=20=20=20=20=20=20=20=22Malis,=20Andrew=20G.=20(Andy) =22=20,=0A=20=20=20=20=20=20=20= 20; bh=MHUjoZ9OvWEatgSmxNRRo/zAgKYKqaftGihlaFebci4=; b=K1eHc/8u78P60Nt0haixGbKoR/09yqkRy2D7qcYdKyPM1bdNeUCHnTmqWQ 3BlENXHUBPla3MYnq5ZPaTnRpAMTIZyV++7JZpwcLuKBB4UnG24s8IohQSJZ aSnHhgji9i; Authentication-Results: rtp-dkim-1; header.From=swallow@cisco.com; dkim=pass ( sig from cisco.com/rtpdkim1001 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org On 1/26/09 1:15 PM, "Drake, John E" wrote: > > >> -----Original Message----- >> From: George Swallow [mailto:swallow@cisco.com] >> Sent: Monday, January 26, 2009 10:04 AM >> To: Drake, John E; Malis, Andrew G. (Andy); stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> Several points here. >> >> First the reserve values you speak of are all reserved in the >> IP Protocol number space. I do not believe that the powers >> that be will be very please with a proposal that says that we >> will use values that they may later define as a new IP version. > > JD: Then how was PW able to get the values '0' and '1'? We got the values reserved as part of getting the PW control word RFC approved. There is no notation that these belong to PW per se. It simply reserves them from ever being allocated. >> Second, the we're okay happens only if I filter on the labels >> that the client sends me. > > JD: Who is 'I' and who is 'client'? The endpoints will understand the > labels they have allocated, and it keeps intermediate nodes from > performing ECMP on MPLS payloads. The I is the server. If the server network wants to make sure that nothing will arrive that could be mistaken for IP or PW then it would need to filter what the client sends. Also, I should note that current implementation of Label allocators would not be happy with new restrictions on what values can be used. Nor would most of us be happy about reducing the label space by 25%. ...George >> I don't like the "better yet" as I want IP as well as MPLS. > > JD: If one takes the position that MPLS is part of IP, then allocating > a nibble value to MPLS makes sense to me. It also addresses the issue > you raised in your first paragraph, above, as well as your point about > running IP and MPLS (and PW) over the same SP MPLS LSP. > >> >> ...George >> >> >> On 1/26/09 12:56 PM, "Drake, John E" wrote: >> >>> George, >>> >>> Are we not okay as long as we ensure that the first nibble of *any* >>> client MPLS label does not have the values '0', '1', '4' or '6'? Or >>> better yet, define a new value that indicates 'payload is MPLS'? >>> >>> Thanks, >>> >>> John >>> >>>> -----Original Message----- >>>> From: George Swallow [mailto:swallow@cisco.com] >>>> Sent: Monday, January 26, 2009 9:48 AM >>>> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >>>> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod >> HaSharon) >>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> An MPLS PW is fine if you want to run MPLS-TP over MPLS or >> MPLS-TP. >>>> However if you want to run MPLS as it currently exists in 10s of >>>> thousands of devices, then you need a PW that can carry IP as well >>>> as all the control and OAM depends on it. >>>> >>>> So whatever solution we get to needs to carry both MPLS and >> IP. And >>>> if that is the case then relying on EOS is a non-starter. >>>> >>>> ...George >>>> >>>> >>>> On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" >>>> >>>> wrote: >>>> >>>>> John, >>>>> >>>>> This would be for an MPLS PW, which we have not yet defined (a new >>>>> MPLS PW draft would be required). Thus, we are free to make >>>> up the rules. >>>>> >>>>> Note that I'm still pretty much in agreement that we don't need an >>>>> MPLS PW to run MPLS over MPLS-TP (I'm still awaiting further >>>> arguments >>>>> from Stewart or anyone else that wants to argue in favor of >>>> using a PW). >>>>> >>>>> However, I do think that we would need an MPLS-TP PW if we >> wanted to >>>>> run MPLS-TP over MPLS (that came up last week as well). >> The primary >>>>> issue here is that MPLS-TP over MPLS would require in-order >>>> delivery, >>>>> so it has to avoid ECMP. >>>>> >>>>> Cheers, >>>>> Andy >>>>> >>>>> -----Original Message----- >>>>> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >>>>> Sent: Monday, January 26, 2009 11:54 AM >>>>> To: Malis, Andrew G. (Andy); stbryant@cisco.com >>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod >> HaSharon) >>>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> Andy, >>>>> >>>>> Per RFC 4448, the control word is optional for Ethernet >> PWs, so its >>>>> presence cannot be counted on. If it is present, the >>>> sequence number >>>>> field may be used so that the bottom sixteen bits may not be zero. >>>>> >>>>> Given that we are talking about a rogue implementation >> that does not >>>>> respect the 'end of stack' bit, I don't see much utility. >>>>> >>>>> Thanks, >>>>> >>>>> John >>>>> >>>>>> -----Original Message----- >>>>>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>>>>> Sent: Monday, January 26, 2009 8:42 AM >>>>>> To: stbryant@cisco.com; Drake, John E >>>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod >>>>>> HaSharon) >>>>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>>>> >>>>>> Stewart, >>>>>> >>>>>> Boy, talk about dredging up old emails ... >>>>>> >>>>>> I've been thinking some more about this issue since our >> discussion >>>>>> last week in Ipswich. The question I asked there was >>>> whether what we >>>>>> gain from putting a PW label and CW in the stack to separate the >>>>>> MPLS-TP stack and the MPLS stack are worth the cost: >>>>>> >>>>>> - 64 additional bits in the packet header (obviously) >>>>>> - LDP signaling between the PW endpoints to distribute >> the PW label >>>>>> >>>>>> As I see it, what we gain is: >>>>>> >>>>>> - a clear demark (although you would get that as well with >>>> the S bit) >>>>>> - a serial number so that the MPLS PW can be kept in-order >>>> (although >>>>>> you have been arguing against using the serial number in >> your last >>>>>> few >>>>>> emails) >>>>>> - a non-IP first nibble and a zero TTL in the CW (assuming that a >>>>>> serial number is not used) to "poison the stack" in case >> there's a >>>>>> provisioning problem >>>>>> >>>>>> So it really comes down to having the "poison" in the >> stack in the >>>>>> unlikely case of a provisioning mismatch in an endpoint >> switch. I'm >>>>>> still not convinced that it's worth the cost, although I could >>>>>> possibly still be convinced. Are there any other advantages >>>> that I've >>>>>> missed? >>>>>> >>>>>> Cheers, >>>>>> Andy >>>>>> >>>>>> -----Original Message----- >>>>>> From: mpls-interop-bounces@ietf.org >>>>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>>>>> Sent: Monday, January 26, 2009 11:26 AM >>>>>> To: Drake, John E >>>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod >>>>>> HaSharon) >>>>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>>>> >>>>>> John >>>>>>> >>>>>>> JD: *Requiring* a PW header in order to transport an >> MPLS payload >>>>>> over >>>>>>> an MPLS LSP strikes me as an IQ test that one has failed. >>>>>> >>>>>> I always fail those - I take it to indicate a faulty test >>>> methodology >>>>>> :) >>>>>> >>>>>> The CW will poison the packet anywhere other than where a CW is >>>>>> expected. >>>>>> >>>>>> Stewart >>>>>> _______________________________________________ >>>>>> Mpls-interop mailing list >>>>>> Mpls-interop@ietf.org >>>>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>>>> >>>>> _______________________________________________ >>>>> Mpls-interop mailing list >>>>> Mpls-interop@ietf.org >>>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>> >>>> >> >> _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 11:47:21 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2FA1C3A687C; Mon, 26 Jan 2009 11:47:21 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4A2EB3A69D3 for ; Mon, 26 Jan 2009 11:47:20 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.413 X-Spam-Level: X-Spam-Status: No, score=-2.413 tagged_above=-999 required=5 tests=[AWL=0.186, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HgYaokM7qojG for ; Mon, 26 Jan 2009 11:47:19 -0800 (PST) Received: from irvmail2.verizon.com (irvmail2.verizon.com [192.76.80.130]) by core3.amsl.com (Postfix) with ESMTP id 180473A687C for ; Mon, 26 Jan 2009 11:47:19 -0800 (PST) Received: from smtptpa3.verizon.com (smtptpa3.verizon.com [138.83.71.176]) by irvmail2.verizon.com (8.13.3/8.13.3) with ESMTP id n0QJkxE3022460; Mon, 26 Jan 2009 13:46:59 -0600 (CST) Received: from ftwintrmemf2.verizon.com (ftwintrmemf2.verizon.com [138.83.131.184]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0QJktgB002478; Mon, 26 Jan 2009 14:46:55 -0500 (EST) Received: from ftwintrmemf2.verizon.com (unknown [127.0.0.1]) by ftwintrmemf2.verizon.com (Symantec Mail Security) with ESMTP id 0689B528004; Mon, 26 Jan 2009 14:46:55 -0500 (EST) X-AuditID: 8a5383b8-a4ebebb000000647-fa-497e132eab66 Received: from smtptpa3.verizon.com (unknown [138.83.71.176]) by ftwintrmemf2.verizon.com (EMF) with ESMTP id CF6204E4003; Mon, 26 Jan 2009 14:46:54 -0500 (EST) Received: from FHDP1CCMXCG01.us.one.verizon.com ([166.68.240.33]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0QJko9S002220; Mon, 26 Jan 2009 14:46:54 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG01.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 26 Jan 2009 14:46:51 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 26 Jan 2009 14:46:21 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D97365A479@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAYoxAAA7dk9gAAI6bg References: <01F652C8CDBE7D4EB7ED860698C6D97365A434@FHDP1LUMXCV24.us.one.verizon.com> From: "Malis, Andrew G. (Andy)" To: "George Swallow" , "Drake, John E" , X-OriginalArrivalTime: 26 Jan 2009 19:46:51.0367 (UTC) FILETIME=[D5434770:01C97FEE] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org George, That's the client signal interface on the TE device, connected to a trunk interface on the P(E) router. It would typically have MPLS packets encapsulated over GFP if it's a physical SONET/SDH interface, over G.709 if a physical OTN interface, or over Ethernet if it a physical GE/10GE/100GE interface. Physically, it's identical to how one would interconnect routers using TDM-based transport switches. Cheers, Andy -----Original Message----- From: George Swallow [mailto:swallow@cisco.com] Sent: Monday, January 26, 2009 2:37 PM To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP I don't understand the picture. What is the link between the P(E) device and the TE device? ...George On 1/26/09 1:14 PM, "Malis, Andrew G. (Andy)" wrote: > George, > > I think a picture may help here. This is the reference model that I have > in mind. > > This is a traditional MPLS network that we operate now: > > CE - PE - P(*) - PE -CE > > Where P(*) is zero or more core provider routers. > > With MPLS-TP, this picture changes to either of the following (where > T(*) is zero or more core MPLS-TP transport switches and TE is an edge > MPLS-TP transport switch): > > CE - PE - P - TE - T(*) - TE - P - PE - CE > > - or - > > CE - PE - TE - T(*) - TE - PE - CE > > In either case, a T-T, T-TE, or TE-TE trunk uses an MPLS-TP label stack, > and the P-TE or PE-TE interfaces have MPLS on them, to be encapsulated > within MPLS-TP, so that MPLS-TP can transparently transport the MPLS > packets between the P or PE routers. > > If we're all in agreement here on this model, then when you talk about > running MPLS as it currently exists, I don't think that's an issue, > since a T and TE are devices that don't yet exist in the marketplace, > and thus we are free to define their behavior, as long as that behavior > meets the MPLS-TP requirements draft. > > Cheers, > Andy > > -----Original Message----- > From: George Swallow [mailto:swallow@cisco.com] > Sent: Monday, January 26, 2009 12:48 PM > To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com > Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. > However > if you want to run MPLS as it currently exists in 10s of thousands of > devices, then you need a PW that can carry IP as well as all the > control > and OAM depends on it. > > So whatever solution we get to needs to carry both MPLS and IP. And if > that > is the case then relying on EOS is a non-starter. > > ...George > > > On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" > > wrote: > >> John, >> >> This would be for an MPLS PW, which we have not yet defined (a new > MPLS >> PW draft would be required). Thus, we are free to make up the rules. >> >> Note that I'm still pretty much in agreement that we don't need an > MPLS >> PW to run MPLS over MPLS-TP (I'm still awaiting further arguments from >> Stewart or anyone else that wants to argue in favor of using a PW). >> >> However, I do think that we would need an MPLS-TP PW if we wanted to > run >> MPLS-TP over MPLS (that came up last week as well). The primary issue >> here is that MPLS-TP over MPLS would require in-order delivery, so it >> has to avoid ECMP. >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >> Sent: Monday, January 26, 2009 11:54 AM >> To: Malis, Andrew G. (Andy); stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Andy, >> >> Per RFC 4448, the control word is optional for Ethernet PWs, so its >> presence cannot be counted on. If it is present, the sequence number >> field may be used so that the bottom sixteen bits may not be zero. >> >> Given that we are talking about a rogue implementation that does not >> respect the 'end of stack' bit, I don't see much utility. >> >> Thanks, >> >> John >> >>> -----Original Message----- >>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>> Sent: Monday, January 26, 2009 8:42 AM >>> To: stbryant@cisco.com; Drake, John E >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>> >>> Stewart, >>> >>> Boy, talk about dredging up old emails ... >>> >>> I've been thinking some more about this issue since our >>> discussion last week in Ipswich. The question I asked there >>> was whether what we gain from putting a PW label and CW in the >>> stack to separate the MPLS-TP stack and the MPLS stack are >>> worth the cost: >>> >>> - 64 additional bits in the packet header (obviously) >>> - LDP signaling between the PW endpoints to distribute the PW label >>> >>> As I see it, what we gain is: >>> >>> - a clear demark (although you would get that as well with the S bit) >>> - a serial number so that the MPLS PW can be kept in-order >>> (although you have been arguing against using the serial >>> number in your last few >>> emails) >>> - a non-IP first nibble and a zero TTL in the CW (assuming >>> that a serial number is not used) to "poison the stack" in >>> case there's a provisioning problem >>> >>> So it really comes down to having the "poison" in the stack in >>> the unlikely case of a provisioning mismatch in an endpoint >>> switch. I'm still not convinced that it's worth the cost, >>> although I could possibly still be convinced. Are there any >>> other advantages that I've missed? >>> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: mpls-interop-bounces@ietf.org >>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>> Sent: Monday, January 26, 2009 11:26 AM >>> To: Drake, John E >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> John >>>> >>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>> over >>>> an MPLS LSP strikes me as an IQ test that one has failed. >>> >>> I always fail those - I take it to indicate a faulty test >>> methodology :) >>> >>> The CW will poison the packet anywhere other than where a CW >>> is expected. >>> >>> Stewart >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 13:27:53 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7084B3A6814; Mon, 26 Jan 2009 13:27:53 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8D2AB3A6814 for ; Mon, 26 Jan 2009 13:27:52 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YHofdVadwoKO for ; Mon, 26 Jan 2009 13:27:51 -0800 (PST) Received: from rtp-iport-2.cisco.com (rtp-iport-2.cisco.com [64.102.122.149]) by core3.amsl.com (Postfix) with ESMTP id F21203A69F1 for ; Mon, 26 Jan 2009 13:27:50 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,327,1231113600"; d="scan'208";a="34891397" Received: from rtp-dkim-2.cisco.com ([64.102.121.159]) by rtp-iport-2.cisco.com with ESMTP; 26 Jan 2009 21:27:32 +0000 Received: from rtp-core-1.cisco.com (rtp-core-1.cisco.com [64.102.124.12]) by rtp-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0QLRXbt012149; Mon, 26 Jan 2009 16:27:33 -0500 Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by rtp-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0QLRWl5011723; Mon, 26 Jan 2009 21:27:32 GMT Received: from xmb-rtp-206.amer.cisco.com ([64.102.31.32]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 26 Jan 2009 16:27:32 -0500 Received: from 10.98.32.163 ([10.98.32.163]) by xmb-rtp-206.amer.cisco.com ([64.102.31.32]) with Microsoft Exchange Server HTTP-DAV ; Mon, 26 Jan 2009 21:26:54 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Mon, 26 Jan 2009 16:26:52 -0500 From: George Swallow To: "Malis, Andrew G. (Andy)" , "Drake, John E" , Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAYoxAAA7dk9gAAI6bgAAOw/0U= In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97365A479@FHDP1LUMXCV24.us.one.verizon.com> Mime-version: 1.0 X-OriginalArrivalTime: 26 Jan 2009 21:27:32.0824 (UTC) FILETIME=[E6407580:01C97FFC] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=7975; t=1233005253; x=1233869253; c=relaxed/simple; s=rtpdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=swallow@cisco.com; z=From:=20George=20Swallow=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20 |To:=20=22Malis,=20Andrew=20G.=20(Andy)=22=20,=0A=20=20=20=20=20=20=20=20=22Drake,=20John=2 0E=22=20,=20; bh=FmwE5D2EOnFLfpb3yNB0kBH1tjLLXXIES4rFtOTDtJs=; b=0ri24PDS4cO2tsht/4iwrWHMewLOXwTDm4u8LWT2oXZMknRIXvP4H9ChtY 9/ox6etHlLk3GNisDHsLy2jbo+lTOkhyT92uMjQ7apHb/s5nLpV/5CDz4H6s WidJQF9AMc; Authentication-Results: rtp-dkim-2; header.From=swallow@cisco.com; dkim=pass ( sig from cisco.com/rtpdkim2001 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Andy - I still don't get the picture. Saying "MPLS packets" means nothing to me. Consider this picture. P1 | TE1 - T(*) - TE2 - P3 | P2 Who is directly connected to P3 from a protocol point of view? If P3 is a peer of TE2, then TE2 is also acting a P router. If P3 is a neighbor of P1, then there is some link interface between P1 and P3 instantiated over the TE cloud. A pw would work. If P3 is a neighbor of both P1 and P2, then there is some sort of multiplexed link interface between P3 and TE2 which gets mapped to links to P1 and P2 by TE2. Please clarify. ...George On 1/26/09 2:46 PM, "Malis, Andrew G. (Andy)" wrote: > George, > > That's the client signal interface on the TE device, connected to a > trunk interface on the P(E) router. It would typically have MPLS packets > encapsulated over GFP if it's a physical SONET/SDH interface, over G.709 > if a physical OTN interface, or over Ethernet if it a physical > GE/10GE/100GE interface. Physically, it's identical to how one would > interconnect routers using TDM-based transport switches. > > Cheers, > Andy > > -----Original Message----- > From: George Swallow [mailto:swallow@cisco.com] > Sent: Monday, January 26, 2009 2:37 PM > To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com > Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > I don't understand the picture. What is the link between the P(E) > device > and the TE device? > > ...George > > > On 1/26/09 1:14 PM, "Malis, Andrew G. (Andy)" > > wrote: > >> George, >> >> I think a picture may help here. This is the reference model that I > have >> in mind. >> >> This is a traditional MPLS network that we operate now: >> >> CE - PE - P(*) - PE -CE >> >> Where P(*) is zero or more core provider routers. >> >> With MPLS-TP, this picture changes to either of the following (where >> T(*) is zero or more core MPLS-TP transport switches and TE is an edge >> MPLS-TP transport switch): >> >> CE - PE - P - TE - T(*) - TE - P - PE - CE >> >> - or - >> >> CE - PE - TE - T(*) - TE - PE - CE >> >> In either case, a T-T, T-TE, or TE-TE trunk uses an MPLS-TP label > stack, >> and the P-TE or PE-TE interfaces have MPLS on them, to be encapsulated >> within MPLS-TP, so that MPLS-TP can transparently transport the MPLS >> packets between the P or PE routers. >> >> If we're all in agreement here on this model, then when you talk about >> running MPLS as it currently exists, I don't think that's an issue, >> since a T and TE are devices that don't yet exist in the marketplace, >> and thus we are free to define their behavior, as long as that > behavior >> meets the MPLS-TP requirements draft. >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: George Swallow [mailto:swallow@cisco.com] >> Sent: Monday, January 26, 2009 12:48 PM >> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. >> However >> if you want to run MPLS as it currently exists in 10s of thousands of >> devices, then you need a PW that can carry IP as well as all the >> control >> and OAM depends on it. >> >> So whatever solution we get to needs to carry both MPLS and IP. And > if >> that >> is the case then relying on EOS is a non-starter. >> >> ...George >> >> >> On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" >> >> wrote: >> >>> John, >>> >>> This would be for an MPLS PW, which we have not yet defined (a new >> MPLS >>> PW draft would be required). Thus, we are free to make up the rules. >>> >>> Note that I'm still pretty much in agreement that we don't need an >> MPLS >>> PW to run MPLS over MPLS-TP (I'm still awaiting further arguments > from >>> Stewart or anyone else that wants to argue in favor of using a PW). >>> >>> However, I do think that we would need an MPLS-TP PW if we wanted to >> run >>> MPLS-TP over MPLS (that came up last week as well). The primary issue >>> here is that MPLS-TP over MPLS would require in-order delivery, so it >>> has to avoid ECMP. >>> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >>> Sent: Monday, January 26, 2009 11:54 AM >>> To: Malis, Andrew G. (Andy); stbryant@cisco.com >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>> >>> Andy, >>> >>> Per RFC 4448, the control word is optional for Ethernet PWs, so its >>> presence cannot be counted on. If it is present, the sequence number >>> field may be used so that the bottom sixteen bits may not be zero. >>> >>> Given that we are talking about a rogue implementation that does not >>> respect the 'end of stack' bit, I don't see much utility. >>> >>> Thanks, >>> >>> John >>> >>>> -----Original Message----- >>>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>>> Sent: Monday, January 26, 2009 8:42 AM >>>> To: stbryant@cisco.com; Drake, John E >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Stewart, >>>> >>>> Boy, talk about dredging up old emails ... >>>> >>>> I've been thinking some more about this issue since our >>>> discussion last week in Ipswich. The question I asked there >>>> was whether what we gain from putting a PW label and CW in the >>>> stack to separate the MPLS-TP stack and the MPLS stack are >>>> worth the cost: >>>> >>>> - 64 additional bits in the packet header (obviously) >>>> - LDP signaling between the PW endpoints to distribute the PW label >>>> >>>> As I see it, what we gain is: >>>> >>>> - a clear demark (although you would get that as well with the S > bit) >>>> - a serial number so that the MPLS PW can be kept in-order >>>> (although you have been arguing against using the serial >>>> number in your last few >>>> emails) >>>> - a non-IP first nibble and a zero TTL in the CW (assuming >>>> that a serial number is not used) to "poison the stack" in >>>> case there's a provisioning problem >>>> >>>> So it really comes down to having the "poison" in the stack in >>>> the unlikely case of a provisioning mismatch in an endpoint >>>> switch. I'm still not convinced that it's worth the cost, >>>> although I could possibly still be convinced. Are there any >>>> other advantages that I've missed? >>>> >>>> Cheers, >>>> Andy >>>> >>>> -----Original Message----- >>>> From: mpls-interop-bounces@ietf.org >>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>>> Sent: Monday, January 26, 2009 11:26 AM >>>> To: Drake, John E >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> John >>>>> >>>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>>> over >>>>> an MPLS LSP strikes me as an IQ test that one has failed. >>>> >>>> I always fail those - I take it to indicate a faulty test >>>> methodology :) >>>> >>>> The CW will poison the packet anywhere other than where a CW >>>> is expected. >>>> >>>> Stewart >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>> >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Mon Jan 26 14:20:49 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 490D03A6864; Mon, 26 Jan 2009 14:20:49 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 10BE13A69F1 for ; Mon, 26 Jan 2009 14:20:48 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.425 X-Spam-Level: X-Spam-Status: No, score=-1.425 tagged_above=-999 required=5 tests=[AWL=0.107, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1, RCVD_NUMERIC_HELO=2.067] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id V0j50-0AiDiQ for ; Mon, 26 Jan 2009 14:20:46 -0800 (PST) Received: from smtp1.smtp.bt.com (smtp1.smtp.bt.com [217.32.164.137]) by core3.amsl.com (Postfix) with ESMTP id 7E5F43A6880 for ; Mon, 26 Jan 2009 14:20:46 -0800 (PST) Received: from E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.107]) by smtp1.smtp.bt.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 26 Jan 2009 22:20:28 +0000 Received: from 217.32.164.184 ([217.32.164.184]) by E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.60]) via Exchange Front-End Server mail.bt.com ([193.113.197.28]) with Microsoft Exchange Server HTTP-DAV ; Mon, 26 Jan 2009 22:20:27 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Mon, 26 Jan 2009 22:20:25 +0000 From: Ben Niven-Jenkins To: George Swallow , "Malis, Andrew G. (Andy)" , "Drake, John E" , Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAmDc1I= In-Reply-To: Mime-version: 1.0 X-OriginalArrivalTime: 26 Jan 2009 22:20:28.0178 (UTC) FILETIME=[4AE90720:01C98004] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org George, I think you are articulating something similar (if not the same) to what I tried (badly) to do. I also think the range of possible solutions depends on what angle you are coming at MPLS-TP - does one want to build new or does one want to evolve their existing MPLS deployment. For me it is definitely the latter In other words does one assume that when run inband the CP(/MP) uses the GACH or uses the current method of MPLS (i.e. Run IP CP parallel to MPLS), while I understand the case for the GACH (OOB 'in path') I don't think we can discount the latter. I have tried to draw what I am thinking and have posted it here: http://www.niven-jenkins.co.uk/MPLS-TP/MPLSoverMPLS.ppt Ben On 26/01/2009 17:48, "George Swallow" wrote: > An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. However > if you want to run MPLS as it currently exists in 10s of thousands of > devices, then you need a PW that can carry IP as well as all the control > and OAM depends on it. > > So whatever solution we get to needs to carry both MPLS and IP. And if that > is the case then relying on EOS is a non-starter. > > ...George > > > On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" > wrote: > >> John, >> >> This would be for an MPLS PW, which we have not yet defined (a new MPLS >> PW draft would be required). Thus, we are free to make up the rules. >> >> Note that I'm still pretty much in agreement that we don't need an MPLS >> PW to run MPLS over MPLS-TP (I'm still awaiting further arguments from >> Stewart or anyone else that wants to argue in favor of using a PW). >> >> However, I do think that we would need an MPLS-TP PW if we wanted to run >> MPLS-TP over MPLS (that came up last week as well). The primary issue >> here is that MPLS-TP over MPLS would require in-order delivery, so it >> has to avoid ECMP. >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >> Sent: Monday, January 26, 2009 11:54 AM >> To: Malis, Andrew G. (Andy); stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Andy, >> >> Per RFC 4448, the control word is optional for Ethernet PWs, so its >> presence cannot be counted on. If it is present, the sequence number >> field may be used so that the bottom sixteen bits may not be zero. >> >> Given that we are talking about a rogue implementation that does not >> respect the 'end of stack' bit, I don't see much utility. >> >> Thanks, >> >> John >> >>> -----Original Message----- >>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>> Sent: Monday, January 26, 2009 8:42 AM >>> To: stbryant@cisco.com; Drake, John E >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>> >>> Stewart, >>> >>> Boy, talk about dredging up old emails ... >>> >>> I've been thinking some more about this issue since our >>> discussion last week in Ipswich. The question I asked there >>> was whether what we gain from putting a PW label and CW in the >>> stack to separate the MPLS-TP stack and the MPLS stack are >>> worth the cost: >>> >>> - 64 additional bits in the packet header (obviously) >>> - LDP signaling between the PW endpoints to distribute the PW label >>> >>> As I see it, what we gain is: >>> >>> - a clear demark (although you would get that as well with the S bit) >>> - a serial number so that the MPLS PW can be kept in-order >>> (although you have been arguing against using the serial >>> number in your last few >>> emails) >>> - a non-IP first nibble and a zero TTL in the CW (assuming >>> that a serial number is not used) to "poison the stack" in >>> case there's a provisioning problem >>> >>> So it really comes down to having the "poison" in the stack in >>> the unlikely case of a provisioning mismatch in an endpoint >>> switch. I'm still not convinced that it's worth the cost, >>> although I could possibly still be convinced. Are there any >>> other advantages that I've missed? >>> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: mpls-interop-bounces@ietf.org >>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>> Sent: Monday, January 26, 2009 11:26 AM >>> To: Drake, John E >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> John >>>> >>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>> over >>>> an MPLS LSP strikes me as an IQ test that one has failed. >>> >>> I always fail those - I take it to indicate a faulty test >>> methodology :) >>> >>> The CW will poison the packet anywhere other than where a CW >>> is expected. >>> >>> Stewart >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 27 00:46:53 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 126113A6A24; Tue, 27 Jan 2009 00:46:53 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 539F93A6B23 for ; Tue, 27 Jan 2009 00:46:51 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.375 X-Spam-Level: X-Spam-Status: No, score=-10.375 tagged_above=-999 required=5 tests=[AWL=0.224, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id FuMLbcMYSCDw for ; Tue, 27 Jan 2009 00:46:50 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id E67743A6A24 for ; Tue, 27 Jan 2009 00:46:49 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,331,1231113600"; d="scan'208";a="32023110" Received: from ams-dkim-2.cisco.com ([144.254.224.139]) by ams-iport-1.cisco.com with ESMTP; 27 Jan 2009 08:46:31 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0R8kV7A023708; Tue, 27 Jan 2009 09:46:31 +0100 Received: from dhcp-bdlk09-vlan250-wdata-64-103-81-52.cisco.com (dhcp-bdlk09-vlan250-wdata-64-103-81-52.cisco.com [64.103.81.52]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0R8kUtK026424; Tue, 27 Jan 2009 08:46:30 GMT Message-ID: <497EC9E6.4080004@cisco.com> Date: Tue, 27 Jan 2009 08:46:30 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: "Drake, John E" References: <51661468CBD1354294533DA79E85955A016704D7@XCH-SW-5V2.sw.nos.boeing.com> <51661468CBD1354294533DA79E85955A016704FB@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <51661468CBD1354294533DA79E85955A016704FB@XCH-SW-5V2.sw.nos.boeing.com> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=1005; t=1233045991; x=1233909991; c=relaxed/simple; s=amsdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=1s19DOE5qZC7XsONZG0wIwbpXB633Y6scbpzmZsyYBY=; b=PVCGxKLD/pkATcdHmGDfj+Rz3kMJRG22M3uMpgKvr8MTEyfQPaQDkVg8ew XPUkHlczOPz9IZVaKVwcl7iIeWHw7MlNIdpsilWHS9/aPyGMiC1kYKh7B/ff J9pWRKY6Xl; Authentication-Results: ams-dkim-2; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim2001 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Drake, John E wrote: > > > >> -----Original Message----- >> From: George Swallow [mailto:swallow@cisco.com] >> Sent: Monday, January 26, 2009 10:04 AM >> To: Drake, John E; Malis, Andrew G. (Andy); stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> Several points here. >> >> First the reserve values you speak of are all reserved in the >> IP Protocol number space. I do not believe that the powers >> that be will be very please with a proposal that says that we >> will use values that they may later define as a new IP version. >> > > JD: Then how was PW able to get the values '0' and '1'? > On the basis that we had a need, but would design the protocols such that we would never go back and ask for more. Both nibbles and reserved labels are a very scarce resource that need to last us a long time, so we need to allocate them with great care. Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 27 00:50:44 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5F0233A6BC1; Tue, 27 Jan 2009 00:50:44 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 366E03A6BC3 for ; Tue, 27 Jan 2009 00:50:43 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.384 X-Spam-Level: X-Spam-Status: No, score=-10.384 tagged_above=-999 required=5 tests=[AWL=0.214, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KOM9GAS1iiZo for ; Tue, 27 Jan 2009 00:50:42 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 46F383A6BC2 for ; Tue, 27 Jan 2009 00:50:41 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,331,1231113600"; d="ics'?eml'208?scan'208,208,217";a="32023614" Received: from ams-dkim-1.cisco.com ([144.254.224.138]) by ams-iport-1.cisco.com with ESMTP; 27 Jan 2009 08:50:22 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id n0R8oMg3012002; Tue, 27 Jan 2009 09:50:22 +0100 Received: from dhcp-bdlk09-vlan250-wdata-64-103-81-52.cisco.com (dhcp-bdlk09-vlan250-wdata-64-103-81-52.cisco.com [64.103.81.52]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0R8oMvW027756; Tue, 27 Jan 2009 08:50:22 GMT Message-ID: <497ECACE.7020009@cisco.com> Date: Tue, 27 Jan 2009 08:50:22 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: MEAD team Content-Type: multipart/mixed; boundary="------------090404010703070208080507" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=19758; t=1233046222; x=1233910222; c=relaxed/simple; s=amsdkim1002; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20[Fwd=3A=20Meeting=3A=20Bryant=20{Meeting=20ID=3 A=20310310314159}] |Sender:=20; bh=vnsobX8/4g5SzYS1grZa2BrAYala0P0YoGo2rxbCgkA=; b=Nzy8YTHmIWuKFtpSNLfD89aKsNShnJu3TgjN1z3dz8z8nhual4gmWSWg0E g0s81fYVMRFZjVVpwcaxXd7pIb9RQHjrl3Qu7JUgtRX6J28BjIl1bUg+Z+4P pVTOFGY5kw; Authentication-Results: ams-dkim-1; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim1002 verified; ); Subject: [Mpls-interop] [Fwd: Meeting: Bryant {Meeting ID: 310310314159}] X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org This is a multi-part message in MIME format. --------------090404010703070208080507 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Dialin for tonight Stewart --------------090404010703070208080507 Content-Type: message/rfc822; name="Meeting: Bryant {Meeting ID: 310310314159}.eml" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="Meeting: Bryant {Meeting ID: 310310314159}.eml" X-Account-Key: account3 X-Mozilla-Keys: Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0R8jcO28616 for ; Tue, 27 Jan 2009 08:45:38 GMT X-IronPort-AV: E=Sophos;i="4.37,331,1231113600"; d="ics'?scan'208,217";a="32022992" Received: from ams-dkim-2.cisco.com ([144.254.224.139]) by ams-iport-1.cisco.com with ESMTP; 27 Jan 2009 08:45:38 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0R8jcLn023402 for ; Tue, 27 Jan 2009 09:45:38 +0100 Received: from xbh-ams-331.emea.cisco.com (xbh-ams-331.cisco.com [144.254.231.71]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0R8jc0Y026097 for ; Tue, 27 Jan 2009 08:45:38 GMT Received: from xmb-ams-337.cisco.com ([144.254.231.82]) by xbh-ams-331.emea.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Tue, 27 Jan 2009 09:45:38 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:calendarmessage MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C9805B.A0960B3B" Subject: Meeting: Bryant {Meeting ID: 310310314159} Date: Tue, 27 Jan 2009 09:45:37 +0100 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Index: AcmAW6CWOHjtYibaSlObOhmapJCuWQ== From: "mp-ams-c1-olk.svc" To: "Stewart Bryant (stbryant)" X-OriginalArrivalTime: 27 Jan 2009 08:45:38.0358 (UTC) FILETIME=[A0B84560:01C9805B] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=16716; t=1233045938; x=1233909938; c=relaxed/simple; s=amsdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=mp-ams-c1-olk.svc@cisco.com; z=From:=20=22mp-ams-c1-olk.svc=22=20 |Subject:=20Meeting=3A=20Bryant=20{Meeting=20ID=3A=20310310 314159} |Sender:=20; bh=nmfQVQRkPUGH1hwkY9rq9BIJf2+ztpN49KnxU1ySbyw=; b=JJ8oQoabIz4aLScgBb7K+HVLKaooCZQuve49eYrVp1fG8dLflycyoC9tzf CO6baKbP3WcVqZqjtlQRXp5+lWV2IjaVus/YFb45kwZEynKAsNhIiM5R3riz yqWuWhM4nA; Authentication-Results: ams-dkim-2; header.From=mp-ams-c1-olk.svc@cisco.com; dkim=pass ( sig from cisco.com/amsdkim2001 verified; ); This is a multi-part message in MIME format. ------_=_NextPart_001_01C9805B.A0960B3B Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Stewart Bryant has invited you to a Cisco Unified MeetingPlace = Conference Date/Time: January 27, 2009 at 05:00PM Europe/London Length: 60 Frequency: once Meeting ID: 310310314159 Meeting Password: =20 Global Access Numbers: http://cisco.com/en/US/about/doing_business/conferencing/index.html San Jose, CA: +1.408.525.6800 RTP: +1.919.392.3330 = =20 US/Canada: +1.866.432.9903 United Kingdom: +44.20.8824.0117 India: +91.80.4103.3979 Germany: +49.619.6773.9002 Japan: +81.3.5763.9394 China: +86.10.8515.5666 TO ATTEND A WEB AND VOICE CONFERENCE: CISCO INTRANET ATTENDEES Join the Web & Voice Conference* 1. Go to http://meetingplaceinternal.cisco.com/join.asp?310310314159 2. Enter your CEC User ID & Password then click OK - Accept any security warnings you receive and wait for the Meeting Room = to initialize** 3. Click on CONNECT from the Meeting Room to join the Voice Conference = portion of the meeting EXTERNAL ATTENDEES - Outside the Cisco Intranet Join the Web & Voice Conference* 1. Go to http://meetingplace.cisco.com/join.asp?310310314159 2. Fill in the My Name is field then click Attend Meeting - If you have a CEC User ID, click on the Cisco icon - Accept any security warnings you receive and wait for the Meeting Room = to initialize** 3. Click on CONNECT from the Meeting Room to join the Voice Conference = portion of the meeting - Note: Guest users will see a link to the Global Access Numbers. *If this is your first time attending a Web Conference, disable any = pop-up blockers and visit = http://meetingplace.cisco.com/mpweb/scripts/browsertestupper.asp to test = your web browser for compatibility with the Web Conference. **The meeting will not start until the Host of the meeting arrives - if = you'd like to start the meeting with your Profile, please review the = steps below to attend a Voice Only Conference as a Guest then follow the = system prompts. TO ATTEND A RESERVATIONLESS VOICE ONLY CONFERENCE AS THE HOST 1. Dial into Cisco Unified MeetingPlace (view the Access Numbers and = link above) 2. Press 1 to attend the meeting 3. Enter the Meeting ID 310310314159 followed by # key 4. Follow the prompts to record your name and enter the waiting room 5. Press 2 then enter your Profile Password to initiate your meeting AS A GUEST 1. Follow steps 1-4 above to access the meeting 2. You will be placed in a waiting room until the Host initiates the = meeting SUPPORT Information about this Conference: Contact Stewart Bryant, 442088248828 Cisco IT Support Center: Attend the Voice Conference and then press #0 = on your phone keypad ------_=_NextPart_001_01C9805B.A0960B3B Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Meeting: Bryant {Meeting ID: 310310314159}

Stewart Bryant has invited you = to a Cisco Unified MeetingPlace Conference

Date/Time:           &n= bsp;   January 27, 2009 at 05:00PM Europe/London
Length:           &n= bsp;      60
Frequency:           &n= bsp;   once
Meeting ID:           &n= bsp;  310310314159
Meeting = Password:       

Global Access = Numbers:
http://cisco.com/en/US/about/doing_business/conferencing/index.html

    San Jose, CA: = +1.408.525.6800    RTP:           &n= bsp;  +1.919.392.3330     =20
    = US/Canada:  = +1.866.432.9903    United Kingdom:   +44.20.8824.0117
    = India:      = +91.80.4103.3979   Germany:          = +49.619.6773.9002
    = Japan:      = +81.3.5763.9394    China:            = +86.10.8515.5666

TO ATTEND A WEB AND VOICE = CONFERENCE:

CISCO = INTRANET ATTENDEES
Join the Web & Voice = Conference*
1. Go to http= ://meetingplaceinternal.cisco.com/join.asp?310310314159
2. Enter your CEC User ID & Password then click OK
- Accept any security warnings = you receive and wait for the Meeting Room to initialize**
3. Click on CONNECT from the Meeting Room to join the Voice Conference = portion of the meeting

EXTERNAL = ATTENDEES - Outside the Cisco Intranet
Join the Web & Voice = Conference*
1. Go to http://meeti= ngplace.cisco.com/join.asp?310310314159
2. Fill in the My Name is field then click Attend Meeting
- If you have a CEC User ID, = click on the Cisco icon
- Accept any security warnings = you receive and wait for the Meeting Room to initialize**
3. Click on CONNECT from the Meeting Room to join the Voice Conference = portion of the meeting
- Note: Guest users will see a link to the Global Access Numbers.

*If this is your = first time attending a Web Conference, disable any pop-up blockers and = visit http://meetingplace.cisco.com/mpweb/scripts/browsertestupper.asp to test your web browser for = compatibility with the Web Conference.

**The meeting will = not start until the Host of the meeting arrives - if you'd like to start = the meeting with your Profile, please review the steps below to attend a = Voice Only Conference as a Guest then follow the system = prompts.

TO ATTEND A RESERVATIONLESS VOICE = ONLY CONFERENCE

AS THE = HOST
1. Dial into Cisco Unified = MeetingPlace (view the Access Numbers and link above)
2. Press 1 to attend the meeting
3. Enter the Meeting = ID 310310314159 = followed by # key
4. Follow the prompts to record = your name and enter the waiting room
5. Press 2 then enter your Profile Password to = initiate your meeting

AS A = GUEST
1. Follow steps 1-4 above to = access the meeting
2. You will be placed in a = waiting room until the Host initiates the meeting

SUPPORT
Information about this = Conference: Contact = Stewart Bryant, 442088248828
Cisco IT Support = Center: Attend the Voice = Conference and then press #0 on your phone keypad

------_=_NextPart_001_01C9805B.A0960B3B Content-class: urn:content-classes:calendarmessage Content-Type: text/calendar; method=REQUEST; name="meeting.ics" Content-Transfer-Encoding: 8bit BEGIN:VCALENDAR METHOD:REQUEST PRODID:Microsoft CDO for Microsoft Exchange VERSION:2.0 BEGIN:VEVENT DTSTAMP:20090127T084537Z DTSTART:20090127T170000Z SUMMARY:Meeting: Bryant {Meeting ID: 310310314159} UID:040000008200E00074C5B7101A82E0080000000010F9419F5B80C901000000000000000 01000000075E74E7D0004154DA0081D2B241D62C5 ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="Stewart B ryant (stbryant)":MAILTO:stbryant@cisco.com ORGANIZER;CN="mp-ams-c1-olk.svc":MAILTO:mp-ams-c1-olk.svc@cisco.com LOCATION: DTEND:20090127T180000Z DESCRIPTION:Stewart Bryant has invited you to a Cisco Unified MeetingPlace Conference\N\NDate/Time: January 27\, 2009 at 05:00PM Europe /London\NLength: 60\NFrequency: once\NMeeti ng ID: 310310314159\NMeeting Password: \N\NGlobal Acce ss Numbers:\Nhttp://cisco.com/en/US/about/doing_business/conferencing/inde x.html\N\N San Jose\, CA: +1.408.525.6800 RTP: +1.919.3 92.3330 \N US/Canada: +1.866.432.9903 United Kingdom: +44.20 .8824.0117\N India: +91.80.4103.3979 Germany: +49.619.6 773.9002\N Japan: +81.3.5763.9394 China: +86.10.8515 .5666\N\NTO ATTEND A WEB AND VOICE CONFERENCE:\N\NCISCO INTRANET ATTENDEES \NJoin the Web & Voice Conference*\N1. Go to http://meetingplaceinternal.c isco.com/join.asp?310310314159\N2. Enter your CEC User ID & Password then click OK\N- Accept any security warnings you receive and wait for the Meet ing Room to initialize**\N3. Click on CONNECT from the Meeting Room to joi n the Voice Conference portion of the meeting\N\NEXTERNAL ATTENDEES - Outs ide the Cisco Intranet\NJoin the Web & Voice Conference*\N1. Go to http:// meetingplace.cisco.com/join.asp?310310314159\N2. Fill in the My Name is fi eld then click Attend Meeting\N- If you have a CEC User ID\, click on the Cisco icon\N- Accept any security warnings you receive and wait for the Me eting Room to initialize**\N3. Click on CONNECT from the Meeting Room to j oin the Voice Conference portion of the meeting\N- Note: Guest users will see a link to the Global Access Numbers.\N\N*If this is your first time at tending a Web Conference\, disable any pop-up blockers and visit http://me etingplace.cisco.com/mpweb/scripts/browsertestupper.asp to test your web b rowser for compatibility with the Web Conference.\N**The meeting will not start until the Host of the meeting arrives - if you'd like to start the m eeting with your Profile\, please review the steps below to attend a Voice Only Conference as a Guest then follow the system prompts.\N\NTO ATTEND A RESERVATIONLESS VOICE ONLY CONFERENCE\N\NAS THE HOST\N1. Dial into Cisco Unified MeetingPlace (view the Access Numbers and link above)\N2. Press 1 to attend the meeting\N3. Enter the Meeting ID 310310314159 followed by # key\N4. Follow the prompts to record your name and enter the waiting room\ N5. Press 2 then enter your Profile Password to initiate your meeting\N\NA S A GUEST\N1. Follow steps 1-4 above to access the meeting\N2. You will be placed in a waiting room until the Host initiates the meeting\N\NSUPPORT\ NInformation about this Conference: Contact Stewart Bryant\, 442088248828\ NCisco IT Support Center: Attend the Voice Conference and then press #0 on your phone keypad\N\N SEQUENCE:0 PRIORITY:5 CLASS: CREATED:20090127T084537Z LAST-MODIFIED:20090127T084538Z STATUS:CONFIRMED TRANSP:OPAQUE X-MICROSOFT-CDO-BUSYSTATUS:BUSY X-MICROSOFT-CDO-INSTTYPE:0 X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY X-MICROSOFT-CDO-ALLDAYEVENT:FALSE X-MICROSOFT-CDO-IMPORTANCE:1 X-MICROSOFT-CDO-OWNERAPPTID:-1 X-MICROSOFT-CDO-ATTENDEE-CRITICAL-CHANGE:20090127T084537Z X-MICROSOFT-CDO-OWNER-CRITICAL-CHANGE:20090127T084537Z BEGIN:VALARM ACTION:DISPLAY DESCRIPTION:REMINDER TRIGGER;RELATED=START:-PT00H15M00S END:VALARM END:VEVENT END:VCALENDAR ------_=_NextPart_001_01C9805B.A0960B3B-- --------------090404010703070208080507 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop --------------090404010703070208080507-- From mpls-interop-bounces@ietf.org Tue Jan 27 06:28:18 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8E8003A69F8; Tue, 27 Jan 2009 06:28:18 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3973728C141 for ; Tue, 27 Jan 2009 06:28:18 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.422 X-Spam-Level: X-Spam-Status: No, score=-2.422 tagged_above=-999 required=5 tests=[AWL=0.177, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YScCh7m8lVq9 for ; Tue, 27 Jan 2009 06:28:16 -0800 (PST) Received: from sacmail2.verizon.com (sacmail2.verizon.com [192.76.84.41]) by core3.amsl.com (Postfix) with ESMTP id DB2EE3A69F8 for ; Tue, 27 Jan 2009 06:28:16 -0800 (PST) Received: from smtpftw3.verizon.com (smtpftw3.verizon.com [138.83.140.92]) by sacmail2.verizon.com (8.13.7+Sun/8.13.3) with ESMTP id n0RERgsC024729; Tue, 27 Jan 2009 09:27:42 -0500 (EST) Received: from ftwccout01.verizon.com (ftwccout01.verizon.com [138.83.131.134]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0RERg3f017149; Tue, 27 Jan 2009 09:27:42 -0500 (EST) Received: from ftwccout01.verizon.com (unknown [127.0.0.1]) by ftwccout01.verizon.com (Symantec Mail Security) with ESMTP id DEB09528003; Tue, 27 Jan 2009 09:27:41 -0500 (EST) X-AuditID: 8a538386-a8cf9bb0000063b1-59-497f19dd5628 Received: from smtpftw3.verizon.com (unknown [138.83.140.92]) by ftwccout01.verizon.com (EMF) with ESMTP id B6AA04E4004; Tue, 27 Jan 2009 09:27:41 -0500 (EST) Received: from FHDP1CCMXCG01.us.one.verizon.com ([166.68.240.33]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0RERH88016189; Tue, 27 Jan 2009 09:27:41 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG01.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 27 Jan 2009 09:27:39 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Tue, 27 Jan 2009 09:27:03 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D97365A54C@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAYoxAAA7dk9gAAI6bgAAOw/0UAIwYDgA== References: <01F652C8CDBE7D4EB7ED860698C6D97365A479@FHDP1LUMXCV24.us.one.verizon.com> From: "Malis, Andrew G. (Andy)" To: "George Swallow" , "Drake, John E" , X-OriginalArrivalTime: 27 Jan 2009 14:27:39.0156 (UTC) FILETIME=[68118D40:01C9808B] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org George, In your diagram, P1, P2, and P3 are all protocol peers, and are (at the protocol level) direct neighbors to each other. The P routers are NOT peers of the TE/T switches. The P routers are clients of the TE/T switches. P3 is a neighbor of both P1 and P2. Yes, there is a multiplexed link interface between TE2 and P3 which gets mapped to links to P1 and P2 by TE2. A GE/10GE/100GE interface using VLAN for multiplexing would be an example of such an interface, as is a channelized SONET/SDH interface. Alternatively, virtual concatenation can be used with G.709 and GFP packet framing to obtain multiplexing over a single physical interface. At least in VZ, we do not plan to run the P/PE routers and T/TE switches as peers; the network of T/TE switches provides a packet transport service to interconnect the P/PE routers. Cheers, Andy -----Original Message----- From: George Swallow [mailto:swallow@cisco.com] Sent: Monday, January 26, 2009 4:27 PM To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Andy - I still don't get the picture. Saying "MPLS packets" means nothing to me. Consider this picture. P1 | TE1 - T(*) - TE2 - P3 | P2 Who is directly connected to P3 from a protocol point of view? If P3 is a peer of TE2, then TE2 is also acting a P router. If P3 is a neighbor of P1, then there is some link interface between P1 and P3 instantiated over the TE cloud. A pw would work. If P3 is a neighbor of both P1 and P2, then there is some sort of multiplexed link interface between P3 and TE2 which gets mapped to links to P1 and P2 by TE2. Please clarify. ...George On 1/26/09 2:46 PM, "Malis, Andrew G. (Andy)" wrote: > George, > > That's the client signal interface on the TE device, connected to a > trunk interface on the P(E) router. It would typically have MPLS packets > encapsulated over GFP if it's a physical SONET/SDH interface, over G.709 > if a physical OTN interface, or over Ethernet if it a physical > GE/10GE/100GE interface. Physically, it's identical to how one would > interconnect routers using TDM-based transport switches. > > Cheers, > Andy > > -----Original Message----- > From: George Swallow [mailto:swallow@cisco.com] > Sent: Monday, January 26, 2009 2:37 PM > To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com > Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > I don't understand the picture. What is the link between the P(E) > device > and the TE device? > > ...George > > > On 1/26/09 1:14 PM, "Malis, Andrew G. (Andy)" > > wrote: > >> George, >> >> I think a picture may help here. This is the reference model that I > have >> in mind. >> >> This is a traditional MPLS network that we operate now: >> >> CE - PE - P(*) - PE -CE >> >> Where P(*) is zero or more core provider routers. >> >> With MPLS-TP, this picture changes to either of the following (where >> T(*) is zero or more core MPLS-TP transport switches and TE is an edge >> MPLS-TP transport switch): >> >> CE - PE - P - TE - T(*) - TE - P - PE - CE >> >> - or - >> >> CE - PE - TE - T(*) - TE - PE - CE >> >> In either case, a T-T, T-TE, or TE-TE trunk uses an MPLS-TP label > stack, >> and the P-TE or PE-TE interfaces have MPLS on them, to be encapsulated >> within MPLS-TP, so that MPLS-TP can transparently transport the MPLS >> packets between the P or PE routers. >> >> If we're all in agreement here on this model, then when you talk about >> running MPLS as it currently exists, I don't think that's an issue, >> since a T and TE are devices that don't yet exist in the marketplace, >> and thus we are free to define their behavior, as long as that > behavior >> meets the MPLS-TP requirements draft. >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: George Swallow [mailto:swallow@cisco.com] >> Sent: Monday, January 26, 2009 12:48 PM >> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. >> However >> if you want to run MPLS as it currently exists in 10s of thousands of >> devices, then you need a PW that can carry IP as well as all the >> control >> and OAM depends on it. >> >> So whatever solution we get to needs to carry both MPLS and IP. And > if >> that >> is the case then relying on EOS is a non-starter. >> >> ...George >> >> >> On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" >> >> wrote: >> >>> John, >>> >>> This would be for an MPLS PW, which we have not yet defined (a new >> MPLS >>> PW draft would be required). Thus, we are free to make up the rules. >>> >>> Note that I'm still pretty much in agreement that we don't need an >> MPLS >>> PW to run MPLS over MPLS-TP (I'm still awaiting further arguments > from >>> Stewart or anyone else that wants to argue in favor of using a PW). >>> >>> However, I do think that we would need an MPLS-TP PW if we wanted to >> run >>> MPLS-TP over MPLS (that came up last week as well). The primary issue >>> here is that MPLS-TP over MPLS would require in-order delivery, so it >>> has to avoid ECMP. >>> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >>> Sent: Monday, January 26, 2009 11:54 AM >>> To: Malis, Andrew G. (Andy); stbryant@cisco.com >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>> >>> Andy, >>> >>> Per RFC 4448, the control word is optional for Ethernet PWs, so its >>> presence cannot be counted on. If it is present, the sequence number >>> field may be used so that the bottom sixteen bits may not be zero. >>> >>> Given that we are talking about a rogue implementation that does not >>> respect the 'end of stack' bit, I don't see much utility. >>> >>> Thanks, >>> >>> John >>> >>>> -----Original Message----- >>>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>>> Sent: Monday, January 26, 2009 8:42 AM >>>> To: stbryant@cisco.com; Drake, John E >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Stewart, >>>> >>>> Boy, talk about dredging up old emails ... >>>> >>>> I've been thinking some more about this issue since our >>>> discussion last week in Ipswich. The question I asked there >>>> was whether what we gain from putting a PW label and CW in the >>>> stack to separate the MPLS-TP stack and the MPLS stack are >>>> worth the cost: >>>> >>>> - 64 additional bits in the packet header (obviously) >>>> - LDP signaling between the PW endpoints to distribute the PW label >>>> >>>> As I see it, what we gain is: >>>> >>>> - a clear demark (although you would get that as well with the S > bit) >>>> - a serial number so that the MPLS PW can be kept in-order >>>> (although you have been arguing against using the serial >>>> number in your last few >>>> emails) >>>> - a non-IP first nibble and a zero TTL in the CW (assuming >>>> that a serial number is not used) to "poison the stack" in >>>> case there's a provisioning problem >>>> >>>> So it really comes down to having the "poison" in the stack in >>>> the unlikely case of a provisioning mismatch in an endpoint >>>> switch. I'm still not convinced that it's worth the cost, >>>> although I could possibly still be convinced. Are there any >>>> other advantages that I've missed? >>>> >>>> Cheers, >>>> Andy >>>> >>>> -----Original Message----- >>>> From: mpls-interop-bounces@ietf.org >>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>>> Sent: Monday, January 26, 2009 11:26 AM >>>> To: Drake, John E >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> John >>>>> >>>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>>> over >>>>> an MPLS LSP strikes me as an IQ test that one has failed. >>>> >>>> I always fail those - I take it to indicate a faulty test >>>> methodology :) >>>> >>>> The CW will poison the packet anywhere other than where a CW >>>> is expected. >>>> >>>> Stewart >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>> >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 27 06:50:30 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5EA283A6B72; Tue, 27 Jan 2009 06:50:30 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 199C03A6B58 for ; Tue, 27 Jan 2009 06:50:29 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.429 X-Spam-Level: X-Spam-Status: No, score=-2.429 tagged_above=-999 required=5 tests=[AWL=0.170, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nL9mi3OpkqLQ for ; Tue, 27 Jan 2009 06:50:27 -0800 (PST) Received: from irvmail2.verizon.com (irvmail2.verizon.com [192.76.80.130]) by core3.amsl.com (Postfix) with ESMTP id 8FA6B3A6B3E for ; Tue, 27 Jan 2009 06:50:27 -0800 (PST) Received: from smtpftw3.verizon.com (smtpftw3.verizon.com [138.83.140.92]) by irvmail2.verizon.com (8.13.3/8.13.3) with ESMTP id n0REo6E0028513; Tue, 27 Jan 2009 08:50:06 -0600 (CST) Received: from tpaintrmemf3.verizon.com (tpaintrmemf3.verizon.com [138.83.67.58]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0REo5xw015784; Tue, 27 Jan 2009 09:50:05 -0500 (EST) Received: from tpaintrmemf3.verizon.com (unknown [127.0.0.1]) by tpaintrmemf3.verizon.com (Symantec Mail Security) with ESMTP id 66165528007; Tue, 27 Jan 2009 09:50:05 -0500 (EST) X-AuditID: 8a53433a-abbddbb000000647-3e-497f1f1dec91 Received: from smtptpa3.verizon.com (unknown [138.83.71.176]) by tpaintrmemf3.verizon.com (EMF) with ESMTP id 4B1124E4002; Tue, 27 Jan 2009 09:50:05 -0500 (EST) Received: from FHDP1CCMXCG01.us.one.verizon.com ([166.68.240.33]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0REo3n9015157; Tue, 27 Jan 2009 09:50:05 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG01.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 27 Jan 2009 09:50:02 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Tue, 27 Jan 2009 09:49:47 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D97365A559@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAmDc1IAIcQ80A== References: From: "Malis, Andrew G. (Andy)" To: "Ben Niven-Jenkins" , "George Swallow" , "Drake, John E" , X-OriginalArrivalTime: 27 Jan 2009 14:50:02.0963 (UTC) FILETIME=[890A3A30:01C9808E] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Ben, VZ plans to "build new" in your terminology (although "building new" may mean adding packet interface cards to current optical transport switches, not a complete new equipment build out). It also may mean adding G.709 interfaces to existing routers, although much depends on what's the most cost-effective physical interface (from both the router and the optical switch side) - that could be G.709, GFP, or GE/10GE/100GE. Your diagram was very helpful even though you don't really show the option of running MPLS over MPLS-TP. I modified it to show two different alternatives to running client MPLS (green) over server MPLS-TP (red), and it looks like much depends on how you run the client MPLS control traffic. In figure 1, if the client MPLS control traffic (IP) is in-band (in an LSP), you can either use an MPLS PW or the S bit as the demark. This is the situation that I've had in mind. However, as in figure 2, if you run the client control traffic out of band, then it looks like a combination IP/MPLS PW may indeed be required. Thanks, Andy -----Original Message----- From: Ben Niven-Jenkins [mailto:benjamin.niven-jenkins@bt.com] Sent: Monday, January 26, 2009 5:20 PM To: George Swallow; Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP George, I think you are articulating something similar (if not the same) to what I tried (badly) to do. I also think the range of possible solutions depends on what angle you are coming at MPLS-TP - does one want to build new or does one want to evolve their existing MPLS deployment. For me it is definitely the latter In other words does one assume that when run inband the CP(/MP) uses the GACH or uses the current method of MPLS (i.e. Run IP CP parallel to MPLS), while I understand the case for the GACH (OOB 'in path') I don't think we can discount the latter. I have tried to draw what I am thinking and have posted it here: http://www.niven-jenkins.co.uk/MPLS-TP/MPLSoverMPLS.ppt Ben On 26/01/2009 17:48, "George Swallow" wrote: > An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. However > if you want to run MPLS as it currently exists in 10s of thousands of > devices, then you need a PW that can carry IP as well as all the control > and OAM depends on it. > > So whatever solution we get to needs to carry both MPLS and IP. And if that > is the case then relying on EOS is a non-starter. > > ...George > > > On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" > wrote: > >> John, >> >> This would be for an MPLS PW, which we have not yet defined (a new MPLS >> PW draft would be required). Thus, we are free to make up the rules. >> >> Note that I'm still pretty much in agreement that we don't need an MPLS >> PW to run MPLS over MPLS-TP (I'm still awaiting further arguments from >> Stewart or anyone else that wants to argue in favor of using a PW). >> >> However, I do think that we would need an MPLS-TP PW if we wanted to run >> MPLS-TP over MPLS (that came up last week as well). The primary issue >> here is that MPLS-TP over MPLS would require in-order delivery, so it >> has to avoid ECMP. >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >> Sent: Monday, January 26, 2009 11:54 AM >> To: Malis, Andrew G. (Andy); stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Andy, >> >> Per RFC 4448, the control word is optional for Ethernet PWs, so its >> presence cannot be counted on. If it is present, the sequence number >> field may be used so that the bottom sixteen bits may not be zero. >> >> Given that we are talking about a rogue implementation that does not >> respect the 'end of stack' bit, I don't see much utility. >> >> Thanks, >> >> John >> >>> -----Original Message----- >>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>> Sent: Monday, January 26, 2009 8:42 AM >>> To: stbryant@cisco.com; Drake, John E >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>> >>> Stewart, >>> >>> Boy, talk about dredging up old emails ... >>> >>> I've been thinking some more about this issue since our >>> discussion last week in Ipswich. The question I asked there >>> was whether what we gain from putting a PW label and CW in the >>> stack to separate the MPLS-TP stack and the MPLS stack are >>> worth the cost: >>> >>> - 64 additional bits in the packet header (obviously) >>> - LDP signaling between the PW endpoints to distribute the PW label >>> >>> As I see it, what we gain is: >>> >>> - a clear demark (although you would get that as well with the S bit) >>> - a serial number so that the MPLS PW can be kept in-order >>> (although you have been arguing against using the serial >>> number in your last few >>> emails) >>> - a non-IP first nibble and a zero TTL in the CW (assuming >>> that a serial number is not used) to "poison the stack" in >>> case there's a provisioning problem >>> >>> So it really comes down to having the "poison" in the stack in >>> the unlikely case of a provisioning mismatch in an endpoint >>> switch. I'm still not convinced that it's worth the cost, >>> although I could possibly still be convinced. Are there any >>> other advantages that I've missed? >>> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: mpls-interop-bounces@ietf.org >>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>> Sent: Monday, January 26, 2009 11:26 AM >>> To: Drake, John E >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> John >>>> >>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>> over >>>> an MPLS LSP strikes me as an IQ test that one has failed. >>> >>> I always fail those - I take it to indicate a faulty test >>> methodology :) >>> >>> The CW will poison the packet anywhere other than where a CW >>> is expected. >>> >>> Stewart >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 27 06:51:54 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 871033A67B5; Tue, 27 Jan 2009 06:51:54 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7777D3A6863 for ; Tue, 27 Jan 2009 06:51:53 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.436 X-Spam-Level: X-Spam-Status: No, score=-2.436 tagged_above=-999 required=5 tests=[AWL=0.163, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DZ+gTpYWCjZn for ; Tue, 27 Jan 2009 06:51:51 -0800 (PST) Received: from sacmail4.verizon.com (sacmail4.verizon.com [192.76.84.42]) by core3.amsl.com (Postfix) with ESMTP id A838A3A67B5 for ; Tue, 27 Jan 2009 06:51:51 -0800 (PST) Received: from smtptpa4.verizon.com (smtptpa4.verizon.com [138.83.71.177]) by sacmail4.verizon.com (8.13.7+Sun/8.13.3) with ESMTP id n0REpDwc019894; Tue, 27 Jan 2009 09:51:14 -0500 (EST) Received: from ftwintrmemf2.verizon.com (ftwintrmemf2.verizon.com [138.83.131.184]) by smtptpa4.verizon.com (8.13.3/8.13.3) with ESMTP id n0REpD0m013250; Tue, 27 Jan 2009 09:51:13 -0500 (EST) Received: from ftwintrmemf2.verizon.com (unknown [127.0.0.1]) by ftwintrmemf2.verizon.com (Symantec Mail Security) with ESMTP id 18355528008; Tue, 27 Jan 2009 09:51:13 -0500 (EST) X-AuditID: 8a5383b8-a36bbbb000000647-62-497f1f6011a1 Received: from smtptpa3.verizon.com (unknown [138.83.71.176]) by ftwintrmemf2.verizon.com (EMF) with ESMTP id 921A84E4002; Tue, 27 Jan 2009 09:51:12 -0500 (EST) Received: from FHDP1CCMXCG01.us.one.verizon.com ([166.68.240.33]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0REp4WB018086; Tue, 27 Jan 2009 09:51:12 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG01.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 27 Jan 2009 09:51:03 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C9808E.98B3007A" Date: Tue, 27 Jan 2009 09:50:26 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D97365A55A@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: <01F652C8CDBE7D4EB7ED860698C6D97365A54C@FHDP1LUMXCV24.us.one.verizon.com> X-MS-Has-Attach: yes X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAYoxAAA7dk9gAAI6bgAAOw/0UAIwYDgAABaRsA References: <01F652C8CDBE7D4EB7ED860698C6D97365A479@FHDP1LUMXCV24.us.one.verizon.com> <01F652C8CDBE7D4EB7ED860698C6D97365A54C@FHDP1LUMXCV24.us.one.verizon.com> From: "Malis, Andrew G. (Andy)" To: "Malis, Andrew G. (Andy)" , "George Swallow" , "Drake, John E" , X-OriginalArrivalTime: 27 Jan 2009 14:51:03.0777 (UTC) FILETIME=[AD49B510:01C9808E] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org This is a multi-part message in MIME format. ------_=_NextPart_001_01C9808E.98B3007A Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Sorry, I forgot the enclosure. Andy -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Malis, Andrew G. (Andy) Sent: Tuesday, January 27, 2009 9:27 AM To: George Swallow; Drake, John E; stbryant@cisco.com Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP George, In your diagram, P1, P2, and P3 are all protocol peers, and are (at the protocol level) direct neighbors to each other. The P routers are NOT peers of the TE/T switches. The P routers are clients of the TE/T switches. P3 is a neighbor of both P1 and P2. Yes, there is a multiplexed link interface between TE2 and P3 which gets mapped to links to P1 and P2 by TE2. A GE/10GE/100GE interface using VLAN for multiplexing would be an example of such an interface, as is a channelized SONET/SDH interface. Alternatively, virtual concatenation can be used with G.709 and GFP packet framing to obtain multiplexing over a single physical interface.=20 At least in VZ, we do not plan to run the P/PE routers and T/TE switches as peers; the network of T/TE switches provides a packet transport service to interconnect the P/PE routers. Cheers, Andy -----Original Message----- From: George Swallow [mailto:swallow@cisco.com]=20 Sent: Monday, January 26, 2009 4:27 PM To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Andy - I still don't get the picture. Saying "MPLS packets" means nothing to me. Consider this picture. P1=20 | TE1 - T(*) - TE2 - P3 | P2 Who is directly connected to P3 from a protocol point of view? If P3 is a peer of TE2, then TE2 is also acting a P router. If P3 is a neighbor of P1, then there is some link interface between P1 and P3 instantiated over the TE cloud. A pw would work. If P3 is a neighbor of both P1 and P2, then there is some sort of multiplexed link interface between P3 and TE2 which gets mapped to links to P1 and P2 by TE2. Please clarify. ...George On 1/26/09 2:46 PM, "Malis, Andrew G. (Andy)" wrote: > George, >=20 > That's the client signal interface on the TE device, connected to a > trunk interface on the P(E) router. It would typically have MPLS packets > encapsulated over GFP if it's a physical SONET/SDH interface, over G.709 > if a physical OTN interface, or over Ethernet if it a physical > GE/10GE/100GE interface. Physically, it's identical to how one would > interconnect routers using TDM-based transport switches. >=20 > Cheers, > Andy >=20 > -----Original Message----- > From: George Swallow [mailto:swallow@cisco.com] > Sent: Monday, January 26, 2009 2:37 PM > To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com > Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP >=20 > I don't understand the picture. What is the link between the P(E) > device > and the TE device? >=20 > ...George >=20 >=20 > On 1/26/09 1:14 PM, "Malis, Andrew G. (Andy)" > > wrote: >=20 >> George, >>=20 >> I think a picture may help here. This is the reference model that I > have >> in mind. >>=20 >> This is a traditional MPLS network that we operate now: >>=20 >> CE - PE - P(*) - PE -CE >>=20 >> Where P(*) is zero or more core provider routers. >>=20 >> With MPLS-TP, this picture changes to either of the following (where >> T(*) is zero or more core MPLS-TP transport switches and TE is an edge >> MPLS-TP transport switch): >>=20 >> CE - PE - P - TE - T(*) - TE - P - PE - CE >>=20 >> - or - >>=20 >> CE - PE - TE - T(*) - TE - PE - CE >>=20 >> In either case, a T-T, T-TE, or TE-TE trunk uses an MPLS-TP label > stack, >> and the P-TE or PE-TE interfaces have MPLS on them, to be encapsulated >> within MPLS-TP, so that MPLS-TP can transparently transport the MPLS >> packets between the P or PE routers. >>=20 >> If we're all in agreement here on this model, then when you talk about >> running MPLS as it currently exists, I don't think that's an issue, >> since a T and TE are devices that don't yet exist in the marketplace, >> and thus we are free to define their behavior, as long as that > behavior >> meets the MPLS-TP requirements draft. >>=20 >> Cheers, >> Andy >>=20 >> -----Original Message----- >> From: George Swallow [mailto:swallow@cisco.com] >> Sent: Monday, January 26, 2009 12:48 PM >> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>=20 >> An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. >> However >> if you want to run MPLS as it currently exists in 10s of thousands of >> devices, then you need a PW that can carry IP as well as all the >> control >> and OAM depends on it. >>=20 >> So whatever solution we get to needs to carry both MPLS and IP. And > if >> that >> is the case then relying on EOS is a non-starter. >>=20 >> ...George >>=20 >>=20 >> On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" >> >> wrote: >>=20 >>> John, >>>=20 >>> This would be for an MPLS PW, which we have not yet defined (a new >> MPLS >>> PW draft would be required). Thus, we are free to make up the rules. >>>=20 >>> Note that I'm still pretty much in agreement that we don't need an >> MPLS >>> PW to run MPLS over MPLS-TP (I'm still awaiting further arguments > from >>> Stewart or anyone else that wants to argue in favor of using a PW). >>>=20 >>> However, I do think that we would need an MPLS-TP PW if we wanted to >> run >>> MPLS-TP over MPLS (that came up last week as well). The primary issue >>> here is that MPLS-TP over MPLS would require in-order delivery, so it >>> has to avoid ECMP. >>>=20 >>> Cheers, >>> Andy >>>=20 >>> -----Original Message----- >>> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >>> Sent: Monday, January 26, 2009 11:54 AM >>> To: Malis, Andrew G. (Andy); stbryant@cisco.com >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>=20 >>> Andy, >>>=20 >>> Per RFC 4448, the control word is optional for Ethernet PWs, so its >>> presence cannot be counted on. If it is present, the sequence number >>> field may be used so that the bottom sixteen bits may not be zero. >>>=20 >>> Given that we are talking about a rogue implementation that does not >>> respect the 'end of stack' bit, I don't see much utility. >>>=20 >>> Thanks, >>>=20 >>> John =20 >>>=20 >>>> -----Original Message----- >>>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>>> Sent: Monday, January 26, 2009 8:42 AM >>>> To: stbryant@cisco.com; Drake, John E >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>>=20 >>>> Stewart, >>>>=20 >>>> Boy, talk about dredging up old emails ... >>>>=20 >>>> I've been thinking some more about this issue since our >>>> discussion last week in Ipswich. The question I asked there >>>> was whether what we gain from putting a PW label and CW in the >>>> stack to separate the MPLS-TP stack and the MPLS stack are >>>> worth the cost: >>>>=20 >>>> - 64 additional bits in the packet header (obviously) >>>> - LDP signaling between the PW endpoints to distribute the PW label >>>>=20 >>>> As I see it, what we gain is: >>>>=20 >>>> - a clear demark (although you would get that as well with the S > bit) >>>> - a serial number so that the MPLS PW can be kept in-order >>>> (although you have been arguing against using the serial >>>> number in your last few >>>> emails) >>>> - a non-IP first nibble and a zero TTL in the CW (assuming >>>> that a serial number is not used) to "poison the stack" in >>>> case there's a provisioning problem >>>>=20 >>>> So it really comes down to having the "poison" in the stack in >>>> the unlikely case of a provisioning mismatch in an endpoint >>>> switch. I'm still not convinced that it's worth the cost, >>>> although I could possibly still be convinced. Are there any >>>> other advantages that I've missed? >>>>=20 >>>> Cheers, >>>> Andy >>>>=20 >>>> -----Original Message----- >>>> From: mpls-interop-bounces@ietf.org >>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>>> Sent: Monday, January 26, 2009 11:26 AM >>>> To: Drake, John E >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>>=20 >>>> John >>>>>=20 >>>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>>> over >>>>> an MPLS LSP strikes me as an IQ test that one has failed. >>>>=20 >>>> I always fail those - I take it to indicate a faulty test >>>> methodology :) >>>>=20 >>>> The CW will poison the packet anywhere other than where a CW >>>> is expected. >>>>=20 >>>> Stewart >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>>=20 >>> 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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAQwB1AHIAcgBlAG4AdAAgAFUAcwBlAHIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAABoAAgD///////////////8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAIAAAATQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP///////////////wAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA//////////// ////AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAD///////////////8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAPYPJwAAABQAAABfwJHjJjQBAA8A9AMDAIwAQW5kcmV3IEcuIE1hbGlzCAAAAEEA bgBkAHIAZQB3ACAARwAuACAATQBhAGwAaQBzAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAA== ------_=_NextPart_001_01C9808E.98B3007A Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop ------_=_NextPart_001_01C9808E.98B3007A-- From mpls-interop-bounces@ietf.org Tue Jan 27 09:22:29 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E75183A6924; Tue, 27 Jan 2009 09:22:29 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6458A3A6B2C for ; Tue, 27 Jan 2009 09:22:28 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1GWq0E-cENog for ; Tue, 27 Jan 2009 09:22:27 -0800 (PST) Received: from rtp-iport-1.cisco.com (rtp-iport-1.cisco.com [64.102.122.148]) by core3.amsl.com (Postfix) with ESMTP id A6C1B3A697D for ; Tue, 27 Jan 2009 09:22:26 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,333,1231113600"; d="scan'208";a="35015530" Received: from rtp-dkim-1.cisco.com ([64.102.121.158]) by rtp-iport-1.cisco.com with ESMTP; 27 Jan 2009 17:22:07 +0000 Received: from rtp-core-1.cisco.com (rtp-core-1.cisco.com [64.102.124.12]) by rtp-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id n0RHM5e6027272; Tue, 27 Jan 2009 12:22:05 -0500 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0RHM5J4022818; Tue, 27 Jan 2009 17:22:05 GMT Received: from xmb-rtp-206.amer.cisco.com ([64.102.31.32]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Tue, 27 Jan 2009 12:22:05 -0500 Received: from 10.98.32.163 ([10.98.32.163]) by xmb-rtp-206.amer.cisco.com ([64.102.31.32]) with Microsoft Exchange Server HTTP-DAV ; Tue, 27 Jan 2009 17:21:45 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Tue, 27 Jan 2009 12:21:45 -0500 From: George Swallow To: "Malis, Andrew G. (Andy)" , "Drake, John E" , Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAYoxAAA7dk9gAAI6bgAAOw/0UAIwYDgAAGtRTV In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D97365A54C@FHDP1LUMXCV24.us.one.verizon.com> Mime-version: 1.0 X-OriginalArrivalTime: 27 Jan 2009 17:22:05.0366 (UTC) FILETIME=[C66A7560:01C980A3] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=10094; t=1233076928; x=1233940928; c=relaxed/simple; s=rtpdkim1001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=swallow@cisco.com; z=From:=20George=20Swallow=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20 |To:=20=22Malis,=20Andrew=20G.=20(Andy)=22=20,=0A=20=20=20=20=20=20=20=20=22Drake,=20John=2 0E=22=20,=20; bh=93f/vocZXFSqiXaEEaOwKBm8bYrEhyfwsTSOizyqvVo=; b=cRs8oGoLg2MootlNJxHnHL3V1rXdWvQn3MG7+1JP55qkG4v4dr7OSG1+ln opYMp7IZVmF/OpakKEhBc3Y4H9Ab1rL2VDIsFCzsnKFD7yOfM7JrXoqab6kT iY16NnkMjt; Authentication-Results: rtp-dkim-1; header.From=swallow@cisco.com; dkim=pass ( sig from cisco.com/rtpdkim1001 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Andy - In that case there is no MPLS over MPLS-TP! There is only MPLS over FOO over MPLS-TP where FOO is any of the technologies you list below. Note. I am NOT being flip here. The way the routers see each other as physically adjacent is via a link protocol multiplexing - ppp over Sonet or Ethernet (with ethertype). So the boxes can do IP, CLNS between them as well as MPLS. Otherwise they won't bring up an adjacency, run routing protocols, etc. ...George On 1/27/09 9:27 AM, "Malis, Andrew G. (Andy)" wrote: > George, > > In your diagram, P1, P2, and P3 are all protocol peers, and are (at the > protocol level) direct neighbors to each other. > > The P routers are NOT peers of the TE/T switches. The P routers are > clients of the TE/T switches. > > P3 is a neighbor of both P1 and P2. Yes, there is a multiplexed link > interface between TE2 and P3 which gets mapped to links to P1 and P2 by > TE2. A GE/10GE/100GE interface using VLAN for multiplexing would be an > example of such an interface, as is a channelized SONET/SDH interface. > Alternatively, virtual concatenation can be used with G.709 and GFP > packet framing to obtain multiplexing over a single physical interface. > > At least in VZ, we do not plan to run the P/PE routers and T/TE switches > as peers; the network of T/TE switches provides a packet transport > service to interconnect the P/PE routers. > > Cheers, > Andy > > -----Original Message----- > From: George Swallow [mailto:swallow@cisco.com] > Sent: Monday, January 26, 2009 4:27 PM > To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com > Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > Andy - > > I still don't get the picture. Saying "MPLS packets" means nothing to > me. > > Consider this picture. > > P1 > | > TE1 - T(*) - TE2 - P3 > | > P2 > > > Who is directly connected to P3 from a protocol point of view? If P3 is > a > peer of TE2, then TE2 is also acting a P router. > > If P3 is a neighbor of P1, then there is some link interface between P1 > and > P3 instantiated over the TE cloud. A pw would work. > > If P3 is a neighbor of both P1 and P2, then there is some sort of > multiplexed link interface between P3 and TE2 which gets mapped to links > to > P1 and P2 by TE2. > > Please clarify. > > ...George > > > On 1/26/09 2:46 PM, "Malis, Andrew G. (Andy)" > > wrote: > >> George, >> >> That's the client signal interface on the TE device, connected to a >> trunk interface on the P(E) router. It would typically have MPLS > packets >> encapsulated over GFP if it's a physical SONET/SDH interface, over > G.709 >> if a physical OTN interface, or over Ethernet if it a physical >> GE/10GE/100GE interface. Physically, it's identical to how one would >> interconnect routers using TDM-based transport switches. >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: George Swallow [mailto:swallow@cisco.com] >> Sent: Monday, January 26, 2009 2:37 PM >> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> I don't understand the picture. What is the link between the P(E) >> device >> and the TE device? >> >> ...George >> >> >> On 1/26/09 1:14 PM, "Malis, Andrew G. (Andy)" >> >> wrote: >> >>> George, >>> >>> I think a picture may help here. This is the reference model that I >> have >>> in mind. >>> >>> This is a traditional MPLS network that we operate now: >>> >>> CE - PE - P(*) - PE -CE >>> >>> Where P(*) is zero or more core provider routers. >>> >>> With MPLS-TP, this picture changes to either of the following (where >>> T(*) is zero or more core MPLS-TP transport switches and TE is an > edge >>> MPLS-TP transport switch): >>> >>> CE - PE - P - TE - T(*) - TE - P - PE - CE >>> >>> - or - >>> >>> CE - PE - TE - T(*) - TE - PE - CE >>> >>> In either case, a T-T, T-TE, or TE-TE trunk uses an MPLS-TP label >> stack, >>> and the P-TE or PE-TE interfaces have MPLS on them, to be > encapsulated >>> within MPLS-TP, so that MPLS-TP can transparently transport the MPLS >>> packets between the P or PE routers. >>> >>> If we're all in agreement here on this model, then when you talk > about >>> running MPLS as it currently exists, I don't think that's an issue, >>> since a T and TE are devices that don't yet exist in the marketplace, >>> and thus we are free to define their behavior, as long as that >> behavior >>> meets the MPLS-TP requirements draft. >>> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: George Swallow [mailto:swallow@cisco.com] >>> Sent: Monday, January 26, 2009 12:48 PM >>> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >>> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. >>> However >>> if you want to run MPLS as it currently exists in 10s of thousands of >>> devices, then you need a PW that can carry IP as well as all the >>> control >>> and OAM depends on it. >>> >>> So whatever solution we get to needs to carry both MPLS and IP. And >> if >>> that >>> is the case then relying on EOS is a non-starter. >>> >>> ...George >>> >>> >>> On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" >>> >>> wrote: >>> >>>> John, >>>> >>>> This would be for an MPLS PW, which we have not yet defined (a new >>> MPLS >>>> PW draft would be required). Thus, we are free to make up the rules. >>>> >>>> Note that I'm still pretty much in agreement that we don't need an >>> MPLS >>>> PW to run MPLS over MPLS-TP (I'm still awaiting further arguments >> from >>>> Stewart or anyone else that wants to argue in favor of using a PW). >>>> >>>> However, I do think that we would need an MPLS-TP PW if we wanted to >>> run >>>> MPLS-TP over MPLS (that came up last week as well). The primary > issue >>>> here is that MPLS-TP over MPLS would require in-order delivery, so > it >>>> has to avoid ECMP. >>>> >>>> Cheers, >>>> Andy >>>> >>>> -----Original Message----- >>>> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >>>> Sent: Monday, January 26, 2009 11:54 AM >>>> To: Malis, Andrew G. (Andy); stbryant@cisco.com >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Andy, >>>> >>>> Per RFC 4448, the control word is optional for Ethernet PWs, so its >>>> presence cannot be counted on. If it is present, the sequence > number >>>> field may be used so that the bottom sixteen bits may not be zero. >>>> >>>> Given that we are talking about a rogue implementation that does not >>>> respect the 'end of stack' bit, I don't see much utility. >>>> >>>> Thanks, >>>> >>>> John >>>> >>>>> -----Original Message----- >>>>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>>>> Sent: Monday, January 26, 2009 8:42 AM >>>>> To: stbryant@cisco.com; Drake, John E >>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod > HaSharon) >>>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> Stewart, >>>>> >>>>> Boy, talk about dredging up old emails ... >>>>> >>>>> I've been thinking some more about this issue since our >>>>> discussion last week in Ipswich. The question I asked there >>>>> was whether what we gain from putting a PW label and CW in the >>>>> stack to separate the MPLS-TP stack and the MPLS stack are >>>>> worth the cost: >>>>> >>>>> - 64 additional bits in the packet header (obviously) >>>>> - LDP signaling between the PW endpoints to distribute the PW label >>>>> >>>>> As I see it, what we gain is: >>>>> >>>>> - a clear demark (although you would get that as well with the S >> bit) >>>>> - a serial number so that the MPLS PW can be kept in-order >>>>> (although you have been arguing against using the serial >>>>> number in your last few >>>>> emails) >>>>> - a non-IP first nibble and a zero TTL in the CW (assuming >>>>> that a serial number is not used) to "poison the stack" in >>>>> case there's a provisioning problem >>>>> >>>>> So it really comes down to having the "poison" in the stack in >>>>> the unlikely case of a provisioning mismatch in an endpoint >>>>> switch. I'm still not convinced that it's worth the cost, >>>>> although I could possibly still be convinced. Are there any >>>>> other advantages that I've missed? >>>>> >>>>> Cheers, >>>>> Andy >>>>> >>>>> -----Original Message----- >>>>> From: mpls-interop-bounces@ietf.org >>>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>>>> Sent: Monday, January 26, 2009 11:26 AM >>>>> To: Drake, John E >>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod > HaSharon) >>>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> John >>>>>> >>>>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>>>> over >>>>>> an MPLS LSP strikes me as an IQ test that one has failed. >>>>> >>>>> I always fail those - I take it to indicate a faulty test >>>>> methodology :) >>>>> >>>>> The CW will poison the packet anywhere other than where a CW >>>>> is expected. >>>>> >>>>> Stewart >>>>> _______________________________________________ >>>>> Mpls-interop mailing list >>>>> Mpls-interop@ietf.org >>>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>>> >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 27 09:27:32 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1A3F13A68D2; Tue, 27 Jan 2009 09:27:32 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 206643A690B for ; Tue, 27 Jan 2009 09:27:31 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.443 X-Spam-Level: X-Spam-Status: No, score=-2.443 tagged_above=-999 required=5 tests=[AWL=0.156, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ehYDid34i8bp for ; Tue, 27 Jan 2009 09:27:29 -0800 (PST) Received: from tpamail2.verizon.com (tpamail2.verizon.com [192.76.82.136]) by core3.amsl.com (Postfix) with ESMTP id A53D03A68D2 for ; Tue, 27 Jan 2009 09:27:29 -0800 (PST) Received: from smtpftw3.verizon.com (smtpftw3.verizon.com [138.83.140.92]) by tpamail2.verizon.com (8.13.3/8.13.3) with ESMTP id n0RHQric011843; Tue, 27 Jan 2009 12:26:53 -0500 (EST) Received: from tpaintrmemf3.verizon.com (tpaintrmemf3.verizon.com [138.83.67.58]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0RHQr4p028213; Tue, 27 Jan 2009 12:26:53 -0500 (EST) Received: from tpaintrmemf3.verizon.com (unknown [127.0.0.1]) by tpaintrmemf3.verizon.com (Symantec Mail Security) with ESMTP id A349B528006; Tue, 27 Jan 2009 12:26:52 -0500 (EST) X-AuditID: 8a53433a-aabdbbb000000647-d8-497f43dc35bc Received: from smtpftw3.verizon.com (unknown [138.83.140.92]) by tpaintrmemf3.verizon.com (EMF) with ESMTP id 6D4D74E4002; Tue, 27 Jan 2009 12:26:52 -0500 (EST) Received: from FHDP1CCMXCG01.us.one.verizon.com ([166.68.240.33]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0RHQppP028154; Tue, 27 Jan 2009 12:26:52 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG01.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 27 Jan 2009 12:26:52 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Tue, 27 Jan 2009 12:26:48 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D97365A5C2@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAYoxAAA7dk9gAAI6bgAAOw/0UAIwYDgAAGtRTVAAAZ5yA= References: <01F652C8CDBE7D4EB7ED860698C6D97365A54C@FHDP1LUMXCV24.us.one.verizon.com> From: "Malis, Andrew G. (Andy)" To: "George Swallow" , "Drake, John E" , X-OriginalArrivalTime: 27 Jan 2009 17:26:52.0032 (UTC) FILETIME=[71483800:01C980A4] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org George, I see your point and I agree. Also see the email I sent to Ben this morning, and the enclosed diagram. I now see your point about a combined IP and MPLS PW to bring up router adjacencies and run control protocols. Cheers, Andy -----Original Message----- From: George Swallow [mailto:swallow@cisco.com] Sent: Tuesday, January 27, 2009 12:22 PM To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Andy - In that case there is no MPLS over MPLS-TP! There is only MPLS over FOO over MPLS-TP where FOO is any of the technologies you list below. Note. I am NOT being flip here. The way the routers see each other as physically adjacent is via a link protocol multiplexing - ppp over Sonet or Ethernet (with ethertype). So the boxes can do IP, CLNS between them as well as MPLS. Otherwise they won't bring up an adjacency, run routing protocols, etc. ...George On 1/27/09 9:27 AM, "Malis, Andrew G. (Andy)" wrote: > George, > > In your diagram, P1, P2, and P3 are all protocol peers, and are (at the > protocol level) direct neighbors to each other. > > The P routers are NOT peers of the TE/T switches. The P routers are > clients of the TE/T switches. > > P3 is a neighbor of both P1 and P2. Yes, there is a multiplexed link > interface between TE2 and P3 which gets mapped to links to P1 and P2 by > TE2. A GE/10GE/100GE interface using VLAN for multiplexing would be an > example of such an interface, as is a channelized SONET/SDH interface. > Alternatively, virtual concatenation can be used with G.709 and GFP > packet framing to obtain multiplexing over a single physical interface. > > At least in VZ, we do not plan to run the P/PE routers and T/TE switches > as peers; the network of T/TE switches provides a packet transport > service to interconnect the P/PE routers. > > Cheers, > Andy > > -----Original Message----- > From: George Swallow [mailto:swallow@cisco.com] > Sent: Monday, January 26, 2009 4:27 PM > To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com > Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > Andy - > > I still don't get the picture. Saying "MPLS packets" means nothing to > me. > > Consider this picture. > > P1 > | > TE1 - T(*) - TE2 - P3 > | > P2 > > > Who is directly connected to P3 from a protocol point of view? If P3 is > a > peer of TE2, then TE2 is also acting a P router. > > If P3 is a neighbor of P1, then there is some link interface between P1 > and > P3 instantiated over the TE cloud. A pw would work. > > If P3 is a neighbor of both P1 and P2, then there is some sort of > multiplexed link interface between P3 and TE2 which gets mapped to links > to > P1 and P2 by TE2. > > Please clarify. > > ...George > > > On 1/26/09 2:46 PM, "Malis, Andrew G. (Andy)" > > wrote: > >> George, >> >> That's the client signal interface on the TE device, connected to a >> trunk interface on the P(E) router. It would typically have MPLS > packets >> encapsulated over GFP if it's a physical SONET/SDH interface, over > G.709 >> if a physical OTN interface, or over Ethernet if it a physical >> GE/10GE/100GE interface. Physically, it's identical to how one would >> interconnect routers using TDM-based transport switches. >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: George Swallow [mailto:swallow@cisco.com] >> Sent: Monday, January 26, 2009 2:37 PM >> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> I don't understand the picture. What is the link between the P(E) >> device >> and the TE device? >> >> ...George >> >> >> On 1/26/09 1:14 PM, "Malis, Andrew G. (Andy)" >> >> wrote: >> >>> George, >>> >>> I think a picture may help here. This is the reference model that I >> have >>> in mind. >>> >>> This is a traditional MPLS network that we operate now: >>> >>> CE - PE - P(*) - PE -CE >>> >>> Where P(*) is zero or more core provider routers. >>> >>> With MPLS-TP, this picture changes to either of the following (where >>> T(*) is zero or more core MPLS-TP transport switches and TE is an > edge >>> MPLS-TP transport switch): >>> >>> CE - PE - P - TE - T(*) - TE - P - PE - CE >>> >>> - or - >>> >>> CE - PE - TE - T(*) - TE - PE - CE >>> >>> In either case, a T-T, T-TE, or TE-TE trunk uses an MPLS-TP label >> stack, >>> and the P-TE or PE-TE interfaces have MPLS on them, to be > encapsulated >>> within MPLS-TP, so that MPLS-TP can transparently transport the MPLS >>> packets between the P or PE routers. >>> >>> If we're all in agreement here on this model, then when you talk > about >>> running MPLS as it currently exists, I don't think that's an issue, >>> since a T and TE are devices that don't yet exist in the marketplace, >>> and thus we are free to define their behavior, as long as that >> behavior >>> meets the MPLS-TP requirements draft. >>> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: George Swallow [mailto:swallow@cisco.com] >>> Sent: Monday, January 26, 2009 12:48 PM >>> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >>> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> An MPLS PW is fine if you want to run MPLS-TP over MPLS or MPLS-TP. >>> However >>> if you want to run MPLS as it currently exists in 10s of thousands of >>> devices, then you need a PW that can carry IP as well as all the >>> control >>> and OAM depends on it. >>> >>> So whatever solution we get to needs to carry both MPLS and IP. And >> if >>> that >>> is the case then relying on EOS is a non-starter. >>> >>> ...George >>> >>> >>> On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" >>> >>> wrote: >>> >>>> John, >>>> >>>> This would be for an MPLS PW, which we have not yet defined (a new >>> MPLS >>>> PW draft would be required). Thus, we are free to make up the rules. >>>> >>>> Note that I'm still pretty much in agreement that we don't need an >>> MPLS >>>> PW to run MPLS over MPLS-TP (I'm still awaiting further arguments >> from >>>> Stewart or anyone else that wants to argue in favor of using a PW). >>>> >>>> However, I do think that we would need an MPLS-TP PW if we wanted to >>> run >>>> MPLS-TP over MPLS (that came up last week as well). The primary > issue >>>> here is that MPLS-TP over MPLS would require in-order delivery, so > it >>>> has to avoid ECMP. >>>> >>>> Cheers, >>>> Andy >>>> >>>> -----Original Message----- >>>> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >>>> Sent: Monday, January 26, 2009 11:54 AM >>>> To: Malis, Andrew G. (Andy); stbryant@cisco.com >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Andy, >>>> >>>> Per RFC 4448, the control word is optional for Ethernet PWs, so its >>>> presence cannot be counted on. If it is present, the sequence > number >>>> field may be used so that the bottom sixteen bits may not be zero. >>>> >>>> Given that we are talking about a rogue implementation that does not >>>> respect the 'end of stack' bit, I don't see much utility. >>>> >>>> Thanks, >>>> >>>> John >>>> >>>>> -----Original Message----- >>>>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>>>> Sent: Monday, January 26, 2009 8:42 AM >>>>> To: stbryant@cisco.com; Drake, John E >>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod > HaSharon) >>>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> Stewart, >>>>> >>>>> Boy, talk about dredging up old emails ... >>>>> >>>>> I've been thinking some more about this issue since our >>>>> discussion last week in Ipswich. The question I asked there >>>>> was whether what we gain from putting a PW label and CW in the >>>>> stack to separate the MPLS-TP stack and the MPLS stack are >>>>> worth the cost: >>>>> >>>>> - 64 additional bits in the packet header (obviously) >>>>> - LDP signaling between the PW endpoints to distribute the PW label >>>>> >>>>> As I see it, what we gain is: >>>>> >>>>> - a clear demark (although you would get that as well with the S >> bit) >>>>> - a serial number so that the MPLS PW can be kept in-order >>>>> (although you have been arguing against using the serial >>>>> number in your last few >>>>> emails) >>>>> - a non-IP first nibble and a zero TTL in the CW (assuming >>>>> that a serial number is not used) to "poison the stack" in >>>>> case there's a provisioning problem >>>>> >>>>> So it really comes down to having the "poison" in the stack in >>>>> the unlikely case of a provisioning mismatch in an endpoint >>>>> switch. I'm still not convinced that it's worth the cost, >>>>> although I could possibly still be convinced. Are there any >>>>> other advantages that I've missed? >>>>> >>>>> Cheers, >>>>> Andy >>>>> >>>>> -----Original Message----- >>>>> From: mpls-interop-bounces@ietf.org >>>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart Bryant >>>>> Sent: Monday, January 26, 2009 11:26 AM >>>>> To: Drake, John E >>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod > HaSharon) >>>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> John >>>>>> >>>>>> JD: *Requiring* a PW header in order to transport an MPLS payload >>>>> over >>>>>> an MPLS LSP strikes me as an IQ test that one has failed. >>>>> >>>>> I always fail those - I take it to indicate a faulty test >>>>> methodology :) >>>>> >>>>> The CW will poison the packet anywhere other than where a CW >>>>> is expected. >>>>> >>>>> Stewart >>>>> _______________________________________________ >>>>> Mpls-interop mailing list >>>>> Mpls-interop@ietf.org >>>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>>> >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 27 17:12:47 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5AC323A69A9; Tue, 27 Jan 2009 17:12:47 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A86F33A69A9 for ; Tue, 27 Jan 2009 17:12:46 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.567 X-Spam-Level: X-Spam-Status: No, score=-6.567 tagged_above=-999 required=5 tests=[AWL=0.032, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xZQCHkZVZ5IN for ; Tue, 27 Jan 2009 17:12:45 -0800 (PST) Received: from slb-smtpout-01.boeing.com (slb-smtpout-01.boeing.com [130.76.64.48]) by core3.amsl.com (Postfix) with ESMTP id 3F6463A6B09 for ; Tue, 27 Jan 2009 17:12:45 -0800 (PST) Received: from blv-av-01.boeing.com (blv-av-01.boeing.com [130.247.48.231]) by slb-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0S1BrMi020880 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 27 Jan 2009 17:11:54 -0800 (PST) Received: from blv-av-01.boeing.com (localhost [127.0.0.1]) by blv-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0S1Br52029805; Tue, 27 Jan 2009 17:11:53 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by blv-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0S1Bq93029765; Tue, 27 Jan 2009 17:11:53 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 27 Jan 2009 17:11:52 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Tue, 27 Jan 2009 17:11:51 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016B750F@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: Acl/0tJ4BRstxxuuTLKgX1YWyDJj1AAALr9wAACo3eAAACy98AAB1dfjAAAns0AAAGj+fAAADo4gAAN20RkAPWVFcA== References: <51661468CBD1354294533DA79E85955A016704FB@XCH-SW-5V2.sw.nos.boeing.com> From: "Drake, John E" To: "George Swallow" , "Malis, Andrew G. (Andy)" , X-OriginalArrivalTime: 28 Jan 2009 01:11:52.0000 (UTC) FILETIME=[66F57C00:01C980E5] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" , neil.2.harrison@bt.com Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org >-----Original Message----- >From: George Swallow [mailto:swallow@cisco.com] >Sent: Monday, January 26, 2009 11:45 AM >To: Drake, John E; Malis, Andrew G. (Andy); stbryant@cisco.com >Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > > >On 1/26/09 1:15 PM, "Drake, John E" wrote: > >> >> >>> -----Original Message----- >>> From: George Swallow [mailto:swallow@cisco.com] >>> Sent: Monday, January 26, 2009 10:04 AM >>> To: Drake, John E; Malis, Andrew G. (Andy); stbryant@cisco.com >>> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod >HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> Several points here. >>> >>> First the reserve values you speak of are all reserved in the IP >>> Protocol number space. I do not believe that the powers >that be will >>> be very please with a proposal that says that we will use >values that >>> they may later define as a new IP version. >> >> JD: Then how was PW able to get the values '0' and '1'? > >We got the values reserved as part of getting the PW control >word RFC approved. There is no notation that these belong to >PW per se. It simply reserves them from ever being allocated. JD: So, are you saying that we can re-use them? > >>> Second, the we're okay happens only if I filter on the labels that >>> the client sends me. >> >> JD: Who is 'I' and who is 'client'? The endpoints will understand >> the labels they have allocated, and it keeps intermediate nodes from >> performing ECMP on MPLS payloads. > >The I is the server. If the server network wants to make sure >that nothing will arrive that could be mistaken for IP or PW >then it would need to filter what the client sends. JD: This issue would arise only if the client were to re-use one of the defined values in the first nibble of its label, and in that case the server would not be able to detect it. > >Also, I should note that current implementation of Label >allocators would not be happy with new restrictions on what >values can be used. Nor would most of us be happy about >reducing the label space by 25%. JD: I think it actually reduces the size of the label space by a factor of 16 (2**4), but who is counting? If we can say definitively that ECMP will never be deployed in an MPLS TP network, I would much prefer to go with using a reserved label at the bottom of the server stack, as proposed by Neil. > >...George > >>> I don't like the "better yet" as I want IP as well as MPLS. >> >> JD: If one takes the position that MPLS is part of IP, then >> allocating a nibble value to MPLS makes sense to me. It also >> addresses the issue you raised in your first paragraph, >above, as well >> as your point about running IP and MPLS (and PW) over the >same SP MPLS LSP. >> >>> >>> ...George >>> >>> >>> On 1/26/09 12:56 PM, "Drake, John E" > wrote: >>> >>>> George, >>>> >>>> Are we not okay as long as we ensure that the first nibble >of *any* >>>> client MPLS label does not have the values '0', '1', '4' >or '6'? Or >>>> better yet, define a new value that indicates 'payload is MPLS'? >>>> >>>> Thanks, >>>> >>>> John >>>> >>>>> -----Original Message----- >>>>> From: George Swallow [mailto:swallow@cisco.com] >>>>> Sent: Monday, January 26, 2009 9:48 AM >>>>> To: Malis, Andrew G. (Andy); Drake, John E; stbryant@cisco.com >>>>> Cc: mpls-interop@ietf.org; Weingarten, Yaacov (NSN - IL/Hod >>> HaSharon) >>>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> An MPLS PW is fine if you want to run MPLS-TP over MPLS or >>> MPLS-TP. >>>>> However if you want to run MPLS as it currently exists in 10s of >>>>> thousands of devices, then you need a PW that can carry >IP as well >>>>> as all the control and OAM depends on it. >>>>> >>>>> So whatever solution we get to needs to carry both MPLS and >>> IP. And >>>>> if that is the case then relying on EOS is a non-starter. >>>>> >>>>> ...George >>>>> >>>>> >>>>> On 1/26/09 12:01 PM, "Malis, Andrew G. (Andy)" >>>>> >>>>> wrote: >>>>> >>>>>> John, >>>>>> >>>>>> This would be for an MPLS PW, which we have not yet >defined (a new >>>>>> MPLS PW draft would be required). Thus, we are free to make >>>>> up the rules. >>>>>> >>>>>> Note that I'm still pretty much in agreement that we >don't need an >>>>>> MPLS PW to run MPLS over MPLS-TP (I'm still awaiting further >>>>> arguments >>>>>> from Stewart or anyone else that wants to argue in favor of >>>>> using a PW). >>>>>> >>>>>> However, I do think that we would need an MPLS-TP PW if we >>> wanted to >>>>>> run MPLS-TP over MPLS (that came up last week as well). >>> The primary >>>>>> issue here is that MPLS-TP over MPLS would require in-order >>>>> delivery, >>>>>> so it has to avoid ECMP. >>>>>> >>>>>> Cheers, >>>>>> Andy >>>>>> >>>>>> -----Original Message----- >>>>>> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >>>>>> Sent: Monday, January 26, 2009 11:54 AM >>>>>> To: Malis, Andrew G. (Andy); stbryant@cisco.com >>>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod >>> HaSharon) >>>>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>>>> >>>>>> Andy, >>>>>> >>>>>> Per RFC 4448, the control word is optional for Ethernet >>> PWs, so its >>>>>> presence cannot be counted on. If it is present, the >>>>> sequence number >>>>>> field may be used so that the bottom sixteen bits may >not be zero. >>>>>> >>>>>> Given that we are talking about a rogue implementation >>> that does not >>>>>> respect the 'end of stack' bit, I don't see much utility. >>>>>> >>>>>> Thanks, >>>>>> >>>>>> John >>>>>> >>>>>>> -----Original Message----- >>>>>>> From: Malis, Andrew G. (Andy) >[mailto:andrew.g.malis@verizon.com] >>>>>>> Sent: Monday, January 26, 2009 8:42 AM >>>>>>> To: stbryant@cisco.com; Drake, John E >>>>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod >>>>>>> HaSharon) >>>>>>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>>>>>> >>>>>>> Stewart, >>>>>>> >>>>>>> Boy, talk about dredging up old emails ... >>>>>>> >>>>>>> I've been thinking some more about this issue since our >>> discussion >>>>>>> last week in Ipswich. The question I asked there was >>>>> whether what we >>>>>>> gain from putting a PW label and CW in the stack to >separate the >>>>>>> MPLS-TP stack and the MPLS stack are worth the cost: >>>>>>> >>>>>>> - 64 additional bits in the packet header (obviously) >>>>>>> - LDP signaling between the PW endpoints to distribute >>> the PW label >>>>>>> >>>>>>> As I see it, what we gain is: >>>>>>> >>>>>>> - a clear demark (although you would get that as well with >>>>> the S bit) >>>>>>> - a serial number so that the MPLS PW can be kept in-order >>>>> (although >>>>>>> you have been arguing against using the serial number in >>> your last >>>>>>> few >>>>>>> emails) >>>>>>> - a non-IP first nibble and a zero TTL in the CW >(assuming that a >>>>>>> serial number is not used) to "poison the stack" in case >>> there's a >>>>>>> provisioning problem >>>>>>> >>>>>>> So it really comes down to having the "poison" in the >>> stack in the >>>>>>> unlikely case of a provisioning mismatch in an endpoint >>> switch. I'm >>>>>>> still not convinced that it's worth the cost, although I could >>>>>>> possibly still be convinced. Are there any other advantages >>>>> that I've >>>>>>> missed? >>>>>>> >>>>>>> Cheers, >>>>>>> Andy >>>>>>> >>>>>>> -----Original Message----- >>>>>>> From: mpls-interop-bounces@ietf.org >>>>>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Stewart >>>>>>> Bryant >>>>>>> Sent: Monday, January 26, 2009 11:26 AM >>>>>>> To: Drake, John E >>>>>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod >>>>>>> HaSharon) >>>>>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>>>>> >>>>>>> John >>>>>>>> >>>>>>>> JD: *Requiring* a PW header in order to transport an >>> MPLS payload >>>>>>> over >>>>>>>> an MPLS LSP strikes me as an IQ test that one has failed. >>>>>>> >>>>>>> I always fail those - I take it to indicate a faulty test >>>>> methodology >>>>>>> :) >>>>>>> >>>>>>> The CW will poison the packet anywhere other than where a CW is >>>>>>> expected. >>>>>>> >>>>>>> Stewart >>>>>>> _______________________________________________ >>>>>>> Mpls-interop mailing list >>>>>>> Mpls-interop@ietf.org >>>>>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>>>>> >>>>>> _______________________________________________ >>>>>> Mpls-interop mailing list >>>>>> Mpls-interop@ietf.org >>>>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>>> >>>>> >>> >>> > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Tue Jan 27 18:11:38 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0D6E53A6901; Tue, 27 Jan 2009 18:11:38 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 84C3D3A6953 for ; Tue, 27 Jan 2009 18:11:37 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ry4kQD2AwqcQ for ; Tue, 27 Jan 2009 18:11:36 -0800 (PST) Received: from exprod7og113.obsmtp.com (exprod7og113.obsmtp.com [64.18.2.179]) by core3.amsl.com (Postfix) with ESMTP id E3F333A6901 for ; Tue, 27 Jan 2009 18:11:28 -0800 (PST) Received: from source ([66.129.224.36]) (using TLSv1) by exprod7ob113.postini.com ([64.18.6.12]) with SMTP ID DSNKSX++vjntxbNRHry6HAeH2f4JydQUTihy@postini.com; Tue, 27 Jan 2009 18:11:19 PST Received: from p-emfe01-sac.jnpr.net (66.129.254.71) by P-EMHUB01-HQ.jnpr.net (172.24.192.35) with Microsoft SMTP Server id 8.1.336.0; Tue, 27 Jan 2009 18:09:12 -0800 Received: from p-emlb02-sac.jnpr.net ([66.129.254.47]) by p-emfe01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Tue, 27 Jan 2009 18:09:12 -0800 Received: from emailsmtp56.jnpr.net ([172.24.60.77]) by p-emlb02-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Tue, 27 Jan 2009 18:09:11 -0800 Received: from magenta.juniper.net ([172.17.27.123]) by emailsmtp56.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Tue, 27 Jan 2009 18:09:10 -0800 Received: from sapphire.juniper.net (sapphire.juniper.net [172.17.28.108]) by magenta.juniper.net (8.11.3/8.11.3) with ESMTP id n0S29AM14506; Tue, 27 Jan 2009 18:09:10 -0800 (PST) (envelope-from rahul@juniper.net) Date: Tue, 27 Jan 2009 18:09:10 -0800 From: Rahul Aggarwal To: mpls-interop@ietf.org In-Reply-To: Message-ID: <20090127180128.T76169@sapphire.juniper.net> References: MIME-Version: 1.0 X-OriginalArrivalTime: 28 Jan 2009 02:09:10.0878 (UTC) FILETIME=[68B09FE0:01C980ED] Cc: "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi All, Why is it not possible to use LSP hierarchy for carrying MPLS over MPLS-TP? The client MPLS LSP would be carried in a server MPLS-TP LSP using LSP hierarchy. Why can't this be the default behavior? rahul _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 05:25:18 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B38443A6B9A; Wed, 28 Jan 2009 05:25:16 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 76FB43A6A91 for ; Wed, 28 Jan 2009 05:25:12 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.824 X-Spam-Level: X-Spam-Status: No, score=-3.824 tagged_above=-999 required=5 tests=[AWL=-1.225, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id AvHDX6eRYqwi for ; Wed, 28 Jan 2009 05:25:11 -0800 (PST) Received: from demumfd002.nsn-inter.net (demumfd002.nsn-inter.net [217.115.75.234]) by core3.amsl.com (Postfix) with ESMTP id AC1193A6813 for ; Wed, 28 Jan 2009 05:25:10 -0800 (PST) Received: from demuprx016.emea.nsn-intra.net ([10.150.129.55]) by demumfd002.nsn-inter.net (8.12.11.20060308/8.12.11) with ESMTP id n0SDOpJ2000668 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 28 Jan 2009 14:24:51 +0100 Received: from demuexc024.nsn-intra.net (demuexc024.nsn-intra.net [10.159.32.11]) by demuprx016.emea.nsn-intra.net (8.12.11.20060308/8.12.11) with ESMTP id n0SDOor6025780; Wed, 28 Jan 2009 14:24:51 +0100 Received: from DEMUEXC014.nsn-intra.net ([10.150.128.25]) by demuexc024.nsn-intra.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 14:24:50 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 14:24:49 +0100 Message-ID: <077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net> In-Reply-To: <20090127180128.T76169@sapphire.juniper.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmA7bdFmcI4k2/KSreGbDt6dNVhZgAXgODg References: <20090127180128.T76169@sapphire.juniper.net> From: "Sprecher, Nurit (NSN - IL/Hod HaSharon)" To: "ext Rahul Aggarwal" , X-OriginalArrivalTime: 28 Jan 2009 13:24:50.0421 (UTC) FILETIME=[CC23FA50:01C9814B] Cc: "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Better demarcation between the MPLS and the MPLS-TP layers.... -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Rahul Aggarwal Sent: Wednesday, January 28, 2009 04:09 To: mpls-interop@ietf.org Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Hi All, Why is it not possible to use LSP hierarchy for carrying MPLS over MPLS-TP? The client MPLS LSP would be carried in a server MPLS-TP LSP using LSP hierarchy. Why can't this be the default behavior? rahul _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 06:33:39 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 386063A69EB; Wed, 28 Jan 2009 06:33:39 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BD6E13A6A8E for ; Wed, 28 Jan 2009 06:33:37 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.4 X-Spam-Level: X-Spam-Status: No, score=-10.4 tagged_above=-999 required=5 tests=[AWL=0.199, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id REYQ0+pMimuo for ; Wed, 28 Jan 2009 06:33:36 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 740EB3A69EB for ; Wed, 28 Jan 2009 06:33:36 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,338,1231113600"; d="scan'208";a="32187818" Received: from ams-dkim-2.cisco.com ([144.254.224.139]) by ams-iport-1.cisco.com with ESMTP; 28 Jan 2009 14:33:17 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0SEXHoC029136; Wed, 28 Jan 2009 15:33:17 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0SEXH5j012156; Wed, 28 Jan 2009 14:33:17 GMT Received: from dhcp-gpk02-vlan300-64-103-65-52.cisco.com (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0SEXDM06250; Wed, 28 Jan 2009 14:33:15 GMT Message-ID: <49806CA9.2040601@cisco.com> Date: Wed, 28 Jan 2009 14:33:13 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: Rahul Aggarwal References: <20090127180128.T76169@sapphire.juniper.net> In-Reply-To: <20090127180128.T76169@sapphire.juniper.net> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=539; t=1233153197; x=1234017197; c=relaxed/simple; s=amsdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=v/OXUDwH/zuIw118b35iOMZl/kdTTpQz1LR0DQiCNUs=; b=wLDRf2oUMbZtT62ulsfq2gwj32/sIJEA2f5geldMmE8M361AUB2Yie69eH lyDzJG9gY6LMKGrHWgnnHH4ztqQ51ogLDIOdzJiqKEoPhnsiNJiZ5WJLnBvt jK8fctzHXd; Authentication-Results: ams-dkim-2; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim2001 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Rahul Aggarwal wrote: > Hi All, > > Why is it not possible to use LSP hierarchy for carrying MPLS > over MPLS-TP? The client MPLS LSP would be carried in a server MPLS-TP LSP > using LSP hierarchy. Why can't this be the default behavior? > > rahul > > > > Rahul You do not just have MPLS traffic between a pair of MPLS LSRs. You have: IP traffic for control and OAM, routing traffic which may be carried in IP or may be carried over the datalink as in ISIS, you may have CDP or your oen variant etc etc. Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 08:59:24 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9E1393A69CB; Wed, 28 Jan 2009 08:59:24 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 70FA93A69EB for ; Wed, 28 Jan 2009 08:59:23 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.568 X-Spam-Level: X-Spam-Status: No, score=-6.568 tagged_above=-999 required=5 tests=[AWL=0.031, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QCqP+ONtOSJf for ; Wed, 28 Jan 2009 08:59:22 -0800 (PST) Received: from stl-smtpout-01.boeing.com (stl-smtpout-01.boeing.com [130.76.96.56]) by core3.amsl.com (Postfix) with ESMTP id 9D7C53A69CB for ; Wed, 28 Jan 2009 08:59:22 -0800 (PST) Received: from blv-av-01.boeing.com (blv-av-01.boeing.com [130.247.48.231]) by stl-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0SGwnaU012692 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 28 Jan 2009 10:58:50 -0600 (CST) Received: from blv-av-01.boeing.com (localhost [127.0.0.1]) by blv-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0SGwnf5008944; Wed, 28 Jan 2009 08:58:49 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by blv-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0SGwiBf008776; Wed, 28 Jan 2009 08:58:48 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 08:58:47 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 08:58:47 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <49806CA9.2040601@cisco.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBVV4xojfY8FDGTWGqC1dzEK2o0wAE6LQA References: <20090127180128.T76169@sapphire.juniper.net> <49806CA9.2040601@cisco.com> From: "Drake, John E" To: , "Rahul Aggarwal" X-OriginalArrivalTime: 28 Jan 2009 16:58:47.0945 (UTC) FILETIME=[AFE6AF90:01C98169] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Stewart, If the client and server agree to share the same stack, there is no reason that this would not work. As an existence proof, we have MPLS and non-MPLS traffic sharing links today. Thanks, John >-----Original Message----- >From: Stewart Bryant [mailto:stbryant@cisco.com] >Sent: Wednesday, January 28, 2009 6:33 AM >To: Rahul Aggarwal >Cc: mpls-interop@ietf.org; Malis, Andrew G. (Andy); Drake, >John E; Weingarten, Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Rahul Aggarwal wrote: >> Hi All, >> >> Why is it not possible to use LSP hierarchy for carrying MPLS over >> MPLS-TP? The client MPLS LSP would be carried in a server >MPLS-TP LSP >> using LSP hierarchy. Why can't this be the default behavior? >> >> rahul >> >> >> >> >Rahul > >You do not just have MPLS traffic between a pair of MPLS LSRs. > >You have: IP traffic for control and OAM, routing traffic >which may be carried in IP or may be carried over the datalink >as in ISIS, you may have CDP or your oen variant etc etc. > >Stewart > > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 09:07:53 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BF88828C176; Wed, 28 Jan 2009 09:07:53 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 05F7328C1D0 for ; Wed, 28 Jan 2009 09:07:53 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[AWL=0.000, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id yavtc8Te657P for ; Wed, 28 Jan 2009 09:07:52 -0800 (PST) Received: from exprod7og108.obsmtp.com (exprod7og108.obsmtp.com [64.18.2.169]) by core3.amsl.com (Postfix) with ESMTP id 37D6828C176 for ; Wed, 28 Jan 2009 09:07:52 -0800 (PST) Received: from source ([66.129.224.36]) (using TLSv1) by exprod7ob108.postini.com ([64.18.6.12]) with SMTP ID DSNKSYCQ1MFm9/0RQeZrPHHjzPi6w21ZXg9+@postini.com; Wed, 28 Jan 2009 09:07:34 PST Received: from p-emfe01-sac.jnpr.net (66.129.254.72) by P-EMHUB01-HQ.jnpr.net (172.24.192.35) with Microsoft SMTP Server id 8.1.336.0; Wed, 28 Jan 2009 09:05:14 -0800 Received: from p-emlb01-sac.jnpr.net ([66.129.254.46]) by p-emfe01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 09:05:14 -0800 Received: from emailsmtp56.jnpr.net ([172.24.60.77]) by p-emlb01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 09:05:14 -0800 Received: from magenta.juniper.net ([172.17.27.123]) by emailsmtp56.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 09:05:13 -0800 Received: from sapphire.juniper.net (sapphire.juniper.net [172.17.28.108]) by magenta.juniper.net (8.11.3/8.11.3) with ESMTP id n0SH5EM03476; Wed, 28 Jan 2009 09:05:14 -0800 (PST) (envelope-from rahul@juniper.net) Date: Wed, 28 Jan 2009 09:05:14 -0800 From: Rahul Aggarwal To: "Sprecher, Nurit (NSN - IL/Hod HaSharon)" In-Reply-To: <077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net> Message-ID: <20090128090426.V76169@sapphire.juniper.net> References: <20090127180128.T76169@sapphire.juniper.net> <077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net> MIME-Version: 1.0 X-OriginalArrivalTime: 28 Jan 2009 17:05:13.0852 (UTC) FILETIME=[95EB6BC0:01C9816A] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi Nurit, On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > Better demarcation between the MPLS and the MPLS-TP layers.... > What precisely is meant by "better demarcation"? rahul > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Rahul Aggarwal > Sent: Wednesday, January 28, 2009 04:09 > To: mpls-interop@ietf.org > Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > Hi All, > > Why is it not possible to use LSP hierarchy for carrying MPLS > over MPLS-TP? The client MPLS LSP would be carried in a server MPLS-TP > LSP > using LSP hierarchy. Why can't this be the default behavior? > > rahul > > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 10:48:46 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 395F33A67FF; Wed, 28 Jan 2009 10:48:46 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5D2A73A6805 for ; Wed, 28 Jan 2009 10:48:45 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.579 X-Spam-Level: X-Spam-Status: No, score=-6.579 tagged_above=-999 required=5 tests=[AWL=0.020, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id eiWzFV+tac9G for ; Wed, 28 Jan 2009 10:48:44 -0800 (PST) Received: from imr2.ericy.com (imr2.ericy.com [198.24.6.3]) by core3.amsl.com (Postfix) with ESMTP id 87F3B3A67FF for ; Wed, 28 Jan 2009 10:48:44 -0800 (PST) Received: from eusrcmw750.eamcs.ericsson.se (eusrcmw750.exu.ericsson.se [138.85.77.50]) by imr2.ericy.com (8.13.1/8.13.1) with ESMTP id n0SImQ2T016743; Wed, 28 Jan 2009 12:48:26 -0600 Received: from eusrcmw721.eamcs.ericsson.se ([138.85.77.21]) by eusrcmw750.eamcs.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 12:48:25 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 12:48:24 -0600 Message-ID: <941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> In-Reply-To: <20090128090426.V76169@sapphire.juniper.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBawLiB4mVfM3JQg+2MHhOAfQerAADXLug References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net> <20090128090426.V76169@sapphire.juniper.net> From: "Eric Gray" To: "Rahul Aggarwal" , "Sprecher, Nurit (NSN - IL/Hod HaSharon)" X-OriginalArrivalTime: 28 Jan 2009 18:48:25.0709 (UTC) FILETIME=[008DD1D0:01C98179] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Rahul, For one thing, as is implied in Stewart's response, we don't have a mechanism for indicating that MPLS is being transported over MPLS-TP (like we do for MPLS over PPP, ATM, FR and Ethernet). If we need to also transport "other stuff" over the same MPLS-TP LSP, then we need to have a way to demux the MPLS tarffic from "other stuff." Otherwise, we would need to have separate MPLS-TP LSPs to transport separate traffic types... -- Eric -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal Sent: Wednesday, January 28, 2009 12:05 PM To: Sprecher, Nurit (NSN - IL/Hod HaSharon) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Hi Nurit, On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > Better demarcation between the MPLS and the MPLS-TP layers.... > What precisely is meant by "better demarcation"? rahul > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Rahul Aggarwal > Sent: Wednesday, January 28, 2009 04:09 > To: mpls-interop@ietf.org > Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > Hi All, > > Why is it not possible to use LSP hierarchy for carrying MPLS > over MPLS-TP? The client MPLS LSP would be carried in a server MPLS-TP > LSP > using LSP hierarchy. Why can't this be the default behavior? > > rahul > > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 11:10:33 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 134B13A6A28; Wed, 28 Jan 2009 11:10:33 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 84AFA3A6B5D for ; Wed, 28 Jan 2009 11:10:31 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2faSWoKb53-i for ; Wed, 28 Jan 2009 11:10:29 -0800 (PST) Received: from exprod7og113.obsmtp.com (exprod7og113.obsmtp.com [64.18.2.179]) by core3.amsl.com (Postfix) with ESMTP id 87AE03A6904 for ; Wed, 28 Jan 2009 11:10:28 -0800 (PST) Received: from source ([66.129.224.36]) (using TLSv1) by exprod7ob113.postini.com ([64.18.6.12]) with SMTP ID DSNKSYCtg7gBmcI1zr3hadJ1AqXWRo9q6RmA@postini.com; Wed, 28 Jan 2009 11:10:11 PST Received: from p-emfe01-sac.jnpr.net (66.129.254.72) by P-EMHUB01-HQ.jnpr.net (172.24.192.35) with Microsoft SMTP Server id 8.1.336.0; Wed, 28 Jan 2009 11:07:08 -0800 Received: from p-emlb01-sac.jnpr.net ([66.129.254.46]) by p-emfe01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 11:07:08 -0800 Received: from emailsmtp55.jnpr.net ([172.24.18.132]) by p-emlb01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 11:07:08 -0800 Received: from magenta.juniper.net ([172.17.27.123]) by emailsmtp55.jnpr.net with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 11:07:07 -0800 Received: from sapphire.juniper.net (sapphire.juniper.net [172.17.28.108]) by magenta.juniper.net (8.11.3/8.11.3) with ESMTP id n0SJ77M91814; Wed, 28 Jan 2009 11:07:07 -0800 (PST) (envelope-from rahul@juniper.net) Date: Wed, 28 Jan 2009 11:07:07 -0800 From: Rahul Aggarwal To: Eric Gray In-Reply-To: <941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> Message-ID: <20090128110456.A76169@sapphire.juniper.net> References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net> <20090128090426.V76169@sapphire.juniper.net> <941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> MIME-Version: 1.0 X-OriginalArrivalTime: 28 Jan 2009 19:07:07.0755 (UTC) FILETIME=[9D5873B0:01C9817B] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi Eric, On Wed, 28 Jan 2009, Eric Gray wrote: > Rahul, > > For one thing, as is implied in Stewart's response, we don't > have a mechanism for indicating that MPLS is being transported over > MPLS-TP (like we do for MPLS over PPP, ATM, FR and Ethernet). If > we need to also transport "other stuff" over the same MPLS-TP LSP, > then we need to have a way to demux the MPLS tarffic from "other > stuff." Otherwise, we would need to have separate MPLS-TP LSPs to > transport separate traffic types... > Why is it not sufficient to use the same existing mechanisms that allow a MPLS LSP to transport another MPLS LSP or a PW or an IP packet? rahul > -- > Eric > > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal > Sent: Wednesday, January 28, 2009 12:05 PM > To: Sprecher, Nurit (NSN - IL/Hod HaSharon) > Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > Hi Nurit, > > On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > > > Better demarcation between the MPLS and the MPLS-TP layers.... > > > > What precisely is meant by "better demarcation"? > > rahul > > > -----Original Message----- > > From: mpls-interop-bounces@ietf.org > > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Rahul Aggarwal > > Sent: Wednesday, January 28, 2009 04:09 > > To: mpls-interop@ietf.org > > Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) > > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > > > > Hi All, > > > > Why is it not possible to use LSP hierarchy for carrying MPLS > > over MPLS-TP? The client MPLS LSP would be carried in a server MPLS-TP > > LSP > > using LSP hierarchy. Why can't this be the default behavior? > > > > rahul > > > > > > _______________________________________________ > > Mpls-interop mailing list > > Mpls-interop@ietf.org > > https://www.ietf.org/mailman/listinfo/mpls-interop > > > > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 11:30:42 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2F9813A67DF; Wed, 28 Jan 2009 11:30:42 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9E01F3A67DF for ; Wed, 28 Jan 2009 11:30:41 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[AWL=0.000, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kolr0MBmoqBu for ; Wed, 28 Jan 2009 11:30:37 -0800 (PST) Received: from exprod7og106.obsmtp.com (exprod7og106.obsmtp.com [64.18.2.165]) by core3.amsl.com (Postfix) with ESMTP id C22DE3A6A80 for ; Wed, 28 Jan 2009 11:30:37 -0800 (PST) Received: from source ([66.129.224.36]) (using TLSv1) by exprod7ob106.postini.com ([64.18.6.12]) with SMTP ID DSNKSYCyFcF1fA0ypxGTeveoacv4DqRHl8kf@postini.com; Wed, 28 Jan 2009 11:30:20 PST Received: from p-emfe01-sac.jnpr.net (66.129.254.72) by P-EMHUB01-HQ.jnpr.net (172.24.192.35) with Microsoft SMTP Server id 8.1.336.0; Wed, 28 Jan 2009 11:26:22 -0800 Received: from p-emlb01-sac.jnpr.net ([66.129.254.46]) by p-emfe01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 11:26:21 -0800 Received: from emailsmtp56.jnpr.net ([172.24.60.77]) by p-emlb01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 11:26:21 -0800 Received: from magenta.juniper.net ([172.17.27.123]) by emailsmtp56.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 11:26:20 -0800 Received: from sapphire.juniper.net (sapphire.juniper.net [172.17.28.108]) by magenta.juniper.net (8.11.3/8.11.3) with ESMTP id n0SJQIM02350; Wed, 28 Jan 2009 11:26:18 -0800 (PST) (envelope-from rahul@juniper.net) Date: Wed, 28 Jan 2009 11:26:18 -0800 From: Rahul Aggarwal To: "Drake, John E" In-Reply-To: <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> Message-ID: <20090128112503.B76169@sapphire.juniper.net> References: <20090127180128.T76169@sapphire.juniper.net> <49806CA9.2040601@cisco.com> <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> MIME-Version: 1.0 X-OriginalArrivalTime: 28 Jan 2009 19:26:20.0721 (UTC) FILETIME=[4C911A10:01C9817E] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi John, On Wed, 28 Jan 2009, Drake, John E wrote: > Stewart, > > If the client and server agree to share the same stack, there is no > reason that this would not work. As an existence proof, we have MPLS > and non-MPLS traffic sharing links today. > Agreed!! rahul > Thanks, > > John > > >-----Original Message----- > >From: Stewart Bryant [mailto:stbryant@cisco.com] > >Sent: Wednesday, January 28, 2009 6:33 AM > >To: Rahul Aggarwal > >Cc: mpls-interop@ietf.org; Malis, Andrew G. (Andy); Drake, > >John E; Weingarten, Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Rahul Aggarwal wrote: > >> Hi All, > >> > >> Why is it not possible to use LSP hierarchy for carrying MPLS over > >> MPLS-TP? The client MPLS LSP would be carried in a server > >MPLS-TP LSP > >> using LSP hierarchy. Why can't this be the default behavior? > >> > >> rahul > >> > >> > >> > >> > >Rahul > > > >You do not just have MPLS traffic between a pair of MPLS LSRs. > > > >You have: IP traffic for control and OAM, routing traffic > >which may be carried in IP or may be carried over the datalink > >as in ISIS, you may have CDP or your oen variant etc etc. > > > >Stewart > > > > > > > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 11:32:36 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4BEC73A67DF; Wed, 28 Jan 2009 11:32:36 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E483B3A67DF for ; Wed, 28 Jan 2009 11:32:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.449 X-Spam-Level: X-Spam-Status: No, score=-2.449 tagged_above=-999 required=5 tests=[AWL=0.150, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jTPQ+YxXLCAn for ; Wed, 28 Jan 2009 11:32:34 -0800 (PST) Received: from sacmail2.verizon.com (sacmail2.verizon.com [192.76.84.41]) by core3.amsl.com (Postfix) with ESMTP id EC8333A6988 for ; Wed, 28 Jan 2009 11:32:33 -0800 (PST) Received: from smtpftw3.verizon.com (smtpftw3.verizon.com [138.83.140.92]) by sacmail2.verizon.com (8.13.7+Sun/8.13.3) with ESMTP id n0SJVrsv028626; Wed, 28 Jan 2009 14:31:54 -0500 (EST) Received: from ftwintrmemf2.verizon.com (ftwintrmemf2.verizon.com [138.83.131.184]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0SJVr3p018817; Wed, 28 Jan 2009 14:31:53 -0500 (EST) Received: from ftwintrmemf2.verizon.com (unknown [127.0.0.1]) by ftwintrmemf2.verizon.com (Symantec Mail Security) with ESMTP id 61A21528003; Wed, 28 Jan 2009 14:31:53 -0500 (EST) X-AuditID: 8a5383b8-a36bbbb000000647-23-4980b2a9e5e9 Received: from smtptpa3.verizon.com (unknown [138.83.71.176]) by ftwintrmemf2.verizon.com (EMF) with ESMTP id 2BB6C4E4002; Wed, 28 Jan 2009 14:31:53 -0500 (EST) Received: from FHDP1CCMXCG01.us.one.verizon.com ([166.68.240.33]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0SJVevY015857; Wed, 28 Jan 2009 14:31:52 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG01.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 14:31:48 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 14:30:54 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: <941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBawLiB4mVfM3JQg+2MHhOAfQerAADXLugAAC6fjA= References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net> <941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> From: "Malis, Andrew G. (Andy)" To: "Eric Gray" , "Rahul Aggarwal" , "Sprecher, Nurit (NSN - IL/Hod HaSharon)" X-OriginalArrivalTime: 28 Jan 2009 19:31:48.0970 (UTC) FILETIME=[1037ECA0:01C9817F] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Eric and Rahul, That's a perfect introduction to relating a discussion that Stewart, George, and I had on the phone today where we talked out a lot of these issues. If you want to use an MPLS-TP transport pipe to interconnect a pair of routers in order replace current inter-router links that currently use PoS or Ethernet for framing and protocol delineation, then you need to be able to transport everything that gets trunked between routers now - not just MPLS packets, but also unlabeled IP, CLNP for IS-IS, private protocols, and so on. So just a label stack with the S bit, or using label hierarchy is insufficient, since we'll never interconnect routers with ONLY MPLS, and operators require a clear demarcation between provider and client protocol headers for a number of operational and in some cases regulatory reasons. We talked about various alternatives for the demarcation. It's obvious that you could use an Ethernet or PPP PW, since both Ethernet and PPP are currently used for router interconnection, but we would like to avoid the baggage and overhead that goes along with them. So our thinking is to write a new PWE3 draft for an efficient generic PW that includes a protocol ID (from PPP) in the control word. Note that defining a generic PW is already in the PWE3 charter. That will give us a nice efficient demarcation point between the provider and client, and it uses an already existing protocol registry (PPP protocol IDs). Cheers, Andy -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray Sent: Wednesday, January 28, 2009 1:48 PM To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Rahul, For one thing, as is implied in Stewart's response, we don't have a mechanism for indicating that MPLS is being transported over MPLS-TP (like we do for MPLS over PPP, ATM, FR and Ethernet). If we need to also transport "other stuff" over the same MPLS-TP LSP, then we need to have a way to demux the MPLS tarffic from "other stuff." Otherwise, we would need to have separate MPLS-TP LSPs to transport separate traffic types... -- Eric -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal Sent: Wednesday, January 28, 2009 12:05 PM To: Sprecher, Nurit (NSN - IL/Hod HaSharon) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Hi Nurit, On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > Better demarcation between the MPLS and the MPLS-TP layers.... > What precisely is meant by "better demarcation"? rahul > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Rahul Aggarwal > Sent: Wednesday, January 28, 2009 04:09 > To: mpls-interop@ietf.org > Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > Hi All, > > Why is it not possible to use LSP hierarchy for carrying MPLS > over MPLS-TP? The client MPLS LSP would be carried in a server MPLS-TP > LSP > using LSP hierarchy. Why can't this be the default behavior? > > rahul > > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 11:35:39 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5B78E3A67DF; Wed, 28 Jan 2009 11:35:39 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 40E5B3A6988 for ; Wed, 28 Jan 2009 11:35:38 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.58 X-Spam-Level: X-Spam-Status: No, score=-6.58 tagged_above=-999 required=5 tests=[AWL=0.019, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id e39HCFY3exRz for ; Wed, 28 Jan 2009 11:35:37 -0800 (PST) Received: from imr1.ericy.com (imr1.ericy.com [198.24.6.9]) by core3.amsl.com (Postfix) with ESMTP id 492D23A67DF for ; Wed, 28 Jan 2009 11:35:37 -0800 (PST) Received: from eusrcmw751.eamcs.ericsson.se (eusrcmw751.exu.ericsson.se [138.85.77.51]) by imr1.ericy.com (8.13.1/8.13.1) with ESMTP id n0SJesNC008561; Wed, 28 Jan 2009 13:40:58 -0600 Received: from eusrcmw721.eamcs.ericsson.se ([138.85.77.21]) by eusrcmw751.eamcs.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 13:35:16 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 13:35:15 -0600 Message-ID: <941D5DCD8C42014FAF70FB7424686DCF0487DCAA@eusrcmw721.eamcs.ericsson.se> In-Reply-To: <20090128110456.A76169@sapphire.juniper.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBe8Z4jaqkrjh5SQ2FIPjpM3buMQAAU9Kw References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net> <20090128090426.V76169@sapphire.juniper.net> <941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <20090128110456.A76169@sapphire.juniper.net> From: "Eric Gray" To: "Rahul Aggarwal" X-OriginalArrivalTime: 28 Jan 2009 19:35:16.0168 (UTC) FILETIME=[8BB7D480:01C9817F] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Rahul, Well, I might be a little weak on the subject of how an LSR knows the difference between LSP/LSP verses PW/LSP - except at the end points of the transported LSP or PW (where the terminating LSR is presumed to know what it is dealing with). But the difference here is that your talking about things in an inverted order. We can distinguish LSP over LSP from IP over LSP both by the BoS bit and the label. In this case, MPLS/MPLS-TP is what we are talking about (i.e. - an MPLS-TP transport service might be used to transport an MPLS LSP, OAM traffic, and maybe one or more PWs or IP packets). Because we can't be sure now that an MPLS-TP LSP will be exactly the same as any other LSP, transporting an MPLS-TP LSP over an MPLS LSP MUST be considered (at least at this point) as potentially different from transporting an MPLS LSP over an MPLS-TP LSP. -- Eric -----Original Message----- From: Rahul Aggarwal [mailto:rahul@juniper.net] Sent: Wednesday, January 28, 2009 2:07 PM To: Eric Gray Cc: Sprecher, Nurit (NSN - IL/Hod HaSharon); mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: RE: [Mpls-interop] MPLS over MPLS-TP Importance: High Hi Eric, On Wed, 28 Jan 2009, Eric Gray wrote: > Rahul, > > For one thing, as is implied in Stewart's response, we don't > have a mechanism for indicating that MPLS is being transported over > MPLS-TP (like we do for MPLS over PPP, ATM, FR and Ethernet). If > we need to also transport "other stuff" over the same MPLS-TP LSP, > then we need to have a way to demux the MPLS tarffic from "other > stuff." Otherwise, we would need to have separate MPLS-TP LSPs to > transport separate traffic types... > Why is it not sufficient to use the same existing mechanisms that allow a MPLS LSP to transport another MPLS LSP or a PW or an IP packet? rahul > -- > Eric > > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal > Sent: Wednesday, January 28, 2009 12:05 PM > To: Sprecher, Nurit (NSN - IL/Hod HaSharon) > Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > Hi Nurit, > > On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > > > Better demarcation between the MPLS and the MPLS-TP layers.... > > > > What precisely is meant by "better demarcation"? > > rahul > > > -----Original Message----- > > From: mpls-interop-bounces@ietf.org > > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Rahul Aggarwal > > Sent: Wednesday, January 28, 2009 04:09 > > To: mpls-interop@ietf.org > > Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) > > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > > > > Hi All, > > > > Why is it not possible to use LSP hierarchy for carrying MPLS > > over MPLS-TP? The client MPLS LSP would be carried in a server MPLS-TP > > LSP > > using LSP hierarchy. Why can't this be the default behavior? > > > > rahul > > > > > > _______________________________________________ > > Mpls-interop mailing list > > Mpls-interop@ietf.org > > https://www.ietf.org/mailman/listinfo/mpls-interop > > > > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 11:38:01 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7EAD83A6988; Wed, 28 Jan 2009 11:38:01 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8CB033A6A80 for ; Wed, 28 Jan 2009 11:38:00 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.581 X-Spam-Level: X-Spam-Status: No, score=-6.581 tagged_above=-999 required=5 tests=[AWL=0.018, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id eyWHuZpGqZHL for ; Wed, 28 Jan 2009 11:37:59 -0800 (PST) Received: from imr2.ericy.com (imr2.ericy.com [198.24.6.3]) by core3.amsl.com (Postfix) with ESMTP id B77A53A6988 for ; Wed, 28 Jan 2009 11:37:59 -0800 (PST) Received: from eusrcmw751.eamcs.ericsson.se (eusrcmw751.exu.ericsson.se [138.85.77.51]) by imr2.ericy.com (8.13.1/8.13.1) with ESMTP id n0SJbYDJ026562; Wed, 28 Jan 2009 13:37:35 -0600 Received: from eusrcmw721.eamcs.ericsson.se ([138.85.77.21]) by eusrcmw751.eamcs.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 13:37:34 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 13:37:33 -0600 Message-ID: <941D5DCD8C42014FAF70FB7424686DCF0487DCB3@eusrcmw721.eamcs.ericsson.se> In-Reply-To: <20090128112503.B76169@sapphire.juniper.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBfuN0D0HUYZvAQbGJYGzwPJ9qYQAAL8VA References: <20090127180128.T76169@sapphire.juniper.net><49806CA9.2040601@cisco.com><51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> <20090128112503.B76169@sapphire.juniper.net> From: "Eric Gray" To: "Rahul Aggarwal" , "Drake, John E" X-OriginalArrivalTime: 28 Jan 2009 19:37:34.0524 (UTC) FILETIME=[DE2F47C0:01C9817F] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Again, this inverted. We have MPLS and non-MPLS traffic sharing links where demuxing is defined for this capability (i.e. - PPP, Ethernet, FR, ATM). -- Eric -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal Sent: Wednesday, January 28, 2009 2:26 PM To: Drake, John E Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Hi John, On Wed, 28 Jan 2009, Drake, John E wrote: > Stewart, > > If the client and server agree to share the same stack, there is no > reason that this would not work. As an existence proof, we have MPLS > and non-MPLS traffic sharing links today. > Agreed!! rahul > Thanks, > > John > > >-----Original Message----- > >From: Stewart Bryant [mailto:stbryant@cisco.com] > >Sent: Wednesday, January 28, 2009 6:33 AM > >To: Rahul Aggarwal > >Cc: mpls-interop@ietf.org; Malis, Andrew G. (Andy); Drake, > >John E; Weingarten, Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Rahul Aggarwal wrote: > >> Hi All, > >> > >> Why is it not possible to use LSP hierarchy for carrying MPLS over > >> MPLS-TP? The client MPLS LSP would be carried in a server > >MPLS-TP LSP > >> using LSP hierarchy. Why can't this be the default behavior? > >> > >> rahul > >> > >> > >> > >> > >Rahul > > > >You do not just have MPLS traffic between a pair of MPLS LSRs. > > > >You have: IP traffic for control and OAM, routing traffic > >which may be carried in IP or may be carried over the datalink > >as in ISIS, you may have CDP or your oen variant etc etc. > > > >Stewart > > > > > > > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 11:39:44 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9A0CC3A67DF; Wed, 28 Jan 2009 11:39:44 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E21FE3A6988 for ; Wed, 28 Jan 2009 11:39:43 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.582 X-Spam-Level: X-Spam-Status: No, score=-6.582 tagged_above=-999 required=5 tests=[AWL=0.017, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MtiiS1F6BvIE for ; Wed, 28 Jan 2009 11:39:43 -0800 (PST) Received: from imr2.ericy.com (imr2.ericy.com [198.24.6.3]) by core3.amsl.com (Postfix) with ESMTP id D9AD13A67DF for ; Wed, 28 Jan 2009 11:39:42 -0800 (PST) Received: from eusrcmw750.eamcs.ericsson.se (eusrcmw750.exu.ericsson.se [138.85.77.50]) by imr2.ericy.com (8.13.1/8.13.1) with ESMTP id n0SJdObs026910; Wed, 28 Jan 2009 13:39:24 -0600 Received: from eusrcmw721.eamcs.ericsson.se ([138.85.77.21]) by eusrcmw750.eamcs.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 13:39:24 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 13:39:23 -0600 Message-ID: <941D5DCD8C42014FAF70FB7424686DCF0487DCBB@eusrcmw721.eamcs.ericsson.se> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBawLiB4mVfM3JQg+2MHhOAfQerAADXLugAAC6fjAAASbv4A== References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net> <941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> From: "Eric Gray" To: "Malis, Andrew G. (Andy)" , "Rahul Aggarwal" , "Sprecher, Nurit (NSN - IL/Hod HaSharon)" X-OriginalArrivalTime: 28 Jan 2009 19:39:24.0536 (UTC) FILETIME=[1FC1C780:01C98180] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Andy, Thanks! This is a very good example of what I was trying to get at... -- Eric -----Original Message----- From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] Sent: Wednesday, January 28, 2009 2:31 PM To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: RE: [Mpls-interop] MPLS over MPLS-TP Importance: High Eric and Rahul, That's a perfect introduction to relating a discussion that Stewart, George, and I had on the phone today where we talked out a lot of these issues. If you want to use an MPLS-TP transport pipe to interconnect a pair of routers in order replace current inter-router links that currently use PoS or Ethernet for framing and protocol delineation, then you need to be able to transport everything that gets trunked between routers now - not just MPLS packets, but also unlabeled IP, CLNP for IS-IS, private protocols, and so on. So just a label stack with the S bit, or using label hierarchy is insufficient, since we'll never interconnect routers with ONLY MPLS, and operators require a clear demarcation between provider and client protocol headers for a number of operational and in some cases regulatory reasons. We talked about various alternatives for the demarcation. It's obvious that you could use an Ethernet or PPP PW, since both Ethernet and PPP are currently used for router interconnection, but we would like to avoid the baggage and overhead that goes along with them. So our thinking is to write a new PWE3 draft for an efficient generic PW that includes a protocol ID (from PPP) in the control word. Note that defining a generic PW is already in the PWE3 charter. That will give us a nice efficient demarcation point between the provider and client, and it uses an already existing protocol registry (PPP protocol IDs). Cheers, Andy -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray Sent: Wednesday, January 28, 2009 1:48 PM To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Rahul, For one thing, as is implied in Stewart's response, we don't have a mechanism for indicating that MPLS is being transported over MPLS-TP (like we do for MPLS over PPP, ATM, FR and Ethernet). If we need to also transport "other stuff" over the same MPLS-TP LSP, then we need to have a way to demux the MPLS tarffic from "other stuff." Otherwise, we would need to have separate MPLS-TP LSPs to transport separate traffic types... -- Eric -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal Sent: Wednesday, January 28, 2009 12:05 PM To: Sprecher, Nurit (NSN - IL/Hod HaSharon) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Hi Nurit, On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > Better demarcation between the MPLS and the MPLS-TP layers.... > What precisely is meant by "better demarcation"? rahul > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext Rahul Aggarwal > Sent: Wednesday, January 28, 2009 04:09 > To: mpls-interop@ietf.org > Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > Hi All, > > Why is it not possible to use LSP hierarchy for carrying MPLS > over MPLS-TP? The client MPLS LSP would be carried in a server MPLS-TP > LSP > using LSP hierarchy. Why can't this be the default behavior? > > rahul > > > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 11:41:17 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A8B903A693C; Wed, 28 Jan 2009 11:41:17 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D439E3A67DF for ; Wed, 28 Jan 2009 11:41:16 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.568 X-Spam-Level: X-Spam-Status: No, score=-6.568 tagged_above=-999 required=5 tests=[AWL=0.031, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3O2QULdflfWG for ; Wed, 28 Jan 2009 11:41:14 -0800 (PST) Received: from blv-smtpout-01.boeing.com (blv-smtpout-01.boeing.com [130.76.32.69]) by core3.amsl.com (Postfix) with ESMTP id AA2023A693C for ; Wed, 28 Jan 2009 11:41:07 -0800 (PST) Received: from blv-av-01.boeing.com (blv-av-01.boeing.com [130.247.48.231]) by blv-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0SJeg9I007591 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 28 Jan 2009 11:40:42 -0800 (PST) Received: from blv-av-01.boeing.com (localhost [127.0.0.1]) by blv-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0SJegWF019778; Wed, 28 Jan 2009 11:40:42 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by blv-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0SJeeNm019681; Wed, 28 Jan 2009 11:40:42 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 11:40:37 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 11:40:36 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBawLiB4mVfM3JQg+2MHhOAfQerAADXLugAAC6fjAAAQ5/YA== References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> From: "Drake, John E" To: "Malis, Andrew G. (Andy)" , "Eric Gray" , "Rahul Aggarwal" , "Sprecher, Nurit (NSN - IL/Hod HaSharon)" X-OriginalArrivalTime: 28 Jan 2009 19:40:37.0336 (UTC) FILETIME=[4B262D80:01C98180] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Andy, What you write below is true *only* if there are separate client and server stacks. If the client and server share the same stack, you are dealing with plain vanilla MPLS, as I replied to Stewart. So, we only need to address the issue of carrying an MPLS payload if there is a requirement for separate client and server stacks, and I don't actually recall seeing such a requirement. Thanks, John >-----Original Message----- >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >Sent: Wednesday, January 28, 2009 11:31 AM >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Eric and Rahul, > >That's a perfect introduction to relating a discussion that >Stewart, George, and I had on the phone today where we talked >out a lot of these issues. > >If you want to use an MPLS-TP transport pipe to interconnect a >pair of routers in order replace current inter-router links >that currently use PoS or Ethernet for framing and protocol >delineation, then you need to be able to transport everything >that gets trunked between routers now - not just MPLS packets, >but also unlabeled IP, CLNP for IS-IS, private protocols, and >so on. So just a label stack with the S bit, or using label >hierarchy is insufficient, since we'll never interconnect >routers with ONLY MPLS, and operators require a clear >demarcation between provider and client protocol headers for a >number of operational and in some cases regulatory reasons. > >We talked about various alternatives for the demarcation. It's >obvious that you could use an Ethernet or PPP PW, since both >Ethernet and PPP are currently used for router >interconnection, but we would like to avoid the baggage and >overhead that goes along with them. So our thinking is to >write a new PWE3 draft for an efficient generic PW that >includes a protocol ID (from PPP) in the control word. Note >that defining a generic PW is already in the PWE3 charter. >That will give us a nice efficient demarcation point between >the provider and client, and it uses an already existing >protocol registry (PPP protocol IDs). > >Cheers, >Andy > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >Sent: Wednesday, January 28, 2009 1:48 PM >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Rahul, > > For one thing, as is implied in Stewart's response, we >don't have a mechanism for indicating that MPLS is being >transported over MPLS-TP (like we do for MPLS over PPP, ATM, >FR and Ethernet). If we need to also transport "other stuff" >over the same MPLS-TP LSP, then we need to have a way to demux >the MPLS tarffic from "other stuff." Otherwise, we would need >to have separate MPLS-TP LSPs to transport separate traffic types... > >-- >Eric > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >Sent: Wednesday, January 28, 2009 12:05 PM >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > >Hi Nurit, > >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > >> Better demarcation between the MPLS and the MPLS-TP layers.... >> > >What precisely is meant by "better demarcation"? > >rahul > >> -----Original Message----- >> From: mpls-interop-bounces@ietf.org >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >Rahul Aggarwal >> Sent: Wednesday, January 28, 2009 04:09 >> To: mpls-interop@ietf.org >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> >> Hi All, >> >> Why is it not possible to use LSP hierarchy for carrying MPLS over >> MPLS-TP? The client MPLS LSP would be carried in a server >MPLS-TP LSP >> using LSP hierarchy. Why can't this be the default behavior? >> >> rahul >> >> >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop >> >> >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 11:57:39 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id F02253A67DF; Wed, 28 Jan 2009 11:57:38 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1FDE33A6960 for ; Wed, 28 Jan 2009 11:57:38 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.454 X-Spam-Level: X-Spam-Status: No, score=-2.454 tagged_above=-999 required=5 tests=[AWL=0.145, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tpOvpzSR4C8c for ; Wed, 28 Jan 2009 11:57:37 -0800 (PST) Received: from tpamail2.verizon.com (tpamail2.verizon.com [192.76.82.136]) by core3.amsl.com (Postfix) with ESMTP id F01003A67DF for ; Wed, 28 Jan 2009 11:57:36 -0800 (PST) Received: from smtptpa3.verizon.com (smtptpa3.verizon.com [138.83.71.176]) by tpamail2.verizon.com (8.13.3/8.13.3) with ESMTP id n0SJvFTK018479; Wed, 28 Jan 2009 14:57:15 -0500 (EST) Received: from ftwccout01.verizon.com (ftwccout01.verizon.com [138.83.131.134]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0SJvF6g023324; Wed, 28 Jan 2009 14:57:15 -0500 (EST) Received: from ftwccout01.verizon.com (unknown [127.0.0.1]) by ftwccout01.verizon.com (Symantec Mail Security) with ESMTP id 27F1B528002; Wed, 28 Jan 2009 14:57:15 -0500 (EST) X-AuditID: 8a538386-ab4febb0000063b1-e7-4980b89a8ef1 Received: from smtptpa3.verizon.com (unknown [138.83.71.176]) by ftwccout01.verizon.com (EMF) with ESMTP id D7C1C4E4002; Wed, 28 Jan 2009 14:57:14 -0500 (EST) Received: from FHDP1CCMXCG02.us.one.verizon.com ([166.68.240.34]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0SJvCXI023184; Wed, 28 Jan 2009 14:57:14 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG02.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 14:57:14 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 14:56:46 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D9737BC9F8@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBawLiB4mVfM3JQg+2MHhOAfQerAADXLugAAC6fjAAAQ5/YAAAoXzA References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> From: "Malis, Andrew G. (Andy)" To: "Drake, John E" , "Eric Gray" , "Rahul Aggarwal" , "Sprecher, Nurit (NSN - IL/Hod HaSharon)" X-OriginalArrivalTime: 28 Jan 2009 19:57:14.0400 (UTC) FILETIME=[9D721200:01C98182] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org John, Looks like I have another requirement to make sure is in the requirements draft. :-) More seriously, at least speaking from a Verizon point of view, we do need a clear separation between client and provider stacks. That may not be true for all providers, but it is in our case. Cheers, Andy -----Original Message----- From: Drake, John E [mailto:John.E.Drake2@boeing.com] Sent: Wednesday, January 28, 2009 2:41 PM To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: RE: [Mpls-interop] MPLS over MPLS-TP Andy, What you write below is true *only* if there are separate client and server stacks. If the client and server share the same stack, you are dealing with plain vanilla MPLS, as I replied to Stewart. So, we only need to address the issue of carrying an MPLS payload if there is a requirement for separate client and server stacks, and I don't actually recall seeing such a requirement. Thanks, John >-----Original Message----- >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >Sent: Wednesday, January 28, 2009 11:31 AM >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Eric and Rahul, > >That's a perfect introduction to relating a discussion that >Stewart, George, and I had on the phone today where we talked >out a lot of these issues. > >If you want to use an MPLS-TP transport pipe to interconnect a >pair of routers in order replace current inter-router links >that currently use PoS or Ethernet for framing and protocol >delineation, then you need to be able to transport everything >that gets trunked between routers now - not just MPLS packets, >but also unlabeled IP, CLNP for IS-IS, private protocols, and >so on. So just a label stack with the S bit, or using label >hierarchy is insufficient, since we'll never interconnect >routers with ONLY MPLS, and operators require a clear >demarcation between provider and client protocol headers for a >number of operational and in some cases regulatory reasons. > >We talked about various alternatives for the demarcation. It's >obvious that you could use an Ethernet or PPP PW, since both >Ethernet and PPP are currently used for router >interconnection, but we would like to avoid the baggage and >overhead that goes along with them. So our thinking is to >write a new PWE3 draft for an efficient generic PW that >includes a protocol ID (from PPP) in the control word. Note >that defining a generic PW is already in the PWE3 charter. >That will give us a nice efficient demarcation point between >the provider and client, and it uses an already existing >protocol registry (PPP protocol IDs). > >Cheers, >Andy > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >Sent: Wednesday, January 28, 2009 1:48 PM >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Rahul, > > For one thing, as is implied in Stewart's response, we >don't have a mechanism for indicating that MPLS is being >transported over MPLS-TP (like we do for MPLS over PPP, ATM, >FR and Ethernet). If we need to also transport "other stuff" >over the same MPLS-TP LSP, then we need to have a way to demux >the MPLS tarffic from "other stuff." Otherwise, we would need >to have separate MPLS-TP LSPs to transport separate traffic types... > >-- >Eric > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >Sent: Wednesday, January 28, 2009 12:05 PM >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > >Hi Nurit, > >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > >> Better demarcation between the MPLS and the MPLS-TP layers.... >> > >What precisely is meant by "better demarcation"? > >rahul > >> -----Original Message----- >> From: mpls-interop-bounces@ietf.org >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >Rahul Aggarwal >> Sent: Wednesday, January 28, 2009 04:09 >> To: mpls-interop@ietf.org >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> >> Hi All, >> >> Why is it not possible to use LSP hierarchy for carrying MPLS over >> MPLS-TP? The client MPLS LSP would be carried in a server >MPLS-TP LSP >> using LSP hierarchy. Why can't this be the default behavior? >> >> rahul >> >> >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop >> >> >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 12:03:10 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5103A3A6A74; Wed, 28 Jan 2009 12:03:10 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 41FC728C10F for ; Wed, 28 Jan 2009 12:03:09 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vuu43D4XNGel for ; Wed, 28 Jan 2009 12:03:08 -0800 (PST) Received: from exprod7og109.obsmtp.com (exprod7og109.obsmtp.com [64.18.2.171]) by core3.amsl.com (Postfix) with ESMTP id A858F3A6960 for ; Wed, 28 Jan 2009 12:03:07 -0800 (PST) Received: from source ([66.129.224.36]) (using TLSv1) by exprod7ob109.postini.com ([64.18.6.12]) with SMTP ID DSNKSYC54h5Q14utzZFdd790fSNe13uo3awI@postini.com; Wed, 28 Jan 2009 12:02:50 PST Received: from p-emfe01-sac.jnpr.net (66.129.254.72) by P-EMHUB01-HQ.jnpr.net (172.24.192.35) with Microsoft SMTP Server id 8.1.336.0; Wed, 28 Jan 2009 11:59:56 -0800 Received: from p-emlb01-sac.jnpr.net ([66.129.254.46]) by p-emfe01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 11:59:56 -0800 Received: from emailsmtp55.jnpr.net ([172.24.18.132]) by p-emlb01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 11:59:55 -0800 Received: from magenta.juniper.net ([172.17.27.123]) by emailsmtp55.jnpr.net with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 11:59:55 -0800 Received: from sapphire.juniper.net (sapphire.juniper.net [172.17.28.108]) by magenta.juniper.net (8.11.3/8.11.3) with ESMTP id n0SJxtM19450; Wed, 28 Jan 2009 11:59:55 -0800 (PST) (envelope-from rahul@juniper.net) Date: Wed, 28 Jan 2009 11:59:55 -0800 From: Rahul Aggarwal To: "Drake, John E" In-Reply-To: <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> Message-ID: <20090128115725.O76169@sapphire.juniper.net> References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> MIME-Version: 1.0 X-OriginalArrivalTime: 28 Jan 2009 19:59:55.0241 (UTC) FILETIME=[FD507590:01C98182] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi John and Andy, On Wed, 28 Jan 2009, Drake, John E wrote: > Andy, > > What you write below is true *only* if there are separate client and > server stacks. If the client and server share the same stack, you are > dealing with plain vanilla MPLS, as I replied to Stewart. > I think what John calls the "separate client and server stacks" is the key to this conversation. > So, we only need to address the issue of carrying an MPLS payload if > there is a requirement for separate client and server stacks, and I > don't actually recall seeing such a requirement. > That is my understanding as well. rahul > Thanks, > > John > > >-----Original Message----- > >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] > >Sent: Wednesday, January 28, 2009 11:31 AM > >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) > >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Eric and Rahul, > > > >That's a perfect introduction to relating a discussion that > >Stewart, George, and I had on the phone today where we talked > >out a lot of these issues. > > > >If you want to use an MPLS-TP transport pipe to interconnect a > >pair of routers in order replace current inter-router links > >that currently use PoS or Ethernet for framing and protocol > >delineation, then you need to be able to transport everything > >that gets trunked between routers now - not just MPLS packets, > >but also unlabeled IP, CLNP for IS-IS, private protocols, and > >so on. So just a label stack with the S bit, or using label > >hierarchy is insufficient, since we'll never interconnect > >routers with ONLY MPLS, and operators require a clear > >demarcation between provider and client protocol headers for a > >number of operational and in some cases regulatory reasons. > > > >We talked about various alternatives for the demarcation. It's > >obvious that you could use an Ethernet or PPP PW, since both > >Ethernet and PPP are currently used for router > >interconnection, but we would like to avoid the baggage and > >overhead that goes along with them. So our thinking is to > >write a new PWE3 draft for an efficient generic PW that > >includes a protocol ID (from PPP) in the control word. Note > >that defining a generic PW is already in the PWE3 charter. > >That will give us a nice efficient demarcation point between > >the provider and client, and it uses an already existing > >protocol registry (PPP protocol IDs). > > > >Cheers, > >Andy > > > >-----Original Message----- > >From: mpls-interop-bounces@ietf.org > >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray > >Sent: Wednesday, January 28, 2009 1:48 PM > >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) > >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Rahul, > > > > For one thing, as is implied in Stewart's response, we > >don't have a mechanism for indicating that MPLS is being > >transported over MPLS-TP (like we do for MPLS over PPP, ATM, > >FR and Ethernet). If we need to also transport "other stuff" > >over the same MPLS-TP LSP, then we need to have a way to demux > >the MPLS tarffic from "other stuff." Otherwise, we would need > >to have separate MPLS-TP LSPs to transport separate traffic types... > > > >-- > >Eric > > > >-----Original Message----- > >From: mpls-interop-bounces@ietf.org > >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal > >Sent: Wednesday, January 28, 2009 12:05 PM > >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) > >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > > > >Hi Nurit, > > > >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > > > >> Better demarcation between the MPLS and the MPLS-TP layers.... > >> > > > >What precisely is meant by "better demarcation"? > > > >rahul > > > >> -----Original Message----- > >> From: mpls-interop-bounces@ietf.org > >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext > >Rahul Aggarwal > >> Sent: Wednesday, January 28, 2009 04:09 > >> To: mpls-interop@ietf.org > >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) > >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >> > >> > >> Hi All, > >> > >> Why is it not possible to use LSP hierarchy for carrying MPLS over > >> MPLS-TP? The client MPLS LSP would be carried in a server > >MPLS-TP LSP > >> using LSP hierarchy. Why can't this be the default behavior? > >> > >> rahul > >> > >> > >> _______________________________________________ > >> Mpls-interop mailing list > >> Mpls-interop@ietf.org > >> https://www.ietf.org/mailman/listinfo/mpls-interop > >> > >> > >_______________________________________________ > >Mpls-interop mailing list > >Mpls-interop@ietf.org > >https://www.ietf.org/mailman/listinfo/mpls-interop > >_______________________________________________ > >Mpls-interop mailing list > >Mpls-interop@ietf.org > >https://www.ietf.org/mailman/listinfo/mpls-interop > >_______________________________________________ > >Mpls-interop mailing list > >Mpls-interop@ietf.org > >https://www.ietf.org/mailman/listinfo/mpls-interop > > > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 12:14:16 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9769F28C12C; Wed, 28 Jan 2009 12:14:14 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id F1EAB28C12C for ; Wed, 28 Jan 2009 12:14:11 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Zgp44a3-NyuJ for ; Wed, 28 Jan 2009 12:14:10 -0800 (PST) Received: from exprod7og106.obsmtp.com (exprod7og106.obsmtp.com [64.18.2.165]) by core3.amsl.com (Postfix) with ESMTP id 01AB628C158 for ; Wed, 28 Jan 2009 12:14:09 -0800 (PST) Received: from source ([66.129.224.36]) (using TLSv1) by exprod7ob106.postini.com ([64.18.6.12]) with SMTP ID DSNKSYC8YsM6J7svRn7a3jY9rArmAMm2xfjB@postini.com; Wed, 28 Jan 2009 12:13:52 PST Received: from p-emfe01-sac.jnpr.net (66.129.254.72) by P-EMHUB01-HQ.jnpr.net (172.24.192.35) with Microsoft SMTP Server id 8.1.336.0; Wed, 28 Jan 2009 12:09:39 -0800 Received: from p-emlb01-sac.jnpr.net ([66.129.254.46]) by p-emfe01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 12:09:39 -0800 Received: from emailsmtp56.jnpr.net ([172.24.60.77]) by p-emlb01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 12:09:38 -0800 Received: from magenta.juniper.net ([172.17.27.123]) by emailsmtp56.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 12:09:37 -0800 Received: from sapphire.juniper.net (sapphire.juniper.net [172.17.28.108]) by magenta.juniper.net (8.11.3/8.11.3) with ESMTP id n0SK9cM24516; Wed, 28 Jan 2009 12:09:38 -0800 (PST) (envelope-from rahul@juniper.net) Date: Wed, 28 Jan 2009 12:09:38 -0800 From: Rahul Aggarwal To: "Malis, Andrew G. (Andy)" In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D9737BC9F8@FHDP1LUMXCV24.us.one.verizon.com> Message-ID: <20090128120121.G76169@sapphire.juniper.net> References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> <01F652C8CDBE7D4EB7ED860698C6D9737BC9F8@FHDP1LUMXCV24.us.one.verizon.com> MIME-Version: 1.0 X-OriginalArrivalTime: 28 Jan 2009 20:09:37.0982 (UTC) FILETIME=[58A7ADE0:01C98184] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi Andy, On Wed, 28 Jan 2009, Malis, Andrew G. (Andy) wrote: > John, > > Looks like I have another requirement to make sure is in the > requirements draft. :-) > > More seriously, at least speaking from a Verizon point of view, we do > need a clear separation between client and provider stacks. That may not > be true for all providers, but it is in our case. > What exactly is meant by "clear separation"? What constitutes this "clear separation"? When MPLS is carried over MPLS-TP why does the PW approach that you describe below provide "a clear separation" between client and provider stacks while MPLS LSP hierarchy does not? Note that I am not arguing against using PWs for carrying PPP or ethernet etc over MPLS-TP. All I am saying is that we should use MPLS LSP hierarchy for carrying MPLS over MPLS-TP; PWs for carrying Layer 2 traffic over MPLS-TP; and carry IP over MPLS-TP either directly or using an IP PW. In other words use existing technology. If folks want optimizations to this technology, that has to be optional. rahul > Cheers, > Andy > > -----Original Message----- > From: Drake, John E [mailto:John.E.Drake2@boeing.com] > Sent: Wednesday, January 28, 2009 2:41 PM > To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, Nurit > (NSN - IL/Hod HaSharon) > Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > Andy, > > What you write below is true *only* if there are separate client and > server stacks. If the client and server share the same stack, you are > dealing with plain vanilla MPLS, as I replied to Stewart. > > So, we only need to address the issue of carrying an MPLS payload if > there is a requirement for separate client and server stacks, and I > don't actually recall seeing such a requirement. > > Thanks, > > John > > >-----Original Message----- > >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] > >Sent: Wednesday, January 28, 2009 11:31 AM > >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) > >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Eric and Rahul, > > > >That's a perfect introduction to relating a discussion that > >Stewart, George, and I had on the phone today where we talked > >out a lot of these issues. > > > >If you want to use an MPLS-TP transport pipe to interconnect a > >pair of routers in order replace current inter-router links > >that currently use PoS or Ethernet for framing and protocol > >delineation, then you need to be able to transport everything > >that gets trunked between routers now - not just MPLS packets, > >but also unlabeled IP, CLNP for IS-IS, private protocols, and > >so on. So just a label stack with the S bit, or using label > >hierarchy is insufficient, since we'll never interconnect > >routers with ONLY MPLS, and operators require a clear > >demarcation between provider and client protocol headers for a > >number of operational and in some cases regulatory reasons. > > > >We talked about various alternatives for the demarcation. It's > >obvious that you could use an Ethernet or PPP PW, since both > >Ethernet and PPP are currently used for router > >interconnection, but we would like to avoid the baggage and > >overhead that goes along with them. So our thinking is to > >write a new PWE3 draft for an efficient generic PW that > >includes a protocol ID (from PPP) in the control word. Note > >that defining a generic PW is already in the PWE3 charter. > >That will give us a nice efficient demarcation point between > >the provider and client, and it uses an already existing > >protocol registry (PPP protocol IDs). > > > >Cheers, > >Andy > > > >-----Original Message----- > >From: mpls-interop-bounces@ietf.org > >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray > >Sent: Wednesday, January 28, 2009 1:48 PM > >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) > >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Rahul, > > > > For one thing, as is implied in Stewart's response, we > >don't have a mechanism for indicating that MPLS is being > >transported over MPLS-TP (like we do for MPLS over PPP, ATM, > >FR and Ethernet). If we need to also transport "other stuff" > >over the same MPLS-TP LSP, then we need to have a way to demux > >the MPLS tarffic from "other stuff." Otherwise, we would need > >to have separate MPLS-TP LSPs to transport separate traffic types... > > > >-- > >Eric > > > >-----Original Message----- > >From: mpls-interop-bounces@ietf.org > >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal > >Sent: Wednesday, January 28, 2009 12:05 PM > >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) > >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > > > >Hi Nurit, > > > >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > > > >> Better demarcation between the MPLS and the MPLS-TP layers.... > >> > > > >What precisely is meant by "better demarcation"? > > > >rahul > > > >> -----Original Message----- > >> From: mpls-interop-bounces@ietf.org > >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext > >Rahul Aggarwal > >> Sent: Wednesday, January 28, 2009 04:09 > >> To: mpls-interop@ietf.org > >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) > >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >> > >> > >> Hi All, > >> > >> Why is it not possible to use LSP hierarchy for carrying MPLS over > >> MPLS-TP? The client MPLS LSP would be carried in a server > >MPLS-TP LSP > >> using LSP hierarchy. Why can't this be the default behavior? > >> > >> rahul > >> > >> > >> _______________________________________________ > >> Mpls-interop mailing list > >> Mpls-interop@ietf.org > >> https://www.ietf.org/mailman/listinfo/mpls-interop > >> > >> > >_______________________________________________ > >Mpls-interop mailing list > >Mpls-interop@ietf.org > >https://www.ietf.org/mailman/listinfo/mpls-interop > >_______________________________________________ > >Mpls-interop mailing list > >Mpls-interop@ietf.org > >https://www.ietf.org/mailman/listinfo/mpls-interop > >_______________________________________________ > >Mpls-interop mailing list > >Mpls-interop@ietf.org > >https://www.ietf.org/mailman/listinfo/mpls-interop > > > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 12:21:00 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0988C28C141; Wed, 28 Jan 2009 12:21:00 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A694B28C152 for ; Wed, 28 Jan 2009 12:20:58 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.583 X-Spam-Level: X-Spam-Status: No, score=-6.583 tagged_above=-999 required=5 tests=[AWL=0.016, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ayVrAc4WLk6I for ; Wed, 28 Jan 2009 12:20:55 -0800 (PST) Received: from imr1.ericy.com (imr1.ericy.com [198.24.6.9]) by core3.amsl.com (Postfix) with ESMTP id 97B2828C141 for ; Wed, 28 Jan 2009 12:20:55 -0800 (PST) Received: from eusrcmw751.eamcs.ericsson.se (eusrcmw751.exu.ericsson.se [138.85.77.51]) by imr1.ericy.com (8.13.1/8.13.1) with ESMTP id n0SKQINd025790; Wed, 28 Jan 2009 14:26:18 -0600 Received: from eusrcmw721.eamcs.ericsson.se ([138.85.77.21]) by eusrcmw751.eamcs.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 14:20:36 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 14:20:35 -0600 Message-ID: <941D5DCD8C42014FAF70FB7424686DCF0487DDA7@eusrcmw721.eamcs.ericsson.se> In-Reply-To: <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBawLiB4mVfM3JQg+2MHhOAfQerAADXLugAAC6fjAAAQ5/YAAASOBg References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> From: "Eric Gray" To: "Drake, John E" , "Malis, Andrew G. (Andy)" , "Rahul Aggarwal" , "Sprecher, Nurit (NSN - IL/Hod HaSharon)" X-OriginalArrivalTime: 28 Jan 2009 20:20:36.0036 (UTC) FILETIME=[E0E2C040:01C98185] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org John, When you say "separate client and server stacks", you must mean at the same layer (i.e. - both visible to the end-point routers), as opposed to one transporting the other, right? If that is the case, then - if you allow that signaling is also transported over the same router-router link as a transported service, then (or course) there is a requirement for "separate client and server stacks"... -- Eric -----Original Message----- From: Drake, John E [mailto:John.E.Drake2@boeing.com] Sent: Wednesday, January 28, 2009 2:41 PM To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: RE: [Mpls-interop] MPLS over MPLS-TP Importance: High Andy, What you write below is true *only* if there are separate client and server stacks. If the client and server share the same stack, you are dealing with plain vanilla MPLS, as I replied to Stewart. So, we only need to address the issue of carrying an MPLS payload if there is a requirement for separate client and server stacks, and I don't actually recall seeing such a requirement. Thanks, John >-----Original Message----- >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >Sent: Wednesday, January 28, 2009 11:31 AM >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Eric and Rahul, > >That's a perfect introduction to relating a discussion that >Stewart, George, and I had on the phone today where we talked >out a lot of these issues. > >If you want to use an MPLS-TP transport pipe to interconnect a >pair of routers in order replace current inter-router links >that currently use PoS or Ethernet for framing and protocol >delineation, then you need to be able to transport everything >that gets trunked between routers now - not just MPLS packets, >but also unlabeled IP, CLNP for IS-IS, private protocols, and >so on. So just a label stack with the S bit, or using label >hierarchy is insufficient, since we'll never interconnect >routers with ONLY MPLS, and operators require a clear >demarcation between provider and client protocol headers for a >number of operational and in some cases regulatory reasons. > >We talked about various alternatives for the demarcation. It's >obvious that you could use an Ethernet or PPP PW, since both >Ethernet and PPP are currently used for router >interconnection, but we would like to avoid the baggage and >overhead that goes along with them. So our thinking is to >write a new PWE3 draft for an efficient generic PW that >includes a protocol ID (from PPP) in the control word. Note >that defining a generic PW is already in the PWE3 charter. >That will give us a nice efficient demarcation point between >the provider and client, and it uses an already existing >protocol registry (PPP protocol IDs). > >Cheers, >Andy > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >Sent: Wednesday, January 28, 2009 1:48 PM >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Rahul, > > For one thing, as is implied in Stewart's response, we >don't have a mechanism for indicating that MPLS is being >transported over MPLS-TP (like we do for MPLS over PPP, ATM, >FR and Ethernet). If we need to also transport "other stuff" >over the same MPLS-TP LSP, then we need to have a way to demux >the MPLS tarffic from "other stuff." Otherwise, we would need >to have separate MPLS-TP LSPs to transport separate traffic types... > >-- >Eric > >-----Original Message----- >From: mpls-interop-bounces@ietf.org >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >Sent: Wednesday, January 28, 2009 12:05 PM >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > >Hi Nurit, > >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > >> Better demarcation between the MPLS and the MPLS-TP layers.... >> > >What precisely is meant by "better demarcation"? > >rahul > >> -----Original Message----- >> From: mpls-interop-bounces@ietf.org >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >Rahul Aggarwal >> Sent: Wednesday, January 28, 2009 04:09 >> To: mpls-interop@ietf.org >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> >> Hi All, >> >> Why is it not possible to use LSP hierarchy for carrying MPLS over >> MPLS-TP? The client MPLS LSP would be carried in a server >MPLS-TP LSP >> using LSP hierarchy. Why can't this be the default behavior? >> >> rahul >> >> >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop >> >> >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop >_______________________________________________ >Mpls-interop mailing list >Mpls-interop@ietf.org >https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 12:27:46 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E725A3A6956; Wed, 28 Jan 2009 12:27:46 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 008E63A6A80 for ; Wed, 28 Jan 2009 12:27:46 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.569 X-Spam-Level: X-Spam-Status: No, score=-6.569 tagged_above=-999 required=5 tests=[AWL=0.030, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Geo1XrdxKeD1 for ; Wed, 28 Jan 2009 12:27:44 -0800 (PST) Received: from blv-smtpout-01.boeing.com (blv-smtpout-01.boeing.com [130.76.32.69]) by core3.amsl.com (Postfix) with ESMTP id CFC703A6956 for ; Wed, 28 Jan 2009 12:27:44 -0800 (PST) Received: from blv-av-01.boeing.com (blv-av-01.boeing.com [130.247.48.231]) by blv-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0SKRERr006080 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 28 Jan 2009 12:27:14 -0800 (PST) Received: from blv-av-01.boeing.com (localhost [127.0.0.1]) by blv-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0SKREu7017608; Wed, 28 Jan 2009 12:27:14 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by blv-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0SKRBTs017457; Wed, 28 Jan 2009 12:27:14 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 12:27:13 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 12:27:12 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016B7763@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <941D5DCD8C42014FAF70FB7424686DCF0487DDA7@eusrcmw721.eamcs.ericsson.se> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBawLiB4mVfM3JQg+2MHhOAfQerAADXLugAAC6fjAAAQ5/YAAASOBgAAFRs6A= References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> <941D5DCD8C42014FAF70FB7424686DCF0487DDA7@eusrcmw721.eamcs.ericsson.se> From: "Drake, John E" To: "Eric Gray" , "Malis, Andrew G. (Andy)" , "Rahul Aggarwal" , "Sprecher, Nurit (NSN - IL/Hod HaSharon)" X-OriginalArrivalTime: 28 Jan 2009 20:27:13.0539 (UTC) FILETIME=[CDD0E530:01C98186] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Eric, No, I meant a server MPLS stack, followed by an MPLS payload, as opposed to an IPv4, IPv6, or PW payload. Thanks, John >-----Original Message----- >From: Eric Gray [mailto:eric.gray@ericsson.com] >Sent: Wednesday, January 28, 2009 12:21 PM >To: Drake, John E; Malis, Andrew G. (Andy); Rahul Aggarwal; >Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > >John, > > When you say "separate client and server stacks", you >must mean at the same layer (i.e. - both visible to the >end-point routers), as opposed to one transporting the other, right? > > If that is the case, then - if you allow that signaling >is also transported over the same router-router link as a >transported service, then (or course) there is a requirement >for "separate client and server stacks"... > >-- >Eric > >-----Original Message----- >From: Drake, John E [mailto:John.E.Drake2@boeing.com] >Sent: Wednesday, January 28, 2009 2:41 PM >To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; >Sprecher, Nurit (NSN - IL/Hod HaSharon) >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP >Importance: High > >Andy, > >What you write below is true *only* if there are separate >client and server stacks. If the client and server share the >same stack, you are dealing with plain vanilla MPLS, as I >replied to Stewart. > >So, we only need to address the issue of carrying an MPLS >payload if there is a requirement for separate client and >server stacks, and I don't actually recall seeing such a requirement. > >Thanks, > >John > >>-----Original Message----- >>From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>Sent: Wednesday, January 28, 2009 11:31 AM >>To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >>Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >>Eric and Rahul, >> >>That's a perfect introduction to relating a discussion that Stewart, >>George, and I had on the phone today where we talked out a >lot of these >>issues. >> >>If you want to use an MPLS-TP transport pipe to interconnect >a pair of >>routers in order replace current inter-router links that >currently use >>PoS or Ethernet for framing and protocol delineation, then >you need to >>be able to transport everything that gets trunked between >routers now - >>not just MPLS packets, but also unlabeled IP, CLNP for IS-IS, private >>protocols, and so on. So just a label stack with the S bit, or using >>label hierarchy is insufficient, since we'll never >interconnect routers >>with ONLY MPLS, and operators require a clear demarcation between >>provider and client protocol headers for a number of >operational and in >>some cases regulatory reasons. >> >>We talked about various alternatives for the demarcation. >It's obvious >>that you could use an Ethernet or PPP PW, since both Ethernet and PPP >>are currently used for router interconnection, but we would like to >>avoid the baggage and overhead that goes along with them. So our >>thinking is to write a new PWE3 draft for an efficient >generic PW that >>includes a protocol ID (from PPP) in the control word. Note that >>defining a generic PW is already in the PWE3 charter. >>That will give us a nice efficient demarcation point between the >>provider and client, and it uses an already existing protocol >registry >>(PPP protocol IDs). >> >>Cheers, >>Andy >> >>-----Original Message----- >>From: mpls-interop-bounces@ietf.org >>[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >>Sent: Wednesday, January 28, 2009 1:48 PM >>To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >>Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >>Rahul, >> >> For one thing, as is implied in Stewart's response, we >don't have a >>mechanism for indicating that MPLS is being transported over MPLS-TP >>(like we do for MPLS over PPP, ATM, FR and Ethernet). If we need to >>also transport "other stuff" >>over the same MPLS-TP LSP, then we need to have a way to >demux the MPLS >>tarffic from "other stuff." Otherwise, we would need to have >separate >>MPLS-TP LSPs to transport separate traffic types... >> >>-- >>Eric >> >>-----Original Message----- >>From: mpls-interop-bounces@ietf.org >>[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >>Sent: Wednesday, January 28, 2009 12:05 PM >>To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >>Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> >>Hi Nurit, >> >>On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: >> >>> Better demarcation between the MPLS and the MPLS-TP layers.... >>> >> >>What precisely is meant by "better demarcation"? >> >>rahul >> >>> -----Original Message----- >>> From: mpls-interop-bounces@ietf.org >>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >>Rahul Aggarwal >>> Sent: Wednesday, January 28, 2009 04:09 >>> To: mpls-interop@ietf.org >>> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> >>> Hi All, >>> >>> Why is it not possible to use LSP hierarchy for carrying MPLS over >>> MPLS-TP? The client MPLS LSP would be carried in a server >>MPLS-TP LSP >>> using LSP hierarchy. Why can't this be the default behavior? >>> >>> rahul >>> >>> >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >>> >>_______________________________________________ >>Mpls-interop mailing list >>Mpls-interop@ietf.org >>https://www.ietf.org/mailman/listinfo/mpls-interop >>_______________________________________________ >>Mpls-interop mailing list >>Mpls-interop@ietf.org >>https://www.ietf.org/mailman/listinfo/mpls-interop >>_______________________________________________ >>Mpls-interop mailing list >>Mpls-interop@ietf.org >>https://www.ietf.org/mailman/listinfo/mpls-interop >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 12:38:11 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E030328C179; Wed, 28 Jan 2009 12:38:11 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B44C428C17E for ; Wed, 28 Jan 2009 12:38:10 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.569 X-Spam-Level: X-Spam-Status: No, score=-6.569 tagged_above=-999 required=5 tests=[AWL=0.030, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bopxJlpdkb6G for ; Wed, 28 Jan 2009 12:38:09 -0800 (PST) Received: from blv-smtpout-01.boeing.com (blv-smtpout-01.boeing.com [130.76.32.69]) by core3.amsl.com (Postfix) with ESMTP id 5F01E28C179 for ; Wed, 28 Jan 2009 12:38:09 -0800 (PST) Received: from stl-av-01.boeing.com (stl-av-01.boeing.com [192.76.190.6]) by blv-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0SKbla9012496 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 28 Jan 2009 12:37:48 -0800 (PST) Received: from stl-av-01.boeing.com (localhost [127.0.0.1]) by stl-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0SKblT4025260; Wed, 28 Jan 2009 14:37:47 -0600 (CST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by stl-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0SKbgkL025012; Wed, 28 Jan 2009 14:37:47 -0600 (CST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 12:37:46 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 12:37:45 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016B776C@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <20090128120121.G76169@sapphire.juniper.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBhPKKN3TbONrWSD+tYfd/shsAXgAAKzMQ References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se><01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com><51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com><01F652C8CDBE7D4EB7ED860698C6D9737BC9F8@FHDP1LUMXCV24.us.one.verizon.com> <20090128120121.G76169@sapphire.juniper.net> From: "Drake, John E" To: "Rahul Aggarwal" , "Malis, Andrew G. (Andy)" X-OriginalArrivalTime: 28 Jan 2009 20:37:46.0273 (UTC) FILETIME=[46F47110:01C98188] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Rahul and Andy, I think some very crisp requirements describing what is and is not permitted in the data plane are needed. For example, what exactly does two label stack separated by a generic PW header actually buy you versus either a shared label stack or two back to back stacks? Thanks, John >-----Original Message----- >From: Rahul Aggarwal [mailto:rahul@juniper.net] >Sent: Wednesday, January 28, 2009 12:10 PM >To: Malis, Andrew G. (Andy) >Cc: Drake, John E; Eric Gray; Sprecher, Nurit (NSN - IL/Hod >HaSharon); mpls-interop@ietf.org; Weingarten,Yaacov (NSN - >IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > >Hi Andy, > >On Wed, 28 Jan 2009, Malis, Andrew G. (Andy) wrote: > >> John, >> >> Looks like I have another requirement to make sure is in the >> requirements draft. :-) >> >> More seriously, at least speaking from a Verizon point of >view, we do >> need a clear separation between client and provider stacks. That may >> not be true for all providers, but it is in our case. >> > >What exactly is meant by "clear separation"? What constitutes >this "clear separation"? > >When MPLS is carried over MPLS-TP why does the PW approach >that you describe below provide "a clear separation" between >client and provider stacks while MPLS LSP hierarchy does not? > >Note that I am not arguing against using PWs for carrying PPP >or ethernet etc over MPLS-TP. All I am saying is that we >should use MPLS LSP hierarchy for carrying MPLS over MPLS-TP; >PWs for carrying Layer 2 traffic over MPLS-TP; and carry IP >over MPLS-TP either directly or using an IP PW. In other words >use existing technology. If folks want optimizations to this >technology, that has to be optional. > >rahul > >> Cheers, >> Andy >> >> -----Original Message----- >> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >> Sent: Wednesday, January 28, 2009 2:41 PM >> To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, >> Nurit (NSN - IL/Hod HaSharon) >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Andy, >> >> What you write below is true *only* if there are separate client and >> server stacks. If the client and server share the same >stack, you are >> dealing with plain vanilla MPLS, as I replied to Stewart. >> >> So, we only need to address the issue of carrying an MPLS payload if >> there is a requirement for separate client and server stacks, and I >> don't actually recall seeing such a requirement. >> >> Thanks, >> >> John >> >> >-----Original Message----- >> >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >> >Sent: Wednesday, January 28, 2009 11:31 AM >> >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod >> >HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> >Eric and Rahul, >> > >> >That's a perfect introduction to relating a discussion that >Stewart, >> >George, and I had on the phone today where we talked out a lot of >> >these issues. >> > >> >If you want to use an MPLS-TP transport pipe to interconnect a pair >> >of routers in order replace current inter-router links that >currently >> >use PoS or Ethernet for framing and protocol delineation, then you >> >need to be able to transport everything that gets trunked between >> >routers now - not just MPLS packets, but also unlabeled IP, >CLNP for >> >IS-IS, private protocols, and so on. So just a label stack >with the S >> >bit, or using label hierarchy is insufficient, since we'll never >> >interconnect routers with ONLY MPLS, and operators require a clear >> >demarcation between provider and client protocol headers >for a number >> >of operational and in some cases regulatory reasons. >> > >> >We talked about various alternatives for the demarcation. It's >> >obvious that you could use an Ethernet or PPP PW, since >both Ethernet >> >and PPP are currently used for router interconnection, but we would >> >like to avoid the baggage and overhead that goes along with >them. So >> >our thinking is to write a new PWE3 draft for an efficient >generic PW >> >that includes a protocol ID (from PPP) in the control word. >Note that >> >defining a generic PW is already in the PWE3 charter. >> >That will give us a nice efficient demarcation point between the >> >provider and client, and it uses an already existing protocol >> >registry (PPP protocol IDs). >> > >> >Cheers, >> >Andy >> > >> >-----Original Message----- >> >From: mpls-interop-bounces@ietf.org >> >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >> >Sent: Wednesday, January 28, 2009 1:48 PM >> >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> >Rahul, >> > >> > For one thing, as is implied in Stewart's response, we >don't have a >> >mechanism for indicating that MPLS is being transported >over MPLS-TP >> >(like we do for MPLS over PPP, ATM, FR and Ethernet). If >we need to >> >also transport "other stuff" >> >over the same MPLS-TP LSP, then we need to have a way to demux the >> >MPLS tarffic from "other stuff." Otherwise, we would need to have >> >separate MPLS-TP LSPs to transport separate traffic types... >> > >> >-- >> >Eric >> > >> >-----Original Message----- >> >From: mpls-interop-bounces@ietf.org >> >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >> >Sent: Wednesday, January 28, 2009 12:05 PM >> >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> > >> >Hi Nurit, >> > >> >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: >> > >> >> Better demarcation between the MPLS and the MPLS-TP layers.... >> >> >> > >> >What precisely is meant by "better demarcation"? >> > >> >rahul >> > >> >> -----Original Message----- >> >> From: mpls-interop-bounces@ietf.org >> >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >> >Rahul Aggarwal >> >> Sent: Wednesday, January 28, 2009 04:09 >> >> To: mpls-interop@ietf.org >> >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> >> >> >> >> Hi All, >> >> >> >> Why is it not possible to use LSP hierarchy for carrying >MPLS over >> >> MPLS-TP? The client MPLS LSP would be carried in a server >> >MPLS-TP LSP >> >> using LSP hierarchy. Why can't this be the default behavior? >> >> >> >> rahul >> >> >> >> >> >> _______________________________________________ >> >> Mpls-interop mailing list >> >> Mpls-interop@ietf.org >> >> https://www.ietf.org/mailman/listinfo/mpls-interop >> >> >> >> >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> > >> >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 12:48:41 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id CAFA43A6B67; Wed, 28 Jan 2009 12:48:41 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C34C33A6B67 for ; Wed, 28 Jan 2009 12:48:40 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.27 X-Spam-Level: X-Spam-Status: No, score=-6.27 tagged_above=-999 required=5 tests=[AWL=-0.271, BAYES_00=-2.599, J_CHICKENPOX_81=0.6, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CK4l4yfbJhJS for ; Wed, 28 Jan 2009 12:48:39 -0800 (PST) Received: from slb-smtpout-01.boeing.com (slb-smtpout-01.boeing.com [130.76.64.48]) by core3.amsl.com (Postfix) with ESMTP id E54C93A68D0 for ; Wed, 28 Jan 2009 12:48:39 -0800 (PST) Received: from blv-av-01.boeing.com (blv-av-01.boeing.com [130.247.48.231]) by slb-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0SKm9CH029491 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 28 Jan 2009 12:48:09 -0800 (PST) Received: from blv-av-01.boeing.com (localhost [127.0.0.1]) by blv-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0SKm8af018421; Wed, 28 Jan 2009 12:48:08 -0800 (PST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by blv-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0SKm3bf018145; Wed, 28 Jan 2009 12:48:08 -0800 (PST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 12:48:06 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 12:48:05 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016B7775@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: MPLS over MPLS-TP Thread-Index: AcmBawLiB4mVfM3JQg+2MHhOAfQerAADXLugAAC6fjAAA35mwA== References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> From: "Drake, John E" To: "Malis, Andrew G. (Andy)" , "Eric Gray" , "Rahul Aggarwal" , "Sprecher, Nurit (NSN - IL/Hod HaSharon)" X-OriginalArrivalTime: 28 Jan 2009 20:48:06.0445 (UTC) FILETIME=[B89B2DD0:01C98189] Cc: mpls-interop@ietf.org, neil.2.harrison@bt.com Subject: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org E-mail from Neil that he asked me to send to the group, as he is having trouble getting subscribed. > -----Original Message----- > From: Harrison,N,Neil,CXM R > Sent: 28 January 2009 10:15 > To: 'Drake, John E'; andrew.g.malis@verizon.com; > Niven-jenkins,B,Ben,DMF R > Cc: adrian@olddog.co.uk > Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > Thanks John, > > Well we simply have to deprecate ECMP....this is supposed to be a > *transport* network, so rule No. 1 is C/S transparency. > This means several important things, but fundamentally it means a > server layer network must never try and guess the meaning of any > client layer symbols, and for sure never change them. So it's not > even something we can debate....it must happen. > > Likewise the other 2 must-have behaviours are: > - OOB CP/MP > - respect rules of a connection (principally single source). > > So the above are the absolute min set of requirements on MPLS-TP....if > it does not meet them then the work will be worthless and should be > abandoned IMO. > > Now if you do this then there are 2 corollaries: > - there is no notion of a common CP instance (or any func > component instance) between C and S layers > - there is no reason to have PWs at all....but if they > are kept (political reasons) the thing that must not happen is the > creation of further co-ps layer network above MPLS-TP....that would be > just plain madness given the effort to get MPLS-TP right.....so any > notion of PWs must go back to being an adaptation function. > > The above are all 'must do', but there are other behaviours that are > important 'should do' too: > - the always-on defect detection/handling OAM should look > like normal traffic......it won't if they use label 13 as 'OAM > indicate' (right solution is that OAM indicate should be flag in the > normal traffic unit header), but I can live with that; > - we should be able to a C/S relationship with MPLS and > MPLS-TP over MPLS-TP.....and my strong opinion here is that this > should have a special DP label that the server layer inserts (in the > adaptation) to indicate a clear DP partitioning between the 2 MPLS > networks. Note - This is > *only* necessary if we want to keep sublayering using the S bit....I > think this is daft (how many other transport networks do you know that > use sublayering like this or even PWs?).....and I also urge great > caution in adopting TCM OAM stuff.....but it seems some vendors have > already made their minds up this stuff is going in here. > - there must be no notion of peer interworking any > network modes/technologies that are not top-of-stack. > > If we do that lot then MPLS-TP will be in fine shape. It cannot be > perfect, but it can claim to have removed most of the arch flaws that > currently exist in MPLS. > > To be prefect it would need: > - a more functionally rich header, including SA, DA, > muxing ID, PID with no need for label-swapping...won't happen > - OAM indicate in normal header.....could happen, but won't > - a section layer specification (ie ability to modulate > an EM wave to 'put bits of the wire')....could happen, but won't (not > a trivial exercise) > > regards, Neil > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 13:08:20 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 174F828C16C; Wed, 28 Jan 2009 13:08:20 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B45FE28C15A for ; Wed, 28 Jan 2009 13:08:18 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.487 X-Spam-Level: X-Spam-Status: No, score=-3.487 tagged_above=-999 required=5 tests=[AWL=0.112, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0fV8Hp-cqEXG for ; Wed, 28 Jan 2009 13:08:17 -0800 (PST) Received: from smtp4.smtp.bt.com (smtp4.smtp.bt.com [217.32.164.151]) by core3.amsl.com (Postfix) with ESMTP id 1590928C16C for ; Wed, 28 Jan 2009 13:08:16 -0800 (PST) Received: from E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.107]) by smtp4.smtp.bt.com with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 21:07:58 +0000 Received: from 10.215.40.109 ([10.215.40.109]) by E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.60]) via Exchange Front-End Server mail.bt.com ([193.113.197.32]) with Microsoft Exchange Server HTTP-DAV ; Wed, 28 Jan 2009 21:07:57 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Wed, 28 Jan 2009 21:07:55 +0000 From: Ben Niven-Jenkins To: "Malis, Andrew G. (Andy)" , "Drake, John E" , Eric Gray , Rahul Aggarwal , "Sprecher, Nurit (NSN - IL/Hod HaSharon)" Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBawLiB4mVfM3JQg+2MHhOAfQerAADXLugAAC6fjAAAQ5/YAAAoXzAAAKXVjU= In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D9737BC9F8@FHDP1LUMXCV24.us.one.verizon.com> Mime-version: 1.0 X-OriginalArrivalTime: 28 Jan 2009 21:07:58.0599 (UTC) FILETIME=[7F2F7170:01C9818C] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org MPLS-TP must support the separation that Andy mentions. It is essentially the fundamental service provided by a transport network - i.e. Ability to carry another party's (the client) network over the transport network infrastructure while maintaining complete independence of the client's DP, CP, MP from those of the transport network. This is what G.805 would refer to as a client/server relationship. I thought this was well understood. The current requirements draft does not explicitly state this as a requirement but it is somewhat hidden in the other requirements. Section 1.2. Transport Network overview states the following An important attribute of a transport network is that it is able to function regardless of which clients are using its connection service or over which transmission media it is running. The client, transport network and server layers are from a functional and operations point of view independent layer networks. Ben On 28/01/2009 19:56, "Malis, Andrew G. (Andy)" wrote: > John, > > Looks like I have another requirement to make sure is in the > requirements draft. :-) > > More seriously, at least speaking from a Verizon point of view, we do > need a clear separation between client and provider stacks. That may not > be true for all providers, but it is in our case. > > Cheers, > Andy > > -----Original Message----- > From: Drake, John E [mailto:John.E.Drake2@boeing.com] > Sent: Wednesday, January 28, 2009 2:41 PM > To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, Nurit > (NSN - IL/Hod HaSharon) > Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > Andy, > > What you write below is true *only* if there are separate client and > server stacks. If the client and server share the same stack, you are > dealing with plain vanilla MPLS, as I replied to Stewart. > > So, we only need to address the issue of carrying an MPLS payload if > there is a requirement for separate client and server stacks, and I > don't actually recall seeing such a requirement. > > Thanks, > > John > >> -----Original Message----- >> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >> Sent: Wednesday, January 28, 2009 11:31 AM >> To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> Eric and Rahul, >> >> That's a perfect introduction to relating a discussion that >> Stewart, George, and I had on the phone today where we talked >> out a lot of these issues. >> >> If you want to use an MPLS-TP transport pipe to interconnect a >> pair of routers in order replace current inter-router links >> that currently use PoS or Ethernet for framing and protocol >> delineation, then you need to be able to transport everything >> that gets trunked between routers now - not just MPLS packets, >> but also unlabeled IP, CLNP for IS-IS, private protocols, and >> so on. So just a label stack with the S bit, or using label >> hierarchy is insufficient, since we'll never interconnect >> routers with ONLY MPLS, and operators require a clear >> demarcation between provider and client protocol headers for a >> number of operational and in some cases regulatory reasons. >> >> We talked about various alternatives for the demarcation. It's >> obvious that you could use an Ethernet or PPP PW, since both >> Ethernet and PPP are currently used for router >> interconnection, but we would like to avoid the baggage and >> overhead that goes along with them. So our thinking is to >> write a new PWE3 draft for an efficient generic PW that >> includes a protocol ID (from PPP) in the control word. Note >> that defining a generic PW is already in the PWE3 charter. >> That will give us a nice efficient demarcation point between >> the provider and client, and it uses an already existing >> protocol registry (PPP protocol IDs). >> >> Cheers, >> Andy >> >> -----Original Message----- >> From: mpls-interop-bounces@ietf.org >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >> Sent: Wednesday, January 28, 2009 1:48 PM >> To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> Rahul, >> >> For one thing, as is implied in Stewart's response, we >> don't have a mechanism for indicating that MPLS is being >> transported over MPLS-TP (like we do for MPLS over PPP, ATM, >> FR and Ethernet). If we need to also transport "other stuff" >> over the same MPLS-TP LSP, then we need to have a way to demux >> the MPLS tarffic from "other stuff." Otherwise, we would need >> to have separate MPLS-TP LSPs to transport separate traffic types... >> >> -- >> Eric >> >> -----Original Message----- >> From: mpls-interop-bounces@ietf.org >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >> Sent: Wednesday, January 28, 2009 12:05 PM >> To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> >> Hi Nurit, >> >> On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: >> >>> Better demarcation between the MPLS and the MPLS-TP layers.... >>> >> >> What precisely is meant by "better demarcation"? >> >> rahul >> >>> -----Original Message----- >>> From: mpls-interop-bounces@ietf.org >>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >> Rahul Aggarwal >>> Sent: Wednesday, January 28, 2009 04:09 >>> To: mpls-interop@ietf.org >>> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> >>> Hi All, >>> >>> Why is it not possible to use LSP hierarchy for carrying MPLS over >>> MPLS-TP? The client MPLS LSP would be carried in a server >> MPLS-TP LSP >>> using LSP hierarchy. Why can't this be the default behavior? >>> >>> rahul >>> >>> >>> _______________________________________________ >>> Mpls-interop mailing list >>> Mpls-interop@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls-interop >>> >>> >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop >> _______________________________________________ >> Mpls-interop mailing list >> Mpls-interop@ietf.org >> https://www.ietf.org/mailman/listinfo/mpls-interop >> > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 13:36:45 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id F1E9428C16C; Wed, 28 Jan 2009 13:36:45 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E8B0C28C17E for ; Wed, 28 Jan 2009 13:36:43 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.716 X-Spam-Level: X-Spam-Status: No, score=-105.716 tagged_above=-999 required=5 tests=[AWL=0.283, BAYES_00=-2.599, J_CHICKENPOX_13=0.6, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7hU8RMgGkVof for ; Wed, 28 Jan 2009 13:36:42 -0800 (PST) Received: from mail121.messagelabs.com (mail121.messagelabs.com [216.82.242.3]) by core3.amsl.com (Postfix) with ESMTP id 3627128C16C for ; Wed, 28 Jan 2009 13:36:42 -0800 (PST) X-VirusChecked: Checked X-Env-Sender: dbrungard@att.com X-Msg-Ref: server-6.tower-121.messagelabs.com!1233178582!24617465!1 X-StarScan-Version: 6.0.0; banners=-,-,- X-Originating-IP: [144.160.20.54] Received: (qmail 28293 invoked from network); 28 Jan 2009 21:36:22 -0000 Received: from sbcsmtp7.sbc.com (HELO mlpi135.enaf.sfdc.sbc.com) (144.160.20.54) by server-6.tower-121.messagelabs.com with AES256-SHA encrypted SMTP; 28 Jan 2009 21:36:22 -0000 Received: from enaf.sfdc.sbc.com (localhost.localdomain [127.0.0.1]) by mlpi135.enaf.sfdc.sbc.com (8.14.3/8.14.3) with ESMTP id n0SLaLhs015343; Wed, 28 Jan 2009 16:36:21 -0500 Received: from gaalpa1msgusr7e.ugd.att.com (gaalpa1msgusr7e.ugd.att.com [135.53.26.19]) by mlpi135.enaf.sfdc.sbc.com (8.14.3/8.14.3) with ESMTP id n0SLaJXF015316; Wed, 28 Jan 2009 16:36:19 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 16:36:18 -0500 Message-ID: In-Reply-To: <51661468CBD1354294533DA79E85955A016B776C@XCH-SW-5V2.sw.nos.boeing.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBhPKKN3TbONrWSD+tYfd/shsAXgAAKzMQAAGzZyA= References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se><01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com><51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com><01F652C8CDBE7D4EB7ED860698C6D9737BC9F8@FHDP1LUMXCV24.us.one.verizon.com><20090128120121.G76169@sapphire.juniper.net> <51661468CBD1354294533DA79E85955A016B776C@XCH-SW-5V2.sw.nos.boeing.com> From: "BRUNGARD, DEBORAH A, ATTLABS" To: "Drake, John E" , "Rahul Aggarwal" , "Malis, Andrew G. (Andy)" Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Andy, What type of label will be used on the client MPLS link? Will it be assigned by the MPLS-TP border node? It would help also if you could define your expectations for the control plane aspects of the MPLS client/MPLS-TP server. In CCAMP, there's several RFCs on supporting MPLS (MPLS control plane) over MPLS (GMPLS control plane), and also there's the work on stitching and hierarchy which cover MPLS over MPLS and how to handle the e2e signaling. It's not so much the data plane aspects as the control capabilities which need to be understood. The same will be true if using a management plane. If one is using a vlan or SONET interface to segregate traffic and no other grooming is needed then a simple data plane mapping could be used. But if want grooming granularity and "TE capabilities" then some control mapping/interworking will be needed at the MPLS/MPLS-TP border node and also MPLS OAM support will be needed on the link between the MPLS node and MPLS/MPLS-TP border node. Also, in l3vpn, there's Kenji's document on draft-ietf-l3vpn-e2e-rsvp-te-reqts which discusses providing an MPLS service and includes security aspects which need to be considered: "In terms of control plane, in the models of C-RSVP paths and C-TE LSPs both, a PE receives IPv4 or IPv6 RSVP control packets from a CE. If the CE is an untrusted router for service providers, the PE MUST be able to limit IPv4 or IPv6 RSVP control packets. If the CE is a trusted router for service providers, the PE MAY be able to limit IPv4 or IPv6 control packets. In terms of data plane, in the model of C-TE LSPs, a PE receives labeled IPv4 or IPv6 data packets from a CE. If the CE is an untrusted router for service providers, the PE MUST be able to limit labeled IPv4 or IPv6 data packets. If the CE is a trusted router for service providers, the PE MAY be able to limit labeled IPv4 or IPv6 data packets. Specifically, the PE must drop MPLS-labeled packets if the MPLS label was not assigned over the PE-CE link on which the packet was received. The PE must also be able to police traffic to the traffic profile associated with the LSP on which traffic is received on the PE-CE link." Deborah -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Drake, John E Sent: Wednesday, January 28, 2009 3:38 PM To: Rahul Aggarwal; Malis, Andrew G. (Andy) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Rahul and Andy, I think some very crisp requirements describing what is and is not permitted in the data plane are needed. For example, what exactly does two label stack separated by a generic PW header actually buy you versus either a shared label stack or two back to back stacks? Thanks, John >-----Original Message----- >From: Rahul Aggarwal [mailto:rahul@juniper.net] >Sent: Wednesday, January 28, 2009 12:10 PM >To: Malis, Andrew G. (Andy) >Cc: Drake, John E; Eric Gray; Sprecher, Nurit (NSN - IL/Hod >HaSharon); mpls-interop@ietf.org; Weingarten,Yaacov (NSN - >IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > >Hi Andy, > >On Wed, 28 Jan 2009, Malis, Andrew G. (Andy) wrote: > >> John, >> >> Looks like I have another requirement to make sure is in the >> requirements draft. :-) >> >> More seriously, at least speaking from a Verizon point of >view, we do >> need a clear separation between client and provider stacks. That may >> not be true for all providers, but it is in our case. >> > >What exactly is meant by "clear separation"? What constitutes >this "clear separation"? > >When MPLS is carried over MPLS-TP why does the PW approach >that you describe below provide "a clear separation" between >client and provider stacks while MPLS LSP hierarchy does not? > >Note that I am not arguing against using PWs for carrying PPP >or ethernet etc over MPLS-TP. All I am saying is that we >should use MPLS LSP hierarchy for carrying MPLS over MPLS-TP; >PWs for carrying Layer 2 traffic over MPLS-TP; and carry IP >over MPLS-TP either directly or using an IP PW. In other words >use existing technology. If folks want optimizations to this >technology, that has to be optional. > >rahul > >> Cheers, >> Andy >> >> -----Original Message----- >> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >> Sent: Wednesday, January 28, 2009 2:41 PM >> To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, >> Nurit (NSN - IL/Hod HaSharon) >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Andy, >> >> What you write below is true *only* if there are separate client and >> server stacks. If the client and server share the same >stack, you are >> dealing with plain vanilla MPLS, as I replied to Stewart. >> >> So, we only need to address the issue of carrying an MPLS payload if >> there is a requirement for separate client and server stacks, and I >> don't actually recall seeing such a requirement. >> >> Thanks, >> >> John >> >> >-----Original Message----- >> >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >> >Sent: Wednesday, January 28, 2009 11:31 AM >> >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod >> >HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> >Eric and Rahul, >> > >> >That's a perfect introduction to relating a discussion that >Stewart, >> >George, and I had on the phone today where we talked out a lot of >> >these issues. >> > >> >If you want to use an MPLS-TP transport pipe to interconnect a pair >> >of routers in order replace current inter-router links that >currently >> >use PoS or Ethernet for framing and protocol delineation, then you >> >need to be able to transport everything that gets trunked between >> >routers now - not just MPLS packets, but also unlabeled IP, >CLNP for >> >IS-IS, private protocols, and so on. So just a label stack >with the S >> >bit, or using label hierarchy is insufficient, since we'll never >> >interconnect routers with ONLY MPLS, and operators require a clear >> >demarcation between provider and client protocol headers >for a number >> >of operational and in some cases regulatory reasons. >> > >> >We talked about various alternatives for the demarcation. It's >> >obvious that you could use an Ethernet or PPP PW, since >both Ethernet >> >and PPP are currently used for router interconnection, but we would >> >like to avoid the baggage and overhead that goes along with >them. So >> >our thinking is to write a new PWE3 draft for an efficient >generic PW >> >that includes a protocol ID (from PPP) in the control word. >Note that >> >defining a generic PW is already in the PWE3 charter. >> >That will give us a nice efficient demarcation point between the >> >provider and client, and it uses an already existing protocol >> >registry (PPP protocol IDs). >> > >> >Cheers, >> >Andy >> > >> >-----Original Message----- >> >From: mpls-interop-bounces@ietf.org >> >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >> >Sent: Wednesday, January 28, 2009 1:48 PM >> >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> >Rahul, >> > >> > For one thing, as is implied in Stewart's response, we >don't have a >> >mechanism for indicating that MPLS is being transported >over MPLS-TP >> >(like we do for MPLS over PPP, ATM, FR and Ethernet). If >we need to >> >also transport "other stuff" >> >over the same MPLS-TP LSP, then we need to have a way to demux the >> >MPLS tarffic from "other stuff." Otherwise, we would need to have >> >separate MPLS-TP LSPs to transport separate traffic types... >> > >> >-- >> >Eric >> > >> >-----Original Message----- >> >From: mpls-interop-bounces@ietf.org >> >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >> >Sent: Wednesday, January 28, 2009 12:05 PM >> >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> > >> >Hi Nurit, >> > >> >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: >> > >> >> Better demarcation between the MPLS and the MPLS-TP layers.... >> >> >> > >> >What precisely is meant by "better demarcation"? >> > >> >rahul >> > >> >> -----Original Message----- >> >> From: mpls-interop-bounces@ietf.org >> >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >> >Rahul Aggarwal >> >> Sent: Wednesday, January 28, 2009 04:09 >> >> To: mpls-interop@ietf.org >> >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> >> >> >> >> Hi All, >> >> >> >> Why is it not possible to use LSP hierarchy for carrying >MPLS over >> >> MPLS-TP? The client MPLS LSP would be carried in a server >> >MPLS-TP LSP >> >> using LSP hierarchy. Why can't this be the default behavior? >> >> >> >> rahul >> >> >> >> >> >> _______________________________________________ >> >> Mpls-interop mailing list >> >> Mpls-interop@ietf.org >> >> https://www.ietf.org/mailman/listinfo/mpls-interop >> >> >> >> >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> > >> >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 15:05:38 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 25ECB3A6B2A; Wed, 28 Jan 2009 15:05:38 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8A2623A6B2A for ; Wed, 28 Jan 2009 15:05:36 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.584 X-Spam-Level: X-Spam-Status: No, score=-6.584 tagged_above=-999 required=5 tests=[AWL=0.015, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id A7k11QfTgPHp for ; Wed, 28 Jan 2009 15:05:35 -0800 (PST) Received: from imr1.ericy.com (imr1.ericy.com [198.24.6.9]) by core3.amsl.com (Postfix) with ESMTP id 43A053A6A80 for ; Wed, 28 Jan 2009 15:05:35 -0800 (PST) Received: from eusrcmw750.eamcs.ericsson.se (eusrcmw750.exu.ericsson.se [138.85.77.50]) by imr1.ericy.com (8.13.1/8.13.1) with ESMTP id n0SNAvpg010557; Wed, 28 Jan 2009 17:10:57 -0600 Received: from eusrcmw721.eamcs.ericsson.se ([138.85.77.21]) by eusrcmw750.eamcs.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 17:05:15 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 17:05:13 -0600 Message-ID: <941D5DCD8C42014FAF70FB7424686DCF0487E0D7@eusrcmw721.eamcs.ericsson.se> In-Reply-To: <20090128120121.G76169@sapphire.juniper.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBhF2eNGHERsAIQmODdENUukIkcQAF/G7w References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> <01F652C8CDBE7D4EB7ED860698C6D9737BC9F8@FHDP1LUMXCV24.us.one.verizon.com> <20090128120121.G76169@sapphire.juniper.net> From: "Eric Gray" To: "Rahul Aggarwal" , "Malis, Andrew G. (Andy)" X-OriginalArrivalTime: 28 Jan 2009 23:05:15.0019 (UTC) FILETIME=[E137EDB0:01C9819C] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Rahul, The PW approach provides the demux point I mentioned. What Andy and Ben have been talking about has nothing to do with optimizations. Our customers are usually quite clear on what they mean in defining the differences between requirements and optimizations. -- Eric -----Original Message----- From: Rahul Aggarwal [mailto:rahul@juniper.net] Sent: Wednesday, January 28, 2009 3:10 PM To: Malis, Andrew G. (Andy) Cc: Drake, John E; Eric Gray; Sprecher, Nurit (NSN - IL/Hod HaSharon); mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: RE: [Mpls-interop] MPLS over MPLS-TP Hi Andy, On Wed, 28 Jan 2009, Malis, Andrew G. (Andy) wrote: > John, > > Looks like I have another requirement to make sure is in the > requirements draft. :-) > > More seriously, at least speaking from a Verizon point of view, we do > need a clear separation between client and provider stacks. That may not > be true for all providers, but it is in our case. > What exactly is meant by "clear separation"? What constitutes this "clear separation"? When MPLS is carried over MPLS-TP why does the PW approach that you describe below provide "a clear separation" between client and provider stacks while MPLS LSP hierarchy does not? Note that I am not arguing against using PWs for carrying PPP or ethernet etc over MPLS-TP. All I am saying is that we should use MPLS LSP hierarchy for carrying MPLS over MPLS-TP; PWs for carrying Layer 2 traffic over MPLS-TP; and carry IP over MPLS-TP either directly or using an IP PW. In other words use existing technology. If folks want optimizations to this technology, that has to be optional. rahul > Cheers, > Andy > > -----Original Message----- > From: Drake, John E [mailto:John.E.Drake2@boeing.com] > Sent: Wednesday, January 28, 2009 2:41 PM > To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, Nurit > (NSN - IL/Hod HaSharon) > Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > Andy, > > What you write below is true *only* if there are separate client and > server stacks. If the client and server share the same stack, you are > dealing with plain vanilla MPLS, as I replied to Stewart. > > So, we only need to address the issue of carrying an MPLS payload if > there is a requirement for separate client and server stacks, and I > don't actually recall seeing such a requirement. > > Thanks, > > John > > >-----Original Message----- > >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] > >Sent: Wednesday, January 28, 2009 11:31 AM > >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) > >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Eric and Rahul, > > > >That's a perfect introduction to relating a discussion that > >Stewart, George, and I had on the phone today where we talked > >out a lot of these issues. > > > >If you want to use an MPLS-TP transport pipe to interconnect a > >pair of routers in order replace current inter-router links > >that currently use PoS or Ethernet for framing and protocol > >delineation, then you need to be able to transport everything > >that gets trunked between routers now - not just MPLS packets, > >but also unlabeled IP, CLNP for IS-IS, private protocols, and > >so on. So just a label stack with the S bit, or using label > >hierarchy is insufficient, since we'll never interconnect > >routers with ONLY MPLS, and operators require a clear > >demarcation between provider and client protocol headers for a > >number of operational and in some cases regulatory reasons. > > > >We talked about various alternatives for the demarcation. It's > >obvious that you could use an Ethernet or PPP PW, since both > >Ethernet and PPP are currently used for router > >interconnection, but we would like to avoid the baggage and > >overhead that goes along with them. So our thinking is to > >write a new PWE3 draft for an efficient generic PW that > >includes a protocol ID (from PPP) in the control word. Note > >that defining a generic PW is already in the PWE3 charter. > >That will give us a nice efficient demarcation point between > >the provider and client, and it uses an already existing > >protocol registry (PPP protocol IDs). > > > >Cheers, > >Andy > > > >-----Original Message----- > >From: mpls-interop-bounces@ietf.org > >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray > >Sent: Wednesday, January 28, 2009 1:48 PM > >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) > >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Rahul, > > > > For one thing, as is implied in Stewart's response, we > >don't have a mechanism for indicating that MPLS is being > >transported over MPLS-TP (like we do for MPLS over PPP, ATM, > >FR and Ethernet). If we need to also transport "other stuff" > >over the same MPLS-TP LSP, then we need to have a way to demux > >the MPLS tarffic from "other stuff." Otherwise, we would need > >to have separate MPLS-TP LSPs to transport separate traffic types... > > > >-- > >Eric > > > >-----Original Message----- > >From: mpls-interop-bounces@ietf.org > >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal > >Sent: Wednesday, January 28, 2009 12:05 PM > >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) > >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > > > >Hi Nurit, > > > >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: > > > >> Better demarcation between the MPLS and the MPLS-TP layers.... > >> > > > >What precisely is meant by "better demarcation"? > > > >rahul > > > >> -----Original Message----- > >> From: mpls-interop-bounces@ietf.org > >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext > >Rahul Aggarwal > >> Sent: Wednesday, January 28, 2009 04:09 > >> To: mpls-interop@ietf.org > >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) > >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >> > >> > >> Hi All, > >> > >> Why is it not possible to use LSP hierarchy for carrying MPLS over > >> MPLS-TP? The client MPLS LSP would be carried in a server > >MPLS-TP LSP > >> using LSP hierarchy. Why can't this be the default behavior? > >> > >> rahul > >> > >> > >> _______________________________________________ > >> Mpls-interop mailing list > >> Mpls-interop@ietf.org > >> https://www.ietf.org/mailman/listinfo/mpls-interop > >> > >> > >_______________________________________________ > >Mpls-interop mailing list > >Mpls-interop@ietf.org > >https://www.ietf.org/mailman/listinfo/mpls-interop > >_______________________________________________ > >Mpls-interop mailing list > >Mpls-interop@ietf.org > >https://www.ietf.org/mailman/listinfo/mpls-interop > >_______________________________________________ > >Mpls-interop mailing list > >Mpls-interop@ietf.org > >https://www.ietf.org/mailman/listinfo/mpls-interop > > > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 15:18:10 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C2C7B3A6875; Wed, 28 Jan 2009 15:18:10 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1D7F13A68AF for ; Wed, 28 Jan 2009 15:18:10 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.565 X-Spam-Level: X-Spam-Status: No, score=-6.565 tagged_above=-999 required=5 tests=[AWL=0.034, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rxk2tjMYyqmQ for ; Wed, 28 Jan 2009 15:18:08 -0800 (PST) Received: from blv-smtpout-01.boeing.com (blv-smtpout-01.boeing.com [130.76.32.69]) by core3.amsl.com (Postfix) with ESMTP id DFAAC3A6875 for ; Wed, 28 Jan 2009 15:18:08 -0800 (PST) Received: from stl-av-01.boeing.com (stl-av-01.boeing.com [192.76.190.6]) by blv-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0SNHWTa011141 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 28 Jan 2009 15:17:32 -0800 (PST) Received: from stl-av-01.boeing.com (localhost [127.0.0.1]) by stl-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0SNHVLd008480; Wed, 28 Jan 2009 17:17:32 -0600 (CST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by stl-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0SNHCge008041; Wed, 28 Jan 2009 17:17:31 -0600 (CST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 15:17:28 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 15:17:27 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016B783B@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <941D5DCD8C42014FAF70FB7424686DCF0487E0D7@eusrcmw721.eamcs.ericsson.se> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBhF2eNGHERsAIQmODdENUukIkcQAF/G7wAABrzQA= References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> <01F652C8CDBE7D4EB7ED860698C6D9737BC9F8@FHDP1LUMXCV24.us.one.verizon.com> <20090128120121.G76169@sapphire.juniper.net> <941D5DCD8C42014FAF70FB7424686DCF0487E0D7@eusrcmw721.eamcs.ericsson.se> From: "Drake, John E" To: "Eric Gray" , "Rahul Aggarwal" , "Malis, Andrew G. (Andy)" X-OriginalArrivalTime: 28 Jan 2009 23:17:28.0467 (UTC) FILETIME=[96633630:01C9819E] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" , neil.2.harrison@bt.com Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Eric, Invoking PW to solve an MPLS issue seems to be intrinsically ill considered. I think Niel's solution, placing a reserved label at the bottom of the server stack seems to be a natural extension to RFC 3032. Thanks, John >-----Original Message----- >From: Eric Gray [mailto:eric.gray@ericsson.com] >Sent: Wednesday, January 28, 2009 3:05 PM >To: Rahul Aggarwal; Malis, Andrew G. (Andy) >Cc: Drake, John E; Sprecher, Nurit (NSN - IL/Hod HaSharon); >mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > >Rahul, > > The PW approach provides the demux point I mentioned. > > What Andy and Ben have been talking about has nothing >to do with optimizations. Our customers are usually quite >clear on what they mean in defining the differences between >requirements and optimizations. > >-- >Eric > >-----Original Message----- >From: Rahul Aggarwal [mailto:rahul@juniper.net] >Sent: Wednesday, January 28, 2009 3:10 PM >To: Malis, Andrew G. (Andy) >Cc: Drake, John E; Eric Gray; Sprecher, Nurit (NSN - IL/Hod >HaSharon); mpls-interop@ietf.org; Weingarten,Yaacov (NSN - >IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > >Hi Andy, > >On Wed, 28 Jan 2009, Malis, Andrew G. (Andy) wrote: > >> John, >> >> Looks like I have another requirement to make sure is in the >> requirements draft. :-) >> >> More seriously, at least speaking from a Verizon point of view, we do >> need a clear separation between client and provider stacks. That may >not >> be true for all providers, but it is in our case. >> > >What exactly is meant by "clear separation"? What constitutes this >"clear >separation"? > >When MPLS is carried over MPLS-TP why does the PW approach that you >describe below provide "a clear separation" between client and provider >stacks while MPLS LSP hierarchy does not? > >Note that I am not arguing against using PWs for carrying PPP or >ethernet >etc over MPLS-TP. All I am saying is that we should use MPLS LSP >hierarchy >for carrying MPLS over MPLS-TP; PWs for carrying Layer 2 traffic over >MPLS-TP; and carry IP over MPLS-TP either directly or using an >IP PW. In >other words use existing technology. If folks want >optimizations to this >technology, that has to be optional. > >rahul > >> Cheers, >> Andy >> >> -----Original Message----- >> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >> Sent: Wednesday, January 28, 2009 2:41 PM >> To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, >Nurit >> (NSN - IL/Hod HaSharon) >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Andy, >> >> What you write below is true *only* if there are separate client and >> server stacks. If the client and server share the same >stack, you are >> dealing with plain vanilla MPLS, as I replied to Stewart. >> >> So, we only need to address the issue of carrying an MPLS payload if >> there is a requirement for separate client and server stacks, and I >> don't actually recall seeing such a requirement. >> >> Thanks, >> >> John >> >> >-----Original Message----- >> >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >> >Sent: Wednesday, January 28, 2009 11:31 AM >> >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod >HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> >Eric and Rahul, >> > >> >That's a perfect introduction to relating a discussion that >> >Stewart, George, and I had on the phone today where we talked >> >out a lot of these issues. >> > >> >If you want to use an MPLS-TP transport pipe to interconnect a >> >pair of routers in order replace current inter-router links >> >that currently use PoS or Ethernet for framing and protocol >> >delineation, then you need to be able to transport everything >> >that gets trunked between routers now - not just MPLS packets, >> >but also unlabeled IP, CLNP for IS-IS, private protocols, and >> >so on. So just a label stack with the S bit, or using label >> >hierarchy is insufficient, since we'll never interconnect >> >routers with ONLY MPLS, and operators require a clear >> >demarcation between provider and client protocol headers for a >> >number of operational and in some cases regulatory reasons. >> > >> >We talked about various alternatives for the demarcation. It's >> >obvious that you could use an Ethernet or PPP PW, since both >> >Ethernet and PPP are currently used for router >> >interconnection, but we would like to avoid the baggage and >> >overhead that goes along with them. So our thinking is to >> >write a new PWE3 draft for an efficient generic PW that >> >includes a protocol ID (from PPP) in the control word. Note >> >that defining a generic PW is already in the PWE3 charter. >> >That will give us a nice efficient demarcation point between >> >the provider and client, and it uses an already existing >> >protocol registry (PPP protocol IDs). >> > >> >Cheers, >> >Andy >> > >> >-----Original Message----- >> >From: mpls-interop-bounces@ietf.org >> >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >> >Sent: Wednesday, January 28, 2009 1:48 PM >> >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> >Rahul, >> > >> > For one thing, as is implied in Stewart's response, we >> >don't have a mechanism for indicating that MPLS is being >> >transported over MPLS-TP (like we do for MPLS over PPP, ATM, >> >FR and Ethernet). If we need to also transport "other stuff" >> >over the same MPLS-TP LSP, then we need to have a way to demux >> >the MPLS tarffic from "other stuff." Otherwise, we would need >> >to have separate MPLS-TP LSPs to transport separate traffic types... >> > >> >-- >> >Eric >> > >> >-----Original Message----- >> >From: mpls-interop-bounces@ietf.org >> >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >> >Sent: Wednesday, January 28, 2009 12:05 PM >> >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> > >> >Hi Nurit, >> > >> >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: >> > >> >> Better demarcation between the MPLS and the MPLS-TP layers.... >> >> >> > >> >What precisely is meant by "better demarcation"? >> > >> >rahul >> > >> >> -----Original Message----- >> >> From: mpls-interop-bounces@ietf.org >> >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >> >Rahul Aggarwal >> >> Sent: Wednesday, January 28, 2009 04:09 >> >> To: mpls-interop@ietf.org >> >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> >> >> >> >> Hi All, >> >> >> >> Why is it not possible to use LSP hierarchy for carrying MPLS over >> >> MPLS-TP? The client MPLS LSP would be carried in a server >> >MPLS-TP LSP >> >> using LSP hierarchy. Why can't this be the default behavior? >> >> >> >> rahul >> >> >> >> >> >> _______________________________________________ >> >> Mpls-interop mailing list >> >> Mpls-interop@ietf.org >> >> https://www.ietf.org/mailman/listinfo/mpls-interop >> >> >> >> >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> > >> >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 15:21:25 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B56BB3A68CB; Wed, 28 Jan 2009 15:21:25 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6CC673A6B2A for ; Wed, 28 Jan 2009 15:21:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.585 X-Spam-Level: X-Spam-Status: No, score=-6.585 tagged_above=-999 required=5 tests=[AWL=0.014, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HmvDcfc87o2F for ; Wed, 28 Jan 2009 15:21:23 -0800 (PST) Received: from imr1.ericy.com (imr1.ericy.com [198.24.6.9]) by core3.amsl.com (Postfix) with ESMTP id 0988A3A68CB for ; Wed, 28 Jan 2009 15:21:22 -0800 (PST) Received: from eusrcmw750.eamcs.ericsson.se (eusrcmw750.exu.ericsson.se [138.85.77.50]) by imr1.ericy.com (8.13.1/8.13.1) with ESMTP id n0SNQhCH014507; Wed, 28 Jan 2009 17:26:43 -0600 Received: from eusrcmw721.eamcs.ericsson.se ([138.85.77.21]) by eusrcmw750.eamcs.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 17:21:01 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 17:20:58 -0600 Message-ID: <941D5DCD8C42014FAF70FB7424686DCF0487E0FD@eusrcmw721.eamcs.ericsson.se> In-Reply-To: <51661468CBD1354294533DA79E85955A016B783B@XCH-SW-5V2.sw.nos.boeing.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBhF2eNGHERsAIQmODdENUukIkcQAF/G7wAABrzQAAADbysA== References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se> <01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com> <51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com> <01F652C8CDBE7D4EB7ED860698C6D9737BC9F8@FHDP1LUMXCV24.us.one.verizon.com> <20090128120121.G76169@sapphire.juniper.net> <941D5DCD8C42014FAF70FB7424686DCF0487E0D7@eusrcmw721.eamcs.ericsson.se> <51661468CBD1354294533DA79E85955A016B783B@XCH-SW-5V2.sw.nos.boeing.com> From: "Eric Gray" To: "Drake, John E" , "Rahul Aggarwal" , "Malis, Andrew G. (Andy)" X-OriginalArrivalTime: 28 Jan 2009 23:21:01.0100 (UTC) FILETIME=[15206EC0:01C9819F] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" , neil.2.harrison@bt.com Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org John, That also would provide a demux point, and would be quite acceptable - at least from that perspective. My answer below was simply addressing what the solution Andy mentioned does. -- Eric -----Original Message----- From: Drake, John E [mailto:John.E.Drake2@boeing.com] Sent: Wednesday, January 28, 2009 6:17 PM To: Eric Gray; Rahul Aggarwal; Malis, Andrew G. (Andy) Cc: Sprecher, Nurit (NSN - IL/Hod HaSharon); mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon); neil.2.harrison@bt.com Subject: RE: [Mpls-interop] MPLS over MPLS-TP Importance: High Eric, Invoking PW to solve an MPLS issue seems to be intrinsically ill considered. I think Niel's solution, placing a reserved label at the bottom of the server stack seems to be a natural extension to RFC 3032. Thanks, John >-----Original Message----- >From: Eric Gray [mailto:eric.gray@ericsson.com] >Sent: Wednesday, January 28, 2009 3:05 PM >To: Rahul Aggarwal; Malis, Andrew G. (Andy) >Cc: Drake, John E; Sprecher, Nurit (NSN - IL/Hod HaSharon); >mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > >Rahul, > > The PW approach provides the demux point I mentioned. > > What Andy and Ben have been talking about has nothing >to do with optimizations. Our customers are usually quite >clear on what they mean in defining the differences between >requirements and optimizations. > >-- >Eric > >-----Original Message----- >From: Rahul Aggarwal [mailto:rahul@juniper.net] >Sent: Wednesday, January 28, 2009 3:10 PM >To: Malis, Andrew G. (Andy) >Cc: Drake, John E; Eric Gray; Sprecher, Nurit (NSN - IL/Hod >HaSharon); mpls-interop@ietf.org; Weingarten,Yaacov (NSN - >IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > >Hi Andy, > >On Wed, 28 Jan 2009, Malis, Andrew G. (Andy) wrote: > >> John, >> >> Looks like I have another requirement to make sure is in the >> requirements draft. :-) >> >> More seriously, at least speaking from a Verizon point of view, we do >> need a clear separation between client and provider stacks. That may >not >> be true for all providers, but it is in our case. >> > >What exactly is meant by "clear separation"? What constitutes this >"clear >separation"? > >When MPLS is carried over MPLS-TP why does the PW approach that you >describe below provide "a clear separation" between client and provider >stacks while MPLS LSP hierarchy does not? > >Note that I am not arguing against using PWs for carrying PPP or >ethernet >etc over MPLS-TP. All I am saying is that we should use MPLS LSP >hierarchy >for carrying MPLS over MPLS-TP; PWs for carrying Layer 2 traffic over >MPLS-TP; and carry IP over MPLS-TP either directly or using an >IP PW. In >other words use existing technology. If folks want >optimizations to this >technology, that has to be optional. > >rahul > >> Cheers, >> Andy >> >> -----Original Message----- >> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >> Sent: Wednesday, January 28, 2009 2:41 PM >> To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, >Nurit >> (NSN - IL/Hod HaSharon) >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Andy, >> >> What you write below is true *only* if there are separate client and >> server stacks. If the client and server share the same >stack, you are >> dealing with plain vanilla MPLS, as I replied to Stewart. >> >> So, we only need to address the issue of carrying an MPLS payload if >> there is a requirement for separate client and server stacks, and I >> don't actually recall seeing such a requirement. >> >> Thanks, >> >> John >> >> >-----Original Message----- >> >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >> >Sent: Wednesday, January 28, 2009 11:31 AM >> >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod >HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> >Eric and Rahul, >> > >> >That's a perfect introduction to relating a discussion that >> >Stewart, George, and I had on the phone today where we talked >> >out a lot of these issues. >> > >> >If you want to use an MPLS-TP transport pipe to interconnect a >> >pair of routers in order replace current inter-router links >> >that currently use PoS or Ethernet for framing and protocol >> >delineation, then you need to be able to transport everything >> >that gets trunked between routers now - not just MPLS packets, >> >but also unlabeled IP, CLNP for IS-IS, private protocols, and >> >so on. So just a label stack with the S bit, or using label >> >hierarchy is insufficient, since we'll never interconnect >> >routers with ONLY MPLS, and operators require a clear >> >demarcation between provider and client protocol headers for a >> >number of operational and in some cases regulatory reasons. >> > >> >We talked about various alternatives for the demarcation. It's >> >obvious that you could use an Ethernet or PPP PW, since both >> >Ethernet and PPP are currently used for router >> >interconnection, but we would like to avoid the baggage and >> >overhead that goes along with them. So our thinking is to >> >write a new PWE3 draft for an efficient generic PW that >> >includes a protocol ID (from PPP) in the control word. Note >> >that defining a generic PW is already in the PWE3 charter. >> >That will give us a nice efficient demarcation point between >> >the provider and client, and it uses an already existing >> >protocol registry (PPP protocol IDs). >> > >> >Cheers, >> >Andy >> > >> >-----Original Message----- >> >From: mpls-interop-bounces@ietf.org >> >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >> >Sent: Wednesday, January 28, 2009 1:48 PM >> >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> >Rahul, >> > >> > For one thing, as is implied in Stewart's response, we >> >don't have a mechanism for indicating that MPLS is being >> >transported over MPLS-TP (like we do for MPLS over PPP, ATM, >> >FR and Ethernet). If we need to also transport "other stuff" >> >over the same MPLS-TP LSP, then we need to have a way to demux >> >the MPLS tarffic from "other stuff." Otherwise, we would need >> >to have separate MPLS-TP LSPs to transport separate traffic types... >> > >> >-- >> >Eric >> > >> >-----Original Message----- >> >From: mpls-interop-bounces@ietf.org >> >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >> >Sent: Wednesday, January 28, 2009 12:05 PM >> >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> > >> >Hi Nurit, >> > >> >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: >> > >> >> Better demarcation between the MPLS and the MPLS-TP layers.... >> >> >> > >> >What precisely is meant by "better demarcation"? >> > >> >rahul >> > >> >> -----Original Message----- >> >> From: mpls-interop-bounces@ietf.org >> >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >> >Rahul Aggarwal >> >> Sent: Wednesday, January 28, 2009 04:09 >> >> To: mpls-interop@ietf.org >> >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> >> >> >> >> Hi All, >> >> >> >> Why is it not possible to use LSP hierarchy for carrying MPLS over >> >> MPLS-TP? The client MPLS LSP would be carried in a server >> >MPLS-TP LSP >> >> using LSP hierarchy. Why can't this be the default behavior? >> >> >> >> rahul >> >> >> >> >> >> _______________________________________________ >> >> Mpls-interop mailing list >> >> Mpls-interop@ietf.org >> >> https://www.ietf.org/mailman/listinfo/mpls-interop >> >> >> >> >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> > >> >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 16:01:33 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3965E3A6821; Wed, 28 Jan 2009 16:01:33 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 22E6428C17E for ; Wed, 28 Jan 2009 16:01:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.129 X-Spam-Level: X-Spam-Status: No, score=-1.129 tagged_above=-999 required=5 tests=[AWL=-0.197, BAYES_00=-2.599, J_CHICKENPOX_13=0.6, RCVD_IN_DNSWL_LOW=-1, RCVD_NUMERIC_HELO=2.067] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Q-jr8x2GWNZg for ; Wed, 28 Jan 2009 16:01:30 -0800 (PST) Received: from smtp2.smtp.bt.com (smtp2.smtp.bt.com [217.32.164.150]) by core3.amsl.com (Postfix) with ESMTP id 5EDB03A6821 for ; Wed, 28 Jan 2009 16:01:30 -0800 (PST) Received: from E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.107]) by smtp2.smtp.bt.com with Microsoft SMTPSVC(6.0.3790.1830); Thu, 29 Jan 2009 00:01:11 +0000 Received: from 217.32.164.172 ([217.32.164.172]) by E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.60]) via Exchange Front-End Server mail.bt.com ([193.113.197.26]) with Microsoft Exchange Server HTTP-DAV ; Thu, 29 Jan 2009 00:01:16 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Thu, 29 Jan 2009 00:01:09 +0000 From: Ben Niven-Jenkins To: "BRUNGARD, DEBORAH A, ATTLABS" , "Drake, John E" , Rahul Aggarwal , "Malis, Andrew G. (Andy)" Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBhPKKN3TbONrWSD+tYfd/shsAXgAAKzMQAAGzZyAABhDZrg== In-Reply-To: Mime-version: 1.0 X-OriginalArrivalTime: 29 Jan 2009 00:01:11.0539 (UTC) FILETIME=[B1DC3C30:01C981A4] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Colleagues, I am struggling to follow the thread which may be to do with my lack of cycles to read everything properly. I am struggling to understand who is proposing what and for each proposal: - what scenario(s) it is addressing - what scenario(s) it is not addressing - what, if any, interactions are required between the client & server layer networks. The requirement Andy/I have is for example for BT's network to carry a link between two VZ routers such that that link appears identical to VZ's routers as though VZ had run a cable across the floor directly between them. Ben On 28/01/2009 21:36, "BRUNGARD, DEBORAH A, ATTLABS" wrote: > Andy, > > What type of label will be used on the client MPLS link? Will it be > assigned by the MPLS-TP border node? It would help also if you could > define your expectations for the control plane aspects of the MPLS > client/MPLS-TP server. > > In CCAMP, there's several RFCs on supporting MPLS (MPLS control plane) > over MPLS (GMPLS control plane), and also there's the work on stitching > and hierarchy which cover MPLS over MPLS and how to handle the e2e > signaling. It's not so much the data plane aspects as the control > capabilities which need to be understood. The same will be true if using > a management plane. If one is using a vlan or SONET interface to > segregate traffic and no other grooming is needed then a simple data > plane mapping could be used. But if want grooming granularity and "TE > capabilities" then some control mapping/interworking will be needed at > the MPLS/MPLS-TP border node and also MPLS OAM support will be needed on > the link between the MPLS node and MPLS/MPLS-TP border node. > > Also, in l3vpn, there's Kenji's document on > draft-ietf-l3vpn-e2e-rsvp-te-reqts which discusses providing an MPLS > service and includes security aspects which need to be considered: > "In terms of control plane, in the models of C-RSVP paths and C-TE > LSPs both, a PE receives IPv4 or IPv6 RSVP control packets from a CE. > > If the CE is an untrusted router for service providers, the PE MUST > be able to limit IPv4 or IPv6 RSVP control packets. If the CE is a > trusted router for service providers, the PE MAY be able to limit > IPv4 or IPv6 control packets. > > In terms of data plane, in the model of C-TE LSPs, a PE receives > labeled IPv4 or IPv6 data packets from a CE. If the CE is an > untrusted router for service providers, the PE MUST be able to limit > labeled IPv4 or IPv6 data packets. If the CE is a trusted router for > service providers, the PE MAY be able to limit labeled IPv4 or IPv6 > data packets. Specifically, the PE must drop MPLS-labeled packets if > the MPLS label was not assigned over the PE-CE link on which the > packet was received. The PE must also be able to police traffic to > the traffic profile associated with the LSP on which traffic is > received on the PE-CE link." > > Deborah > > -----Original Message----- > From: mpls-interop-bounces@ietf.org > [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Drake, John E > Sent: Wednesday, January 28, 2009 3:38 PM > To: Rahul Aggarwal; Malis, Andrew G. (Andy) > Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) > Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > Rahul and Andy, > > I think some very crisp requirements describing what is and is not > permitted in the data plane are needed. For example, what exactly does > two label stack separated by a generic PW header actually buy you versus > either a shared label stack or two back to back stacks? > > Thanks, > > John > >> -----Original Message----- >> From: Rahul Aggarwal [mailto:rahul@juniper.net] >> Sent: Wednesday, January 28, 2009 12:10 PM >> To: Malis, Andrew G. (Andy) >> Cc: Drake, John E; Eric Gray; Sprecher, Nurit (NSN - IL/Hod >> HaSharon); mpls-interop@ietf.org; Weingarten,Yaacov (NSN - >> IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> >> Hi Andy, >> >> On Wed, 28 Jan 2009, Malis, Andrew G. (Andy) wrote: >> >>> John, >>> >>> Looks like I have another requirement to make sure is in the >>> requirements draft. :-) >>> >>> More seriously, at least speaking from a Verizon point of >> view, we do >>> need a clear separation between client and provider stacks. That may >>> not be true for all providers, but it is in our case. >>> >> >> What exactly is meant by "clear separation"? What constitutes >> this "clear separation"? >> >> When MPLS is carried over MPLS-TP why does the PW approach >> that you describe below provide "a clear separation" between >> client and provider stacks while MPLS LSP hierarchy does not? >> >> Note that I am not arguing against using PWs for carrying PPP >> or ethernet etc over MPLS-TP. All I am saying is that we >> should use MPLS LSP hierarchy for carrying MPLS over MPLS-TP; >> PWs for carrying Layer 2 traffic over MPLS-TP; and carry IP >> over MPLS-TP either directly or using an IP PW. In other words >> use existing technology. If folks want optimizations to this >> technology, that has to be optional. >> >> rahul >> >>> Cheers, >>> Andy >>> >>> -----Original Message----- >>> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >>> Sent: Wednesday, January 28, 2009 2:41 PM >>> To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, >>> Nurit (NSN - IL/Hod HaSharon) >>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >>> >>> Andy, >>> >>> What you write below is true *only* if there are separate client and >>> server stacks. If the client and server share the same >> stack, you are >>> dealing with plain vanilla MPLS, as I replied to Stewart. >>> >>> So, we only need to address the issue of carrying an MPLS payload if >>> there is a requirement for separate client and server stacks, and I >>> don't actually recall seeing such a requirement. >>> >>> Thanks, >>> >>> John >>> >>>> -----Original Message----- >>>> From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >>>> Sent: Wednesday, January 28, 2009 11:31 AM >>>> To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod >>>> HaSharon) >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Eric and Rahul, >>>> >>>> That's a perfect introduction to relating a discussion that >> Stewart, >>>> George, and I had on the phone today where we talked out a lot of >>>> these issues. >>>> >>>> If you want to use an MPLS-TP transport pipe to interconnect a pair >>>> of routers in order replace current inter-router links that >> currently >>>> use PoS or Ethernet for framing and protocol delineation, then you >>>> need to be able to transport everything that gets trunked between >>>> routers now - not just MPLS packets, but also unlabeled IP, >> CLNP for >>>> IS-IS, private protocols, and so on. So just a label stack >> with the S >>>> bit, or using label hierarchy is insufficient, since we'll never >>>> interconnect routers with ONLY MPLS, and operators require a clear >>>> demarcation between provider and client protocol headers >> for a number >>>> of operational and in some cases regulatory reasons. >>>> >>>> We talked about various alternatives for the demarcation. It's >>>> obvious that you could use an Ethernet or PPP PW, since >> both Ethernet >>>> and PPP are currently used for router interconnection, but we would >>>> like to avoid the baggage and overhead that goes along with >> them. So >>>> our thinking is to write a new PWE3 draft for an efficient >> generic PW >>>> that includes a protocol ID (from PPP) in the control word. >> Note that >>>> defining a generic PW is already in the PWE3 charter. >>>> That will give us a nice efficient demarcation point between the >>>> provider and client, and it uses an already existing protocol >>>> registry (PPP protocol IDs). >>>> >>>> Cheers, >>>> Andy >>>> >>>> -----Original Message----- >>>> From: mpls-interop-bounces@ietf.org >>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >>>> Sent: Wednesday, January 28, 2009 1:48 PM >>>> To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> Rahul, >>>> >>>> For one thing, as is implied in Stewart's response, we >> don't have a >>>> mechanism for indicating that MPLS is being transported >> over MPLS-TP >>>> (like we do for MPLS over PPP, ATM, FR and Ethernet). If >> we need to >>>> also transport "other stuff" >>>> over the same MPLS-TP LSP, then we need to have a way to demux the >>>> MPLS tarffic from "other stuff." Otherwise, we would need to have >>>> separate MPLS-TP LSPs to transport separate traffic types... >>>> >>>> -- >>>> Eric >>>> >>>> -----Original Message----- >>>> From: mpls-interop-bounces@ietf.org >>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >>>> Sent: Wednesday, January 28, 2009 12:05 PM >>>> To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >>>> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>> >>>> >>>> Hi Nurit, >>>> >>>> On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: >>>> >>>>> Better demarcation between the MPLS and the MPLS-TP layers.... >>>>> >>>> >>>> What precisely is meant by "better demarcation"? >>>> >>>> rahul >>>> >>>>> -----Original Message----- >>>>> From: mpls-interop-bounces@ietf.org >>>>> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >>>> Rahul Aggarwal >>>>> Sent: Wednesday, January 28, 2009 04:09 >>>>> To: mpls-interop@ietf.org >>>>> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >>>>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>>>> >>>>> >>>>> Hi All, >>>>> >>>>> Why is it not possible to use LSP hierarchy for carrying >> MPLS over >>>>> MPLS-TP? The client MPLS LSP would be carried in a server >>>> MPLS-TP LSP >>>>> using LSP hierarchy. Why can't this be the default behavior? >>>>> >>>>> rahul >>>>> >>>>> >>>>> _______________________________________________ >>>>> Mpls-interop mailing list >>>>> Mpls-interop@ietf.org >>>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>>> >>>>> >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>> _______________________________________________ >>>> Mpls-interop mailing list >>>> Mpls-interop@ietf.org >>>> https://www.ietf.org/mailman/listinfo/mpls-interop >>>> >>> >>> >> > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 16:11:24 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8A8133A67E5; Wed, 28 Jan 2009 16:11:24 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C61C83A6888 for ; Wed, 28 Jan 2009 16:11:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.407 X-Spam-Level: X-Spam-Status: No, score=-10.407 tagged_above=-999 required=5 tests=[AWL=0.192, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 157IfZpD2lfX for ; Wed, 28 Jan 2009 16:11:21 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 1F6553A67E5 for ; Wed, 28 Jan 2009 16:11:20 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,340,1231113600"; d="scan'208";a="32233851" Received: from ams-dkim-1.cisco.com ([144.254.224.138]) by ams-iport-1.cisco.com with ESMTP; 29 Jan 2009 00:11:02 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id n0T0B27R018964; Thu, 29 Jan 2009 01:11:02 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0T0B1Ux021603; Thu, 29 Jan 2009 00:11:01 GMT Received: from Stewarts-Computer.local (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0T0AuM25630; Thu, 29 Jan 2009 00:10:56 GMT Message-ID: <4980F410.2080508@cisco.com> Date: Thu, 29 Jan 2009 00:10:56 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: "Drake, John E" References: <20090127180128.T76169@sapphire.juniper.net> <49806CA9.2040601@cisco.com> <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=883; t=1233187862; x=1234051862; c=relaxed/simple; s=amsdkim1002; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=8Ay07lOaBoUo6iaHmN7emMm8hrTm/hSnvcHRbVWwGeY=; b=mJrYwPcb/Ln7m5toxqvm/U7GLEHj8hz/gYteEP5iKe1D/dnyM8zPalmdQx FsmB43DzXgp1sO0ouaK+2ZQM9174xmB5nChwpZk3Wqy4mnH33AKgCURPZiv6 RVxXLZMwb7; Authentication-Results: ams-dkim-1; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim1002 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Drake, John E wrote: > Stewart, > > If the client and server agree to share the same stack, there is no > reason that this would not work. As an existence proof, we have MPLS > and non-MPLS traffic sharing links today. > John Yes - today there is a PID in the datalink that is used to discriminate between the MPLS encapsulated data, and the IP control and OAM traffic. If it's ISIS we need to get the various hellos, LSPs etc over as well. Then we might have CDP etc etc. So to connect the two LSRs together over an MPLS-TP cloud you need some multiplexing technique. Today this multiplexing is achieved using a data link with a PID carried over a physical link or a virtual physical link (PW). How are you proposing to carry the additional packet types over an MPLS-TP network with a path that is only constructed to carry MPLS packets? Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 16:12:56 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id AB94C3A67BD; Wed, 28 Jan 2009 16:12:56 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7CC1A28C184 for ; Wed, 28 Jan 2009 16:12:55 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.285 X-Spam-Level: X-Spam-Status: No, score=-6.285 tagged_above=-999 required=5 tests=[AWL=-0.286, BAYES_00=-2.599, J_CHICKENPOX_13=0.6, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ce4NYIyi5sjz for ; Wed, 28 Jan 2009 16:12:54 -0800 (PST) Received: from imr2.ericy.com (imr2.ericy.com [198.24.6.3]) by core3.amsl.com (Postfix) with ESMTP id 702283A67BD for ; Wed, 28 Jan 2009 16:12:49 -0800 (PST) Received: from eusrcmw751.eamcs.ericsson.se (eusrcmw751.exu.ericsson.se [138.85.77.51]) by imr2.ericy.com (8.13.1/8.13.1) with ESMTP id n0T0CS8m018616; Wed, 28 Jan 2009 18:12:28 -0600 Received: from eusrcmw721.eamcs.ericsson.se ([138.85.77.21]) by eusrcmw751.eamcs.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 18:12:27 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 18:12:26 -0600 Message-ID: <941D5DCD8C42014FAF70FB7424686DCF0487E181@eusrcmw721.eamcs.ericsson.se> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBhPKKN3TbONrWSD+tYfd/shsAXgAAKzMQAAGzZyAABI6LYA== References: <20090127180128.T76169@sapphire.juniper.net><077E41CFFD002C4CAB7DFA4386A532643C1996@DEMUEXC014.nsn-intra.net><20090128090426.V76169@sapphire.juniper.net><941D5DCD8C42014FAF70FB7424686DCF0487DB96@eusrcmw721.eamcs.ericsson.se><01F652C8CDBE7D4EB7ED860698C6D9737BC9DB@FHDP1LUMXCV24.us.one.verizon.com><51661468CBD1354294533DA79E85955A016B7718@XCH-SW-5V2.sw.nos.boeing.com><01F652C8CDBE7D4EB7ED860698C6D9737BC9F8@FHDP1LUMXCV24.us.one.verizon.com><20090128120121.G76169@sapphire.juniper.net><51661468CBD1354294533DA79E85955A016B776C@XCH-SW-5V2.sw.nos.boeing.com> From: "Eric Gray" To: "BRUNGARD, DEBORAH A, ATTLABS" , "Drake, John E" , "Rahul Aggarwal" , "Malis, Andrew G. (Andy)" X-OriginalArrivalTime: 29 Jan 2009 00:12:27.0695 (UTC) FILETIME=[44E173F0:01C981A6] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Deborah, Not sure how any of what you ask relates to the discussion. In a simple case, a router might have an Ethernet over SONET connection to an MPLS-TP service providing a connection to an IP- adjacent router. The MPLS-TP service connection in this case would require insertion of some defined label at each router for traffic addressed to the other router, using the MPLS unicast over Ethernet code point - and (since the service is defined as MPLS-TP) no other encapsulation is allowed (or would result in properly delivered data). Otherwise, the MPLS-TP transport service looks like a wire. In this case, the only way these two routers have to talk to each other is to use the appropriate labels/encapsulation defined for the MPLS-TP service. All sorts of traffic would be getting sent back and forth across this MPLS-TP link, including - in the case under discussion - IP packets used to signal MPLS LSP setup for some finite but (effectively) arbitrary number of MPLS LSPs. From a purely layering perspective, there are a number of clean ways to do this. The two routers might have a configured PPP connection over the MPLS-TP link (as Andy has suggested some number of exchanges ago) and that would allow for the usual PPP demultiplexing (which would, among other things, allow the two routers to distinguish the IP signaling traffic from the MPLS labeled traffic). Other approaches might be used as well, such as (for instance) Ethernet over PW over the MPLS-TP link. The advantage of these approaches is that routers already talk to each other very well using a PPP or an Ethernet link for the purposes we're talking about. Defining interfaces and configuring connections between routers using these approaches is very likely to work for many different routers from many different router vendors. But these approaches are wasteful in terms of overhead required for the extra headers. We could cut out all of the extra stuff by simply having MPLS directly over the MPLS-TP service - as Rahul and John have (repeatedly) suggested - and that would even allow for a demux between IP and MPLS (provided by the BoS bit). But this is a link between routers, and routers may do other nifty things other than IP and MPLS traffic - so how do you demultiplex any thing other than IP and MPLS? In addition, because the MPLS-TP LSP between two routers provides a "transport service", [IP | MPLS] over the MPLS-TP transport service is the logical equivalent of [IP | MPLS] over . Who currently defines their interfaces that way? What are the management objects associated with management of such interfaces? The bottom line is that - even in a nice simple case, with none of the complications you mention below - the world is not the simple place that some people initially thought it was. Suggestions that reduce the amount of waste, while keeping the ability to demultiplex different traffic types, should be considered. Completely eliminating the waste may be much harder in the final analysis... -- Eric -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of BRUNGARD, DEBORAH A, ATTLABS Sent: Wednesday, January 28, 2009 4:36 PM To: Drake, John E; Rahul Aggarwal; Malis, Andrew G. (Andy) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Andy, What type of label will be used on the client MPLS link? Will it be assigned by the MPLS-TP border node? It would help also if you could define your expectations for the control plane aspects of the MPLS client/MPLS-TP server. In CCAMP, there's several RFCs on supporting MPLS (MPLS control plane) over MPLS (GMPLS control plane), and also there's the work on stitching and hierarchy which cover MPLS over MPLS and how to handle the e2e signaling. It's not so much the data plane aspects as the control capabilities which need to be understood. The same will be true if using a management plane. If one is using a vlan or SONET interface to segregate traffic and no other grooming is needed then a simple data plane mapping could be used. But if want grooming granularity and "TE capabilities" then some control mapping/interworking will be needed at the MPLS/MPLS-TP border node and also MPLS OAM support will be needed on the link between the MPLS node and MPLS/MPLS-TP border node. Also, in l3vpn, there's Kenji's document on draft-ietf-l3vpn-e2e-rsvp-te-reqts which discusses providing an MPLS service and includes security aspects which need to be considered: "In terms of control plane, in the models of C-RSVP paths and C-TE LSPs both, a PE receives IPv4 or IPv6 RSVP control packets from a CE. If the CE is an untrusted router for service providers, the PE MUST be able to limit IPv4 or IPv6 RSVP control packets. If the CE is a trusted router for service providers, the PE MAY be able to limit IPv4 or IPv6 control packets. In terms of data plane, in the model of C-TE LSPs, a PE receives labeled IPv4 or IPv6 data packets from a CE. If the CE is an untrusted router for service providers, the PE MUST be able to limit labeled IPv4 or IPv6 data packets. If the CE is a trusted router for service providers, the PE MAY be able to limit labeled IPv4 or IPv6 data packets. Specifically, the PE must drop MPLS-labeled packets if the MPLS label was not assigned over the PE-CE link on which the packet was received. The PE must also be able to police traffic to the traffic profile associated with the LSP on which traffic is received on the PE-CE link." Deborah -----Original Message----- From: mpls-interop-bounces@ietf.org [mailto:mpls-interop-bounces@ietf.org] On Behalf Of Drake, John E Sent: Wednesday, January 28, 2009 3:38 PM To: Rahul Aggarwal; Malis, Andrew G. (Andy) Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) Subject: Re: [Mpls-interop] MPLS over MPLS-TP Rahul and Andy, I think some very crisp requirements describing what is and is not permitted in the data plane are needed. For example, what exactly does two label stack separated by a generic PW header actually buy you versus either a shared label stack or two back to back stacks? Thanks, John >-----Original Message----- >From: Rahul Aggarwal [mailto:rahul@juniper.net] >Sent: Wednesday, January 28, 2009 12:10 PM >To: Malis, Andrew G. (Andy) >Cc: Drake, John E; Eric Gray; Sprecher, Nurit (NSN - IL/Hod >HaSharon); mpls-interop@ietf.org; Weingarten,Yaacov (NSN - >IL/Hod HaSharon) >Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > >Hi Andy, > >On Wed, 28 Jan 2009, Malis, Andrew G. (Andy) wrote: > >> John, >> >> Looks like I have another requirement to make sure is in the >> requirements draft. :-) >> >> More seriously, at least speaking from a Verizon point of >view, we do >> need a clear separation between client and provider stacks. That may >> not be true for all providers, but it is in our case. >> > >What exactly is meant by "clear separation"? What constitutes >this "clear separation"? > >When MPLS is carried over MPLS-TP why does the PW approach >that you describe below provide "a clear separation" between >client and provider stacks while MPLS LSP hierarchy does not? > >Note that I am not arguing against using PWs for carrying PPP >or ethernet etc over MPLS-TP. All I am saying is that we >should use MPLS LSP hierarchy for carrying MPLS over MPLS-TP; >PWs for carrying Layer 2 traffic over MPLS-TP; and carry IP >over MPLS-TP either directly or using an IP PW. In other words >use existing technology. If folks want optimizations to this >technology, that has to be optional. > >rahul > >> Cheers, >> Andy >> >> -----Original Message----- >> From: Drake, John E [mailto:John.E.Drake2@boeing.com] >> Sent: Wednesday, January 28, 2009 2:41 PM >> To: Malis, Andrew G. (Andy); Eric Gray; Rahul Aggarwal; Sprecher, >> Nurit (NSN - IL/Hod HaSharon) >> Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> Subject: RE: [Mpls-interop] MPLS over MPLS-TP >> >> Andy, >> >> What you write below is true *only* if there are separate client and >> server stacks. If the client and server share the same >stack, you are >> dealing with plain vanilla MPLS, as I replied to Stewart. >> >> So, we only need to address the issue of carrying an MPLS payload if >> there is a requirement for separate client and server stacks, and I >> don't actually recall seeing such a requirement. >> >> Thanks, >> >> John >> >> >-----Original Message----- >> >From: Malis, Andrew G. (Andy) [mailto:andrew.g.malis@verizon.com] >> >Sent: Wednesday, January 28, 2009 11:31 AM >> >To: Eric Gray; Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod >> >HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> >Eric and Rahul, >> > >> >That's a perfect introduction to relating a discussion that >Stewart, >> >George, and I had on the phone today where we talked out a lot of >> >these issues. >> > >> >If you want to use an MPLS-TP transport pipe to interconnect a pair >> >of routers in order replace current inter-router links that >currently >> >use PoS or Ethernet for framing and protocol delineation, then you >> >need to be able to transport everything that gets trunked between >> >routers now - not just MPLS packets, but also unlabeled IP, >CLNP for >> >IS-IS, private protocols, and so on. So just a label stack >with the S >> >bit, or using label hierarchy is insufficient, since we'll never >> >interconnect routers with ONLY MPLS, and operators require a clear >> >demarcation between provider and client protocol headers >for a number >> >of operational and in some cases regulatory reasons. >> > >> >We talked about various alternatives for the demarcation. It's >> >obvious that you could use an Ethernet or PPP PW, since >both Ethernet >> >and PPP are currently used for router interconnection, but we would >> >like to avoid the baggage and overhead that goes along with >them. So >> >our thinking is to write a new PWE3 draft for an efficient >generic PW >> >that includes a protocol ID (from PPP) in the control word. >Note that >> >defining a generic PW is already in the PWE3 charter. >> >That will give us a nice efficient demarcation point between the >> >provider and client, and it uses an already existing protocol >> >registry (PPP protocol IDs). >> > >> >Cheers, >> >Andy >> > >> >-----Original Message----- >> >From: mpls-interop-bounces@ietf.org >> >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Eric Gray >> >Sent: Wednesday, January 28, 2009 1:48 PM >> >To: Rahul Aggarwal; Sprecher, Nurit (NSN - IL/Hod HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> >Rahul, >> > >> > For one thing, as is implied in Stewart's response, we >don't have a >> >mechanism for indicating that MPLS is being transported >over MPLS-TP >> >(like we do for MPLS over PPP, ATM, FR and Ethernet). If >we need to >> >also transport "other stuff" >> >over the same MPLS-TP LSP, then we need to have a way to demux the >> >MPLS tarffic from "other stuff." Otherwise, we would need to have >> >separate MPLS-TP LSPs to transport separate traffic types... >> > >> >-- >> >Eric >> > >> >-----Original Message----- >> >From: mpls-interop-bounces@ietf.org >> >[mailto:mpls-interop-bounces@ietf.org] On Behalf Of Rahul Aggarwal >> >Sent: Wednesday, January 28, 2009 12:05 PM >> >To: Sprecher, Nurit (NSN - IL/Hod HaSharon) >> >Cc: mpls-interop@ietf.org; Weingarten,Yaacov (NSN - IL/Hod HaSharon) >> >Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> > >> > >> >Hi Nurit, >> > >> >On Wed, 28 Jan 2009, Sprecher, Nurit (NSN - IL/Hod HaSharon) wrote: >> > >> >> Better demarcation between the MPLS and the MPLS-TP layers.... >> >> >> > >> >What precisely is meant by "better demarcation"? >> > >> >rahul >> > >> >> -----Original Message----- >> >> From: mpls-interop-bounces@ietf.org >> >> [mailto:mpls-interop-bounces@ietf.org] On Behalf Of ext >> >Rahul Aggarwal >> >> Sent: Wednesday, January 28, 2009 04:09 >> >> To: mpls-interop@ietf.org >> >> Cc: Weingarten, Yaacov (NSN - IL/Hod HaSharon) >> >> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >> >> >> >> >> >> Hi All, >> >> >> >> Why is it not possible to use LSP hierarchy for carrying >MPLS over >> >> MPLS-TP? The client MPLS LSP would be carried in a server >> >MPLS-TP LSP >> >> using LSP hierarchy. Why can't this be the default behavior? >> >> >> >> rahul >> >> >> >> >> >> _______________________________________________ >> >> Mpls-interop mailing list >> >> Mpls-interop@ietf.org >> >> https://www.ietf.org/mailman/listinfo/mpls-interop >> >> >> >> >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> >_______________________________________________ >> >Mpls-interop mailing list >> >Mpls-interop@ietf.org >> >https://www.ietf.org/mailman/listinfo/mpls-interop >> > >> >> > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 16:15:00 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C2F9D3A67BD; Wed, 28 Jan 2009 16:15:00 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 673063A68DA for ; Wed, 28 Jan 2009 16:15:00 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.414 X-Spam-Level: X-Spam-Status: No, score=-10.414 tagged_above=-999 required=5 tests=[AWL=0.185, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 97oT6x4YLZW5 for ; Wed, 28 Jan 2009 16:14:59 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id 117083A67BD for ; Wed, 28 Jan 2009 16:14:58 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,340,1231113600"; d="scan'208";a="32233938" Received: from ams-dkim-2.cisco.com ([144.254.224.139]) by ams-iport-1.cisco.com with ESMTP; 29 Jan 2009 00:14:40 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id n0T0Ee7G032288; Thu, 29 Jan 2009 01:14:40 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0T0EdIL021937; Thu, 29 Jan 2009 00:14:39 GMT Received: from Stewarts-Computer.local (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0T0EcM25801; Thu, 29 Jan 2009 00:14:38 GMT Message-ID: <4980F4EE.2050608@cisco.com> Date: Thu, 29 Jan 2009 00:14:38 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: Ben Niven-Jenkins References: In-Reply-To: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=332; t=1233188080; x=1234052080; c=relaxed/simple; s=amsdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=pXltWRznD97brmvH7P6eiNZE0fax5uv8/7AkZ4uxw9Y=; b=N1ZKHc053BTK4atckaKuzayI6aCESNZKxKkAIvAdmM+A3gkkEejQ3Qmv3O hN1sMIe0ykFrudcdL+rlTLaUFvUZwVZkwm+h9gaNXZFbEK2IYjs+gGQzyFgK qYbeZQ1mHW; Authentication-Results: ams-dkim-2; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim2001 verified; ); Cc: "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" , mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org > > The requirement Andy/I have is for example for BT's network to carry a link > between two VZ routers such that that link appears identical to VZ's routers > as though VZ had run a cable across the floor directly between them. > > Ben > > In which case it's not just MPLS pkts that you have to exchange. Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 16:32:45 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5D7553A6988; Wed, 28 Jan 2009 16:32:45 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A990B3A6988 for ; Wed, 28 Jan 2009 16:32:44 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.422 X-Spam-Level: X-Spam-Status: No, score=-1.422 tagged_above=-999 required=5 tests=[AWL=0.110, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1, RCVD_NUMERIC_HELO=2.067] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bE2tAlwgFYLb for ; Wed, 28 Jan 2009 16:32:44 -0800 (PST) Received: from smtp3.smtp.bt.com (smtp3.smtp.bt.com [217.32.164.138]) by core3.amsl.com (Postfix) with ESMTP id B98DE3A686D for ; Wed, 28 Jan 2009 16:32:43 -0800 (PST) Received: from E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.107]) by smtp3.smtp.bt.com with Microsoft SMTPSVC(6.0.3790.1830); Thu, 29 Jan 2009 00:32:23 +0000 Received: from 217.32.164.172 ([217.32.164.172]) by E03MVB3-UKBR.domain1.systemhost.net ([193.113.197.60]) via Exchange Front-End Server mail.bt.com ([193.113.197.26]) with Microsoft Exchange Server HTTP-DAV ; Thu, 29 Jan 2009 00:32:27 +0000 User-Agent: Microsoft-Entourage/12.15.0.081119 Date: Thu, 29 Jan 2009 00:32:21 +0000 From: Ben Niven-Jenkins To: Message-ID: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBqQwlp8ElfxoxE02mw+ZrL1yfDA== In-Reply-To: <4980F4EE.2050608@cisco.com> Mime-version: 1.0 X-OriginalArrivalTime: 29 Jan 2009 00:32:23.0100 (UTC) FILETIME=[0D65C7C0:01C981A9] Cc: "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" , mpls-interop@ietf.org Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org On 29/01/2009 00:14, "Stewart Bryant" wrote: >> The requirement Andy/I have is for example for BT's network to carry a link >> between two VZ routers such that that link appears identical to VZ's routers >> as though VZ had run a cable across the floor directly between them. >> > In which case it's not just MPLS pkts that you have to exchange. Correct. Ben _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 17:03:54 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 53BFE3A67AF; Wed, 28 Jan 2009 17:03:54 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B0F8E3A687F for ; Wed, 28 Jan 2009 17:03:52 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.566 X-Spam-Level: X-Spam-Status: No, score=-6.566 tagged_above=-999 required=5 tests=[AWL=0.033, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PtEq8pip-On0 for ; Wed, 28 Jan 2009 17:03:51 -0800 (PST) Received: from blv-smtpout-01.boeing.com (blv-smtpout-01.boeing.com [130.76.32.69]) by core3.amsl.com (Postfix) with ESMTP id D9B243A67AF for ; Wed, 28 Jan 2009 17:03:51 -0800 (PST) Received: from stl-av-01.boeing.com (stl-av-01.boeing.com [192.76.190.6]) by blv-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0T13P2R015732 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 28 Jan 2009 17:03:25 -0800 (PST) Received: from stl-av-01.boeing.com (localhost [127.0.0.1]) by stl-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0T13OHU002305; Wed, 28 Jan 2009 19:03:24 -0600 (CST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by stl-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0T13F4b002203; Wed, 28 Jan 2009 19:03:24 -0600 (CST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 17:03:23 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 28 Jan 2009 17:02:32 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016B78C2@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <4980F410.2080508@cisco.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBphOgbPnGYNb5Q0CJjFL6xS/wKgABmkEQ References: <20090127180128.T76169@sapphire.juniper.net> <49806CA9.2040601@cisco.com> <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> <4980F410.2080508@cisco.com> From: "Drake, John E" To: X-OriginalArrivalTime: 29 Jan 2009 01:03:23.0420 (UTC) FILETIME=[623C15C0:01C981AD] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Stewart, This is an e-mail I sent Andy last month, and again on Monday: "Great. So, it is up to the client endpoints of the MPLS TP LSP to understand the payload contents and we could have as payloads, for example, MPLS packets with their own label stack, IP packets, or ethernet PW packets which in turn contain, for example, MPLS packets or IP packets." So, I was optimizing for the MPLS and IP traffic, and carrying the other stuff in a PW. Thanks, John >-----Original Message----- >From: Stewart Bryant [mailto:stbryant@cisco.com] >Sent: Wednesday, January 28, 2009 4:11 PM >To: Drake, John E >Cc: Rahul Aggarwal; mpls-interop@ietf.org; Malis, Andrew G. >(Andy); Weingarten, Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Drake, John E wrote: >> Stewart, >> >> If the client and server agree to share the same stack, there is no >> reason that this would not work. As an existence proof, we >have MPLS >> and non-MPLS traffic sharing links today. >> >John > >Yes - today there is a PID in the datalink that is used to >discriminate between the MPLS encapsulated data, and the IP >control and OAM traffic. If it's ISIS we need to get the >various hellos, LSPs etc over as well. Then we might have CDP etc etc. > >So to connect the two LSRs together over an MPLS-TP cloud you >need some multiplexing technique. > >Today this multiplexing is achieved using a data link with a >PID carried over a physical link or a virtual physical link (PW). > >How are you proposing to carry the additional packet types >over an MPLS-TP network with a path that is only constructed >to carry MPLS packets? > >Stewart > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 17:35:03 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 675F23A67A8; Wed, 28 Jan 2009 17:35:03 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BAB043A67AF for ; Wed, 28 Jan 2009 17:35:02 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[AWL=0.000, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7WwAVEf1acNF for ; Wed, 28 Jan 2009 17:35:02 -0800 (PST) Received: from exprod7og112.obsmtp.com (exprod7og112.obsmtp.com [64.18.2.177]) by core3.amsl.com (Postfix) with ESMTP id D85413A67A8 for ; Wed, 28 Jan 2009 17:35:01 -0800 (PST) Received: from source ([66.129.224.36]) (using TLSv1) by exprod7ob112.postini.com ([64.18.6.12]) with SMTP ID DSNKSYEHokQGjPhacqP/ggOS28aq/3ScN8P+@postini.com; Wed, 28 Jan 2009 17:34:44 PST Received: from p-emfe01-sac.jnpr.net (66.129.254.72) by P-EMHUB01-HQ.jnpr.net (172.24.192.35) with Microsoft SMTP Server id 8.1.336.0; Wed, 28 Jan 2009 17:31:17 -0800 Received: from p-emlb01-sac.jnpr.net ([66.129.254.46]) by p-emfe01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 17:31:16 -0800 Received: from emailsmtp55.jnpr.net ([172.24.18.132]) by p-emlb01-sac.jnpr.net with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 17:31:16 -0800 Received: from magenta.juniper.net ([172.17.27.123]) by emailsmtp55.jnpr.net with Microsoft SMTPSVC(6.0.3790.1830); Wed, 28 Jan 2009 17:31:15 -0800 Received: from sapphire.juniper.net (sapphire.juniper.net [172.17.28.108]) by magenta.juniper.net (8.11.3/8.11.3) with ESMTP id n0T1VFM74608; Wed, 28 Jan 2009 17:31:15 -0800 (PST) (envelope-from rahul@juniper.net) Date: Wed, 28 Jan 2009 17:31:15 -0800 From: Rahul Aggarwal To: "Drake, John E" In-Reply-To: <51661468CBD1354294533DA79E85955A016B78C2@XCH-SW-5V2.sw.nos.boeing.com> Message-ID: <20090128172608.A76169@sapphire.juniper.net> References: <20090127180128.T76169@sapphire.juniper.net> <49806CA9.2040601@cisco.com> <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> <4980F410.2080508@cisco.com> <51661468CBD1354294533DA79E85955A016B78C2@XCH-SW-5V2.sw.nos.boeing.com> MIME-Version: 1.0 X-OriginalArrivalTime: 29 Jan 2009 01:31:15.0945 (UTC) FILETIME=[47232590:01C981B1] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Hi John and Ben, On Wed, 28 Jan 2009, Drake, John E wrote: > Stewart, > > This is an e-mail I sent Andy last month, and again on Monday: > > "Great. So, it is up to the client endpoints of the MPLS TP LSP to > understand the payload contents and we could have as payloads, for > example, MPLS packets with their own label stack, IP packets, or > ethernet PW packets which in turn contain, for example, MPLS packets or > IP packets." > > So, I was optimizing for the MPLS and IP traffic, and carrying the other > stuff in a PW. > John's proposal was reusing existing technology. I believe the above proposal meets Ben's requirement: "The requirement Andy/I have is for example for BT's network to carry a link between two VZ routers such that that link appears identical to VZ's routers as though VZ had run a cable across the floor directly between them." One way to realize the above requirement is for BT to provide VZ, MPLS-TP LSP as the service interface. This service interface can carry MPLS or PWs or IP as described by John above. rahul > Thanks, > > John > > >-----Original Message----- > >From: Stewart Bryant [mailto:stbryant@cisco.com] > >Sent: Wednesday, January 28, 2009 4:11 PM > >To: Drake, John E > >Cc: Rahul Aggarwal; mpls-interop@ietf.org; Malis, Andrew G. > >(Andy); Weingarten, Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Drake, John E wrote: > >> Stewart, > >> > >> If the client and server agree to share the same stack, there is no > >> reason that this would not work. As an existence proof, we > >have MPLS > >> and non-MPLS traffic sharing links today. > >> > >John > > > >Yes - today there is a PID in the datalink that is used to > >discriminate between the MPLS encapsulated data, and the IP > >control and OAM traffic. If it's ISIS we need to get the > >various hellos, LSPs etc over as well. Then we might have CDP etc etc. > > > >So to connect the two LSRs together over an MPLS-TP cloud you > >need some multiplexing technique. > > > >Today this multiplexing is achieved using a data link with a > >PID carried over a physical link or a virtual physical link (PW). > > > >How are you proposing to carry the additional packet types > >over an MPLS-TP network with a path that is only constructed > >to carry MPLS packets? > > > >Stewart > > > > > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Wed Jan 28 23:52:26 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9B26A3A6881; Wed, 28 Jan 2009 23:52:26 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5A6293A6905 for ; Wed, 28 Jan 2009 23:52:25 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.42 X-Spam-Level: X-Spam-Status: No, score=-10.42 tagged_above=-999 required=5 tests=[AWL=0.179, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id s0ecI7vD8A2k for ; Wed, 28 Jan 2009 23:52:24 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by core3.amsl.com (Postfix) with ESMTP id E8EC83A6881 for ; Wed, 28 Jan 2009 23:52:23 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.37,343,1231113600"; d="scan'208";a="32247834" Received: from ams-dkim-1.cisco.com ([144.254.224.138]) by ams-iport-1.cisco.com with ESMTP; 29 Jan 2009 07:52:00 +0000 Received: from ams-core-1.cisco.com (ams-core-1.cisco.com [144.254.224.150]) by ams-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id n0T7q0oY017911; Thu, 29 Jan 2009 08:52:00 +0100 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id n0T7q0f3017847; Thu, 29 Jan 2009 07:52:00 GMT Received: from Stewarts-Computer.local (localhost [127.0.0.1]) by cisco.com (8.11.7p3+Sun/8.8.8) with ESMTP id n0T7pqw17412; Thu, 29 Jan 2009 07:51:53 GMT Message-ID: <49816018.4050603@cisco.com> Date: Thu, 29 Jan 2009 07:51:52 +0000 From: Stewart Bryant User-Agent: Thunderbird 2.0.0.18 (Macintosh/20081105) MIME-Version: 1.0 To: "Drake, John E" References: <20090127180128.T76169@sapphire.juniper.net> <49806CA9.2040601@cisco.com> <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> <4980F410.2080508@cisco.com> <51661468CBD1354294533DA79E85955A016B78C2@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <51661468CBD1354294533DA79E85955A016B78C2@XCH-SW-5V2.sw.nos.boeing.com> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=816; t=1233215520; x=1234079520; c=relaxed/simple; s=amsdkim1002; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=stbryant@cisco.com; z=From:=20Stewart=20Bryant=20 |Subject:=20Re=3A=20[Mpls-interop]=20MPLS=20over=20MPLS-TP |Sender:=20; bh=H6GJXlWrgCk5O5MncBkwuOv1+P13w0Z8g/Jx8QGjwEw=; b=GPZQ/bv/9Ncj5/Igb/RZsFerxKS+SVlKtHHmk1KjF7h02q1fhZFMpllS7L rHbpuu7udRtjKMlzs0QEk8KPAPEOj6qlV8MWNZe89Rti4NuWrRvs13edXb+g M6rJsm+NZ3; Authentication-Results: ams-dkim-1; header.From=stbryant@cisco.com; dkim=pass ( sig from cisco.com/amsdkim1002 verified; ); Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: stbryant@cisco.com List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Drake, John E wrote: > Stewart, > > This is an e-mail I sent Andy last month, and again on Monday: > > "Great. So, it is up to the client endpoints of the MPLS TP LSP to > understand the payload contents and we could have as payloads, for > example, MPLS packets with their own label stack, IP packets, or > ethernet PW packets which in turn contain, for example, MPLS packets or > IP packets." > > So, I was optimizing for the MPLS and IP traffic, and carrying the other > stuff in a PW. > > Thanks, > > John > > John What you seem to be saying is that the MPLS-TP (i.e. server to the MPLS client) PE dissects the traffic into three classes (one of which is a PW) and sends them in a bespoke encapsulation to the remote PE which then merges them. Is that correct? Stewart _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Thu Jan 29 05:51:47 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 117BC28C0DE; Thu, 29 Jan 2009 05:51:47 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 71EE428C0DE for ; Thu, 29 Jan 2009 05:51:46 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.46 X-Spam-Level: X-Spam-Status: No, score=-2.46 tagged_above=-999 required=5 tests=[AWL=0.139, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id H5sfYv73OGBp for ; Thu, 29 Jan 2009 05:51:45 -0800 (PST) Received: from tpamail4.verizon.com (tpamail4.verizon.com [192.76.82.161]) by core3.amsl.com (Postfix) with ESMTP id 429773A6AA5 for ; Thu, 29 Jan 2009 05:51:45 -0800 (PST) Received: from smtpftw3.verizon.com (smtpftw3.verizon.com [138.83.140.92]) by tpamail4.verizon.com (8.13.6/8.13.3) with ESMTP id n0TDh1Hf022624; Thu, 29 Jan 2009 08:43:01 -0500 (EST) Received: from ftwintrmemf2.verizon.com (ftwintrmemf2.verizon.com [138.83.131.184]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0TDpJKB028445; Thu, 29 Jan 2009 08:51:19 -0500 (EST) Received: from ftwintrmemf2.verizon.com (unknown [127.0.0.1]) by ftwintrmemf2.verizon.com (Symantec Mail Security) with ESMTP id 36478528004; Thu, 29 Jan 2009 08:51:19 -0500 (EST) X-AuditID: 8a5383b8-a3ebcbb000000647-67-4981b45759b6 Received: from smtpftw3.verizon.com (unknown [138.83.140.92]) by ftwintrmemf2.verizon.com (EMF) with ESMTP id 138744E4002; Thu, 29 Jan 2009 08:51:19 -0500 (EST) Received: from FHDP1CCMXCG01.us.one.verizon.com ([166.68.240.33]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0TDpIcF028396; Thu, 29 Jan 2009 08:51:18 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG01.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Thu, 29 Jan 2009 08:51:15 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Thu, 29 Jan 2009 08:50:34 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D9737BCAB1@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: <20090128172608.A76169@sapphire.juniper.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBscTGJ0PqWFbZQqayAxnX0QUCGQAZCu5g References: <20090127180128.T76169@sapphire.juniper.net> <49806CA9.2040601@cisco.com> <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> <4980F410.2080508@cisco.com> <51661468CBD1354294533DA79E85955A016B78C2@XCH-SW-5V2.sw.nos.boeing.com> <20090128172608.A76169@sapphire.juniper.net> From: "Malis, Andrew G. (Andy)" To: "Rahul Aggarwal" , "Drake, John E" X-OriginalArrivalTime: 29 Jan 2009 13:51:15.0977 (UTC) FILETIME=[A79E5F90:01C98218] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Rahul, If you were to put a data analyzer on an Ethernet or PPP/PoS link between two routers, you would see more going on than just IP, MPLS, and PWs, all at the same layer, for example CLNP packets for IS-IS. One could perhaps construct a pseudowire for stuff that's not IP or MPLS, but that would either require a major change to the routers being interconnected, or add a lot of complexity to the client interface on MPLS-TP switches. As Ben stated, a fundamental requirement for MPLS-TP is to be a swap-in replacement for TDM PPP/PoS, Ethernet, or just a cable across the floor in order to interconnect IP/MPLS routers as currently shipped by the entire router industry. A generic PW meets that requirement with a minimum of complexity in the MPLS-TP switches, and no changes in the client routers. It also adds the ability to do end-to-end OAM at the PW layer between the endpoint client interfaces, and to utilize PW-PW stitching between MPLS-TP domains if necessary. Here's an example, where R1 and R2 are all routers belonging to Provider 1 (P1), but only R1 can physically interconnect to P1's MPLS-TP transport network, and R2 needs to utilize a second provider's MPLS-TP transport network: Physical interconnections: R1 ----- P1 MPLS-TP domain ---- P2 MPLS-TP domain ---- R2 PW layer: |<----- Generic PW -----Original Message----- From: Rahul Aggarwal [mailto:rahul@juniper.net] Sent: Wednesday, January 28, 2009 8:31 PM To: Drake, John E Cc: stbryant@cisco.com; mpls-interop@ietf.org; Malis, Andrew G. (Andy); Weingarten, Yaacov (NSN - IL/Hod HaSharon) Subject: RE: [Mpls-interop] MPLS over MPLS-TP Hi John and Ben, On Wed, 28 Jan 2009, Drake, John E wrote: > Stewart, > > This is an e-mail I sent Andy last month, and again on Monday: > > "Great. So, it is up to the client endpoints of the MPLS TP LSP to > understand the payload contents and we could have as payloads, for > example, MPLS packets with their own label stack, IP packets, or > ethernet PW packets which in turn contain, for example, MPLS packets or > IP packets." > > So, I was optimizing for the MPLS and IP traffic, and carrying the other > stuff in a PW. > John's proposal was reusing existing technology. I believe the above proposal meets Ben's requirement: "The requirement Andy/I have is for example for BT's network to carry a link between two VZ routers such that that link appears identical to VZ's routers as though VZ had run a cable across the floor directly between them." One way to realize the above requirement is for BT to provide VZ, MPLS-TP LSP as the service interface. This service interface can carry MPLS or PWs or IP as described by John above. rahul > Thanks, > > John > > >-----Original Message----- > >From: Stewart Bryant [mailto:stbryant@cisco.com] > >Sent: Wednesday, January 28, 2009 4:11 PM > >To: Drake, John E > >Cc: Rahul Aggarwal; mpls-interop@ietf.org; Malis, Andrew G. > >(Andy); Weingarten, Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Drake, John E wrote: > >> Stewart, > >> > >> If the client and server agree to share the same stack, there is no > >> reason that this would not work. As an existence proof, we > >have MPLS > >> and non-MPLS traffic sharing links today. > >> > >John > > > >Yes - today there is a PID in the datalink that is used to > >discriminate between the MPLS encapsulated data, and the IP > >control and OAM traffic. If it's ISIS we need to get the > >various hellos, LSPs etc over as well. Then we might have CDP etc etc. > > > >So to connect the two LSRs together over an MPLS-TP cloud you > >need some multiplexing technique. > > > >Today this multiplexing is achieved using a data link with a > >PID carried over a physical link or a virtual physical link (PW). > > > >How are you proposing to carry the additional packet types > >over an MPLS-TP network with a path that is only constructed > >to carry MPLS packets? > > > >Stewart > > > > > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Thu Jan 29 05:55:49 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8C6BF3A6A71; Thu, 29 Jan 2009 05:55:49 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 40F693A6AA6 for ; Thu, 29 Jan 2009 05:55:48 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.464 X-Spam-Level: X-Spam-Status: No, score=-2.464 tagged_above=-999 required=5 tests=[AWL=0.135, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nryDSYq1VqeM for ; Thu, 29 Jan 2009 05:55:47 -0800 (PST) Received: from irvmail2.verizon.com (irvmail2.verizon.com [192.76.80.130]) by core3.amsl.com (Postfix) with ESMTP id 454803A6A71 for ; Thu, 29 Jan 2009 05:55:47 -0800 (PST) Received: from smtpftw3.verizon.com (smtpftw3.verizon.com [138.83.140.92]) by irvmail2.verizon.com (8.13.3/8.13.3) with ESMTP id n0TDtQAJ006880; Thu, 29 Jan 2009 07:55:26 -0600 (CST) Received: from tpaintrmemf3.verizon.com (tpaintrmemf3.verizon.com [138.83.67.58]) by smtpftw3.verizon.com (8.13.3/8.13.3) with ESMTP id n0TDtQ1j006738; Thu, 29 Jan 2009 08:55:26 -0500 (EST) Received: from tpaintrmemf3.verizon.com (unknown [127.0.0.1]) by tpaintrmemf3.verizon.com (Symantec Mail Security) with ESMTP id E700A528002; Thu, 29 Jan 2009 08:55:25 -0500 (EST) X-AuditID: 8a53433a-abbddbb000000647-f3-4981b54dafc2 Received: from smtptpa3.verizon.com (unknown [138.83.71.176]) by tpaintrmemf3.verizon.com (EMF) with ESMTP id C4B074E4002; Thu, 29 Jan 2009 08:55:25 -0500 (EST) Received: from FHDP1CCMXCG02.us.one.verizon.com ([166.68.240.34]) by smtptpa3.verizon.com (8.13.3/8.13.3) with ESMTP id n0TDtLZB005153; Thu, 29 Jan 2009 08:55:25 -0500 (EST) Received: from FHDP1LUMXCV24.us.one.verizon.com ([166.68.125.53]) by FHDP1CCMXCG02.us.one.verizon.com with Microsoft SMTPSVC(6.0.3790.3959); Thu, 29 Jan 2009 08:55:23 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Thu, 29 Jan 2009 08:54:51 -0500 Message-ID: <01F652C8CDBE7D4EB7ED860698C6D9737BCAB4@FHDP1LUMXCV24.us.one.verizon.com> In-reply-to: <723069625EAD3D43A95F6B4817EC5A6D0405B8@FHDP1LUMXCV24.us.one.verizon.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmBscTGJ0PqWFbZQqayAxnX0QUCGQAZCu5gAACwK9A= References: <20090127180128.T76169@sapphire.juniper.net> <49806CA9.2040601@cisco.com> <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> <4980F410.2080508@cisco.com> <51661468CBD1354294533DA79E85955A016B78C2@XCH-SW-5V2.sw.nos.boeing.com> <20090128172608.A76169@sapphire.juniper.net> <723069625EAD3D43A95F6B4817EC5A6D0405B8@FHDP1LUMXCV24.us.one.verizon.com> From: "Malis, Andrew G. (Andy)" To: "Malis, Andrew G. (Andy)" , "Rahul Aggarwal" , "Drake, John E" X-OriginalArrivalTime: 29 Jan 2009 13:55:23.0962 (UTC) FILETIME=[3B6DE1A0:01C98219] X-Brightmail-Tracker: AAAAAA== Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Whoops, this got sent too soon , let me finish it .... Rahul, If you were to put a data analyzer on an Ethernet or PPP/PoS link between two routers, you would see more going on than just IP, MPLS, and PWs, all at the same layer, for example CLNP packets for IS-IS. One could perhaps construct a pseudowire for stuff that's not IP or MPLS, but that would either require a major change to the routers being interconnected, or add a lot of complexity to the client interface on MPLS-TP switches. As Ben stated, a fundamental requirement for MPLS-TP is to be a swap-in replacement for TDM PPP/PoS, Ethernet, or just a cable across the floor in order to interconnect IP/MPLS routers as currently shipped by the entire router industry. A generic PW meets that requirement with a minimum of complexity in the MPLS-TP switches, and no changes in the client routers. It also adds the ability to do end-to-end OAM at the PW layer between the endpoint client interfaces, and to utilize PW-PW stitching between MPLS-TP domains if necessary. Here's an example, where R1 and R2 are both routers belonging to Provider 1 (P1), but only R1 can physically interconnect to P1's MPLS-TP transport network, and R2 needs to utilize a second provider's MPLS-TP transport network: Physical interconnections: R1 ----- P1 MPLS-TP domain ---- P2 MPLS-TP domain ---- R2 PW layer: |<----- Stitched generic PW ---------->| MPLS-TP layer: |<----LSP------->| |<----LSP------->| Cheers, Andy -----Original Message----- From: Rahul Aggarwal [mailto:rahul@juniper.net] Sent: Wednesday, January 28, 2009 8:31 PM To: Drake, John E Cc: stbryant@cisco.com; mpls-interop@ietf.org; Malis, Andrew G. (Andy); Weingarten, Yaacov (NSN - IL/Hod HaSharon) Subject: RE: [Mpls-interop] MPLS over MPLS-TP Hi John and Ben, On Wed, 28 Jan 2009, Drake, John E wrote: > Stewart, > > This is an e-mail I sent Andy last month, and again on Monday: > > "Great. So, it is up to the client endpoints of the MPLS TP LSP to > understand the payload contents and we could have as payloads, for > example, MPLS packets with their own label stack, IP packets, or > ethernet PW packets which in turn contain, for example, MPLS packets or > IP packets." > > So, I was optimizing for the MPLS and IP traffic, and carrying the other > stuff in a PW. > John's proposal was reusing existing technology. I believe the above proposal meets Ben's requirement: "The requirement Andy/I have is for example for BT's network to carry a link between two VZ routers such that that link appears identical to VZ's routers as though VZ had run a cable across the floor directly between them." One way to realize the above requirement is for BT to provide VZ, MPLS-TP LSP as the service interface. This service interface can carry MPLS or PWs or IP as described by John above. rahul > Thanks, > > John > > >-----Original Message----- > >From: Stewart Bryant [mailto:stbryant@cisco.com] > >Sent: Wednesday, January 28, 2009 4:11 PM > >To: Drake, John E > >Cc: Rahul Aggarwal; mpls-interop@ietf.org; Malis, Andrew G. > >(Andy); Weingarten, Yaacov (NSN - IL/Hod HaSharon) > >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > > > >Drake, John E wrote: > >> Stewart, > >> > >> If the client and server agree to share the same stack, there is no > >> reason that this would not work. As an existence proof, we > >have MPLS > >> and non-MPLS traffic sharing links today. > >> > >John > > > >Yes - today there is a PID in the datalink that is used to > >discriminate between the MPLS encapsulated data, and the IP > >control and OAM traffic. If it's ISIS we need to get the > >various hellos, LSPs etc over as well. Then we might have CDP etc etc. > > > >So to connect the two LSRs together over an MPLS-TP cloud you > >need some multiplexing technique. > > > >Today this multiplexing is achieved using a data link with a > >PID carried over a physical link or a virtual physical link (PW). > > > >How are you proposing to carry the additional packet types > >over an MPLS-TP network with a path that is only constructed > >to carry MPLS packets? > > > >Stewart > > > > > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Thu Jan 29 07:15:25 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2DAE828C1DC; Thu, 29 Jan 2009 07:15:25 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 33E3D28C1DC for ; Thu, 29 Jan 2009 07:15:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.192 X-Spam-Level: X-Spam-Status: No, score=-2.192 tagged_above=-999 required=5 tests=[AWL=0.058, BAYES_00=-2.599, HELO_EQ_SE=0.35] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1xZ5NbrCMQac for ; Thu, 29 Jan 2009 07:15:23 -0800 (PST) Received: from ns.elverljung.se (ns.elverljung.se [194.68.48.116]) by core3.amsl.com (Postfix) with ESMTP id DDD6428C1DF for ; Thu, 29 Jan 2009 07:15:22 -0800 (PST) Received: from [192.168.0.101] (h133n2fls33o883.telia.com [217.208.62.133]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: loa) by ns.elverljung.se (Postfix) with ESMTPSA id 284BE2D840D; Thu, 29 Jan 2009 16:15:03 +0100 (CET) Message-ID: <4981C7F3.8060605@pi.nu> Date: Thu, 29 Jan 2009 16:14:59 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: "Malis, Andrew G. (Andy)" References: <20090127180128.T76169@sapphire.juniper.net> <49806CA9.2040601@cisco.com> <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> <4980F410.2080508@cisco.com> <51661468CBD1354294533DA79E85955A016B78C2@XCH-SW-5V2.sw.nos.boeing.com> <20090128172608.A76169@sapphire.juniper.net> <723069625EAD3D43A95F6B4817EC5A6D0405B8@FHDP1LUMXCV24.us.one.verizon.com> <01F652C8CDBE7D4EB7ED860698C6D9737BCAB4@FHDP1LUMXCV24.us.one.verizon.com> In-Reply-To: <01F652C8CDBE7D4EB7ED860698C6D9737BCAB4@FHDP1LUMXCV24.us.one.verizon.com> Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org All, I'm a little bit lost on what is discussed here; what is possible, what is practical, what we want to do or what is desirable. Today we can run ip, mpls and pws over mpls, consequently we can (unless we do something to stop it) run ip, mpls and pws over mpls-tp We can also run mpls-tp over mpls. As a matter of fact it is also possible to run mpls and mpls-tp over ip, at least for the mpls case this has turned to be very practical time and again. When runing mpls-tp over mpls or mpls over mpls-tp, we have three options. - We can use a single label stack (just one bos) - We can use the bos as a de-limiter (is that a word?), the bos is once for mpls-tp and once for mpls. - We can use a pw For me this is mostly a deployment or operational choice. If we want to run mpls and ip in a pw, this needs to be defined in the pwe3 wg, but other than that I don't see anything that we need to do. /Loa Malis, Andrew G. (Andy) wrote: > Whoops, this got sent too soon , let me finish it .... > > Rahul, > > If you were to put a data analyzer on an Ethernet or PPP/PoS link > between two routers, you would see more going on than just IP, MPLS, and > PWs, all at the same layer, for example CLNP packets for IS-IS. One > could perhaps construct a pseudowire for stuff that's not IP or MPLS, > but that would either require a major change to the routers being > interconnected, or add a lot of complexity to the client interface on > MPLS-TP switches. > > As Ben stated, a fundamental requirement for MPLS-TP is to be a swap-in > replacement for TDM PPP/PoS, Ethernet, or just a cable across the floor > in order to interconnect IP/MPLS routers as currently shipped by the > entire router industry. A generic PW meets that requirement with a > minimum of complexity in the MPLS-TP switches, and no changes in the > client routers. It also adds the ability to do end-to-end OAM at the PW > layer between the endpoint client interfaces, and to utilize PW-PW > stitching between MPLS-TP domains if necessary. > > Here's an example, where R1 and R2 are both routers belonging to > Provider 1 (P1), but only R1 can physically interconnect to P1's MPLS-TP > transport network, and R2 needs to utilize a second provider's MPLS-TP > transport network: > > > Physical interconnections: R1 ----- P1 MPLS-TP domain ---- P2 MPLS-TP > domain ---- R2 > PW layer: |<----- Stitched generic PW > ---------->| > MPLS-TP layer: |<----LSP------->| > |<----LSP------->| > > Cheers, > Andy > > -----Original Message----- > From: Rahul Aggarwal [mailto:rahul@juniper.net] > Sent: Wednesday, January 28, 2009 8:31 PM > To: Drake, John E > Cc: stbryant@cisco.com; mpls-interop@ietf.org; Malis, Andrew G. (Andy); > Weingarten, Yaacov (NSN - IL/Hod HaSharon) > Subject: RE: [Mpls-interop] MPLS over MPLS-TP > > > Hi John and Ben, > > On Wed, 28 Jan 2009, Drake, John E wrote: > >> Stewart, >> >> This is an e-mail I sent Andy last month, and again on Monday: >> >> "Great. So, it is up to the client endpoints of the MPLS TP LSP to >> understand the payload contents and we could have as payloads, for >> example, MPLS packets with their own label stack, IP packets, or >> ethernet PW packets which in turn contain, for example, MPLS packets > or >> IP packets." >> >> So, I was optimizing for the MPLS and IP traffic, and carrying the > other >> stuff in a PW. >> > > John's proposal was reusing existing technology. I believe the > above proposal meets Ben's requirement: > > "The requirement Andy/I have is for example for BT's network to carry a > link between two VZ routers such that that link appears identical to > VZ's > routers as though VZ had run a cable across the floor directly between > them." > > One way to realize the above requirement is for BT to provide VZ, > MPLS-TP > LSP as the service interface. This service interface can carry MPLS or > PWs > or IP as described by John above. > > rahul > > > >> Thanks, >> >> John >> >>> -----Original Message----- >>> From: Stewart Bryant [mailto:stbryant@cisco.com] >>> Sent: Wednesday, January 28, 2009 4:11 PM >>> To: Drake, John E >>> Cc: Rahul Aggarwal; mpls-interop@ietf.org; Malis, Andrew G. >>> (Andy); Weingarten, Yaacov (NSN - IL/Hod HaSharon) >>> Subject: Re: [Mpls-interop] MPLS over MPLS-TP >>> >>> Drake, John E wrote: >>>> Stewart, >>>> >>>> If the client and server agree to share the same stack, there is no >>>> reason that this would not work. As an existence proof, we >>> have MPLS >>>> and non-MPLS traffic sharing links today. >>>> >>> John >>> >>> Yes - today there is a PID in the datalink that is used to >>> discriminate between the MPLS encapsulated data, and the IP >>> control and OAM traffic. If it's ISIS we need to get the >>> various hellos, LSPs etc over as well. Then we might have CDP etc > etc. >>> So to connect the two LSRs together over an MPLS-TP cloud you >>> need some multiplexing technique. >>> >>> Today this multiplexing is achieved using a data link with a >>> PID carried over a physical link or a virtual physical link (PW). >>> >>> How are you proposing to carry the additional packet types >>> over an MPLS-TP network with a path that is only constructed >>> to carry MPLS packets? >>> >>> Stewart >>> >>> >> > _______________________________________________ > Mpls-interop mailing list > Mpls-interop@ietf.org > https://www.ietf.org/mailman/listinfo/mpls-interop -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Thu Jan 29 08:27:19 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B39783A6843; Thu, 29 Jan 2009 08:27:19 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1BFF63A68DB for ; Thu, 29 Jan 2009 08:27:19 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.566 X-Spam-Level: X-Spam-Status: No, score=-6.566 tagged_above=-999 required=5 tests=[AWL=0.033, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id sE+mpOlgxhBe for ; Thu, 29 Jan 2009 08:27:18 -0800 (PST) Received: from stl-smtpout-01.boeing.com (stl-smtpout-01.boeing.com [130.76.96.56]) by core3.amsl.com (Postfix) with ESMTP id 410FD3A6843 for ; Thu, 29 Jan 2009 08:27:18 -0800 (PST) Received: from stl-av-01.boeing.com (stl-av-01.boeing.com [192.76.190.6]) by stl-smtpout-01.ns.cs.boeing.com (8.14.0/8.14.0/8.14.0/SMTPOUT) with ESMTP id n0TGQkf5023716 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Thu, 29 Jan 2009 10:26:46 -0600 (CST) Received: from stl-av-01.boeing.com (localhost [127.0.0.1]) by stl-av-01.boeing.com (8.14.0/8.14.0/DOWNSTREAM_RELAY) with ESMTP id n0TGQk3q004604; Thu, 29 Jan 2009 10:26:46 -0600 (CST) Received: from xch-swbh-11.sw.nos.boeing.com (xch-swbh-11.sw.nos.boeing.com [129.172.192.157]) by stl-av-01.boeing.com (8.14.0/8.14.0/UPSTREAM_RELAY) with ESMTP id n0TGQQwm004145; Thu, 29 Jan 2009 10:26:46 -0600 (CST) Received: from XCH-SW-5V2.sw.nos.boeing.com ([129.172.193.50]) by xch-swbh-11.sw.nos.boeing.com with Microsoft SMTPSVC(6.0.3790.3959); Thu, 29 Jan 2009 08:26:43 -0800 x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Thu, 29 Jan 2009 08:26:23 -0800 Message-ID: <51661468CBD1354294533DA79E85955A016B7977@XCH-SW-5V2.sw.nos.boeing.com> In-Reply-To: <49816018.4050603@cisco.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Mpls-interop] MPLS over MPLS-TP Thread-Index: AcmB5nqogmDoVPfwRl6ude8rnPsmWQARwx4g References: <20090127180128.T76169@sapphire.juniper.net> <49806CA9.2040601@cisco.com> <51661468CBD1354294533DA79E85955A016B7615@XCH-SW-5V2.sw.nos.boeing.com> <4980F410.2080508@cisco.com> <51661468CBD1354294533DA79E85955A016B78C2@XCH-SW-5V2.sw.nos.boeing.com> <49816018.4050603@cisco.com> From: "Drake, John E" To: X-OriginalArrivalTime: 29 Jan 2009 16:26:43.0164 (UTC) FILETIME=[5F0E29C0:01C9822E] Cc: mpls-interop@ietf.org, "Weingarten, Yaacov \(NSN - IL/Hod HaSharon\)" , neil.2.harrison@bt.com Subject: Re: [Mpls-interop] MPLS over MPLS-TP X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Stewart, No, the three types of packets are all multiplexed together across the service interface. I think there would need to be an indication across the service interface that a given packet is an MPLS packet, so that the reserved label could be set at the bottom of the server stack, since you and George won't let the first nibble of the packet be used for this. Thanks, John >-----Original Message----- >From: Stewart Bryant [mailto:stbryant@cisco.com] >Sent: Wednesday, January 28, 2009 11:52 PM >To: Drake, John E >Cc: Rahul Aggarwal; mpls-interop@ietf.org; Malis, Andrew G. >(Andy); Weingarten, Yaacov (NSN - IL/Hod HaSharon) >Subject: Re: [Mpls-interop] MPLS over MPLS-TP > >Drake, John E wrote: >> Stewart, >> >> This is an e-mail I sent Andy last month, and again on Monday: >> >> "Great. So, it is up to the client endpoints of the MPLS TP LSP to >> understand the payload contents and we could have as payloads, for >> example, MPLS packets with their own label stack, IP packets, or >> ethernet PW packets which in turn contain, for example, MPLS packets >> or IP packets." >> >> So, I was optimizing for the MPLS and IP traffic, and carrying the >> other stuff in a PW. >> >> Thanks, >> >> John >> >> >John > >What you seem to be saying is that the MPLS-TP (i.e. server to the MPLS >client) PE >dissects the traffic into three classes (one of which is a PW) >and sends them in a bespoke encapsulation to the remote PE >which then merges them. > >Is that correct? > >Stewart > > > _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 30 04:27:30 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 59DAB3A6861; Fri, 30 Jan 2009 04:27:30 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0DA7528C21A; Fri, 30 Jan 2009 04:24:18 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.344 X-Spam-Level: X-Spam-Status: No, score=-2.344 tagged_above=-999 required=5 tests=[AWL=-0.095, BAYES_00=-2.599, HELO_EQ_SE=0.35] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0cYkyolKRlwc; Fri, 30 Jan 2009 04:24:17 -0800 (PST) Received: from ns.elverljung.se (ns.elverljung.se [194.68.48.116]) by core3.amsl.com (Postfix) with ESMTP id 3FA6928C10A; Fri, 30 Jan 2009 04:24:17 -0800 (PST) Received: from [192.36.158.123] (wdhcp-158-123.verkstad.net [192.36.158.123]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: loa) by ns.elverljung.se (Postfix) with ESMTPSA id B11A02D840D; Fri, 30 Jan 2009 13:23:56 +0100 (CET) Message-ID: <4982F158.2090407@pi.nu> Date: Fri, 30 Jan 2009 13:23:52 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: Yoichi Maeda , Greg Jones , Ghani Abbas , Huub Van Helvoort , Malcolm Betts , "Hing-Kam Lam hklam"@alcatel-lucent.com, tsbsg15@itu.int, statements@ietf.org X-Mailman-Approved-At: Fri, 30 Jan 2009 04:27:29 -0800 Cc: Olaf Kolkman , Russ Housley , Scott Bradner , IETF MEAD team Subject: [Mpls-interop] Liaison "Response to SG15 comments on MPLS-TP requirements" X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="windows-1252"; Format="flowed" Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org Dear Mr. Maeda, Mr. Abbas, Mr. van Helvoort, Mr. Betts and Mr. Lam Please find a liaison "Response to SG15 comments on MPLS-TP requirements" in response to your liaison dated December 25, 2008 titled =93Comments on MPLS-TP working group drafts=94. Loa Andersson Chair of the MEAD Team. -- = Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop From mpls-interop-bounces@ietf.org Fri Jan 30 04:30:10 2009 Return-Path: X-Original-To: mpls-interop-archive@ietf.org Delivered-To: ietfarch-mpls-interop-archive@core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A05183A682C; Fri, 30 Jan 2009 04:30:10 -0800 (PST) X-Original-To: mpls-interop@core3.amsl.com Delivered-To: mpls-interop@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 41E023A68A2; Fri, 30 Jan 2009 04:29:27 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.342 X-Spam-Level: X-Spam-Status: No, score=-2.342 tagged_above=-999 required=5 tests=[AWL=-0.093, BAYES_00=-2.599, HELO_EQ_SE=0.35] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kSumnif0fjTB; Fri, 30 Jan 2009 04:29:26 -0800 (PST) Received: from ns.elverljung.se (ns.elverljung.se [194.68.48.116]) by core3.amsl.com (Postfix) with ESMTP id 91CFB3A6861; Fri, 30 Jan 2009 04:29:25 -0800 (PST) Received: from [192.36.158.123] (wdhcp-158-123.verkstad.net [192.36.158.123]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: loa) by ns.elverljung.se (Postfix) with ESMTPSA id 884A02D840E; Fri, 30 Jan 2009 13:29:05 +0100 (CET) Message-ID: <4982F28C.8050600@pi.nu> Date: Fri, 30 Jan 2009 13:29:00 +0100 From: Loa Andersson User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: Yoichi Maeda , Greg Jones , Ghani Abbas , Huub Van Helvoort , Malcolm Betts , "Hing-Kam Lam hklam"@alcatel-lucent.com, tsbsg15@itu.int, statements@ietf.org References: <4982F158.2090407@pi.nu> In-Reply-To: <4982F158.2090407@pi.nu> Content-Type: multipart/mixed; boundary="------------040308010604020507020203" X-Mailman-Approved-At: Fri, 30 Jan 2009 04:30:09 -0800 Cc: Olaf Kolkman , Russ Housley , Scott Bradner , IETF MEAD team Subject: Re: [Mpls-interop] Liaison "Response to SG15 comments on MPLS-TP requirements" X-BeenThere: mpls-interop@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IETF MPLS Interoperability Design Team List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: mpls-interop-bounces@ietf.org Errors-To: mpls-interop-bounces@ietf.org This is a multi-part message in MIME format. --------------040308010604020507020203 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit now with the attachment /Loa Loa Andersson wrote: > Dear Mr. Maeda, Mr. Abbas, Mr. van Helvoort, Mr. Betts and Mr. Lam > > Please find a liaison "Response to SG15 comments on MPLS-TP > requirements" in response to your liaison dated December 25, 2008 > titled “Comments on MPLS-TP working group drafts”. > > Loa Andersson > Chair of the MEAD Team. > -- Loa Andersson Sr Strategy and Standards Manager Ericsson /// phone: +46 8 632 77 14 email: loa.andersson@ericsson.com loa.andersson@redback.com loa@pi.nu --------------040308010604020507020203 Content-Type: application/msword; name="mpls-tp-requirements.doc" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="mpls-tp-requirements.doc" 0M8R4KGxGuEAAAAAAAAAAAAAAAAAAAAAPgADAP7/CQAGAAAAAAAAAAAAAAABAAAARwAAAAAA AAAAEAAASQAAAAEAAAD+////AAAAAEYAAAD///////////////////////////////////// //////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////// 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--------------040308010604020507020203 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Mpls-interop mailing list Mpls-interop@ietf.org https://www.ietf.org/mailman/listinfo/mpls-interop --------------040308010604020507020203--