From rbridge-bounces@postel.org Mon Jan 2 02:25:46 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4541C21F8E92 for ; Mon, 2 Jan 2012 02:25:46 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.739 X-Spam-Level: X-Spam-Status: No, score=-4.739 tagged_above=-999 required=5 tests=[BAYES_20=-0.74, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 06+qkv-3p2nv for ; Mon, 2 Jan 2012 02:25:45 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 4B81E21F8E48 for ; Mon, 2 Jan 2012 02:25:45 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q02A7AAQ015975; Mon, 2 Jan 2012 02:07:11 -0800 (PST) Received: from mail-ey0-f180.google.com (mail-ey0-f180.google.com [209.85.215.180]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q02A6aGq015956 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Mon, 2 Jan 2012 02:06:45 -0800 (PST) Received: by eaac11 with SMTP id c11so18497595eaa.39 for ; Mon, 02 Jan 2012 02:06:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=U/yt8sTcpLvv7qsw6wzey6kue50/LZZ6UBdmdVYLJ3I=; b=BOPxFBjKkM6ADNPYETPyvGvYDME+Gq+IsFoOgasTTmVgQkpzNMNUVSp+5fXEykXfug WzWry9UM496R0vgygTZd/V5S92yOuWPubd1SnRVoykKuR2nxH/sBwwEDJBpuuvHMHkSD SEldakcU4HPFawxpyxh27bXT0D01+u2MUaxsM= Received: by 10.204.154.200 with SMTP id p8mr11193803bkw.4.1325498795278; Mon, 02 Jan 2012 02:06:35 -0800 (PST) MIME-Version: 1.0 Received: by 10.204.174.76 with HTTP; Mon, 2 Jan 2012 02:06:14 -0800 (PST) In-Reply-To: References: From: Joydeb Roy Date: Mon, 2 Jan 2012 15:36:14 +0530 Message-ID: To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: joydeb@gmail.com Subject: [rbridge] query regd. TRILL scenario X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0583977676==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============0583977676== Content-Type: multipart/alternative; boundary=0015175cd050d7c3ab04b588bc5e --0015175cd050d7c3ab04b588bc5e Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Hi Authors, Please let me know if my understanding is proper in the below case. If yes, then please clarify the doubts and if no, then please correct wherever applicable. Generally, RBridges learn about end stations on access ports and they communicate with each other to form adjacency through trunk ports. But if we consider the following diagram =96 +---------+ +---------+ | RB1 | | End | +-----+ ------ +---------+ | | ------ | Hub | | Station | +-----+ ------ +---------+ +---------+ | RB2 | +---------+ How do the involved ports in RB1 and RB2 behave in this case? Do both of them manage to learn about the End Station and one of them becomes the DRB based upon the configured priorities? Also, do they manage to form an adjacency between them? If so, then how do they manage so in spite of the ports being designated as access? Thank you. Best regards Joy --0015175cd050d7c3ab04b588bc5e Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable

Hi Authors,

=A0

Please let me know if my understanding is proper in = the below case. If yes, then please clarify the doubts and if no, then plea= se correct wherever applicable.


Generally, RBridges learn about end stations on access ports and they communicate with each other to form adjacency through trunk ports. =A0But if we consider the following diagram =96


+----= -----+=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 |= =A0=A0 RB1=A0=A0 |
|=A0=A0 End=A0=A0 |=A0=A0= =A0=A0=A0=A0=A0 +-----+ ------ +---------+
|= =A0=A0=A0=A0=A0=A0=A0=A0 | ------ | Hub |
| Station |=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 RB2=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= +---------+


How do the involved ports in RB1 and RB2 behave in t= his case? Do both of them manage to learn about the End Station and one of them becomes the DRB based upon the configured priorities? Also, do they manage = to form an adjacency between them? If so, then how do they manage so in spite of the p= orts being designated as access?

=A0

Thank you.

=A0

Best regards

Joy


--0015175cd050d7c3ab04b588bc5e-- --===============0583977676== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0583977676==-- From rbridge-bounces@postel.org Mon Jan 2 06:39:32 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1E53121F8500 for ; Mon, 2 Jan 2012 06:39:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.625 X-Spam-Level: X-Spam-Status: No, score=-105.625 tagged_above=-999 required=5 tests=[AWL=0.974, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nDzMRVpaELXs for ; Mon, 2 Jan 2012 06:39:31 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 70BE321F84F8 for ; Mon, 2 Jan 2012 06:39:31 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q02EMFG2018139; Mon, 2 Jan 2012 06:22:17 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q02ELk01018121 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Mon, 2 Jan 2012 06:21:56 -0800 (PST) Received: by lahj13 with SMTP id j13so9897613lah.39 for ; Mon, 02 Jan 2012 06:21:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=YcyjsFak/67vAIhVNyK7rcYRNp8Y/B6NJatUkMecjDA=; b=EccoTE5sCVptIVwxstI/7mu0/jRbb5tIN98NQlFt1vGGc1XAqDaTH22NGv6tQ5huH2 Hc6bjRtTQgfnUYuCrAaPq/P5TEYPfcm/iPPBy59vWBqTZju72Lns9sTehQdaoDKRnW3f P0i5q0E/YanIzytkYvwPLPyM0R7Xk+x9ROGTc= Received: by 10.152.128.196 with SMTP id nq4mr41153232lab.35.1325514105373; Mon, 02 Jan 2012 06:21:45 -0800 (PST) MIME-Version: 1.0 Received: by 10.152.112.99 with HTTP; Mon, 2 Jan 2012 06:21:24 -0800 (PST) In-Reply-To: References: From: Donald Eastlake Date: Mon, 2 Jan 2012 09:21:24 -0500 Message-ID: To: Joydeb Roy X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q02ELk01018121 Cc: rbridge@postel.org Subject: Re: [rbridge] query regd. TRILL scenario X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Hi Joybed, On Mon, Jan 2, 2012 at 5:06 AM, Joydeb Roy wrote: > Hi Authors, > > Please let me know if my understanding is proper in the below case. If ye= s, > then please clarify the doubts and if no, then please correct wherever > applicable. > > Generally, RBridges learn about end stations on access ports and they > communicate with each other to form adjacency through trunk ports. =A0But= if > we consider the following diagram =96 TRILL tries to be zero/minimum configuration. So by default, RBridge ports are universal ports that can handle both native and TRILL Data frames. RBridge access and trunk ports are ports that have been configured to restrict them. While this is commonly a good idea, it is not necessary for correct operation. In any case, TRILL Hellos are always sent out RBridge ports unless the port is disabled or configured as point-to-point (in which case point-to-point Hellos get sent on them). > =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=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0 |=A0=A0 RB1=A0=A0 | > |=A0=A0 End=A0=A0 |=A0=A0=A0=A0=A0=A0=A0 +-----+ ------ +---------+ > |=A0=A0=A0=A0=A0=A0=A0=A0 | ------ | Hub | > | Station |=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 RB2=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 +---------+ > > How do the involved ports in RB1 and RB2 behave in this case? Do both of > them manage to learn about the End Station and one of them becomes the DRB > based upon the configured priorities? Also, do they manage to form an > adjacency between them? If so, then how do they manage so in spite of the > ports being designated as access? As above, TRILL Hellos are still sent out the ports of RB1 & RB2 whether or not the "access port" configuration bit has been turned on for those ports. So they form an adjacency and one is elected DRB on the link. By default, the DRB will handle all the native traffic to/from the End Station. The other RBridge will see all that traffic but will throw it away because by default it is not the Appointed Forwarder for any VLAN on the link. However, the DRB can assign some or all VLANs to the non-DRB RBridge as Appointed Forwarder. > Thank you. > > Best regards > Joy Hope the above helps. Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Mon Jan 2 19:47:24 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E81A421F8467 for ; Mon, 2 Jan 2012 19:47:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.616 X-Spam-Level: X-Spam-Status: No, score=-105.616 tagged_above=-999 required=5 tests=[AWL=0.983, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GxTnVw-IohOI for ; Mon, 2 Jan 2012 19:47:24 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 14F6E21F8465 for ; Mon, 2 Jan 2012 19:47:22 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q033WXl6024429; Mon, 2 Jan 2012 19:32:35 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q033W6P7024411 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Mon, 2 Jan 2012 19:32:16 -0800 (PST) Received: by lahj13 with SMTP id j13so10138522lah.39 for ; Mon, 02 Jan 2012 19:32:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=qqsOVViYuNMkZFgCpJUFqE1DeH1zdJ8jh6OMgl7mjgg=; b=SIH3kOs3Kpknp4L98ygY05feKYndWafKShhLzyOpAwbBlzY6XOeby4w+F8V+icE85o LsX205NEhbi/rOWVr1W1jTBdytgyAUgVZdsN9Z/C2eRKL+MTtuPVWbtUTfbnInbmZh2Q WzBWcmWpnaY/O/Kp5p8++D4Arkn8UIbJ7K3rA= Received: by 10.152.128.196 with SMTP id nq4mr42915260lab.35.1325561525406; Mon, 02 Jan 2012 19:32:05 -0800 (PST) MIME-Version: 1.0 Received: by 10.152.112.99 with HTTP; Mon, 2 Jan 2012 19:31:44 -0800 (PST) In-Reply-To: <004b01ccc3c9$938f32e0$baad98a0$@com> References: <20111222170804.19780.64895.idtracker@ietfa.amsl.com> <004b01ccc3c9$938f32e0$baad98a0$@com> From: Donald Eastlake Date: Mon, 2 Jan 2012 22:31:44 -0500 Message-ID: To: Yizhou Li X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q033W6P7024411 Cc: rbridge@postel.org Subject: Re: [rbridge] I-D Action: draft-ietf-trill-rbridge-extension-01.txt X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Hi Yizhou, On Mon, Dec 26, 2011 at 7:26 AM, Yizhou Li wrote: > Hi Donald, > > Some comments and thoughts when I read the draft, > > 1. pg4, right below bullets > =A0 "Any RBridge receiving a frame with a critical hop-by-hop extension > =A0 that it does not implement MUST discard the frame because it is > =A0 unsafe to process the frame without understanding such a critical > =A0 extension. Any egress RBridge receiving a frame with a critical > =A0 ingress-to-egress or hop-by-hop extension it does not implement MUST > =A0 drop the frame if it is a known unicast frame; if it is a multi- > =A0 destination TRILL Data frame, then it MUST NOT be egressed at that > =A0 RBridge but it is still forwarded on the distribution tree. Non- > =A0 critical extensions can be safely ignored." > > It is unclear to me what a RB should do if it receives a multi-destination > frame with a critical hop-by-hop extension that it does not implement? > 1st sentence suggests to discard it and the end of second last sentence > suggests to forward it on the tree? > Suggest to remove "or hop-by-hop" in 2nd sentence. Good point. I will remove "or hop-by-hop" and probably split the paragraph in to three paragraphs, one on hop-by-hop critical, one on ingress-egress critical, and one on non-critical. > 2. pg5, L3, "some such frames them to be" -> some of them to be OK. > 3. pg7, section 2.3.1, > Can we call "extensions after the first word in the extensions area" to be > "TLV extensions"? I would prefer to leave the wording as is. In the draft-ietf-trill-rbridge-options working group draft, there is already one additional word of non-TLV extension described... > Another general comment, use a table to show the whole extension area > structure which contains the Extension Header Flags as that in section 2.3 > and the optional non-flag TLV extensions which is 32-bit aligned. I could extend that digram and adjust the wording a bit so it is clearer how the word of flags fits in the TRILL Header extension area... Something like this: 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |Crit.| CHbH | NCHbH |CRSV | NCRSV | CItE | NCItE | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | ... additional optional 32-bit aligned words of extension | | including TLV extensions ... > 4. pg4, bottom, Note section. > I think there is mixture of slow path & fast path case if future hardware > can support certain flag directly, e.g. some flag requires forwarding the > frame in data plane as normal and copy it to the control plane for further > processing at the same time. While that could happen for some assortments of options and hardware support, this note is just a general warning to be cautious in using extensions. I don't think it needs to be more complicated. > 5. pg10, section 3. Table 1. Extended Header Flags Area > Suggest to define bit 3 for a critical hop-by-hop RBridge Channel Alert > Flag. It may be useful in assisting some channel features, like the source > routing with strict path specified. I think including such a flag a good idea. I'll add it unless there are objections, probably as bit 7 so it is adjacent to the non-critical Channel Alert Flag currently defined in the draft. > 6. pg8, section 2.4 > Better to explicitly state that the conflicts may not be resolved to achi= eve > the same consequence at every transit RB for a single data frame even > following the rules described. It highly depends on the capability that an > RB can support. OK. Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com > Thanks, > Yizhou > > > -----Original Message----- > From: rbridge-bounces@postel.org [mailto:rbridge-bounces@postel.org] On > Behalf Of Donald Eastlake > Sent: Friday, December 23, 2011 1:18 AM > To: rbridge@postel.org > Subject: Re: [rbridge] I-D Action: draft-ietf-trill-rbridge-extension-01.= txt > > This revision just has editorial changes and author information update. > > Thanks, > Donald > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D > =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) > =A0155 Beaver Street,=A0Milford, MA 01757 USA > =A0d3e3e3@gmail.com > > On Thu, Dec 22, 2011 at 12:08 PM, =A0 wrote: >> >> A New Internet-Draft is available from the on-line Internet-Drafts > directories. This draft is a work item of the Transparent Interconnection= of > Lots of Links Working Group of the IETF. >> >> =A0 =A0 =A0 =A0Title =A0 =A0 =A0 =A0 =A0 : TRILL: Header Extension >> =A0 =A0 =A0 =A0Author(s) =A0 =A0 =A0 : Donald Eastlake >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Anoop Ghanwani >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Vishwas Manral >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Caitlin Bestler >> =A0 =A0 =A0 =A0Filename =A0 =A0 =A0 =A0: draft-ietf-trill-rbridge-extens= ion-01.txt >> =A0 =A0 =A0 =A0Pages =A0 =A0 =A0 =A0 =A0 : 16 >> =A0 =A0 =A0 =A0Date =A0 =A0 =A0 =A0 =A0 =A0: 2011-12-22 >> >> =A0 The TRILL base protocol standard specifies minimal hooks to safely >> =A0 support TRILL Header extensions. This document specifies an initial >> =A0 extension providing additional flag bits and specifies one of those >> =A0 bits. >> >> >> >> A URL for this Internet-Draft is: >> > http://www.ietf.org/internet-drafts/draft-ietf-trill-rbridge-extension-01= .tx > t >> >> Internet-Drafts are also available by anonymous FTP at: >> ftp://ftp.ietf.org/internet-drafts/ >> >> This Internet-Draft can be retrieved at: >> > ftp://ftp.ietf.org/internet-drafts/draft-ietf-trill-rbridge-extension-01.= txt > > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge > _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Mon Jan 2 23:09:40 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 495D821F8581 for ; Mon, 2 Jan 2012 23:09:37 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.669 X-Spam-Level: X-Spam-Status: No, score=-5.669 tagged_above=-999 required=5 tests=[AWL=0.929, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bciSwJJIbHrI for ; Mon, 2 Jan 2012 23:09:35 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 5D04221F8583 for ; Mon, 2 Jan 2012 23:09:35 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q036qa8m017974; Mon, 2 Jan 2012 22:52:37 -0800 (PST) Received: from mail-ey0-f180.google.com (mail-ey0-f180.google.com [209.85.215.180]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q036qJ5q017954 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Mon, 2 Jan 2012 22:52:28 -0800 (PST) Received: by eaac11 with SMTP id c11so19522350eaa.39 for ; Mon, 02 Jan 2012 22:52:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=J3SVd0cOYSrUnACbj4f2H28LrisgzILAc5NC5K3jj40=; b=pHrguyml9idh9J5qLtzUuOuku7HsqeoY7y3KbL4RY6Pz2GUlF1qUtoE4XG0xbRdjii wVBBmKGLuju8sUfD7e+9x2DSxlhs2yAV3K5z3lDmmq5mb4Ic5o7s2Cv424f9l4dow8ms sdwIltKt7buFV4Ze0OG1lAU0UKD/VT6FUnkuw= Received: by 10.204.147.194 with SMTP id m2mr11850926bkv.22.1325573538232; Mon, 02 Jan 2012 22:52:18 -0800 (PST) MIME-Version: 1.0 Received: by 10.204.174.76 with HTTP; Mon, 2 Jan 2012 22:51:57 -0800 (PST) In-Reply-To: References: From: Joydeb Roy Date: Tue, 3 Jan 2012 12:21:57 +0530 Message-ID: To: Donald Eastlake X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: joydeb@gmail.com Cc: rbridge@postel.org Subject: Re: [rbridge] query regd. TRILL scenario X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0561582144==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============0561582144== Content-Type: multipart/alternative; boundary=0015174c0ef4debb0604b59a23ed --0015174c0ef4debb0604b59a23ed Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Hi Donald, Thanks a lot for your reply. The understanding is indeed much better now. Just another query though regarding the AVF part you mentioned in your comments - Now, I understand that the default the DRB will carry all the traffic to and fro the end-user. But when the DRB does decide to distribute the traffic to other rbridges then what propels it to make that decision? The last sentence of the Section 2.2 from the RFC 6439 states - "How the DRB decides what other RBridges on the link, if any, to appoint forwarder for which VLANs is beyond the scope of this document." So, is there any other standard document that I can refer to? Is the behavior totally dynamic in nature e.g. the DRB takes such decision through the usage of some algorithm? Or should it be configurable, so that the Network Admin takes the last call? Thank you. Best regards Joy On Mon, Jan 2, 2012 at 7:51 PM, Donald Eastlake wrote: > Hi Joybed, > > On Mon, Jan 2, 2012 at 5:06 AM, Joydeb Roy wrote: > > Hi Authors, > > > > Please let me know if my understanding is proper in the below case. If > yes, > > then please clarify the doubts and if no, then please correct wherever > > applicable. > > > > Generally, RBridges learn about end stations on access ports and they > > communicate with each other to form adjacency through trunk ports. But > if > > we consider the following diagram =96 > > TRILL tries to be zero/minimum configuration. So by default, RBridge > ports are universal ports that can handle both native and TRILL Data > frames. RBridge access and trunk ports are ports that have been > configured to restrict them. While this is commonly a good idea, it is > not necessary for correct operation. > > In any case, TRILL Hellos are always sent out RBridge ports unless the > port is disabled or configured as point-to-point (in which case > point-to-point Hellos get sent on them). > > > +---------+ > > +---------+ | RB1 | > > | End | +-----+ ------ +---------+ > > | | ------ | Hub | > > | Station | +-----+ ------ +---------+ > > +---------+ | RB2 | > > +---------+ > > > > How do the involved ports in RB1 and RB2 behave in this case? Do both o= f > > them manage to learn about the End Station and one of them becomes the > DRB > > based upon the configured priorities? Also, do they manage to form an > > adjacency between them? If so, then how do they manage so in spite of t= he > > ports being designated as access? > > As above, TRILL Hellos are still sent out the ports of RB1 & RB2 > whether or not the "access port" configuration bit has been turned on > for those ports. So they form an adjacency and one is elected DRB on > the link. By default, the DRB will handle all the native traffic > to/from the End Station. The other RBridge will see all that traffic > but will throw it away because by default it is not the Appointed > Forwarder for any VLAN on the link. However, the DRB can assign some > or all VLANs to the non-DRB RBridge as Appointed Forwarder. > > > Thank you. > > > > Best regards > > Joy > > Hope the above helps. > > Thanks, > Donald > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D > Donald E. Eastlake 3rd +1-508-333-2270 (cell) > 155 Beaver Street, Milford, MA 01757 USA > d3e3e3@gmail.com > --0015174c0ef4debb0604b59a23ed Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Hi Donald,

Thanks a lot for your reply. The understanding is indeed = much better now. Just another query though regarding the AVF part you menti= oned in your comments -

Now, I understand that the default the DRB = will carry all the traffic to and fro the end-user. But when the DRB does d= ecide to distribute the traffic to other rbridges then what propels it to m= ake that decision?

The last sentence of the Section 2.2 from the RFC 6439 states -

"How the DRB decides what other RBridges on the link, if any, to appoi= nt forwarder for which VLANs is beyond the scope of this document."

So, is there any other standard document that I can refer to? Is the be= havior totally dynamic in nature e.g. the DRB takes such decision through t= he usage of some algorithm? Or should it be configurable, so that the Netwo= rk Admin takes the last call?

Thank you.

Best regards
Joy

On Mon, Jan 2, 2012 at 7:51 PM, Donald Eastlake <d3e3e3@gmail.com> wrote:
<= blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px= #ccc solid;padding-left:1ex"> Hi Joybed,

On Mon, Jan 2, 2012 at 5:06 AM, Joydeb Roy <joydeb@gmail.com> wrote:
> Hi Authors,
>
> Please let me know if my understanding is proper in the below case. If= yes,
> then please clarify the doubts and if no, then please correct wherever=
> applicable.
>
> Generally, RBridges learn about end stations on access ports and they<= br> > communicate with each other to form adjacency through trunk ports. =A0= But if
> we consider the following diagram =96

TRILL tries to be zero/minimum configuration. So by default, RBridge<= br> ports are universal ports that can handle both native and TRILL Data
frames. RBridge access and trunk ports are ports that have been
configured to restrict them. While this is commonly a good idea, it is
not necessary for correct operation.

In any case, TRILL Hellos are always sent out RBridge ports unless the
port is disabled or configured as point-to-point (in which case
point-to-point Hellos get sent on them).

> =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=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0 |=A0=A0 RB1=A0=A0 |
> |=A0=A0 End=A0=A0 |=A0=A0=A0=A0=A0=A0=A0 +-----+ ------ +---------+ > |=A0=A0=A0=A0=A0=A0=A0=A0 | ------ | Hub |
> | Station |=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 RB2=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 +---------+
>
> How do the involved ports in RB1 and RB2 behave in this case? Do both = of
> them manage to learn about the End Station and one of them becomes the= DRB
> based upon the configured priorities? Also, do they manage to form an<= br> > adjacency between them? If so, then how do they manage so in spite of = the
> ports being designated as access?

As above, TRILL Hellos are still sent out the ports of RB1 & RB2<= br> whether or not the "access port" configuration bit has been turne= d on
for those ports. So they form an adjacency and one is elected DRB on
the link. By default, the DRB will handle all the native traffic
to/from the End Station. The other RBridge will see all that traffic
but will throw it away because by default it is not the Appointed
Forwarder for any VLAN on the link. However, the DRB can assign some
or all VLANs to the non-DRB RBridge as Appointed Forwarder.

> Thank you.
>
> Best regards
> Joy

Hope the above helps.

Thanks,
Donald
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D
=A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell)
=A0155 Beaver Street,=A0Milford, MA 01757 USA
=A0d3e3e3@gmail.com

--0015174c0ef4debb0604b59a23ed-- --===============0561582144== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0561582144==-- From rbridge-bounces@postel.org Thu Jan 5 11:34:29 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EBD8121F8899 for ; Thu, 5 Jan 2012 11:34:28 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.659 X-Spam-Level: X-Spam-Status: No, score=-105.659 tagged_above=-999 required=5 tests=[AWL=0.940, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ou1w7EPTos1H for ; Thu, 5 Jan 2012 11:34:28 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 48D8621F8897 for ; Thu, 5 Jan 2012 11:34:28 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q05JLL1G010437; Thu, 5 Jan 2012 11:21:22 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q05JKf0K010366 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Thu, 5 Jan 2012 11:20:51 -0800 (PST) Received: by lahj13 with SMTP id j13so469191lah.39 for ; Thu, 05 Jan 2012 11:20:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:from:date:message-id:subject:to:content-type :content-transfer-encoding; bh=HqZvKwjYrW0xnsS9FH/5rilrqV1Um5S9ImNukRj9J08=; b=ZWHf2i7/x+0ZEtEBW8+a5vvp9q83l8tnAqxY27Ne41V5NKG8au1HEavpe9r5/3yGY6 myLEEu5VBdrDaebplWpysgMi49s2i6/jPmzLIY5T4PVC7oY4eDWj4+8bzsDijheDyrz4 1EIZh40QbwHD5Wu40vGEMd2D91GiWAHA9ORCI= Received: by 10.112.23.5 with SMTP id i5mr616617lbf.92.1325791240349; Thu, 05 Jan 2012 11:20:40 -0800 (PST) MIME-Version: 1.0 Received: by 10.152.112.99 with HTTP; Thu, 5 Jan 2012 11:20:19 -0800 (PST) From: Donald Eastlake Date: Thu, 5 Jan 2012 14:20:19 -0500 Message-ID: To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q05JKf0K010366 Subject: [rbridge] Taipei Minutes Posted X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org The Taipei TRILL WG minutes have been posted to the IETF-82 meeting material page. My apologies for getting these out way late. Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Thu Jan 5 18:30:21 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 16B8D11E8096 for ; Thu, 5 Jan 2012 18:30:21 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.432 X-Spam-Level: X-Spam-Status: No, score=-6.432 tagged_above=-999 required=5 tests=[AWL=0.166, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Pb40HQG8Ra47 for ; Thu, 5 Jan 2012 18:30:20 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 3B06311E8095 for ; Thu, 5 Jan 2012 18:30:20 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q062CU8h009683; Thu, 5 Jan 2012 18:12:31 -0800 (PST) Received: from mtv-iport-4.cisco.com (mtv-iport-4.cisco.com [173.36.130.15]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q062BvmD009663 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Thu, 5 Jan 2012 18:12:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=tsenevir@cisco.com; l=10616; q=dns/txt; s=iport; t=1325815926; x=1327025526; h=mime-version:subject:date:message-id:from:to; bh=y1qJsALXRLCbfV4cqhh/aINcSAemsX2aD7JmDw0r5O0=; b=jY1GL2/eTGllv2+lIhIaRtCWt2Js1H2dxQp7QzCXAeJhbZ9Zw6jU7cyF z8K+qs7yXYXx63P5ZIv28kyHKNwEYu1+IF6yOYXAR1OzxHtoo5eoSYZz+ u9P/51dCZC5C4PFFX6VaEnzfFUz/Yr85WD+nzfrEYEhuM+2ewi+VfqbPf U=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ag0FAONXBk+rRDoH/2dsb2JhbABCggVJqjOBBYF0AQQSAQkRA1sBKgYYB1cBBBsBEgeHYJZQgSYBnh6LLmMEiDmfIw X-IronPort-AV: E=Sophos;i="4.71,465,1320624000"; d="scan'208,217";a="23978469" Received: from mtv-core-2.cisco.com ([171.68.58.7]) by mtv-iport-4.cisco.com with ESMTP; 06 Jan 2012 02:11:56 +0000 Received: from xbh-sjc-211.amer.cisco.com (xbh-sjc-211.cisco.com [171.70.151.144]) by mtv-core-2.cisco.com (8.14.3/8.14.3) with ESMTP id q062BuJJ022458 for ; Fri, 6 Jan 2012 02:11:56 GMT Received: from xmb-sjc-214.amer.cisco.com ([171.70.151.145]) by xbh-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 5 Jan 2012 18:11:56 -0800 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Thu, 5 Jan 2012 18:11:55 -0800 Message-ID: <344037D7CFEFE84E97E9CC1F56C5F4A55CD019@xmb-sjc-214.amer.cisco.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Coordinated Multicast Trees to solve RPF issues on active-active edge and more Thread-Index: AczMGJAbYpm80LVTT56uCF44ZOjTTQ== From: "Tissa Senevirathne (tsenevir)" To: X-OriginalArrivalTime: 06 Jan 2012 02:11:56.0414 (UTC) FILETIME=[909929E0:01CCCC18] X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: tsenevir@cisco.com Subject: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============2080860334==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org This is a multi-part message in MIME format. --===============2080860334== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CCCC18.9091669B" This is a multi-part message in MIME format. ------_=_NextPart_001_01CCCC18.9091669B Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Dear All =20 We have published draft-tissa-trill-cmt-00.txt, in this document we present a flexible framework to associate child RBridges to different parent RBRidges for RPF purpose. =20 Active-active forwarding at the TRILL edge is a very important feature. Representation of the active-active sub system with a single virtual RBRidge is a common practice to achieve load balancing and to avoid MAC flip flop. However, use of virtual RBridge lead to RPF failures. In this document we provide a solution to address the RPF failures. Please review and share comments. =20 ID can be found in URL: http://www.ietf.org/id/draft-tissa-trill-cmt-00.txt =20 Summary: =20 Filename: draft-tissa-trill-cmt Revision: 00 Title: Coordinated Multicast Trees (CMT)for TRILL Creation date: 2012-01-05 WG ID: Individual Submission Number of pages: 14 =20 Abstract: TRILL facilitates loop free connectivity to non TRILL legacy networks via choice of an Appointed Forwarder for set of VLANs. Appointed Forwarder provides VLAN level load sharing with active- standby model. Mission critical operations such as High Performance Data Centers require active-active load sharing model. Active-Active load sharing model can be accomplished by representing any given non TRILL legacy network with a single virtual RBridge. Virtual representation of the non-TRILL legacy network with a single RBridge poses serious challenges in multi-destination RPF calculations. This document presents the required enhancements to build Coordinated Multicast Trees (CMT) within the TRILL campus. CMT provides flexibility to RBridges to select desired path of association to a given distribution tree. =20 =20 Thanks Tissa ------_=_NextPart_001_01CCCC18.9091669B Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dear = All

 

We have published draft-tissa-trill-cmt-00.txt, in = this document we present a flexible framework to associate child = RBridges to different parent RBRidges for RPF purpose.

 

Active-active forwarding at the TRILL edge is a very = important feature. Representation of the active-active sub system with a = single virtual RBRidge is a common practice to achieve load balancing = and to avoid MAC flip flop. However, use of virtual RBridge lead to RPF = failures. In this document we provide a solution to address the RPF = failures. Please review and share comments.

 

ID can be = found in URL: http://www.i= etf.org/id/draft-tissa-trill-cmt-00.txt

 

Summary:

 

Filename:   = draft-tissa-trill-cmt

Revision:   00

Title:       &nbs= p;    Coordinated Multicast Trees (CMT)for = TRILL

Creation = date:    2012-01-05

WG = ID:            = Individual Submission

Number of = pages: 14

 

Abstract:

   TRILL facilitates loop free = connectivity to non TRILL legacy

   networks via choice of an Appointed = Forwarder for set of VLANs.

   Appointed Forwarder provides VLAN = level load sharing with active-

   standby model. Mission critical = operations such as High Performance

   Data Centers require active-active = load sharing model. Active-Active

   load sharing model can be accomplished = by representing any given non

   TRILL legacy network with a single = virtual RBridge. Virtual

   representation of the non-TRILL legacy = network with a single RBridge

   poses serious challenges in = multi-destination RPF calculations. This

   document presents the required = enhancements to build Coordinated

   Multicast Trees (CMT) within the TRILL = campus. CMT provides

   = flexibility to RBridges to select desired path of association to = a

   given distribution = tree.

 

 

Thanks

Tissa

------_=_NextPart_001_01CCCC18.9091669B-- --===============2080860334== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============2080860334==-- From rbridge-bounces@postel.org Fri Jan 6 11:19:58 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EE11321F876F for ; Fri, 6 Jan 2012 11:19:58 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.46 X-Spam-Level: X-Spam-Status: No, score=-6.46 tagged_above=-999 required=5 tests=[AWL=0.138, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rVwIZeYAT+nJ for ; Fri, 6 Jan 2012 11:19:58 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 0030821F875B for ; Fri, 6 Jan 2012 11:19:54 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q06J91Nj026296; Fri, 6 Jan 2012 11:09:03 -0800 (PST) Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q06J8c3F026256 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Fri, 6 Jan 2012 11:08:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=tsenevir@cisco.com; l=7709; q=dns/txt; s=iport; t=1325876928; x=1327086528; h=mime-version:subject:date:message-id:from:to; bh=gVaZG865UzRNUXxPKaupVb0f9hvpK5GsjZdTGSZFuzA=; b=R9+RizTSDiTqUQ5HvTA8e/b+y2geehX03F1VTbLr72yW3V95g9wKGupM CT5yFaarHX67YcgauKKwnuaj5xdusD12ISlaXk6MUrDW4BoxzmcfV8tiR FgNNMenLfZ+A2GB+wUSuu9BQmR/YgWfUGw1rajDxLvibXo8BiZstJ8de6 w=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av8EAL1FB0+Q/khR/2dsb2JhbABDgk6pc4EFgXQBBBIBCREDWwEqBhgHVwEEGxqeTIEmAZ4diHeCN2MEiDmfJA X-IronPort-AV: E=Sophos;i="4.71,469,1320624000"; d="scan'208,217";a="125671602" Received: from ams-core-1.cisco.com ([144.254.72.81]) by ams-iport-1.cisco.com with ESMTP; 06 Jan 2012 19:08:36 +0000 Received: from xbh-sjc-231.amer.cisco.com (xbh-sjc-231.cisco.com [128.107.191.100]) by ams-core-1.cisco.com (8.14.3/8.14.3) with ESMTP id q06J8XlP000817 for ; Fri, 6 Jan 2012 19:08:36 GMT Received: from xmb-sjc-214.amer.cisco.com ([171.70.151.145]) by xbh-sjc-231.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.4675); Fri, 6 Jan 2012 11:08:18 -0800 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Fri, 6 Jan 2012 11:08:17 -0800 Message-ID: <344037D7CFEFE84E97E9CC1F56C5F4A55CD199@xmb-sjc-214.amer.cisco.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: draft-tissa-trill-oam-03 Thread-Index: AczMpowbHTUS3pHpQji3jR10F1vDGA== From: "Tissa Senevirathne (tsenevir)" To: X-OriginalArrivalTime: 06 Jan 2012 19:08:18.0059 (UTC) FILETIME=[8C7DBDB0:01CCCCA6] X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: tsenevir@cisco.com Subject: [rbridge] draft-tissa-trill-oam-03 X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1083276732==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org This is a multi-part message in MIME format. --===============1083276732== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CCCCA6.8C78675C" This is a multi-part message in MIME format. ------_=_NextPart_001_01CCCCA6.8C78675C Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Dear All =20 We have published -03 of draft-tissa-trill-oam. -03 contain following changes =20 1. Include payload discovery for ECMP path coverage 2. Traffic Triggered Monitoring - A Framework for use of live traffic for monitoring and troubleshooting in TRILL networks 3. Hop-count method for Ping 4. Other editorial changes/corrections =20 Please share your comments. =20 Thanks Tissa =20 ------_=_NextPart_001_01CCCCA6.8C78675C Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dear = All

 

We have published -03 of draft-tissa-trill-oam. -03 = contain following changes

 

1.       = Include payload discovery for ECMP path = coverage

2.       = Traffic Triggered Monitoring – A Framework = for use of live traffic for monitoring and troubleshooting in TRILL = networks

3.       = Hop-count method for Ping

4.       = Other editorial = changes/corrections

 

Please share = your comments.

 

Thanks

Tissa

 

------_=_NextPart_001_01CCCCA6.8C78675C-- --===============1083276732== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============1083276732==-- From rbridge-bounces@postel.org Fri Jan 6 19:26:21 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C743411E807F for ; Fri, 6 Jan 2012 19:26:21 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.646 X-Spam-Level: X-Spam-Status: No, score=-105.646 tagged_above=-999 required=5 tests=[AWL=0.953, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8zh0Fjf9PefL for ; Fri, 6 Jan 2012 19:26:21 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 08CE911E807A for ; Fri, 6 Jan 2012 19:26:20 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0736g8W004826; Fri, 6 Jan 2012 19:06:44 -0800 (PST) Received: from mail-iy0-f180.google.com (mail-iy0-f180.google.com [209.85.210.180]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0736HKP004798 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Fri, 6 Jan 2012 19:06:26 -0800 (PST) Received: by iazz13 with SMTP id z13so4972195iaz.39 for ; Fri, 06 Jan 2012 19:06:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=I4NvZEzoZEYAQX/9uBXWFVzSuxcEPwv4DkEH4/dRSJ8=; b=LRbRz91o03DV0uQx9TSLZji4hwXejqIq+T0gt0IYDNrA3PXDBz9vzl77kmOPhWGyQ0 7cfjDprWNEGMscNxvpUrfj2YKG/4RjagUVekAA7RPVLBOzz5oiPAmroAlokKy5qqf6z9 OQK7y/1Umh2hobMRmZ5Dlz8666vdyla2HBiA8= Received: by 10.50.183.199 with SMTP id eo7mr9811002igc.5.1325905577358; Fri, 06 Jan 2012 19:06:17 -0800 (PST) MIME-Version: 1.0 Received: by 10.231.38.10 with HTTP; Fri, 6 Jan 2012 19:05:56 -0800 (PST) In-Reply-To: References: From: Donald Eastlake Date: Fri, 6 Jan 2012 22:05:56 -0500 Message-ID: To: Joydeb Roy X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0736HKP004798 Cc: rbridge@postel.org Subject: Re: [rbridge] query regd. TRILL scenario X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Hi Joydeb, On Tue, Jan 3, 2012 at 1:51 AM, Joydeb Roy wrote: > Hi Donald, > > Thanks a lot for your reply. The understanding is indeed much better now. > Just another query though regarding the AVF part you mentioned in your > comments - > > Now, I understand that the default the DRB will carry all the traffic to = and > fro the end-user. But when the DRB does decide to distribute the traffic = to > other rbridges then what propels it to make that decision? > > The last sentence of the Section 2.2 from the RFC 6439 states - > > "How the DRB decides what other RBridges on the link, if any, to appoint > forwarder for which VLANs is beyond the scope of this document." > > So, is there any other standard document that I can refer to? Is the > behavior totally dynamic in nature e.g. the DRB takes such decision throu= gh > the usage of some algorithm? Or should it be configurable, so that the > Network Admin takes the last call? I kind of think of how the DRB decides what forwarders to appoint as an area where implementors can display their individual brilliance :-) Seriously, there are a lot of factors that could be used in such decisions. I don't see how it could be standardized. But you might look at draft-zhang-trill-vlan-assign-02.txt and at Section 10.2 of draft-eastlake-trill-rbridge-clear-correct-02.txt. By the way, in connection with your previous question, you might look at Section 6 of draft-eastlake-trill-rbridge-clear-correct-02.txt. Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com > Thank you. > Best regards > Joy > > On Mon, Jan 2, 2012 at 7:51 PM, Donald Eastlake wrote: >> >> Hi Joybed, >> >> On Mon, Jan 2, 2012 at 5:06 AM, Joydeb Roy wrote: >> > Hi Authors, >> > >> > Please let me know if my understanding is proper in the below case. If >> > yes, >> > then please clarify the doubts and if no, then please correct wherever >> > applicable. >> > >> > Generally, RBridges learn about end stations on access ports and they >> > communicate with each other to form adjacency through trunk ports. =A0= But >> > if >> > we consider the following diagram =96 >> >> TRILL tries to be zero/minimum configuration. So by default, RBridge >> ports are universal ports that can handle both native and TRILL Data >> frames. RBridge access and trunk ports are ports that have been >> configured to restrict them. While this is commonly a good idea, it is >> not necessary for correct operation. >> >> In any case, TRILL Hellos are always sent out RBridge ports unless the >> port is disabled or configured as point-to-point (in which case >> point-to-point Hellos get sent on them). >> >> > =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=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0 |=A0=A0 RB1=A0=A0 | >> > |=A0=A0 End=A0=A0 |=A0=A0=A0=A0=A0=A0=A0 +-----+ ------ +---------+ >> > |=A0=A0=A0=A0=A0=A0=A0=A0 | ------ | Hub | >> > | Station |=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 RB2=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 +---------+ >> > >> > How do the involved ports in RB1 and RB2 behave in this case? Do both = of >> > them manage to learn about the End Station and one of them becomes the >> > DRB >> > based upon the configured priorities? Also, do they manage to form an >> > adjacency between them? If so, then how do they manage so in spite of >> > the >> > ports being designated as access? >> >> As above, TRILL Hellos are still sent out the ports of RB1 & RB2 >> whether or not the "access port" configuration bit has been turned on >> for those ports. So they form an adjacency and one is elected DRB on >> the link. By default, the DRB will handle all the native traffic >> to/from the End Station. The other RBridge will see all that traffic >> but will throw it away because by default it is not the Appointed >> Forwarder for any VLAN on the link. However, the DRB can assign some >> or all VLANs to the non-DRB RBridge as Appointed Forwarder. >> >> > Thank you. >> > >> > Best regards >> > Joy >> >> Hope the above helps. >> >> Thanks, >> Donald >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D >> =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) >> =A0155 Beaver Street,=A0Milford, MA 01757 USA >> =A0d3e3e3@gmail.com > > _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Mon Jan 9 05:30:16 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A278321F8764 for ; Mon, 9 Jan 2012 05:30:16 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -104.751 X-Spam-Level: X-Spam-Status: No, score=-104.751 tagged_above=-999 required=5 tests=[AWL=1.848, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0Ok5xnUpxs2q for ; Mon, 9 Jan 2012 05:30:12 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id D039921F8732 for ; Mon, 9 Jan 2012 05:30:12 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q09DLHlN004547; Mon, 9 Jan 2012 05:21:18 -0800 (PST) Received: from mail.ietf.org (mail.ietf.org [12.22.58.30]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q09DL3IW004507 for ; Mon, 9 Jan 2012 05:21:12 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2E76721F8751 for ; Mon, 9 Jan 2012 05:21:03 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LA+sgyu484ux; Mon, 9 Jan 2012 05:20:58 -0800 (PST) Received: from ietfa.amsl.com (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B83D921F86F4; Mon, 9 Jan 2012 05:20:58 -0800 (PST) MIME-Version: 1.0 From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 3.64p1 Message-ID: <20120109132058.9151.5560.idtracker@ietfa.amsl.com> Date: Mon, 09 Jan 2012 05:20:58 -0800 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: internet-drafts@ietf.org X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q09DL3IW004507 Cc: rbridge@postel.org Subject: [rbridge] I-D Action: draft-ietf-trill-rbridge-extension-02.txt X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Transparent Interconnection of Lots of Links Working Group of the IETF. Title : TRILL: Header Extension Author(s) : Donald Eastlake Anoop Ghanwani Vishwas Manral Yizhou Li Caitlin Bestler Filename : draft-ietf-trill-rbridge-extension-02.txt Pages : 16 Date : 2012-01-09 The IETF TRILL (Transparent Interconnection of Lots of Links) base protocol specifies minimal hooks to safely support TRILL Header extensions. This document specifies an initial extension providing additional flag bits and specifies two of those bits. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-trill-rbridge-extension-02.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ This Internet-Draft can be retrieved at: ftp://ftp.ietf.org/internet-drafts/draft-ietf-trill-rbridge-extension-02.txt _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Mon Jan 9 20:30:16 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 589171F0C4C for ; Mon, 9 Jan 2012 20:30:16 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.709 X-Spam-Level: X-Spam-Status: No, score=-105.709 tagged_above=-999 required=5 tests=[AWL=0.890, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XcTZ5+z8u+Y8 for ; Mon, 9 Jan 2012 20:30:15 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id A7CBB1F0C3D for ; Mon, 9 Jan 2012 20:30:15 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0A4JgoH018525; Mon, 9 Jan 2012 20:19:42 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0A4J67S018448 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Mon, 9 Jan 2012 20:19:16 -0800 (PST) Received: by lahj13 with SMTP id j13so3073872lah.39 for ; Mon, 09 Jan 2012 20:19:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type:content-transfer-encoding; bh=iAto8U0t+Ys5CiCXIrSrg8oSzxz9lwbwBti2h5j5gWQ=; b=Cgel3b9A+lNsMuNIQeSpQemAMBevgnOgn5qakSjCteFNAQhR/fsxTYAHXCO66cMP+U qFPPuK6V0UIQsZUSrCbBmKuPlACFB6AYmGrCE6khZXD0608mq/OvRN6xkLRLv2XkiMod sqS79Psuy4DFDhcngIdm/yQXxTPsGrsxi5a+g= Received: by 10.152.114.68 with SMTP id je4mr8618328lab.35.1326169145250; Mon, 09 Jan 2012 20:19:05 -0800 (PST) MIME-Version: 1.0 Received: by 10.152.112.99 with HTTP; Mon, 9 Jan 2012 20:18:44 -0800 (PST) In-Reply-To: <20120109132058.9151.5560.idtracker@ietfa.amsl.com> References: <20120109132058.9151.5560.idtracker@ietfa.amsl.com> From: Donald Eastlake Date: Mon, 9 Jan 2012 23:18:44 -0500 Message-ID: To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0A4J67S018448 Subject: Re: [rbridge] I-D Action: draft-ietf-trill-rbridge-extension-02.txt X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org This version incorporates change discussed on the WG mailing list. Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com On Mon, Jan 9, 2012 at 8:20 AM, wrote: > > A New Internet-Draft is available from the on-line Internet-Drafts direct= ories. This draft is a work item of the Transparent Interconnection of Lots= of Links Working Group of the IETF. > > =A0 =A0 =A0 =A0Title =A0 =A0 =A0 =A0 =A0 : TRILL: Header Extension > =A0 =A0 =A0 =A0Author(s) =A0 =A0 =A0 : Donald Eastlake > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Anoop Ghanwani > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Vishwas Manral > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Yizhou Li > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Caitlin Bestler > =A0 =A0 =A0 =A0Filename =A0 =A0 =A0 =A0: draft-ietf-trill-rbridge-extensi= on-02.txt > =A0 =A0 =A0 =A0Pages =A0 =A0 =A0 =A0 =A0 : 16 > =A0 =A0 =A0 =A0Date =A0 =A0 =A0 =A0 =A0 =A0: 2012-01-09 > > =A0 The IETF TRILL (Transparent Interconnection of Lots of Links) base > =A0 protocol specifies minimal hooks to safely support TRILL Header > =A0 extensions. This document specifies an initial extension providing > =A0 additional flag bits and specifies two of those bits. > > > > A URL for this Internet-Draft is: > http://www.ietf.org/internet-drafts/draft-ietf-trill-rbridge-extension-02= .txt > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > This Internet-Draft can be retrieved at: > ftp://ftp.ietf.org/internet-drafts/draft-ietf-trill-rbridge-extension-02.= txt _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Tue Jan 10 05:24:47 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2DFB521F84F1 for ; Tue, 10 Jan 2012 05:24:47 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.599 X-Spam-Level: X-Spam-Status: No, score=-106.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vyCE-NhPRtRU for ; Tue, 10 Jan 2012 05:24:46 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 98F3821F84A3 for ; Tue, 10 Jan 2012 05:24:46 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0ADBNO2028372; Tue, 10 Jan 2012 05:11:24 -0800 (PST) Received: from a.mail.sonic.net (a.mail.sonic.net [64.142.16.245]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0ADAofS028305 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Tue, 10 Jan 2012 05:10:59 -0800 (PST) Received: from dhcp-gpk02-vlan250-64-103-68-50.cisco.com (dhcp-gpk02-vlan250-64-103-68-50.cisco.com [64.103.68.50]) (authenticated bits=0) by a.mail.sonic.net (8.13.8.Beta0-Sonic/8.13.7) with ESMTP id q0ADAjHt027825 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 10 Jan 2012 05:10:48 -0800 Message-ID: <4F0C38D4.7050801@acm.org> Date: Tue, 10 Jan 2012 05:10:44 -0800 From: Erik Nordmark User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:8.0) Gecko/20111105 Thunderbird/8.0 MIME-Version: 1.0 To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: nordmark@acm.org Subject: [rbridge] Should we make draft-eastlake-trill-clear-correct-03.txt a WG document? X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Donald presented this document in Taipei, and the authors have revised it since then. I think the document contains useful clarifications. Should we adopt it as a WG document? Please send any comments to the list before January 25th. Erik _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Tue Jan 10 20:34:26 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 84C3E11E8083 for ; Tue, 10 Jan 2012 20:34:26 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.598 X-Spam-Level: X-Spam-Status: No, score=-6.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id yr3Vol++EhOQ for ; Tue, 10 Jan 2012 20:34:25 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id E00E011E8080 for ; Tue, 10 Jan 2012 20:34:25 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0B4LHe4014047; Tue, 10 Jan 2012 20:21:18 -0800 (PST) Received: from mail-bk0-f52.google.com (mail-bk0-f52.google.com [209.85.214.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0B4Kd6h013930 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Tue, 10 Jan 2012 20:20:49 -0800 (PST) Received: by bkbzu5 with SMTP id zu5so371093bkb.39 for ; Tue, 10 Jan 2012 20:20:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=UwiS1nfMipmHBP3JwujiTeL83H3t5p3M0u3PS6moP34=; b=U/YLU945wV3jvXb5JDnZ84xTi+peihGTWGGeCzV/6jPp90Rx+O8BUwpErcAJcDQWZt cQI6B8VKGvgrtgpja6G786AMW5Wldp0Gff9S6390BkT0ncmsKlHAQRsXBfk0rruc0JIg g985vYs/9XrJSfGQ3VHUVsBDpQ4pQFJuWaAG8= MIME-Version: 1.0 Received: by 10.204.9.216 with SMTP id m24mr9740575bkm.84.1326255638701; Tue, 10 Jan 2012 20:20:38 -0800 (PST) Received: by 10.204.153.21 with HTTP; Tue, 10 Jan 2012 20:20:38 -0800 (PST) Date: Wed, 11 Jan 2012 09:50:38 +0530 Message-ID: From: gururam m To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: mgururam@gmail.com Subject: [rbridge] TRILL Multicast Query X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0481652940==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============0481652940== Content-Type: multipart/alternative; boundary=0015175d021a39e51304b638f4c2 --0015175d021a39e51304b638f4c2 Content-Type: text/plain; charset=ISO-8859-1 What are the RFCs/drafts that define the TRILL multicast support Regards Ram --0015175d021a39e51304b638f4c2 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable =A0=A0=A0
What are the RFCs/drafts that define t= he TRILL multicast=20 support

Regards
Ram
--0015175d021a39e51304b638f4c2-- --===============0481652940== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0481652940==-- From rbridge-bounces@postel.org Tue Jan 10 21:04:22 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 941C321F849B for ; Tue, 10 Jan 2012 21:04:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.765 X-Spam-Level: X-Spam-Status: No, score=-105.765 tagged_above=-999 required=5 tests=[AWL=0.834, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0af0MTw6eBot for ; Tue, 10 Jan 2012 21:04:22 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 0B6591F0C40 for ; Tue, 10 Jan 2012 21:04:21 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0B4plvG018261; Tue, 10 Jan 2012 20:51:47 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0B4pLig018237 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Tue, 10 Jan 2012 20:51:31 -0800 (PST) Received: by lahg1 with SMTP id g1so119442lah.39 for ; Tue, 10 Jan 2012 20:51:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=WUAIHY/E7KaC4+pIVIloyCDb/XRm7TNkiQeDVh4is3o=; b=eeczY5vb5K8ta2NC+pJspAa5PjdpmyxT/iYUYBw/VVfkT+d1KwDek/LcCrg9zKkT+j zfXrVAuv+bLuC+GsDw84hoT23dFIQcTnBDhRAUX9HcPlQ3zsZF/uvKBhkXPFymvYs+A7 N3hiZwZf8gPEXzUk2LpfHpptgdzQmCbxECjoQ= Received: by 10.152.133.70 with SMTP id pa6mr10035735lab.0.1326257479271; Tue, 10 Jan 2012 20:51:19 -0800 (PST) MIME-Version: 1.0 Received: by 10.152.112.99 with HTTP; Tue, 10 Jan 2012 20:50:58 -0800 (PST) In-Reply-To: References: From: Donald Eastlake Date: Tue, 10 Jan 2012 23:50:58 -0500 Message-ID: To: gururam m X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0B4pLig018237 Cc: rbridge@postel.org Subject: Re: [rbridge] TRILL Multicast Query X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Start with the base protocol specification, RFC 6325. Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com On Tue, Jan 10, 2012 at 11:20 PM, gururam m wrote: > > What are the RFCs/drafts that define the TRILL multicast support > > Regards > Ram > > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge > _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Thu Jan 12 20:16:22 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A205621F85F9 for ; Thu, 12 Jan 2012 20:16:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -99.639 X-Spam-Level: X-Spam-Status: No, score=-99.639 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_73=0.6, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, RCVD_DOUBLE_IP_LOOSE=0.76, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100, WEIRD_QUOTING=1.396] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4aMOfw-rEkF5 for ; Thu, 12 Jan 2012 20:16:21 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 88DF521F85FC for ; Thu, 12 Jan 2012 20:16:21 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0D3xqj1018119; Thu, 12 Jan 2012 19:59:53 -0800 (PST) Received: from mx5.zte.com.cn (mx5.zte.com.cn [63.217.80.70]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0D3x1dg018051; Thu, 12 Jan 2012 19:59:11 -0800 (PST) Received: from [10.30.17.100] by mx5.zte.com.cn with surfront esmtp id 538292371461274; Fri, 13 Jan 2012 11:52:15 +0800 (CST) Received: from [10.30.3.21] by [192.168.168.16] with StormMail ESMTP id 50069.2865015372; Fri, 13 Jan 2012 11:58:33 +0800 (CST) Received: from notes_smtp.zte.com.cn ([10.30.1.239]) by mse02.zte.com.cn with ESMTP id q0D3wjxP088827; Fri, 13 Jan 2012 11:58:46 +0800 (GMT-8) (envelope-from zhai.hongjun@zte.com.cn) In-Reply-To: <344037D7CFEFE84E97E9CC1F56C5F4A55CD019@xmb-sjc-214.amer.cisco.com> To: "Tissa Senevirathne (tsenevir)" MIME-Version: 1.0 X-KeepSent: 31ED4F06:D9817510-48257984:0005852D; type=4; name=$KeepSent X-Mailer: Lotus Notes Release 6.5.6 March 06, 2007 Message-ID: From: zhai.hongjun@zte.com.cn Date: Fri, 13 Jan 2012 11:58:44 +0800 X-MIMETrack: Serialize by Router on notes_smtp/zte_ltd(Release 8.5.1FP4|July 25, 2010) at 2012-01-13 11:58:47, Serialize complete at 2012-01-13 11:58:47 X-MAIL: mse02.zte.com.cn q0D3wjxP088827 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: zhai.hongjun@zte.com.cn Cc: rbridge@postel.org, rbridge-bounces@postel.org Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." 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_______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============1197621557==-- From rbridge-bounces@postel.org Thu Jan 12 20:42:53 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 613B121F8513 for ; Thu, 12 Jan 2012 20:42:53 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.271 X-Spam-Level: X-Spam-Status: No, score=-4.271 tagged_above=-999 required=5 tests=[AWL=-2.120, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_73=0.6, MIME_CHARSET_FARAWAY=2.45, MIME_HTML_MOSTLY=0.001, RCVD_IN_DNSWL_MED=-4, WEIRD_QUOTING=1.396] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vlkeNDtpPQJk for ; Thu, 12 Jan 2012 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<344037D7CFEFE84E97E9CC1F56C5F4A56556C6@xmb-sjc-214.amer.cisco.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more Thread-Index: AczRp6xWjS6yvxv4R5m2YlLCLzSOdAAAS5Dw References: <344037D7CFEFE84E97E9CC1F56C5F4A55CD019@xmb-sjc-214.amer.cisco.com> From: "Tissa Senevirathne (tsenevir)" To: X-OriginalArrivalTime: 13 Jan 2012 04:21:27.0931 (UTC) FILETIME=[D1ACCCB0:01CCD1AA] X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: tsenevir@cisco.com Cc: rbridge@postel.org, rbridge-bounces@postel.org Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1541850640==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org This is a multi-part message in MIME format. --===============1541850640== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CCD1AA.D15452CA" This is a multi-part message in MIME format. ------_=_NextPart_001_01CCD1AA.D15452CA Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: quoted-printable Hi Hongjun =20 I am not quite clear with the way you are proposing to use assigned = nicknames in the pseudonode LSP. =20 Can you please us the diagram below and explain how your proposal will = be used.=20 =20 CE means in the following diagram is an 802.1D device that is attached = to RB1 and RB2 through Pt-Pt links and treated as a port channel from CE = stand point. =20 RBx | Trill Campus | | +----------+ +------------+ | RB1 | | RB2 | +----------+ + ------------+ \ / \ / \ / ---------- ----------- > | | < Port channel (LAG) | | +--------------------+ | CE | +---------------------+ =20 =20 From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn]=20 Sent: Thursday, January 12, 2012 7:59 PM To: Tissa Senevirathne (tsenevir) Cc: rbridge@postel.org; rbridge-bounces@postel.org Subject: RE: [rbridge] Coordinated Multicast Trees to solve RPF issues = on active-active edge and more =20 Hi Tissa,=20 I have read your draft-tissa-trill-cmt-00.txt with great interests. In = this draft, a new TLV, Affinity Sub-TLV, is introduced to give a member = RBdige of a virtual RBridge group much flexibity in describing the = virtual RBridge nickname and specifying the path of association to = specific distribution tree(S). However, this new TLV causes some = backward compatibilty problems between pre Affinity sub-TLV RBridges and = new RBridges. Even if there is only one pre Affinity sub-TLV RBridge in = TRILL network,the RPF check for virtual Rbridge will fail on this = RBridge. Is the Affinity Sub-TLV necessary for a member RBridge to announce the = virtual Rbridge nickname and the specific distribution trees? Maybe it = is not.=20 In a given vritual group, each member Rbridge can advertise a specific = pseudonode-LSP to annouce the virtual RBridge nickname and the trees = assigned to it.The nickname and the assigned trees are contained in the = given Nickname Sub-TLV and Trees Sub-TLV in RFC6326. This pseudonode-LSP = represents a special virtual link, on which there is only one RBridge, = i.e., the RBridge advertising this LSP. Only if different member = Rbridge is assigned different tree(s), RPF check information for the = virtual Rbrigde in different trees can be correctly calculated on all = the Rbridges in TRILL network, then the member RBridge can safely use = the virtual Rbridge nickname to do the necessary TRILL-encapsultion on = received native frames.=20 Therefore, backward compatibilty problems, caused by Affinity sub-TLV, = is removed, while the similar flexibilty of Affinity sub-TLV remains.=20 Thanks, Zhai Hongjun """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 Zhai Hongjun Tel: +86-25-52877345 Email: zhai.hongjun@zte.com.cn """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" "Tissa Senevirathne (tsenevir)" =20 =B7=A2=BC=FE=C8=CB: rbridge-bounces@postel.org=20 2012-01-06 10:11=20 =CA=D5=BC=FE=C8=CB =20 =B3=AD=CB=CD =09 =D6=F7=CC=E2 [rbridge] Coordinated Multicast Trees to solve RPF issues on = active-active edge and more =20 =09 Dear All=20 =20 We have published draft-tissa-trill-cmt-00.txt, in this document we = present a flexible framework to associate child RBridges to different = parent RBRidges for RPF purpose.=20 =20 Active-active forwarding at the TRILL edge is a very important feature. = Representation of the active-active sub system with a single virtual = RBRidge is a common practice to achieve load balancing and to avoid MAC = flip flop. However, use of virtual RBridge lead to RPF failures. In this = document we provide a solution to address the RPF failures. Please = review and share comments.=20 =20 ID can be found in URL: = http://www.ietf.org/id/draft-tissa-trill-cmt-00.txt = =20 =20 Summary:=20 =20 Filename: draft-tissa-trill-cmt=20 Revision: 00=20 Title: Coordinated Multicast Trees (CMT)for TRILL=20 Creation date: 2012-01-05=20 WG ID: Individual Submission=20 Number of pages: 14=20 =20 Abstract:=20 TRILL facilitates loop free connectivity to non TRILL legacy=20 networks via choice of an Appointed Forwarder for set of VLANs.=20 Appointed Forwarder provides VLAN level load sharing with active-=20 standby model. Mission critical operations such as High Performance=20 Data Centers require active-active load sharing model. Active-Active=20 load sharing model can be accomplished by representing any given non=20 TRILL legacy network with a single virtual RBridge. Virtual=20 representation of the non-TRILL legacy network with a single RBridge=20 poses serious challenges in multi-destination RPF calculations. This=20 document presents the required enhancements to build Coordinated=20 Multicast Trees (CMT) within the TRILL campus. CMT provides=20 flexibility to RBridges to select desired path of association to a=20 given distribution tree.=20 =20 =20 Thanks=20 Tissa_______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge =20 -------------------------------------------------------- ZTE Information Security Notice: The information contained in this mail = is solely property of the sender's organization. This mail communication = is confidential. Recipients named above are obligated to maintain = secrecy and are not permitted to disclose the contents of this = communication to others. This email and any files transmitted with it are confidential and = intended solely for the use of the individual or entity to whom they are = addressed. If you have received this email in error please notify the = originator of the message. Any views expressed in this message are those = of the individual sender. This message has been scanned for viruses and Spam by ZTE Anti-Spam = system. ------_=_NextPart_001_01CCD1AA.D15452CA Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: quoted-printable

Hi Hongjun

 

I am not quite clear with the way you are proposing to use assigned = nicknames in the pseudonode LSP.

 

Can you please us the diagram below and explain how your proposal = will be used.

 

CE means in the following diagram is an 802.1D device that is = attached to RB1 and RB2 through Pt-Pt links and treated as a port = channel from CE stand point.

 

           &nbs= p;            = ;           = RBx

           &nbs= p;            = ;            = |

           &nbs= p;            = ;   Trill Campus

     =           |  =             &= nbsp;           &n= bsp;           &nb= sp;       |

    = +----------+          &= nbsp;           &n= bsp;            = +------------+

    |  RB1     = |            =             &= nbsp;         |  = RB2       |

    = +----------+          &= nbsp;           &n= bsp;           + = ------------+

          = \            =             &= nbsp;           &n= bsp;           &nb= sp; /

      =      \       =             &= nbsp;           &n= bsp;           &nb= sp;   /

            = \            =             &= nbsp;           &n= bsp;       /

           &nbs= p;  = ----------          &nb= sp;    -----------

           &nbs= p;          >  =  |           =   |  <  Port channel (LAG)

           &nbs= p;            = ;   = |            =  |

           &nbs= p;        = +--------------------+

           &nbs= p;       |    = CE            = ;        |

           &nbs= p;       = +---------------------+

 

 

From:= = zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn] =
Sent: Thursday, January 12, 2012 7:59 PM
To: Tissa = Senevirathne (tsenevir)
Cc: rbridge@postel.org; = rbridge-bounces@postel.org
Subject: RE: [rbridge] Coordinated = Multicast Trees to solve RPF issues on active-active edge and = more

 


Hi = Tissa,

I have = read your draft-tissa-trill-cmt-00.txt with great interests.  In = this draft, a new TLV, Affinity Sub-TLV, is introduced to give a member = RBdige of a virtual RBridge group much flexibity in describing the = virtual RBridge nickname and  specifying the path of association to = specific distribution tree(S).  However, this new TLV causes some = backward compatibilty problems between pre Affinity sub-TLV RBridges and = new RBridges. Even if there is only one pre Affinity sub-TLV RBridge in = TRILL network,the RPF check for virtual Rbridge will fail on this = RBridge.

Is the = Affinity Sub-TLV necessary for a member RBridge to announce the virtual = Rbridge nickname and  the specific distribution trees? Maybe it is = not.

In a given = vritual group, each  member Rbridge can advertise a specific = pseudonode-LSP to annouce the virtual RBridge nickname and the trees = assigned to it.The nickname and the assigned trees are contained in =  the given Nickname Sub-TLV and Trees Sub-TLV in RFC6326. This = pseudonode-LSP represents a special virtual link, on which there is only = one RBridge, i.e.,  the RBridge advertising this LSP.  Only if = different member Rbridge is assigned different tree(s), RPF check = information for the virtual Rbrigde in different trees can be correctly = calculated on all the Rbridges in TRILL network, then the member RBridge = can safely use the virtual Rbridge nickname to do the necessary = TRILL-encapsultion on  received native frames.

Therefo= re, backward compatibilty problems, caused by Affinity sub-TLV, is = removed, while the similar flexibilty of Affinity sub-TLV = remains.

=
Thanks,Zhai = Hongjun
""""""""""&q= uot;"""""""""""&qu= ot;"""""""""""&quo= t;""""""""""""= ;""""""""""""= """""""""""
Pro= tocol Development Dept.VI, Central R&D Institute, ZTE = Corporation
No. 68, Zijinghua Road, Yuhuatai District, Nanjing, = P.R.China, 210012

Zhai Hongjun

Tel: = +86-25-52877345
Email: = zhai.hongjun@zte.com.cn
"""""""&quo= t;""""""""""""= ;""""""""""""= """"""""""""&= quot;"""""""""""&q= uot;"""""""""""&qu= ot;""



"Tissa = Senevirathne (tsenevir)" <tsenevir@cisco.com> =
=B7=A2=BC=FE=C8=CB: =  rbridge-bounces@postel.org

2012-01-06 = 10:11

<rbridge@po= stel.org>

=CA=D5=BC=FE=C8=CB

=B3=AD=CB=CD

=D6=F7=CC=E2

[rbridge] = Coordinated Multicast Trees to solve RPF issues on       =  active-active edge and = more

 




Dear = All
 
We have = published draft-tissa-trill-cmt-00.txt, in this document we present a = flexible framework to associate child RBridges to different parent = RBRidges for RPF purpose.
 
Active-acti= ve forwarding at the TRILL edge is a very important feature. = Representation of the active-active sub system with a single virtual = RBRidge is a common practice to achieve load balancing and to avoid MAC = flip flop. However, use of virtual RBridge lead to RPF failures. In this = document we provide a solution to address the RPF failures. Please = review and share comments.
 
ID can be = found in URL: http://www.= ietf.org/id/draft-tissa-trill-cmt-00.txt
 
Summary:
 
Filename: =   draft-tissa-trill-cmt
Revision:   = 00
Title:     =        Coordinated Multicast Trees (CMT)for = TRILL
Creation date:   =  2012-01-05
WG ID:     =        Individual Submission
Number of pages: = 14
 
Abstract: =
  =  TRILL facilitates loop free connectivity to non TRILL = legacy
   networks = via choice of an Appointed Forwarder for set of VLANs.
   Appointed = Forwarder provides VLAN level load sharing with active-
   standby = model. Mission critical operations such as High Performance =
  =  Data Centers require active-active load sharing model. = Active-Active
   load = sharing model can be accomplished by representing any given non =
  =  TRILL legacy network with a single virtual RBridge. Virtual =
  =  representation of the non-TRILL legacy network with a single = RBridge
   poses = serious challenges in multi-destination RPF calculations. This =
  =  document presents the required enhancements to build = Coordinated
   Multicast = Trees (CMT) within the TRILL campus. CMT provides
   flexibility = to RBridges to select desired path of association to a
   given = distribution tree.
 
 
Thanks
Tissa______________________________________________= _
rbridge mailing = list
rbridge@postel.org
http://mailman.postel.org= /mailman/listinfo/rbridge

&nb=
sp;
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------_=_NextPart_001_01CCD1AA.D15452CA-- --===============1541850640== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============1541850640==-- From rbridge-bounces@postel.org Thu Jan 12 21:34:15 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8E5871F0C42 for ; Thu, 12 Jan 2012 21:34:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -99.638 X-Spam-Level: X-Spam-Status: No, score=-99.638 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_73=0.6, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, MIME_HTML_MOSTLY=0.001, RCVD_DOUBLE_IP_LOOSE=0.76, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100, WEIRD_QUOTING=1.396] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QgmhMGHq4Ooc for ; Thu, 12 Jan 2012 21:34:13 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id E06481F0C38 for ; Thu, 12 Jan 2012 21:34:12 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0D566v8027632; Thu, 12 Jan 2012 21:06:09 -0800 (PST) Received: from mx7.zte.com.cn (mx7.zte.com.cn [202.103.147.169]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0D55ael027599; Thu, 12 Jan 2012 21:05:46 -0800 (PST) Received: from [10.30.3.21] by [192.168.168.15] with StormMail ESMTP id 4315.2865015372; Fri, 13 Jan 2012 13:05:34 +0800 (CST) Received: from notes_smtp.zte.com.cn ([10.30.1.239]) by mse02.zte.com.cn with ESMTP id q0D55UC1039762; Fri, 13 Jan 2012 13:05:30 +0800 (GMT-8) (envelope-from zhai.hongjun@zte.com.cn) In-Reply-To: <344037D7CFEFE84E97E9CC1F56C5F4A56556C6@xmb-sjc-214.amer.cisco.com> To: "Tissa Senevirathne (tsenevir)" MIME-Version: 1.0 X-KeepSent: 5B6393CA:6DBC99E2-48257984:00183801; type=4; name=$KeepSent X-Mailer: Lotus Notes Release 6.5.6 March 06, 2007 Message-ID: From: zhai.hongjun@zte.com.cn Date: Fri, 13 Jan 2012 13:05:29 +0800 X-MIMETrack: Serialize by Router on notes_smtp/zte_ltd(Release 8.5.1FP4|July 25, 2010) at 2012-01-13 13:05:32, Serialize complete at 2012-01-13 13:05:32 X-MAIL: mse02.zte.com.cn q0D55UC1039762 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: zhai.hongjun@zte.com.cn Cc: rbridge@postel.org, rbridge-bounces@postel.org Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." 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--=_alternative 001C1D9348257984_=-- --===============1949973890== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============1949973890==-- From rbridge-bounces@postel.org Fri Jan 13 02:13:41 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B7E4221F853F for ; Fri, 13 Jan 2012 02:13:41 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.598 X-Spam-Level: X-Spam-Status: No, score=-6.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id j-Vj9KSz95DC for ; Fri, 13 Jan 2012 02:13:41 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 2613D21F847E for ; Fri, 13 Jan 2012 02:13:41 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0D9sfu6008157; Fri, 13 Jan 2012 01:54:42 -0800 (PST) Received: from mail-bk0-f52.google.com (mail-bk0-f52.google.com [209.85.214.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0D9sBRi008100 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Fri, 13 Jan 2012 01:54:21 -0800 (PST) Received: by bkbzu5 with SMTP id zu5so3481984bkb.39 for ; Fri, 13 Jan 2012 01:54:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=hlhYfvFCI57sLF74l5hmzhPu2l1ih4dzn5hSTs83lfg=; b=a37bgRoPn4XHmEdrSjDpmYcGTivo/OdVxlOmD8nbtjyuKyZNId/l7oVzj00LpqBnKK kN+gsqfn/FDqlpoDyIbH0HxNXDuR/z4IZ64fYYB439Ms4+JTivvm6/2ZvBqon/KxqDym Y/ZuDKkMB9/l1gR08ueTQSV7jmVlGN5+TGkX8= MIME-Version: 1.0 Received: by 10.205.131.16 with SMTP id ho16mr442669bkc.105.1326448450908; Fri, 13 Jan 2012 01:54:10 -0800 (PST) Received: by 10.205.119.209 with HTTP; Fri, 13 Jan 2012 01:54:10 -0800 (PST) Date: Fri, 13 Jan 2012 15:24:10 +0530 Message-ID: From: gururam m To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: mgururam@gmail.com Subject: [rbridge] TRILL behavior over 802.1AX interface (link aggregation) X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0342930611==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============0342930611== Content-Type: multipart/alternative; boundary=000e0ce0d342bab1e104b665d8b6 --000e0ce0d342bab1e104b665d8b6 Content-Type: text/plain; charset=ISO-8859-1 Hi, Can anyone point me to TRILL RFC/draft that describes TRILL support over multiple links/link aggregation (802.1AX) that provides details related to 1. Hello generation/reception 2. Adjacency Formation 3. DRB Election 4. LSP generation Regards Ram --000e0ce0d342bab1e104b665d8b6 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi,
=A0=A0=A0=A0 Can anyone point me to TRILL RFC/draft that describes T= RILL support over multiple links/link aggregation (802.1AX) that provides d= etails related to

=A01. Hello generation/reception
=A02. Adjacenc= y Formation
=A03. DRB Election
=A04. LSP generation

Regards
Ram
--000e0ce0d342bab1e104b665d8b6-- --===============0342930611== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0342930611==-- From rbridge-bounces@postel.org Fri Jan 13 06:13:55 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7C78021F859F for ; Fri, 13 Jan 2012 06:13:55 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.398 X-Spam-Level: X-Spam-Status: No, score=-0.398 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_73=0.6, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, MIME_HTML_MOSTLY=0.001, RCVD_IN_DNSWL_MED=-4, WEIRD_QUOTING=1.396] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LDeLMIOxKzXD for ; Fri, 13 Jan 2012 06:13:51 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 2B4BA21F859E for ; Fri, 13 Jan 2012 06:13:51 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0DDkmoX011467; Fri, 13 Jan 2012 05:46:50 -0800 (PST) Received: from mx.force10networks.com (maa.force10networks.com [59.163.202.254]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0DDk9U3011409; Fri, 13 Jan 2012 05:46:18 -0800 (PST) Received: from EXCH-CLUSTER-11.force10networks.com ([10.16.127.20]) by exch7-maa-fe.force10networks.com ([10.16.126.10]) with mapi; Fri, 13 Jan 2012 19:15:59 +0530 From: Janardhanan Pathangi Narasimhan To: "zhai.hongjun@zte.com.cn" , "Tissa Senevirathne (tsenevir)" Date: Fri, 13 Jan 2012 19:18:56 +0530 Thread-Topic: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more Thread-Index: AczRtIbeYM9Kw496THe4JIYPmC4wHQARO0Mw Message-ID: References: <344037D7CFEFE84E97E9CC1F56C5F4A56556C6@xmb-sjc-214.amer.cisco.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: jana@force10networks.com Cc: "rbridge@postel.org" , "rbridge-bounces@postel.org" Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." 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charset="gb2312" Content-Transfer-Encoding: quoted-printable

Hi Hongjun,=

 

= I think your proposal is that form a tree rooted at RB1 and another tree ro= oted at RB2. The tree rooted at RB1 would have RBV-RB1 link,  and simi= larly the tree rooted at RB2 would have RB2-RBV link. Hence you are forcing= the affinity of RB1 or RB2 to RBV by placing the root on the RBridges them= selves. Is that correct?

 

Yes, this mechanism would work, but would not scal= e up. For e.g. in the network, if we have 10 such pairs of RB, i.e. RB1-RB2= providing RBV1, RB3-RB4 providing RBV2, and so on, then to ensure that RB1= -RBV1, RB2-RBV1, RB3-RBV2, RB4-RBV2 and so on are present, we will have to = minimum build 20 trees (10 pairs of RB). This will not scale, while with af= finity TLV irrespective of number of such RB pairs which are providing such= services we would need only two trees.

 

Thanks

Jana

 =

 

From: rbridge-bounces@postel.org [mailto:rbridge-bounce= s@postel.org] On Behalf Of zhai.hongjun@zte.com.cn
Sent: F= riday, January 13, 2012 10:35 AM
To: Tissa Senevirathne (tsenevir= )
Cc: rbridge@postel.org; rbridge-bounces@postel.org
Subjec= t: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on act= ive-active edge and more

 


= Hi Tissa=A3=AC

In the diagram you given, assume 4 dist= ribution trees are acturally calculated in TRILL campus, i.e., T1 through T= 4.  T1 and T2 are assigned to RB1, T3 and T4 are assigned to RB2.

Even if RB1 can not see  RB2 by hellos, (I think tha= t) RB1 can generate a pseudonode LSP, Pseu-LSP-RB1,  to announce the v= irtual RBridge (RBv) nickname and the trees assigned to it, i.e, T1 and T2.=  In this pseudonode LSP,  RB1 is the only one neighbor (or RB1 a= nd the virtual RBridge RBv are the only two neigbors)  of this pseudon= ode.  After receiving this pseudonode LSP,  RBx can  know th= e path to  pseudonode RBv through RB1 on T1 or T2, shown in the follow= ing diagram.

           = ;                     &nb= sp; RBx
              =                      = ;  |
             = ;              Trill Campus
<= span style=3D'font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F= 497D'>               |    = ;                     &nb= sp;                    |<= /span>
    +----------+         &n= bsp;                     =     +------------+
    |  RB1 &n= bsp;   |                  = ;                |  RB2  =     |
    +----------+    =                     &nbs= p;        + ------------+
  &nbs= p;       \               =                      = ;              
&nbs= p;         /  \          =                     &nbs= p;            
   = ;     /RBv \               &nb= sp;              
&nbs= p;      ---------
      &nb= sp;         scheme of T1 or T2

RB= 1 uses Nickname Sub-TLV and Trees Sub-TLV (instead of the Affin= ity sub-TLV) in Pseu-LSP-RB1, to contains the RBv's nickname an= d the assigned trees T1 and T2.

RB2 also annouce simila= r informtion in its pseudonode LSP, then RBx can know the path to RBv throu= gh RB2 on T3 and T4.

        &nbs= p;                     &n= bsp;   RBx
           =                     &nbs= p;    |
          &nbs= p;                Trill Campus
               | &nbs= p;                     &n= bsp;                     =  |
    +----------+       &= nbsp;                    =       +------------+
    | &nbs= p;RB1     |               &nbs= p;                  |  RB= 2       |
    +----------+  = ;                     &nb= sp;          + ------------+
&nb= sp;         \            =                     &nbs= p;                /
           \         &= nbsp;                    =                 /
            \         &= nbsp;                    =              /
&nbs= p;             ----------      = ;         -----------
    &= nbsp;                 >   |=             |  <  Port channel = (LAG)
              &n= bsp;            |        =     |
           = ;         +--------------------+
&nbs= p;                  |   &= nbsp;CE                   &nbs= p;|
              &nbs= p;    +---------------------+




Thanks,
Zhai H= ongjun
"""""""""""= ;""""""""""""&q= uot;""""""""""""= ;""""""""""""&q= uot;""""""""""""= ;"""""""""
Protocol Develop= ment Dept.VI, Central R&D Institute, ZTE Corporation
No. 68, Zijingh= ua Road, Yuhuatai District, Nanjing, P.R.China, 210012

Zhai Hongjun<= br>
Tel: +86-25-52877345
Email: zhai.hongjun@zte.com.cn
"&quo= t;""""""""""""&= quot;"""""""""""&quo= t;""""""""""""&= quot;"""""""""""&quo= t;""""""""""""&= quot;""""""



=

"Tissa Senevirat= hne (tsenevir)" <tsenevir@cisco.com>

<= span style=3D'font-size:7.5pt;font-family:"Arial","sans-serif"'>2012-01-13 = 12:21

=CA=D5=BC=FE=C8=CB

<zhai.hongjun@zte.com.cn= >

=B3=AD=CB=CD

<rbridge@postel.org>, <rbridge-bounces@postel.org&= gt;

=D6=F7=CC=E2=

RE: [rbridge] Coordinated Multicast Trees to solve RPF issue= s on active-active edge and more

 




Hi Hongjun
  I am not quite clear with the way you are proposing to use assigne= d nicknames in the pseudonode LSP.
 
Can you please us the diagram below and explain how your proposal will b= e used.
 
CE means in the followin= g diagram is an 802.1D device that is attached to RB1 and RB2 through Pt-Pt= links and treated as a port channel from CE stand point.
 
              =                      = ;RBx
              &nb= sp;                     &= nbsp;|
              &= nbsp;            Trill Campus
               |     &= nbsp;                    =                    |
    +----------+          = ;                     &nb= sp;   +------------+
    |  RB1  = ;   |                   &= nbsp;              |  RB2   &n= bsp;   |
    +----------+     &n= bsp;                     =        + ------------+
    =       \               &nb= sp;                     &= nbsp;            /
  &= nbsp;        \            = ;                     &nb= sp;             /
  &n= bsp;         \            = ;                     &nb= sp;          /
    &nb= sp;         ----------         &nbs= p;     -----------
        =               >   |    = ;         |  <  Port channel (LAG) =
                  &= nbsp;        |            = ; |
              &nbs= p;     +--------------------+
    &nb= sp;              |    CE  = ;                  |                   &nb= sp;+---------------------+
 
&nbs= p;
From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn] =
Sent: Thursday, January 12, 2012 7:59 PM
To: Tissa Sen= evirathne (tsenevir)
Cc: rbridge@postel.org; rbridge-bounces@post= el.org
Subject: RE: [rbridge] Coordinated Multicast Trees to solv= e RPF issues on active-active edge and more
 

Hi Tissa,

I have read your draft-tissa-tri= ll-cmt-00.txt with great interests.  In this draft, a new TLV, Affinit= y Sub-TLV, is introduced to give a member RBdige of a virtual RBridge group= much flexibity in describing the virtual RBridge nickname and  specif= ying the path of association to specific distribution tree(S).  Howeve= r, this new TLV causes some backward compatibilty problems between pre Affi= nity sub-TLV RBridges and new RBridges. Even if there is only one pre Affin= ity sub-TLV RBridge in TRILL network,the RPF check for virtual Rbridge will= fail on this RBridge.

Is the Affinity Sub-TLV necessary for a member RBridge to announ= ce the virtual Rbridge nickname and  the specific distribution trees? = Maybe it is not.
In a given vritual group, each  member Rbridge can advertise a s= pecific pseudonode-LSP to annouce the virtual RBridge nickname and the tree= s assigned to it.The nickname and the assigned trees are contained in  = ;the given Nickname Sub-TLV and Trees Sub-TLV in RFC6326. This pseudonode-L= SP represents a special virtual link, on which there is only one RBridge, i= .e.,  the RBridge advertising this LSP.  Only if different member= Rbridge is assigned different tree(s), RPF check information for the virtu= al Rbrigde in different trees can be correctly calculated on all the Rbridg= es in TRILL network, then the member RBridge can safely use the virtual Rbr= idge nickname to do the necessary TRILL-encapsultion on  received nati= ve frames. <= span style=3D'font-size:10.0pt;font-family:"Calibri","sans-serif"'>

= Therefore, backward compatibilty problems, caused by Affinity sub-TLV, is r= emoved, while the similar flexibilty of Affinity sub-TLV remains.


Thanks,
Zhai Ho= ngjun
"""""""""""= """"""""""""&qu= ot;""""""""""""= """"""""""""&qu= ot;""""""""""""= """""""""
Protocol Developm= ent Dept.VI, Central R&D Institute, ZTE Corporation
No. 68, Zijinghu= a Road, Yuhuatai District, Nanjing, P.R.China, 210012

Zhai Hongjun
Tel: +86-25-52877345
Email: zhai.hongjun@zte.com.cn
""= ;""""""""""""&q= uot;""""""""""""= ;""""""""""""&q= uot;""""""""""""= ;""""""""""""&q= uot;""""""

"Tissa Senevirathne (tsenev= ir)" <tsenevir@cisco.com>
=B7=A2=BC=FE=C8=CB:  rbridge-bounces@postel.org

<= p>2012-01-= 06 10:11

 

=CA=D5=BC=FE=C8= =CB

<rbridge@postel.org&g= t;

=B3=AD=CB=CD

=

=D6=F7=CC=E2

[rbridge] Coordinated Multi= cast Trees to solve RPF issues on        active-active = edge and more

<= br> 

 

<= br>


Dear All
 
We have published draft-ti= ssa-trill-cmt-00.txt, in this document we present a flexible framework to a= ssociate child RBridges to different parent RBRidges for RPF purpose.
 
Active-active forwarding at= the TRILL edge is a very important feature. Representation of the active-a= ctive sub system with a single virtual RBRidge is a common practice to achi= eve load balancing and to avoid MAC flip flop. However, use of virtual RBri= dge lead to RPF failures. In this document we provide a solution to address= the RPF failures. Please review and share comments.
 
ID can be found in URL: http://www.ietf.org/id/draft-tiss= a-trill-cmt-00.txt
 
S= ummary:
=  
Filename:   draft-tissa= -trill-cmt <= span style=3D'font-size:10.0pt;font-family:Consolas'>
Revision:   0= 0
Title:      =      Coordinated Multicast Trees (CMT)for TRILL
Creation date:    2012-01-05
WG ID:       =      Individual Submission
Number of pages: 14 =
 
Abstract:
  TRILL facilitates loop free con= nectivity to non TRILL legacy   networks via choice of an Appointed Forwarder for set of VLANs.
  Appointed Forwarder provi= des VLAN level load sharing with active-
  standby model. Mission critical operations such as High = Performance =
  Data Cente= rs require active-active load sharing model. Active-Active
  load sharing model can be accomplished= by representing any given non   TRILL legacy network with a single virtual RBridge. Virtual=
  representation of the non-TR= ILL legacy network with a single RBridge
  poses serious challenges in multi-destination RPF calcul= ations. This
  document = presents the required enhancements to build Coordinated
  Multicast Trees (CMT) within the TRILL = campus. CMT provides
  f= lexibility to RBridges to select desired path of association to a
  given distribution tree.=
 
 
Thanks
Tissa_______________________________________________
rbridge= mailing list
rbridge@postel.org
http://mailman.postel.org/mailman/li= stinfo/rbridge

 
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= --_000_CE35792847FBE84687FF9117132C8EFD42EDDBE3ADEXCHCLUSTER11_-- --===============1871999095== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============1871999095==-- From rbridge-bounces@postel.org Fri Jan 13 07:11:45 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 63A5D21F8591 for ; Fri, 13 Jan 2012 07:11:45 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.814 X-Spam-Level: X-Spam-Status: No, score=-105.814 tagged_above=-999 required=5 tests=[AWL=0.785, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jpI8DXA4UHvv for ; Fri, 13 Jan 2012 07:11:44 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id C947C21F845F for ; Fri, 13 Jan 2012 07:11:44 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0DF0q0U023056; Fri, 13 Jan 2012 07:00:53 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0DF07Fo022980 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Fri, 13 Jan 2012 07:00:17 -0800 (PST) Received: by lahg1 with SMTP id g1so603082lah.39 for ; Fri, 13 Jan 2012 07:00:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=6KWn0zuNnt9OEidLAiPR/9aDhJu3klHJl58FFeis0nY=; b=xvoNDaisvH4rx1Vn2ws4qwFYNXCm2mJnmI7Y5rlqNE9gbXXd6vGZqnTP9G8U7INmtO d2IcY25pG0cUbRBlbFiKJBkfCu3PwbeydutcrqxFjBp9gnI4x3KXQ91bBJ+VdFJIE5gm clsHYJ8/lWO0xcydaLZUPKzkf0t9ufSsYbHJI= Received: by 10.112.28.138 with SMTP id b10mr320417lbh.69.1326466806270; Fri, 13 Jan 2012 07:00:06 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.12.9 with HTTP; Fri, 13 Jan 2012 06:59:45 -0800 (PST) In-Reply-To: References: From: Donald Eastlake Date: Fri, 13 Jan 2012 09:59:45 -0500 Message-ID: To: gururam m X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0DF07Fo022980 Cc: rbridge@postel.org Subject: Re: [rbridge] TRILL behavior over 802.1AX interface (link aggregation) X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Hi Ram, On Fri, Jan 13, 2012 at 4:54 AM, gururam m wrote: > Hi, > =A0=A0=A0=A0 Can anyone point me to TRILL RFC/draft that describes TRILL = support > over multiple links/link aggregation (802.1AX) that provides details rela= ted > to > > =A01. Hello generation/reception > =A02. Adjacency Formation > =A03. DRB Election > =A04. LSP generation TRILL operates above the ports of an RBridge and RFC 6325 mentions 802.1AX as a function that is implemented inside RBridge ports. In particular, Appendix C says link aggregation occurs "below TRILL". On multi-destination traffic over parallel non-pseudo-node links visible to TRILL, see Section 4.5.2, particularly item 3, of RFC 6325. draft-ietf-trill-rbridge-bfd-01 says: If lower level mechanisms, such as link aggregation [802.1AX], are in use that present a single logical interface to TRILL IS-IS, only a single TRILL BFD session can be established to any other RBridge over this logical interface. However, lower layer OAM could be aware of and/or run separately on each of the components of an aggregation. Section 3.5 of RFC 6327 says: There can be multiple parallel adjacencies between neighbor RBridges that are visible to TRILL. (Multiple low-level links that have been bonded together by technologies such as link aggregation [802.1AX] appear to TRILL as a single link over which only a single TRILL adjacency could be established.) Any such links that have pseudonodes (see Section 6) are distinguished in the topology; such adjacencies, if they are in the Report state, appear in LSPs as per Section 6. However, there can be multiple parallel adjacencies without pseudonodes because they are point-to-point adjacencies or LAN adjacencies for which a pseudonode is not being created. Such parallel, non-pseudonode adjacencies in the Report state appear in LSPs as a single adjacency. ... In general, TRILL as currently specified, operates at layer two and a half, below Layer 3 routing but above bridging. The idea is that link aggregation is invisible to TRILL. As far as TRILL is concerned, the aggregation is just a single point-to-point link. Or, more precisely, the termination of the link aggregation over more than one RBridge port appears to TRILL to be a single port. Note that you could have RB1=3D=3DCB=3D=3DRB2 where CB is a customer bridge between two RBridges. Since RBridge ports are, for the most part, customer bridge ports, you could, for example, have link aggregation over, say, three physical links from RB1 to CB and just a single physical link from CB to RB2. Or you could have a link aggregation over 3 physical links between RB1 and CB and a link aggregation of five physical links between CB and RB2. All this is invisible to TRILL on RB1 and RB2 that each just see a single port. If there are multiple parallel links visible to TRILL, then all the Adjacency mechanisms in RFC 6327/6325 operate separately on them. The only thing to keep in mind is that all the non-pseudo-node parallel adjacencies visible to TRILL are reported in LSP as a single adjacency. > Regards > Ram Hope the above helps, Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Fri Jan 13 11:34:34 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 564F621F85FB for ; Fri, 13 Jan 2012 11:34:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.659 X-Spam-Level: X-Spam-Status: No, score=-2.659 tagged_above=-999 required=5 tests=[AWL=0.546, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_73=0.6, MIME_HTML_MOSTLY=0.001, MIME_QP_LONG_LINE=1.396, RCVD_IN_DNSWL_MED=-4, WEIRD_QUOTING=1.396] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vEebhSdcaDO3 for ; Fri, 13 Jan 2012 11:34:19 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id DA14921F85FD for ; Fri, 13 Jan 2012 11:34:19 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0DJ41RC002065; Fri, 13 Jan 2012 11:04:04 -0800 (PST) Received: from mail-iy0-f180.google.com (mail-iy0-f180.google.com [209.85.210.180]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0DJ3erC002027 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT); Fri, 13 Jan 2012 11:03:49 -0800 (PST) Received: by iadk27 with SMTP id k27so7306650iad.39 for ; Fri, 13 Jan 2012 11:03:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=references:in-reply-to:mime-version:content-transfer-encoding :content-type:message-id:cc:x-mailer:from:subject:date:to; bh=vwTVsxPxSZY7zGLLwAASbNQND1/NcpJx/j9RuyPUF2E=; b=gmSNQM8NOFn4DmDqW3mEGPRYUki3kwhggpoAXcr5N4Q0AGANqtSAiyEfMgfmsfAOxl j7LccwpRcP9HltBNhEz3Gw0n/OmCYEL5sG8Lv1X6zAgDn8C5m6B2zemx0sieLgrTvvU+ XmU56lrbwjxF0Mxml7g8GEVIhRK8BBVXMEPgU= Received: by 10.42.162.197 with SMTP id z5mr1386937icx.48.1326481420524; Fri, 13 Jan 2012 11:03:40 -0800 (PST) Received: from [192.168.253.225] ([12.207.18.42]) by mx.google.com with ESMTPS id l28sm31748358ibc.3.2012.01.13.11.03.37 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 13 Jan 2012 11:03:38 -0800 (PST) References: <344037D7CFEFE84E97E9CC1F56C5F4A56556C6@xmb-sjc-214.amer.cisco.com> In-Reply-To: Mime-Version: 1.0 (1.0) Message-Id: <09194D4B-96EB-48A8-8394-0354200F8BA1@gmail.com> X-Mailer: iPad Mail (9A405) From: Sam Aldrin Date: Fri, 13 Jan 2012 11:03:36 -0800 To: Janardhanan Pathangi Narasimhan X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: aldrin.ietf@gmail.com Cc: "Tissa Senevirathne\(tsenevir\)" , "zhai.hongjun@zte.com.cn" , "rbridge@postel.org" , "rbridge-bounces@postel.org" Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1235293582==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============1235293582== Content-Transfer-Encoding: 7bit Content-Type: multipart/alternative; boundary=Apple-Mail-D6AAC3CB-D45C-4EE0-BCB6-2826EE738971 --Apple-Mail-D6AAC3CB-D45C-4EE0-BCB6-2826EE738971 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 I agree with Jana. Scaling will be a major factor if we go the other route. Affinity TLV provid= es much better option while providing the same service with two trees. Sam Sent from my iPad On Jan 13, 2012, at 5:48 AM, Janardhanan Pathangi Narasimhan wrote: > Hi Hongjun, > =20 > I think your proposal is that form a tree rooted at RB1 and another tree r= ooted at RB2. The tree rooted at RB1 would have RBV-RB1 link, and similarly= the tree rooted at RB2 would have RB2-RBV link. Hence you are forcing the a= ffinity of RB1 or RB2 to RBV by placing the root on the RBridges themselves.= Is that correct? > =20 > Yes, this mechanism would work, but would not scale up. For e.g. in the ne= twork, if we have 10 such pairs of RB, i.e. RB1-RB2 providing RBV1, RB3-RB4 p= roviding RBV2, and so on, then to ensure that RB1-RBV1, RB2-RBV1, RB3-RBV2, R= B4-RBV2 and so on are present, we will have to minimum build 20 trees (10 pa= irs of RB). This will not scale, while with affinity TLV irrespective of num= ber of such RB pairs which are providing such services we would need only tw= o trees. > =20 > Thanks > Jana > =20 > =20 > From: rbridge-bounces@postel.org [mailto:rbridge-bounces@postel.org] On Be= half Of zhai.hongjun@zte.com.cn > Sent: Friday, January 13, 2012 10:35 AM > To: Tissa Senevirathne (tsenevir) > Cc: rbridge@postel.org; rbridge-bounces@postel.org > Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on a= ctive-active edge and more > =20 >=20 > Hi Tissa=EF=BC=8C=20 >=20 > In the diagram you given, assume 4 distribution trees are acturally calcul= ated in TRILL campus, i.e., T1 through T4. T1 and T2 are assigned to RB1, T= 3 and T4 are assigned to RB2.=20 >=20 > Even if RB1 can not see RB2 by hellos, (I think that) RB1 can generate a p= seudonode LSP, Pseu-LSP-RB1, to announce the virtual RBridge (RBv) nickname= and the trees assigned to it, i.e, T1 and T2. In this pseudonode LSP, RB1= is the only one neighbor (or RB1 and the virtual RBridge RBv are the only t= wo neigbors) of this pseudonode. After receiving this pseudonode LSP, RBx= can know the path to pseudonode RBv through RB1 on T1 or T2, shown in the= following diagram.=20 >=20 > RBx=20 > |=20 > Trill Campus=20 > | |=20 > +----------+ +------------+=20 > | RB1 | | RB2 |=20 > +----------+ + ------------+=20 > \ =20 > / \ =20 > /RBv \ =20 > ---------=20 > scheme of T1 or T2=20 >=20 > RB1 uses Nickname Sub-TLV and Trees Sub-TLV (instead of the Affinity sub-T= LV) in Pseu-LSP-RB1, to contains the RBv's nickname and the assigned trees T= 1 and T2.=20 >=20 > RB2 also annouce similar informtion in its pseudonode LSP, then RBx can kn= ow the path to RBv through RB2 on T3 and T4.=20 >=20 > RBx=20 > |=20 > Trill Campus=20 > | |=20 > +----------+ +------------+=20 > | RB1 | | RB2 |=20 > +----------+ + ------------+=20 > \ /=20 > \ /=20 > \ /=20 > ---------- -----------=20 > > | | < Port channel (LAG)=20 > | |=20 > +--------------------+=20 > | CE |=20 > +---------------------+=20 >=20 >=20 >=20 >=20 > Thanks, > Zhai Hongjun > """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" > Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation > No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 >=20 > Zhai Hongjun >=20 > Tel: +86-25-52877345 > Email: zhai.hongjun@zte.com.cn > """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" >=20 >=20 >=20 >=20 > "Tissa Senevirathne (tsenevir)" > 2012-01-13 12:21 >=20 > =E6=94=B6=E4=BB=B6=E4=BA=BA > > =E6=8A=84=E9=80=81 > , > =E4=B8=BB=E9=A2=98 > RE: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-ac= tive edge and more > =20 >=20 >=20 >=20 > Hi Hongjun=20 > =20 > I am not quite clear with the way you are proposing to use assigned nickna= mes in the pseudonode LSP.=20 > =20 > Can you please us the diagram below and explain how your proposal will be u= sed.=20 > =20 > CE means in the following diagram is an 802.1D device that is attached to R= B1 and RB2 through Pt-Pt links and treated as a port channel from CE stand p= oint.=20 > =20 > RBx=20 > |=20 > Trill Campus=20 > | |=20 > +----------+ +------------+=20 > | RB1 | | RB2 |=20 > +----------+ + ------------+=20 > \ /=20 > \ /=20 > \ /=20 > ---------- -----------=20 > > | | < Port channel (LAG)=20 > | |=20 > +--------------------+=20 > | CE |=20 > +---------------------+=20 > =20 > =20 > From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn]=20 > Sent: Thursday, January 12, 2012 7:59 PM > To: Tissa Senevirathne (tsenevir) > Cc: rbridge@postel.org; rbridge-bounces@postel.org > Subject: RE: [rbridge] Coordinated Multicast Trees to solve RPF issues on a= ctive-active edge and more=20 > =20 >=20 > Hi Tissa,=20 >=20 > I have read your draft-tissa-trill-cmt-00.txt with great interests. In th= is draft, a new TLV, Affinity Sub-TLV, is introduced to give a member RBdige= of a virtual RBridge group much flexibity in describing the virtual RBridge= nickname and specifying the path of association to specific distribution t= ree(S). However, this new TLV causes some backward compatibilty problems be= tween pre Affinity sub-TLV RBridges and new RBridges. Even if there is only o= ne pre Affinity sub-TLV RBridge in TRILL network,the RPF check for virtual R= bridge will fail on this RBridge. >=20 > Is the Affinity Sub-TLV necessary for a member RBridge to announce the vir= tual Rbridge nickname and the specific distribution trees? Maybe it is not.= =20 >=20 > In a given vritual group, each member Rbridge can advertise a specific ps= eudonode-LSP to annouce the virtual RBridge nickname and the trees assigned t= o it.The nickname and the assigned trees are contained in the given Nicknam= e Sub-TLV and Trees Sub-TLV in RFC6326. This pseudonode-LSP represents a spe= cial virtual link, on which there is only one RBridge, i.e., the RBridge ad= vertising this LSP. Only if different member Rbridge is assigned different t= ree(s), RPF check information for the virtual Rbrigde in different trees can= be correctly calculated on all the Rbridges in TRILL network, then the memb= er RBridge can safely use the virtual Rbridge nickname to do the necessary T= RILL-encapsultion on received native frames.=20 >=20 > Therefore, backward compatibilty problems, caused by Affinity sub-TLV, is r= emoved, while the similar flexibilty of Affinity sub-TLV remains.=20 >=20 >=20 > Thanks, > Zhai Hongjun > """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" > Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation > No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 >=20 > Zhai Hongjun >=20 > Tel: +86-25-52877345 > Email: zhai.hongjun@zte.com.cn > """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" >=20 >=20 > "Tissa Senevirathne (tsenevir)" =20 > =E5=8F=91=E4=BB=B6=E4=BA=BA: rbridge-bounces@postel.org > 2012-01-06 10:11 >=20 > =20 > =E6=94=B6=E4=BB=B6=E4=BA=BA > > =E6=8A=84=E9=80=81 > =E4=B8=BB=E9=A2=98 > [rbridge] Coordinated Multicast Trees to solve RPF issues on active= -active edge and more >=20 > =20 > =20 >=20 >=20 >=20 >=20 >=20 > Dear All=20 > =20 > We have published draft-tissa-trill-cmt-00.txt, in this document we presen= t a flexible framework to associate child RBridges to different parent RBRid= ges for RPF purpose.=20 > =20 > Active-active forwarding at the TRILL edge is a very important feature. Re= presentation of the active-active sub system with a single virtual RBRidge i= s a common practice to achieve load balancing and to avoid MAC flip flop. Ho= wever, use of virtual RBridge lead to RPF failures. In this document we prov= ide a solution to address the RPF failures. Please review and share comments= .=20 > =20 > ID can be found in URL: http://www.ietf.org/id/draft-tissa-trill-cmt-00.tx= t=20 > =20 > Summary:=20 > =20 > Filename: draft-tissa-trill-cmt=20 > Revision: 00=20 > Title: Coordinated Multicast Trees (CMT)for TRILL=20 > Creation date: 2012-01-05=20 > WG ID: Individual Submission=20 > Number of pages: 14=20 > =20 > Abstract:=20 > TRILL facilitates loop free connectivity to non TRILL legacy=20 > networks via choice of an Appointed Forwarder for set of VLANs.=20 > Appointed Forwarder provides VLAN level load sharing with active-=20 > standby model. Mission critical operations such as High Performance=20 > Data Centers require active-active load sharing model. Active-Active=20 > load sharing model can be accomplished by representing any given non=20 > TRILL legacy network with a single virtual RBridge. Virtual=20 > representation of the non-TRILL legacy network with a single RBridge=20 > poses serious challenges in multi-destination RPF calculations. This=20 > document presents the required enhancements to build Coordinated=20 > Multicast Trees (CMT) within the TRILL campus. CMT provides=20 > flexibility to RBridges to select desired path of association to a=20 > given distribution tree.=20 > =20 > =20 > Thanks=20 > Tissa_______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge >=20 > =20 > --------------------------------------------------------=20 > ZTE Information Security Notice: The information contained in this mail is= solely property of the sender's organization. This mail communication is co= nfidential. Recipients named above are obligated to maintain secrecy and are= not permitted to disclose the contents of this communication to others.=20 > This email and any files transmitted with it are confidential and intended= solely for the use of the individual or entity to whom they are addressed. I= f you have received this email in error please notify the originator of the m= essage. Any views expressed in this message are those of the individual send= er.=20 > This message has been scanned for viruses and Spam by ZTE Anti-Spam system= . >=20 > =20 > -------------------------------------------------------- > ZTE Information Security Notice: The information contained in this mail is= solely property of the sender's organization. This mail communication is co= nfidential. Recipients named above are obligated to maintain secrecy and are= not permitted to disclose the contents of this communication to others. > This email and any files transmitted with it are confidential and intended= solely for the use of the individual or entity to whom they are addressed. I= f you have received this email in error please notify the originator of the m= essage. Any views expressed in this message are those of the individual send= er. > This message has been scanned for viruses and Spam by ZTE Anti-Spam system= . > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge --Apple-Mail-D6AAC3CB-D45C-4EE0-BCB6-2826EE738971 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
I agree with Jana.
Scaling will be a major factor if we go the other route. Affinity TLV pro= vides much better option while providing the same service with two trees.

Sam

Sent from my iPad

On Jan 13,= 2012, at 5:48 AM, Janardhanan Pathangi Narasimhan <jana@force10networks.com> wrote:

=

Hi Hongjun,

 

I think your proposal is that form a tree rooted= at RB1 and another tree rooted at RB2. The tree rooted at RB1 would have RB= V-RB1 link,  and similarly the tree rooted at RB2 would have RB2-RBV li= nk. Hence you are forcing the affinity of RB1 or RB2 to RBV by placing the r= oot on the RBridges themselves. Is that correct?

 

Yes, this mechanism would work, but would not scale up. For e.= g. in the network, if we have 10 such pairs of RB, i.e. RB1-RB2 providing RB= V1, RB3-RB4 providing RBV2, and so on, then to ensure that RB1-RBV1, RB2-RBV= 1, RB3-RBV2, RB4-RBV2 and so on are present, we will have to minimum build 2= 0 trees (10 pairs of RB). This will not scale, while with affinity TLV irres= pective of number of such RB pairs which are providing such services we woul= d need only two trees.

 

Thanks

Jana

 

 

From: rbridge-bounces@postel.org [mailt= o:rbridge-bounces@postel.org] On Behalf Of zhai.hongjun@zte.com.cn
Sent: Friday, January= 13, 2012 10:35 AM
To: Tissa Senevirathne (tsenevir)
Cc:= rbridge@postel.org; rbridge-bounces@postel.org
Subjec= t: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on acti= ve-active edge and more

 

Hi Tissa=EF=BC=8C

In the diagram you given, assume 4 distribution trees are acturally calcu= lated in TRILL campus, i.e., T1 through T4.  T1 and T2 are assigned to R= B1, T3 and T4 are assigned to RB2.

= Even if RB1 can not see  RB2 by hellos, (I think that) RB1 can generate= a pseudonode LSP, Pseu-LSP-RB1,  to announce the virtual RBridge (RBv)= nickname and the trees assigned to it, i.e, T1 and T2.  In this pseudo= node LSP,  RB1 is the only one neighbor (or RB1 and the virtual RBridge= RBv are the only two neigbors)  of this pseudonode.  After receiv= ing this pseudonode LSP,  RBx can  know the path to  pseudono= de RBv through RB1 on T1 or T2, shown in the following diagram.
<= br>             = ;                     RBx<= /span>
          &nbs= p;                     &nb= sp;    |
     =                      = ;Trill Campus
      &nbs= p;        |             &n= bsp;                     &= nbsp;          |
    +----------+             &nbs= p;                     +--= ----------+
    |  RB1 &= nbsp;   |                  = ;                |  RB2   &= nbsp;   |
    +---------= -+                     &nb= sp;            + ------------+
          \     &nb= sp;                     &n= bsp;                     &= nbsp;
         = ; /  \                   &= nbsp;                     &= nbsp;  
       = ; /RBv \                   &nbs= p;          
&= nbsp;      ---------
&nb= sp;               scheme of T1 or T2

RB1 uses Nickname Su= b-TLV and Trees Sub-TLV (instead of the Affinity sub-TLV) in Pseu-LSP-R= B1, to contains the RBv's nickname and the assigned trees T1 and T2. <= br>
RB2 also annouce similar informtion in its ps= eudonode LSP, then RBx can know the path to RBv through RB2 on T3 and T4.

          &n= bsp;                     &= nbsp; RBx
        &= nbsp;                     &= nbsp;      |
  &nbs= p;                     &nb= sp;  Trill Campus
    &n= bsp;          |           &= nbsp;                     &= nbsp;            |
    +----------+           &nbs= p;                     &nb= sp; +------------+
    | &nbs= p;RB1     |                = ;                  |  RB2 &= nbsp;     |
    +--= --------+                   &nb= sp;              + ------------+ <= br>          \   &nb= sp;                     &n= bsp;                     &= nbsp;  /
      &nbs= p;    \                 &n= bsp;                     &= nbsp;       /
  &nb= sp;         \             &= nbsp;                     &= nbsp;        /
&nbs= p;             ----------      =         -----------
    &nbs= p;                     &nb= sp;|             |
                  &nb= sp; +--------------------+
   = ;                |    CE &= nbsp;                  |=
            &nb= sp;      +---------------------+


=

Thanks,
Zhai Hongjun
"""""""""""""""""""""""""""""""""""""""""= """""""""""""""""""""""""""""
Protocol Development Dept.VI, Central R&= ;D Institute, ZTE Corporation
No. 68, Zijinghua Road, Yuhuatai District, N= anjing, P.R.China, 210012

Zhai Hongjun

Tel: +86-25-52877345Email: zhai.hongjun@zte.com.cn
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""= "



<= td width=3D"36%" valign=3D"top" style=3D"width:36.0%;padding:.75pt .75pt .75= pt .75pt">

"Tissa Senevirathne (tsenevir)"= <tsenevir@cisco.com>=

2012-01-13 12:21

=

=E6=94=B6=E4=BB=B6=E4=BA=BA

<zhai.hongjun@zte.com.cn>

=E6=8A=84=E9= =80=81

<rbridge@postel.org>, <rbridge-bounces@postel.org>

<= /td>
=E4=B8=BB=E9=A2=98

RE: [rbridge] Coordinated Multicast Trees to solve RPF i= ssues on active-active edge and more

 

=




Hi Hongjun
 
I am not quite clear with the way you are pr= oposing to use assigned nicknames in the pseudonode LSP.
 
Can you please= us the diagram below and explain how your proposal will be used.  
CE me= ans in the following diagram is an 802.1D device that is attached to RB1 and= RB2 through Pt-Pt links and treated as a port channel from CE stand point.<= /span>
 
                    &= nbsp;              RBx
                &= nbsp;                    |=
          &nb= sp;                Trill Campus
            &= nbsp;  |                  =                      = ;      |
    += ----------+                   &= nbsp;               +------------+=
    |  RB1     | &nb= sp;                     &n= bsp;          |  RB2       |
    +----------+     &= nbsp;                     &= nbsp;      + ------------+
          \           &= nbsp;                     &= nbsp;                /
           \   &n= bsp;                     &= nbsp;                     /=
          &nb= sp; \                     &= nbsp;                     &= nbsp;/
        &nbs= p;     ----------              = -----------
       = ;               >   |   &nbs= p;         |  <  Port channel (LAG) <= br>             = ;              |       &nb= sp;     |
     = ;               +--------------------+
           =        |    CE         &n= bsp;          |
 
 
From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn]
Sent: Thursday, January 12, 2= 012 7:59 PM
To: Tissa Senevirathne (tsenevir)
Cc: rbridge@postel.org; rbridge-bounces@postel.org
Subject: R= E: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-activ= e edge and more
 

Hi Tissa,

I have read your draft-tissa-trill-cmt-00.txt with great inter= ests.  In this draft, a new TLV, Affinity Sub-TLV, is introduced to giv= e a member RBdige of a virtual RBridge group much flexibity in describing th= e virtual RBridge nickname and  specifying the path of association to s= pecific distribution tree(S).  However, this new TLV causes some backwa= rd compatibilty problems between pre Affinity sub-TLV RBridges and new RBrid= ges. Even if there is only one pre Affinity sub-TLV RBridge in TRILL network= ,the RPF check for virtual Rbridge will fail on this RBridge.

Is the Affinity Sub-TLV necessary for a member RBridge to announ= ce the virtual Rbridge nickname and  the specific distribution trees? M= aybe it is not.

In a given vritual group, each &n= bsp;member Rbridge can advertise a specific pseudonode-LSP to annouce the vi= rtual RBridge nickname and the trees assigned to it.The nickname and the ass= igned trees are contained in  the given Nickname Sub-TLV and Trees Sub-= TLV in RFC6326. This pseudonode-LSP represents a special virtual link, on wh= ich there is only one RBridge, i.e.,  the RBridge advertising this LSP.=  Only if different member Rbridge is assigned different tree(s), RPF c= heck information for the virtual Rbrigde in different trees can be correctly= calculated on all the Rbridges in TRILL network, then the member RBridge ca= n safely use the virtual Rbridge nickname to do the necessary TRILL-encapsul= tion on  received native frames.

Therefore, b= ackward compatibilty problems, caused by Affinity sub-TLV, is removed, while= the similar flexibilty of Affinity sub-TLV remains.
=

Thanks,
Zhai Hongjun
""""""""""""""""""""""""= """"""""""""""""""""""""""""""""""""""""""""""
Protocol Development Dept.= VI, Central R&D Institute, ZTE Corporation
No. 68, Zijinghua Road, Yu= huatai District, Nanjing, P.R.China, 210012

Zhai Hongjun

Tel: += 86-25-52877345
Email: zhai.hon= gjun@zte.com.cn
"""""""""""""""""""""""""""""""""""""""""""""""""""""= """"""""""""""""""

"Tissa Senevirathne (ts= enevir)" <tsenevir@cisco.com>= ;
=E5=8F=91=E4=BB=B6=E4=BA=BA:  rbridge-bounces@postel.org

2012-01-06 10:11

 

=

=E6=94=B6=E4=BB=B6=E4=BA=BA

<rbridge@postel.org>

=
<= p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right">=E6=8A=84=E9=80=81

=E4=B8=BB=E9=A2=98

[rbridge] Coordinated Multicast Trees to solve RPF issues on  = ;      active-active edge and more


 

 





Dear All
&n= bsp;
We have published draft-tissa-trill-cmt-00.txt, i= n this document we present a flexible framework to associate child RBridges t= o different parent RBRidges for RPF purpose.
<= span style=3D"font-family:"Arial","sans-serif""> 
Active-active forwarding at the TRILL edge is a very im= portant feature. Representation of the active-active sub system with a singl= e virtual RBRidge is a common practice to achieve load balancing and to avoi= d MAC flip flop. However, use of virtual RBridge lead to RPF failures. In th= is document we provide a solution to address the RPF failures. Please review= and share comments.
 
ID c= an be found in URL: http://www.ietf.org/id/draft-tissa-trill-cmt-00.t= xt
 
Summary: <= span style=3D"font-size:10.0pt;font-family:"Calibri","sans-se= rif"">
 
Filename:   draft-tissa-trill-cmt
Revision:   00
Title:       &nbs= p;    Coordinated Multicast Trees (CMT)for TRILL
Creation date:    = 2012-01-05
= WG ID:            Individual Submission=
Number of pages: 1= 4
 
Abstract:
  TRILL fa= cilitates loop free connectivity to non TRILL legacy
  networks via choice of an A= ppointed Forwarder for set of VLANs.
  Appointed Forwarder provides VLAN level loa= d sharing with active-
  standby model. Mission critical operations such as High P= erformance
=   Data Centers require active-active load sharing model. Active-Active<= /span> <= /span>
  load s= haring model can be accomplished by representing any given non
  TRILL legacy netwo= rk with a single virtual RBridge. Virtual
  representation of the non-TRILL legacy= network with a single RBridge
  poses serious challenges in multi-destination RPF= calculations. This
  document presents the required enhancements to build Coordin= ated
 = Multicast Trees (CMT) within the TRILL campus. CMT provides
  flexibility to RBri= dges to select desired path of association to a
  given distribution tree.<= span style=3D"font-family:"Arial","sans-serif""> =
 
 
Thanks
Tissa<= /span>_______________________________________________
rbridge m= ailing list
rbridge@postel.org<= br>http://mai= lman.postel.org/mailman/listinfo/rbridge

 
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= --Apple-Mail-D6AAC3CB-D45C-4EE0-BCB6-2826EE738971-- --===============1235293582== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============1235293582==-- From rbridge-bounces@postel.org Fri Jan 13 12:12:14 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C3FD311E8089 for ; Fri, 13 Jan 2012 12:12:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.205 X-Spam-Level: X-Spam-Status: No, score=-3.205 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_73=0.6, MIME_HTML_MOSTLY=0.001, MIME_QP_LONG_LINE=1.396, RCVD_IN_DNSWL_MED=-4, WEIRD_QUOTING=1.396] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KROmXj91dc10 for ; Fri, 13 Jan 2012 12:12:13 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 2584C11E8081 for ; Fri, 13 Jan 2012 12:12:13 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0DJjdJv008786; Fri, 13 Jan 2012 11:45:42 -0800 (PST) Received: from mail-tul01m020-f180.google.com (mail-tul01m020-f180.google.com [209.85.214.180]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0DJisin008685 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT); Fri, 13 Jan 2012 11:45:03 -0800 (PST) Received: by obbwc20 with SMTP id wc20so4436665obb.39 for ; Fri, 13 Jan 2012 11:44:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=references:in-reply-to:mime-version:content-transfer-encoding :content-type:message-id:cc:x-mailer:from:subject:date:to; bh=6e+iY/IJF/KSMZXz5qMjfjIbOcFHq6QGtrTODaFHAs8=; b=l172m0POZ13gLaWUKUEwfw1H1OuyyLcd1ZVBHdLg3uil9Ye9oYGQo7eu3NV2iAtj+w SAmKRsioPXoAy7c1QHv0DsJWougHE5gJ9CtjGT4GPm94a1zao4UZ38gg62RxK5DvwDAU GBfDmEVcQJ0b13CwmqGUZV54wimPudaDnaToY= Received: by 10.50.190.196 with SMTP id gs4mr2117866igc.14.1326483893587; Fri, 13 Jan 2012 11:44:53 -0800 (PST) Received: from [10.29.141.124] (mobile-166-205-137-225.mycingular.net. [166.205.137.225]) by mx.google.com with ESMTPS id uc6sm16210497igb.4.2012.01.13.11.44.49 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 13 Jan 2012 11:44:52 -0800 (PST) References: <344037D7CFEFE84E97E9CC1F56C5F4A56556C6@xmb-sjc-214.amer.cisco.com> In-Reply-To: Mime-Version: 1.0 (1.0) Message-Id: X-Mailer: iPhone Mail (9A405) From: Jon Hudson Date: Fri, 13 Jan 2012 11:44:42 -0800 To: Janardhanan Pathangi Narasimhan X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: jon.hudson@gmail.com Cc: "Tissa Senevirathne\(tsenevir\)" , "zhai.hongjun@zte.com.cn" , "rbridge@postel.org" , "rbridge-bounces@postel.org" Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1510648954==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============1510648954== Content-Transfer-Encoding: 7bit Content-Type: multipart/alternative; boundary=Apple-Mail-7475EB9B-63F5-4B97-8C66-1EFA909C9EDF --Apple-Mail-7475EB9B-63F5-4B97-8C66-1EFA909C9EDF Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Great explanation Jana! Scaling is the challenge. On Jan 13, 2012, at 5:48 AM, Janardhanan Pathangi Narasimhan wrote: > Hi Hongjun, > =20 > I think your proposal is that form a tree rooted at RB1 and another tree r= ooted at RB2. The tree rooted at RB1 would have RBV-RB1 link, and similarly= the tree rooted at RB2 would have RB2-RBV link. Hence you are forcing the a= ffinity of RB1 or RB2 to RBV by placing the root on the RBridges themselves.= Is that correct? > =20 > Yes, this mechanism would work, but would not scale up. For e.g. in the ne= twork, if we have 10 such pairs of RB, i.e. RB1-RB2 providing RBV1, RB3-RB4 p= roviding RBV2, and so on, then to ensure that RB1-RBV1, RB2-RBV1, RB3-RBV2, R= B4-RBV2 and so on are present, we will have to minimum build 20 trees (10 pa= irs of RB). This will not scale, while with affinity TLV irrespective of num= ber of such RB pairs which are providing such services we would need only tw= o trees. > =20 > Thanks > Jana > =20 > =20 > From: rbridge-bounces@postel.org [mailto:rbridge-bounces@postel.org] On Be= half Of zhai.hongjun@zte.com.cn > Sent: Friday, January 13, 2012 10:35 AM > To: Tissa Senevirathne (tsenevir) > Cc: rbridge@postel.org; rbridge-bounces@postel.org > Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on a= ctive-active edge and more > =20 >=20 > Hi Tissa=EF=BC=8C=20 >=20 > In the diagram you given, assume 4 distribution trees are acturally calcul= ated in TRILL campus, i.e., T1 through T4. T1 and T2 are assigned to RB1, T= 3 and T4 are assigned to RB2.=20 >=20 > Even if RB1 can not see RB2 by hellos, (I think that) RB1 can generate a p= seudonode LSP, Pseu-LSP-RB1, to announce the virtual RBridge (RBv) nickname= and the trees assigned to it, i.e, T1 and T2. In this pseudonode LSP, RB1= is the only one neighbor (or RB1 and the virtual RBridge RBv are the only t= wo neigbors) of this pseudonode. After receiving this pseudonode LSP, RBx= can know the path to pseudonode RBv through RB1 on T1 or T2, shown in the= following diagram.=20 >=20 > RBx=20 > |=20 > Trill Campus=20 > | |=20 > +----------+ +------------+=20 > | RB1 | | RB2 |=20 > +----------+ + ------------+=20 > \ =20 > / \ =20 > /RBv \ =20 > ---------=20 > scheme of T1 or T2=20 >=20 > RB1 uses Nickname Sub-TLV and Trees Sub-TLV (instead of the Affinity sub-T= LV) in Pseu-LSP-RB1, to contains the RBv's nickname and the assigned trees T= 1 and T2.=20 >=20 > RB2 also annouce similar informtion in its pseudonode LSP, then RBx can kn= ow the path to RBv through RB2 on T3 and T4.=20 >=20 > RBx=20 > |=20 > Trill Campus=20 > | |=20 > +----------+ +------------+=20 > | RB1 | | RB2 |=20 > +----------+ + ------------+=20 > \ /=20 > \ /=20 > \ /=20 > ---------- -----------=20 > > | | < Port channel (LAG)=20 > | |=20 > +--------------------+=20 > | CE |=20 > +---------------------+=20 >=20 >=20 >=20 >=20 > Thanks, > Zhai Hongjun > """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" > Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation > No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 >=20 > Zhai Hongjun >=20 > Tel: +86-25-52877345 > Email: zhai.hongjun@zte.com.cn > """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" >=20 >=20 >=20 >=20 > "Tissa Senevirathne (tsenevir)" > 2012-01-13 12:21 >=20 > =E6=94=B6=E4=BB=B6=E4=BA=BA > > =E6=8A=84=E9=80=81 > , > =E4=B8=BB=E9=A2=98 > RE: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-ac= tive edge and more > =20 >=20 >=20 >=20 > Hi Hongjun=20 > =20 > I am not quite clear with the way you are proposing to use assigned nickna= mes in the pseudonode LSP.=20 > =20 > Can you please us the diagram below and explain how your proposal will be u= sed.=20 > =20 > CE means in the following diagram is an 802.1D device that is attached to R= B1 and RB2 through Pt-Pt links and treated as a port channel from CE stand p= oint.=20 > =20 > RBx=20 > |=20 > Trill Campus=20 > | |=20 > +----------+ +------------+=20 > | RB1 | | RB2 |=20 > +----------+ + ------------+=20 > \ /=20 > \ /=20 > \ /=20 > ---------- -----------=20 > > | | < Port channel (LAG)=20 > | |=20 > +--------------------+=20 > | CE |=20 > +---------------------+=20 > =20 > =20 > From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn]=20 > Sent: Thursday, January 12, 2012 7:59 PM > To: Tissa Senevirathne (tsenevir) > Cc: rbridge@postel.org; rbridge-bounces@postel.org > Subject: RE: [rbridge] Coordinated Multicast Trees to solve RPF issues on a= ctive-active edge and more=20 > =20 >=20 > Hi Tissa,=20 >=20 > I have read your draft-tissa-trill-cmt-00.txt with great interests. In th= is draft, a new TLV, Affinity Sub-TLV, is introduced to give a member RBdige= of a virtual RBridge group much flexibity in describing the virtual RBridge= nickname and specifying the path of association to specific distribution t= ree(S). However, this new TLV causes some backward compatibilty problems be= tween pre Affinity sub-TLV RBridges and new RBridges. Even if there is only o= ne pre Affinity sub-TLV RBridge in TRILL network,the RPF check for virtual R= bridge will fail on this RBridge. >=20 > Is the Affinity Sub-TLV necessary for a member RBridge to announce the vir= tual Rbridge nickname and the specific distribution trees? Maybe it is not.= =20 >=20 > In a given vritual group, each member Rbridge can advertise a specific ps= eudonode-LSP to annouce the virtual RBridge nickname and the trees assigned t= o it.The nickname and the assigned trees are contained in the given Nicknam= e Sub-TLV and Trees Sub-TLV in RFC6326. This pseudonode-LSP represents a spe= cial virtual link, on which there is only one RBridge, i.e., the RBridge ad= vertising this LSP. Only if different member Rbridge is assigned different t= ree(s), RPF check information for the virtual Rbrigde in different trees can= be correctly calculated on all the Rbridges in TRILL network, then the memb= er RBridge can safely use the virtual Rbridge nickname to do the necessary T= RILL-encapsultion on received native frames.=20 >=20 > Therefore, backward compatibilty problems, caused by Affinity sub-TLV, is r= emoved, while the similar flexibilty of Affinity sub-TLV remains.=20 >=20 >=20 > Thanks, > Zhai Hongjun > """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" > Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation > No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 >=20 > Zhai Hongjun >=20 > Tel: +86-25-52877345 > Email: zhai.hongjun@zte.com.cn > """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" >=20 >=20 > "Tissa Senevirathne (tsenevir)" =20 > =E5=8F=91=E4=BB=B6=E4=BA=BA: rbridge-bounces@postel.org > 2012-01-06 10:11 >=20 > =20 > =E6=94=B6=E4=BB=B6=E4=BA=BA > > =E6=8A=84=E9=80=81 > =E4=B8=BB=E9=A2=98 > [rbridge] Coordinated Multicast Trees to solve RPF issues on active= -active edge and more >=20 > =20 > =20 >=20 >=20 >=20 >=20 >=20 > Dear All=20 > =20 > We have published draft-tissa-trill-cmt-00.txt, in this document we presen= t a flexible framework to associate child RBridges to different parent RBRid= ges for RPF purpose.=20 > =20 > Active-active forwarding at the TRILL edge is a very important feature. Re= presentation of the active-active sub system with a single virtual RBRidge i= s a common practice to achieve load balancing and to avoid MAC flip flop. Ho= wever, use of virtual RBridge lead to RPF failures. In this document we prov= ide a solution to address the RPF failures. Please review and share comments= .=20 > =20 > ID can be found in URL: http://www.ietf.org/id/draft-tissa-trill-cmt-00.tx= t=20 > =20 > Summary:=20 > =20 > Filename: draft-tissa-trill-cmt=20 > Revision: 00=20 > Title: Coordinated Multicast Trees (CMT)for TRILL=20 > Creation date: 2012-01-05=20 > WG ID: Individual Submission=20 > Number of pages: 14=20 > =20 > Abstract:=20 > TRILL facilitates loop free connectivity to non TRILL legacy=20 > networks via choice of an Appointed Forwarder for set of VLANs.=20 > Appointed Forwarder provides VLAN level load sharing with active-=20 > standby model. Mission critical operations such as High Performance=20 > Data Centers require active-active load sharing model. Active-Active=20 > load sharing model can be accomplished by representing any given non=20 > TRILL legacy network with a single virtual RBridge. Virtual=20 > representation of the non-TRILL legacy network with a single RBridge=20 > poses serious challenges in multi-destination RPF calculations. This=20 > document presents the required enhancements to build Coordinated=20 > Multicast Trees (CMT) within the TRILL campus. CMT provides=20 > flexibility to RBridges to select desired path of association to a=20 > given distribution tree.=20 > =20 > =20 > Thanks=20 > Tissa_______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge >=20 > =20 > --------------------------------------------------------=20 > ZTE Information Security Notice: The information contained in this mail is= solely property of the sender's organization. This mail communication is co= nfidential. Recipients named above are obligated to maintain secrecy and are= not permitted to disclose the contents of this communication to others.=20 > This email and any files transmitted with it are confidential and intended= solely for the use of the individual or entity to whom they are addressed. I= f you have received this email in error please notify the originator of the m= essage. Any views expressed in this message are those of the individual send= er.=20 > This message has been scanned for viruses and Spam by ZTE Anti-Spam system= . >=20 > =20 > -------------------------------------------------------- > ZTE Information Security Notice: The information contained in this mail is= solely property of the sender's organization. This mail communication is co= nfidential. Recipients named above are obligated to maintain secrecy and are= not permitted to disclose the contents of this communication to others. > This email and any files transmitted with it are confidential and intended= solely for the use of the individual or entity to whom they are addressed. I= f you have received this email in error please notify the originator of the m= essage. Any views expressed in this message are those of the individual send= er. > This message has been scanned for viruses and Spam by ZTE Anti-Spam system= . > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge --Apple-Mail-7475EB9B-63F5-4B97-8C66-1EFA909C9EDF Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
Great explanation Jana!

Scaling is the challenge.

On Jan 13, 2012, at 5= :48 AM, Janardhanan Pathangi Narasimhan <jana@force10networks.com> wrote:

=

Hi Hongjun,

 

I think your proposal is that form a tree rooted= at RB1 and another tree rooted at RB2. The tree rooted at RB1 would have RB= V-RB1 link,  and similarly the tree rooted at RB2 would have RB2-RBV li= nk. Hence you are forcing the affinity of RB1 or RB2 to RBV by placing the r= oot on the RBridges themselves. Is that correct?

 

Yes, this mechanism would work, but would not scale up. For e.= g. in the network, if we have 10 such pairs of RB, i.e. RB1-RB2 providing RB= V1, RB3-RB4 providing RBV2, and so on, then to ensure that RB1-RBV1, RB2-RBV= 1, RB3-RBV2, RB4-RBV2 and so on are present, we will have to minimum build 2= 0 trees (10 pairs of RB). This will not scale, while with affinity TLV irres= pective of number of such RB pairs which are providing such services we woul= d need only two trees.

 

Thanks

Jana

 

 

From: rbridge-bounces@postel.org [mailt= o:rbridge-bounces@postel.org] On Behalf Of zhai.hongjun@zte.com.cn
Sent: Friday, January= 13, 2012 10:35 AM
To: Tissa Senevirathne (tsenevir)
Cc:= rbridge@postel.org; rbridge-bounces@postel.org
Subjec= t: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on acti= ve-active edge and more

 

Hi Tissa=EF=BC=8C

In the diagram you given, assume 4 distribution trees are acturally calcu= lated in TRILL campus, i.e., T1 through T4.  T1 and T2 are assigned to R= B1, T3 and T4 are assigned to RB2.

= Even if RB1 can not see  RB2 by hellos, (I think that) RB1 can generate= a pseudonode LSP, Pseu-LSP-RB1,  to announce the virtual RBridge (RBv)= nickname and the trees assigned to it, i.e, T1 and T2.  In this pseudo= node LSP,  RB1 is the only one neighbor (or RB1 and the virtual RBridge= RBv are the only two neigbors)  of this pseudonode.  After receiv= ing this pseudonode LSP,  RBx can  know the path to  pseudono= de RBv through RB1 on T1 or T2, shown in the following diagram.
<= br>             = ;                     RBx<= /span>
          &nbs= p;                     &nb= sp;    |
     =                      = ;Trill Campus
      &nbs= p;        |             &n= bsp;                     &= nbsp;          |
    +----------+             &nbs= p;                     +--= ----------+
    |  RB1 &= nbsp;   |                  = ;                |  RB2   &= nbsp;   |
    +---------= -+                     &nb= sp;            + ------------+
          \     &nb= sp;                     &n= bsp;                     &= nbsp;
         = ; /  \                   &= nbsp;                     &= nbsp;  
       = ; /RBv \                   &nbs= p;          
&= nbsp;      ---------
&nb= sp;               scheme of T1 or T2

RB1 uses Nickname Su= b-TLV and Trees Sub-TLV (instead of the Affinity sub-TLV) in Pseu-LSP-R= B1, to contains the RBv's nickname and the assigned trees T1 and T2. <= br>
RB2 also annouce similar informtion in its ps= eudonode LSP, then RBx can know the path to RBv through RB2 on T3 and T4.

          &n= bsp;                     &= nbsp; RBx
        &= nbsp;                     &= nbsp;      |
  &nbs= p;                     &nb= sp;  Trill Campus
    &n= bsp;          |           &= nbsp;                     &= nbsp;            |
    +----------+           &nbs= p;                     &nb= sp; +------------+
    | &nbs= p;RB1     |                = ;                  |  RB2 &= nbsp;     |
    +--= --------+                   &nb= sp;              + ------------+ <= br>          \   &nb= sp;                     &n= bsp;                     &= nbsp;  /
      &nbs= p;    \                 &n= bsp;                     &= nbsp;       /
  &nb= sp;         \             &= nbsp;                     &= nbsp;        /
&nbs= p;             ----------      =         -----------
    &nbs= p;                     &nb= sp;|             |
                  &nb= sp; +--------------------+
   = ;                |    CE &= nbsp;                  |=
            &nb= sp;      +---------------------+


=

Thanks,
Zhai Hongjun
"""""""""""""""""""""""""""""""""""""""""= """""""""""""""""""""""""""""
Protocol Development Dept.VI, Central R&= ;D Institute, ZTE Corporation
No. 68, Zijinghua Road, Yuhuatai District, N= anjing, P.R.China, 210012

Zhai Hongjun

Tel: +86-25-52877345Email: zhai.hongjun@zte.com.cn
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""= "



<= td width=3D"36%" valign=3D"top" style=3D"width:36.0%;padding:.75pt .75pt .75= pt .75pt">

"Tissa Senevirathne (tsenevir)"= <tsenevir@cisco.com>=

2012-01-13 12:21

=

=E6=94=B6=E4=BB=B6=E4=BA=BA

<zhai.hongjun@zte.com.cn>

=E6=8A=84=E9= =80=81

<rbridge@postel.org>, <rbridge-bounces@postel.org>

<= /td>
=E4=B8=BB=E9=A2=98

RE: [rbridge] Coordinated Multicast Trees to solve RPF i= ssues on active-active edge and more

 

=




Hi Hongjun
 
I am not quite clear with the way you are pr= oposing to use assigned nicknames in the pseudonode LSP.
 
Can you please= us the diagram below and explain how your proposal will be used.  
CE me= ans in the following diagram is an 802.1D device that is attached to RB1 and= RB2 through Pt-Pt links and treated as a port channel from CE stand point.<= /span>
 
                    &= nbsp;              RBx
                &= nbsp;                    |=
          &nb= sp;                Trill Campus
            &= nbsp;  |                  =                      = ;      |
    += ----------+                   &= nbsp;               +------------+=
    |  RB1     | &nb= sp;                     &n= bsp;          |  RB2       |
    +----------+     &= nbsp;                     &= nbsp;      + ------------+
          \           &= nbsp;                     &= nbsp;                /
           \   &n= bsp;                     &= nbsp;                     /=
          &nb= sp; \                     &= nbsp;                     &= nbsp;/
        &nbs= p;     ----------              = -----------
       = ;               >   |   &nbs= p;         |  <  Port channel (LAG) <= br>             = ;              |       &nb= sp;     |
     = ;               +--------------------+
           =        |    CE         &n= bsp;          |
 
 
From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn]
Sent: Thursday, January 12, 2= 012 7:59 PM
To: Tissa Senevirathne (tsenevir)
Cc: rbridge@postel.org; rbridge-bounces@postel.org
Subject: R= E: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-activ= e edge and more
 

Hi Tissa,

I have read your draft-tissa-trill-cmt-00.txt with great inter= ests.  In this draft, a new TLV, Affinity Sub-TLV, is introduced to giv= e a member RBdige of a virtual RBridge group much flexibity in describing th= e virtual RBridge nickname and  specifying the path of association to s= pecific distribution tree(S).  However, this new TLV causes some backwa= rd compatibilty problems between pre Affinity sub-TLV RBridges and new RBrid= ges. Even if there is only one pre Affinity sub-TLV RBridge in TRILL network= ,the RPF check for virtual Rbridge will fail on this RBridge.

Is the Affinity Sub-TLV necessary for a member RBridge to announ= ce the virtual Rbridge nickname and  the specific distribution trees? M= aybe it is not.

In a given vritual group, each &n= bsp;member Rbridge can advertise a specific pseudonode-LSP to annouce the vi= rtual RBridge nickname and the trees assigned to it.The nickname and the ass= igned trees are contained in  the given Nickname Sub-TLV and Trees Sub-= TLV in RFC6326. This pseudonode-LSP represents a special virtual link, on wh= ich there is only one RBridge, i.e.,  the RBridge advertising this LSP.=  Only if different member Rbridge is assigned different tree(s), RPF c= heck information for the virtual Rbrigde in different trees can be correctly= calculated on all the Rbridges in TRILL network, then the member RBridge ca= n safely use the virtual Rbridge nickname to do the necessary TRILL-encapsul= tion on  received native frames.

Therefore, b= ackward compatibilty problems, caused by Affinity sub-TLV, is removed, while= the similar flexibilty of Affinity sub-TLV remains.
=

Thanks,
Zhai Hongjun
""""""""""""""""""""""""= """"""""""""""""""""""""""""""""""""""""""""""
Protocol Development Dept.= VI, Central R&D Institute, ZTE Corporation
No. 68, Zijinghua Road, Yu= huatai District, Nanjing, P.R.China, 210012

Zhai Hongjun

Tel: += 86-25-52877345
Email: zhai.hon= gjun@zte.com.cn
"""""""""""""""""""""""""""""""""""""""""""""""""""""= """"""""""""""""""

"Tissa Senevirathne (ts= enevir)" <tsenevir@cisco.com>= ;
=E5=8F=91=E4=BB=B6=E4=BA=BA:  rbridge-bounces@postel.org

2012-01-06 10:11

 

=

=E6=94=B6=E4=BB=B6=E4=BA=BA

<rbridge@postel.org>

=
<= p class=3D"MsoNormal" align=3D"right" style=3D"text-align:right">=E6=8A=84=E9=80=81

=E4=B8=BB=E9=A2=98

[rbridge] Coordinated Multicast Trees to solve RPF issues on  = ;      active-active edge and more


 

 





Dear All
&n= bsp;
We have published draft-tissa-trill-cmt-00.txt, i= n this document we present a flexible framework to associate child RBridges t= o different parent RBRidges for RPF purpose.
<= span style=3D"font-family:"Arial","sans-serif""> 
Active-active forwarding at the TRILL edge is a very im= portant feature. Representation of the active-active sub system with a singl= e virtual RBRidge is a common practice to achieve load balancing and to avoi= d MAC flip flop. However, use of virtual RBridge lead to RPF failures. In th= is document we provide a solution to address the RPF failures. Please review= and share comments.
 
ID c= an be found in URL: http://www.ietf.org/id/draft-tissa-trill-cmt-00.t= xt
 
Summary: <= span style=3D"font-size:10.0pt;font-family:"Calibri","sans-se= rif"">
 
Filename:   draft-tissa-trill-cmt
Revision:   00
Title:       &nbs= p;    Coordinated Multicast Trees (CMT)for TRILL
Creation date:    = 2012-01-05
= WG ID:            Individual Submission=
Number of pages: 1= 4
 
Abstract:
  TRILL fa= cilitates loop free connectivity to non TRILL legacy
  networks via choice of an A= ppointed Forwarder for set of VLANs.
  Appointed Forwarder provides VLAN level loa= d sharing with active-
  standby model. Mission critical operations such as High P= erformance
=   Data Centers require active-active load sharing model. Active-Active<= /span> <= /span>
  load s= haring model can be accomplished by representing any given non
  TRILL legacy netwo= rk with a single virtual RBridge. Virtual
  representation of the non-TRILL legacy= network with a single RBridge
  poses serious challenges in multi-destination RPF= calculations. This
  document presents the required enhancements to build Coordin= ated
 = Multicast Trees (CMT) within the TRILL campus. CMT provides
  flexibility to RBri= dges to select desired path of association to a
  given distribution tree.<= span style=3D"font-family:"Arial","sans-serif""> =
 
 
Thanks
Tissa<= /span>_______________________________________________
rbridge m= ailing list
rbridge@postel.org<= br>http://mai= lman.postel.org/mailman/listinfo/rbridge

 
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SMTPSVC(6.0.3790.4675); Sat, 14 Jan 2012 07:04:39 -0800 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Sat, 14 Jan 2012 07:04:34 -0800 Message-ID: <344037D7CFEFE84E97E9CC1F56C5F4A56559B6@xmb-sjc-214.amer.cisco.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more Thread-Index: AczSc2Uc/PlMRqk+T8mSLyB+TJB4awAVzViQ References: From: "Tissa Senevirathne (tsenevir)" To: , "Janardhanan Pathangi Narasimhan" X-OriginalArrivalTime: 14 Jan 2012 15:04:39.0929 (UTC) FILETIME=[D6B61E90:01CCD2CD] X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: tsenevir@cisco.com Cc: rbridge@postel.org, rbridge-bounces@postel.org Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0749412896==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org This is a multi-part message in MIME format. --===============0749412896== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CCD2CD.D4674667" This is a multi-part message in MIME format. ------_=_NextPart_001_01CCD2CD.D4674667 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: quoted-printable Hi Hongjun =20 Technically speaking what you are proposing is similar to Affinity TLV = approach. With the difference of using Pseudonode LSP instead of the = Affinity TLV . =20 Main issue with PSN-LSP approach is the scale, Let me explain that in = bit more details. =20 Affinity TLV is a single sub-TLV announced by each of the members of = active-active pair or pairs. =20 Similarly PSN-LSP is also announced by each of the members of = active-active pair or pairs. =20 However, PSN-LSP is a fully contained LSP that contain multiple TLV s = that needed to fully form a PSN. =20 This will increase the size of the LSP-DB of the campus and introduce X = more additional TLVs. =20 There can be many active-active pair/pairs in the network, and with = this approach we have so many more additional LSP in the network. =20 As we know size of LSP-DB is a major scaling issue and always want to = keep it as small as possible, where possible. =20 Lets also look at why PSN-LSP approach being proposed. It is to solve a = possible backward compatibility issue. =20 TRILL still in infancy and there are not many TRILL networks. So the = backward compatibility is not a wide spread issue. Also affinity draft = has backward compatibility mode. =20 What we should look at is having a solution that help us to scale better = as TRILL become widely deployed in Large data-centers/Enterprises where = such active-active edge is widely used. =20 With PSN-LSP approach I think we are unnecessarily injecting additional = LSP and TLVs and making it more complicated and less scalable when we = can solve with a single sub-TLV. Also Affinity TLV draft discuss = backward compatibility approach, in the event there older Rbridges. =20 Thanks Tissa =20 From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn]=20 Sent: Friday, January 13, 2012 8:17 PM To: Janardhanan Pathangi Narasimhan Cc: rbridge@postel.org; rbridge-bounces@postel.org; Tissa Senevirathne = (tsenevir) Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues = on active-active edge and more =20 Hi Jana, Jon and Tissa,=20 > I think your proposal is that form a tree rooted at RB1 and another = tree rooted at RB2. The tree rooted at RB1 would have RBV-RB1 link, =20 > and similarly the tree rooted at RB2 would have RB2-RBV link. Hence = you are forcing the affinity of RB1 or RB2 to RBV by placing the root on = the RBridges themselves.=20 > Is that correct?=20 No, It didn't mean that the trees must rooted at RB1, RB2, respectively. = It has no any needs of where the roots of these trees are. These trees = are ordinary trees calculated by all RBridges in TRILL campus wide.=20 For example, there are 4 actually-calculated trees in TRILL campus, T1 = through T4. T1 roots at RBi, T2 roots at RBj, T3 roots at RBm and T4 = roots at RBn. If T1 and T2 are assigned to member RBridge RB1, and the = rest trees to RB2. The method used to assign trees to a member RBridge = is the same as given in Section 5.1 in draft CMT.=20 In the below topology, Since RB1 knows it is a member RBridge of Rbridge = Group RBv1 and that T1/T2 are assigned to it, RB1 can originate a = pseudonode LSP(even if it has not seen any neighbors in RBv by hellos) = and advertize it in TRILL campus. This pseudonode LSP contains a = Nickname sub-TLV where nickname of RBv1 is carried, and a Trees sub_TLV = where the wanted-to-using tress(i.e., T1 and T2) are carried, as well as = a neighbor TLV where RB1 is the only neighbor contained in this = pseudonode LSP.=20 After receiving this psuedonode LSP, another RBridge, e.g., RBx, knows = the paths to RBv through RB1 on T1 and T2. Then RPF information for RBv1 = can be calculated correctly by RBx on these two trees.=20 RBx=20 |=20 Trill Campus=20 | |=20 +----------+ +------------+=20 | RB1 | | RB2 |=20 +----------+ + ------------+=20 \ /=20 \ /=20 \ /=20 ---------- -----------=20 > | | < Port channel (LAG)=20 | |=20 +--------------------+=20 | CE |=20 +---------------------+=20 Besides RBv1, If RB1joins another Rbridge Group RBv2, and T2/T3 are = assigned to RB1, RB1 can originates another pseudonode LSP, where = nickname of RBv2 and T2/T3 are carried in Nickname sub-TLV and Trees = sub-TLV, respectively. After receiving this LSP, RBx can knows path to = RBv2 through RB1 on T2 and T3. RPF check information can also calculated = correctly by RBx on thes two trees.=20 Similar things RB2 can do, and RPF check information can be calculated = correctly by RBx on the assigned trees=20 =20 > Yes, this mechanism would work, but would not scale up. For e.g. in = the network, if we have 10 such pairs of RB, i.e. RB1-RB2 providing = RBV1, RB3-RB4 providing RBV2,=20 > and so on, then to ensure that RB1-RBV1, RB2-RBV1, RB3-RBV2, RB4-RBV2 = and so on are present, we will have to minimum build 20 trees (10 pairs = of RB).=20 > This will not scale, while with affinity TLV irrespective of number of = such RB pairs which are providing such services we would need only two = trees.=20 No, It does not require much more trees to build if using pseudonode = LSP, instead of affinity TLV, to notify other RBridges the affinity of = RBv via RB1. It just needs to originate much more pseudonode LSPs if an = Rbridge joins more than one RBridge Group.=20 Thanks, Zhai Hongjun """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 Zhai Hongjun Tel: +86-25-52877345 Email: zhai.hongjun@zte.com.cn """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" Janardhanan Pathangi Narasimhan =20 =B7=A2=BC=FE=C8=CB: rbridge-bounces@postel.org=20 2012-01-13 21:48=20 =CA=D5=BC=FE=C8=CB "zhai.hongjun@zte.com.cn" , "Tissa Senevirathne = (tsenevir)" =20 =B3=AD=CB=CD "rbridge@postel.org" , "rbridge-bounces@postel.org" = =20 =D6=F7=CC=E2 Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on = active-active edge and more =20 =09 Hi Hongjun,=20 =20 I think your proposal is that form a tree rooted at RB1 and another tree = rooted at RB2. The tree rooted at RB1 would have RBV-RB1 link, and = similarly the tree rooted at RB2 would have RB2-RBV link. Hence you are = forcing the affinity of RB1 or RB2 to RBV by placing the root on the = RBridges themselves. Is that correct?=20 =20 Yes, this mechanism would work, but would not scale up. For e.g. in the = network, if we have 10 such pairs of RB, i.e. RB1-RB2 providing RBV1, = RB3-RB4 providing RBV2, and so on, then to ensure that RB1-RBV1, = RB2-RBV1, RB3-RBV2, RB4-RBV2 and so on are present, we will have to = minimum build 20 trees (10 pairs of RB). This will not scale, while with = affinity TLV irrespective of number of such RB pairs which are providing = such services we would need only two trees.=20 =20 Thanks=20 Jana=20 =20 =20 From: rbridge-bounces@postel.org [mailto:rbridge-bounces@postel.org] On = Behalf Of zhai.hongjun@zte.com.cn Sent: Friday, January 13, 2012 10:35 AM To: Tissa Senevirathne (tsenevir) Cc: rbridge@postel.org; rbridge-bounces@postel.org Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues = on active-active edge and more=20 =20 Hi Tissa=A3=AC=20 In the diagram you given, assume 4 distribution trees are acturally = calculated in TRILL campus, i.e., T1 through T4. T1 and T2 are assigned = to RB1, T3 and T4 are assigned to RB2.=20 Even if RB1 can not see RB2 by hellos, (I think that) RB1 can generate = a pseudonode LSP, Pseu-LSP-RB1, to announce the virtual RBridge (RBv) = nickname and the trees assigned to it, i.e, T1 and T2. In this = pseudonode LSP, RB1 is the only one neighbor (or RB1 and the virtual = RBridge RBv are the only two neigbors) of this pseudonode. After = receiving this pseudonode LSP, RBx can know the path to pseudonode = RBv through RB1 on T1 or T2, shown in the following diagram.=20 RBx=20 |=20 Trill Campus=20 | |=20 +----------+ +------------+=20 | RB1 | | RB2 |=20 +----------+ + ------------+=20 \ =20 / \ =20 /RBv \ =20 ---------=20 scheme of T1 or T2=20 RB1 uses Nickname Sub-TLV and Trees Sub-TLV (instead of the Affinity = sub-TLV) in Pseu-LSP-RB1, to contains the RBv's nickname and the = assigned trees T1 and T2.=20 RB2 also annouce similar informtion in its pseudonode LSP, then RBx can = know the path to RBv through RB2 on T3 and T4.=20 RBx=20 |=20 Trill Campus=20 | |=20 +----------+ +------------+=20 | RB1 | | RB2 |=20 +----------+ + ------------+=20 \ /=20 \ /=20 \ /=20 ---------- -----------=20 > | | < Port channel (LAG)=20 | |=20 +--------------------+=20 | CE |=20 +---------------------+=20 Thanks, Zhai Hongjun """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 Zhai Hongjun Tel: +86-25-52877345 Email: zhai.hongjun@zte.com.cn """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" "Tissa Senevirathne (tsenevir)" =20 2012-01-13 12:21=20 =20 =CA=D5=BC=FE=C8=CB =20 =B3=AD=CB=CD , =20 =D6=F7=CC=E2 RE: [rbridge] Coordinated Multicast Trees to solve RPF issues on = active-active edge and more =20 =20 =09 Hi Hongjun=20 =20 I am not quite clear with the way you are proposing to use assigned = nicknames in the pseudonode LSP.=20 =20 Can you please us the diagram below and explain how your proposal will = be used.=20 =20 CE means in the following diagram is an 802.1D device that is attached = to RB1 and RB2 through Pt-Pt links and treated as a port channel from CE = stand point.=20 =20 RBx=20 |=20 Trill Campus=20 | |=20 +----------+ +------------+=20 | RB1 | | RB2 |=20 +----------+ + ------------+=20 \ /=20 \ /=20 \ /=20 ---------- -----------=20 > | | < Port channel (LAG)=20 | |=20 +--------------------+=20 | CE |=20 +---------------------+=20 =20 =20 From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn]=20 Sent: Thursday, January 12, 2012 7:59 PM To: Tissa Senevirathne (tsenevir) Cc: rbridge@postel.org; rbridge-bounces@postel.org Subject: RE: [rbridge] Coordinated Multicast Trees to solve RPF issues = on active-active edge and more=20 =20 Hi Tissa,=20 I have read your draft-tissa-trill-cmt-00.txt with great interests. In = this draft, a new TLV, Affinity Sub-TLV, is introduced to give a member = RBdige of a virtual RBridge group much flexibity in describing the = virtual RBridge nickname and specifying the path of association to = specific distribution tree(S). However, this new TLV causes some = backward compatibilty problems between pre Affinity sub-TLV RBridges and = new RBridges. Even if there is only one pre Affinity sub-TLV RBridge in = TRILL network,the RPF check for virtual Rbridge will fail on this = RBridge. Is the Affinity Sub-TLV necessary for a member RBridge to announce the = virtual Rbridge nickname and the specific distribution trees? Maybe it = is not.=20 In a given vritual group, each member Rbridge can advertise a specific = pseudonode-LSP to annouce the virtual RBridge nickname and the trees = assigned to it.The nickname and the assigned trees are contained in the = given Nickname Sub-TLV and Trees Sub-TLV in RFC6326. This pseudonode-LSP = represents a special virtual link, on which there is only one RBridge, = i.e., the RBridge advertising this LSP. Only if different member = Rbridge is assigned different tree(s), RPF check information for the = virtual Rbrigde in different trees can be correctly calculated on all = the Rbridges in TRILL network, then the member RBridge can safely use = the virtual Rbridge nickname to do the necessary TRILL-encapsultion on = received native frames.=20 Therefore, backward compatibilty problems, caused by Affinity sub-TLV, = is removed, while the similar flexibilty of Affinity sub-TLV remains.=20 Thanks, Zhai Hongjun """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 Zhai Hongjun Tel: +86-25-52877345 Email: zhai.hongjun@zte.com.cn """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" "Tissa Senevirathne (tsenevir)" =20 =B7=A2=BC=FE=C8=CB: rbridge-bounces@postel.org=20 2012-01-06 10:11=20 =20 =20 =CA=D5=BC=FE=C8=CB =20 =B3=AD=CB=CD =09 =D6=F7=CC=E2 [rbridge] Coordinated Multicast Trees to solve RPF issues on = active-active edge and more =20 =20 =20 =09 Dear All=20 We have published draft-tissa-trill-cmt-00.txt, in this document we = present a flexible framework to associate child RBridges to different = parent RBRidges for RPF purpose.=20 Active-active forwarding at the TRILL edge is a very important feature. = Representation of the active-active sub system with a single virtual = RBRidge is a common practice to achieve load balancing and to avoid MAC = flip flop. However, use of virtual RBridge lead to RPF failures. In this = document we provide a solution to address the RPF failures. Please = review and share comments.=20 ID can be found in URL: = http://www.ietf.org/id/draft-tissa-trill-cmt-00.txt = =20 Summary:=20 Filename: draft-tissa-trill-cmt=20 Revision: 00=20 Title: Coordinated Multicast Trees (CMT)for TRILL=20 Creation date: 2012-01-05=20 WG ID: Individual Submission=20 Number of pages: 14=20 Abstract:=20 TRILL facilitates loop free connectivity to non TRILL legacy=20 networks via choice of an Appointed Forwarder for set of VLANs.=20 Appointed Forwarder provides VLAN level load sharing with active-=20 standby model. Mission critical operations such as High Performance=20 Data Centers require active-active load sharing model. Active-Active=20 load sharing model can be accomplished by representing any given non=20 TRILL legacy network with a single virtual RBridge. Virtual=20 representation of the non-TRILL legacy network with a single RBridge=20 poses serious challenges in multi-destination RPF calculations. This=20 document presents the required enhancements to build Coordinated=20 Multicast Trees (CMT) within the TRILL campus. CMT provides=20 flexibility to RBridges to select desired path of association to a=20 given distribution tree.=20 Thanks=20 Tissa_______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge =20 --------------------------------------------------------=20 ZTE Information Security Notice: The information contained in this mail = is solely property of the sender's organization. This mail communication = is confidential. 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Hi Hongjun

 

Technically speaking what you are proposing is similar to Affinity = TLV approach. With the difference of using Pseudonode LSP instead of the = Affinity TLV .

 

Main issue with PSN-LSP approach is the scale, Let me explain that in = bit more details.

 

Affinity TLV is a single sub-TLV announced by each of the members of = active-active pair or pairs.

 

Similarly PSN-LSP is also announced by each of the members of = active-active pair or pairs.

 

However, PSN-LSP is a fully contained LSP that contain  multiple = TLV s that needed to fully form a PSN.

 

This will increase the size of the LSP-DB of the campus and introduce = X more additional TLVs.

 

There can be many  active-active pair/pairs in the network, and = with this approach we have so many more additional LSP in the = network.

 

As we know size of LSP-DB is a major scaling issue and always want to = keep it as small as possible, where possible.

 

Lets also look at why PSN-LSP approach being proposed. It is to solve = a possible backward compatibility issue.

 

TRILL still in infancy and there are not many TRILL networks. =  So the backward compatibility is not a wide spread issue. Also = affinity draft has backward compatibility mode.

 

What we should look at is having a solution that help us to scale = better as TRILL become widely deployed in Large data-centers/Enterprises = where such active-active edge is widely used.

 

With PSN-LSP approach I think we are unnecessarily injecting = additional LSP and TLVs and making it more complicated and less scalable = when we can solve with a single sub-TLV. Also Affinity TLV draft discuss = backward compatibility approach, in the event there older = Rbridges.

 

Thanks

Tissa

 

From:= = zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn] =
Sent: Friday, January 13, 2012 8:17 PM
To: = Janardhanan Pathangi Narasimhan
Cc: rbridge@postel.org; = rbridge-bounces@postel.org; Tissa Senevirathne = (tsenevir)
Subject: Re: [rbridge] Coordinated Multicast Trees = to solve RPF issues on active-active edge and = more

 


Hi Jana, Jon = and Tissa,

> I think = your proposal is that form a tree rooted at RB1 and another tree rooted = at RB2. The tree rooted at RB1 would have RBV-RB1 link,   =
> and = similarly the tree rooted at RB2 would have RB2-RBV link. Hence you are = forcing the affinity of RB1 or RB2 to RBV by placing the root on the = RBridges themselves.
> Is that = correct?

No, It = didn't mean that the trees must rooted at RB1, RB2, respectively. =  It has no any needs of where the roots of these trees are. These = trees are ordinary trees calculated by all RBridges in TRILL campus = wide.

For example, = there are 4 actually-calculated trees in TRILL campus, T1 through T4. T1 = roots at RBi, T2 roots at RBj, T3 roots at RBm and T4 roots at RBn. If = T1 and T2 are assigned to member RBridge RB1, and the rest trees to RB2. = The method used to assign trees to a member RBridge is the same as given = in Section 5.1 in draft CMT.

In the below = topology, Since RB1 knows it is a member RBridge of Rbridge Group RBv1 = and that T1/T2 are assigned to it, RB1 can originate a pseudonode = LSP(even if it has not seen any neighbors in RBv by hellos) and = advertize it in TRILL campus. This pseudonode LSP contains a Nickname = sub-TLV where nickname of RBv1 is carried, and a Trees sub_TLV where the = wanted-to-using tress(i.e., T1 and T2) are carried, as well as a = neighbor TLV where RB1 is the only neighbor contained in this pseudonode = LSP.

After = receiving this  psuedonode LSP, another RBridge, e.g., RBx, =  knows the paths to RBv through RB1 on T1 and T2. Then RPF = information for RBv1 can be calculated correctly by RBx on these two = trees.
                    =              RBx
                  =                   = |
                  =         Trill Campus
              |     =                     =                     =  | =
   +----------+           =                     =     +------------+
   |  RB1     |       =                     =        |  RB2       = |
   +----------+           =                     =    + ------------+
         \         =                     =                     =  / =
          \         =                     =                   = /
           \       =                     =                 =  / =
             ----------   =             -----------
                  =    >   |             | =  <  Port channel (LAG)
                  =         |             = |
                  =  +--------------------+
                  | =    CE                 =    | =
                  = +---------------------+

Besides = RBv1, If RB1joins another Rbridge Group RBv2, and T2/T3 are assigned to = RB1, RB1 can originates another pseudonode LSP, where nickname of RBv2 = and T2/T3 are carried in Nickname sub-TLV and Trees sub-TLV, = respectively. After receiving this LSP, RBx can knows path to RBv2 = through RB1 on T2 and T3. RPF check information can also calculated = correctly by RBx on thes two trees.

Similar = things RB2 can do, and RPF check information can be calculated correctly = by RBx on the assigned trees
 =
> Yes, = this mechanism would work, but would not scale up. For e.g. in the = network, if we have 10 such pairs of RB, i.e. RB1-RB2 providing RBV1, = RB3-RB4 providing RBV2,
> and so = on, then to ensure that RB1-RBV1, RB2-RBV1, RB3-RBV2, RB4-RBV2 and so on = are present, we will have to minimum build 20 trees (10 pairs of RB). =
> This = will not scale, while with affinity TLV irrespective of number of such = RB pairs which are providing such services we would need only two = trees.

No, It does = not require much more trees to build if using pseudonode LSP, instead of = affinity TLV,  to notify other RBridges the affinity of RBv via = RB1. It just needs to originate much more pseudonode LSPs if an Rbridge = joins more than one RBridge Group.



T= hanks,
Zhai = Hongjun
""""""""""&q= uot;"""""""""""&qu= ot;"""""""""""&quo= t;""""""""""""= ;""""""""""""= """""""""""
Pro= tocol Development Dept.VI, Central R&D Institute, ZTE = Corporation
No. 68, Zijinghua Road, Yuhuatai District, Nanjing, = P.R.China, 210012

Zhai Hongjun

Tel: = +86-25-52877345
Email: = zhai.hongjun@zte.com.cn
"""""""&quo= t;""""""""""""= ;""""""""""""= """"""""""""&= quot;"""""""""""&q= uot;"""""""""""&qu= ot;""



Janardhanan = Pathangi Narasimhan <jana@force10networks.com> =
=B7=A2=BC=FE=C8=CB: =  rbridge-bounces@postel.org

2012-01-13 = 21:48

"zhai.hon= gjun@zte.com.cn" <zhai.hongjun@zte.com.cn>, "Tissa = Senevirathne        (tsenevir)" = <tsenevir@cisco.com>

=CA=D5=BC=FE=C8=CB

=B3=AD=CB=CD

"rbridge@= postel.org" <rbridge@postel.org>, = "rbridge-bounces@postel.org" = <rbridge-bounces@postel.org> =

=D6=F7=CC=E2

Re: [rbridge] = Coordinated Multicast Trees to solve RPF issues on active-active edge = and more

 




Hi Hongjun,
 =
I = think your proposal is that form a tree rooted at RB1 and another tree = rooted at RB2. The tree rooted at RB1 would have RBV-RB1 link,  and = similarly the tree rooted at RB2 would have RB2-RBV link. Hence you are = forcing the affinity of RB1 or RB2 to RBV by placing the root on the = RBridges themselves. Is that correct?
 =
Yes, this = mechanism would work, but would not scale up. For e.g. in the network, = if we have 10 such pairs of RB, i.e. RB1-RB2 providing RBV1, RB3-RB4 = providing RBV2, and so on, then to ensure that RB1-RBV1, RB2-RBV1, = RB3-RBV2, RB4-RBV2 and so on are present, we will have to minimum build = 20 trees (10 pairs of RB). This will not scale, while with affinity TLV = irrespective of number of such RB pairs which are providing such = services we would need only two trees.
 =
Thanks=
Jana =
 
 
From:= = rbridge-bounces@postel.org [mailto:rbridge-bounces@postel.org] On = Behalf Of zhai.hongjun@zte.com.cn
Sent: Friday, January = 13, 2012 10:35 AM
To: Tissa Senevirathne = (tsenevir)
Cc: rbridge@postel.org; = rbridge-bounces@postel.org
Subject: Re: [rbridge] Coordinated = Multicast Trees to solve RPF issues on active-active edge and = more
 

Hi Tissa=A3=AC

In the diagram you given, assume 4 distribution trees are = acturally calculated in TRILL campus, i.e., T1 through T4.  T1 and = T2 are assigned to RB1, T3 and T4 are assigned to RB2.

Even if RB1 can not see  RB2 by hellos, (I think that) RB1 = can generate a pseudonode LSP, Pseu-LSP-RB1,  to announce the = virtual RBridge (RBv) nickname and the trees assigned to it, i.e, T1 and = T2.  In this pseudonode LSP,  RB1 is the only one neighbor (or = RB1 and the virtual RBridge RBv are the only two neigbors)  of this = pseudonode.  After receiving this pseudonode LSP,  RBx can =  know the path to  pseudonode RBv through RB1 on T1 or T2, = shown in the following diagram.

                  =                RBx
                  =                   = |
                  =         Trill Campus
              |     =                     =                     =  | =
   +----------+           =                     =     +------------+
   |  RB1     |       =                     =        |  RB2       = |
   +----------+           =                     =    + ------------+
         \         =                     =                     =  
         /  \     =                     =                   =   =
       /RBv \         =                     =  
      ---------
               scheme of = T1 or T2 =

RB1 uses Nickname = Sub-TLV and Trees Sub-TLV (instead of the = Affinity sub-TLV) in Pseu-LSP-RB1, to contains the RBv's nickname and the assigned = trees T1 and T2. =

RB2 also annouce similar informtion in its pseudonode LSP, then RBx = can know the path to RBv through RB2 on T3 and T4.

                  =                RBx
                  =                   = |
                  =         Trill Campus
              |     =                     =                     =  | =
   +----------+           =                     =     +------------+
   |  RB1     |       =                     =        |  RB2       = |
   +----------+           =                     =    + ------------+
         \         =                     =                     =  / =
          \         =                     =                   = /
           \       =                     =                 =  / =
             ----------   =             -----------
                  =    >   |             | =  <  Port channel (LAG)
                  =         |             = |
                  =  +--------------------+
                  | =    CE                 =    | =
                  = +---------------------+



<= br>Thanks,
Zhai = Hongjun
""""""""""&q= uot;"""""""""""&qu= ot;"""""""""""&quo= t;""""""""""""= ;""""""""""""= """""""""""
Pro= tocol Development Dept.VI, Central R&D Institute, ZTE = Corporation
No. 68, Zijinghua Road, Yuhuatai District, Nanjing, = P.R.China, 210012

Zhai Hongjun

Tel: = +86-25-52877345
Email: = zhai.hongjun@zte.com.cn
"""""""&quo= t;""""""""""""= ;""""""""""""= """"""""""""&= quot;"""""""""""&q= uot;"""""""""""&qu= ot;""

"Tissa = Senevirathne (tsenevir)" <tsenevir@cisco.com> =

2012-01-13 = 12:21 =

 

<zhai.hongj= un@zte.com.cn> =

=CA=D5=BC=FE=C8=CB

=B3=AD=CB=CD

<rbridge@po= stel.org>, <rbridge-bounces@postel.org> =

=D6=F7=CC=E2

RE: [rbridge] = Coordinated Multicast Trees to solve RPF issues on active-active edge = and more


  =

 





Hi Hongjun
 
I am not quite clear with the way you are proposing to use = assigned nicknames in the pseudonode LSP.
 
Can you please us the diagram below and explain how your proposal = will be used.
 
CE means in the following diagram is an 802.1D device that is = attached to RB1 and RB2 through Pt-Pt links and treated as a port = channel from CE stand point.
 
                  =                 RBx
                  =                   = |
                  =         Trill Campus
              |     =                     =                     =  | =
   +----------+           =                     =     +------------+
   |  RB1     |       =                     =        |  RB2       = |
   +----------+           =                     =    + ------------+
         \         =                     =                     =  / =
          \         =                     =                   = /
           \       =                     =                 =  / =
             ----------   =             -----------
                  =    >   |             | =  <  Port channel (LAG)
                  =         |             = |
                  =  +--------------------+
                  | =    CE                 =    | =
                  = +---------------------+
 
 
From: = zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn] =
Sent: Thursday, January 12, 2012 7:59 PM
To: Tissa = Senevirathne (tsenevir)
Cc: rbridge@postel.org; = rbridge-bounces@postel.org
Subject: RE: [rbridge] Coordinated = Multicast Trees to solve RPF issues on active-active edge and = more =
 

Hi = Tissa, =

I = have read your draft-tissa-trill-cmt-00.txt with great interests. =  In this draft, a new TLV, Affinity Sub-TLV, is introduced to give = a member RBdige of a virtual RBridge group much flexibity in describing = the virtual RBridge nickname and  specifying the path of = association to specific distribution tree(S).  However, this new = TLV causes some backward compatibilty problems between pre Affinity = sub-TLV RBridges and new RBridges. Even if there is only one pre = Affinity sub-TLV RBridge in TRILL network,the RPF check for virtual = Rbridge will fail on this RBridge.

Is the Affinity Sub-TLV = necessary for a member RBridge to announce the virtual Rbridge nickname = and  the specific distribution trees? Maybe it is not.

In = a given vritual group, each  member Rbridge can advertise a = specific pseudonode-LSP to annouce the virtual RBridge nickname and the = trees assigned to it.The nickname and the assigned trees are contained = in  the given Nickname Sub-TLV and Trees Sub-TLV in RFC6326. This = pseudonode-LSP represents a special virtual link, on which there is only = one RBridge, i.e.,  the RBridge advertising this LSP.  Only if = different member Rbridge is assigned different tree(s), RPF check = information for the virtual Rbrigde in different trees can be correctly = calculated on all the Rbridges in TRILL network, then the member RBridge = can safely use the virtual Rbridge nickname to do the necessary = TRILL-encapsultion on  received native frames.

The= refore, backward compatibilty problems, caused by Affinity sub-TLV, is = removed, while the similar flexibilty of Affinity sub-TLV = remains. =


T= hanks,
Zhai = Hongjun
""""""""""&q= uot;"""""""""""&qu= ot;"""""""""""&quo= t;""""""""""""= ;""""""""""""= """""""""""
Pro= tocol Development Dept.VI, Central R&D Institute, ZTE = Corporation
No. 68, Zijinghua Road, Yuhuatai District, Nanjing, = P.R.China, 210012

Zhai Hongjun

Tel: = +86-25-52877345
Email: = zhai.hongjun@zte.com.cn
"""""""&quo= t;""""""""""""= ;""""""""""""= """"""""""""&= quot;"""""""""""&q= uot;"""""""""""&qu= ot;""

"Tissa = Senevirathne (tsenevir)" <tsenevir@cisco.com> =
=B7=A2=BC=FE=C8=CB: =  rbridge-bounces@postel.org =

2012-01-06 = 10:11 =

  =

 

<rbridge@po= stel.org> =

=CA=D5=BC=FE=C8=CB

=B3=AD=CB=CD

=D6=F7=CC=E2

[rbridge] = Coordinated Multicast Trees to solve RPF issues on       =  active-active edge and = more



  =

  =

 





Dea= r All =

We = have published draft-tissa-trill-cmt-00.txt, in this document we present = a flexible framework to associate child RBridges to different parent = RBRidges for RPF purpose.

Active-= active forwarding at the TRILL edge is a very important feature. = Representation of the active-active sub system with a single virtual = RBRidge is a common practice to achieve load balancing and to avoid MAC = flip flop. However, use of virtual RBridge lead to RPF failures. In this = document we provide a solution to address the RPF failures. Please = review and share comments.

ID can = be found in URL: http://www.= ietf.org/id/draft-tissa-trill-cmt-00.txt

Summary= : =

Filename:   = draft-tissa-trill-cmt
Revision:   = 00
Title:     =        Coordinated Multicast Trees (CMT)for = TRILL =
Creation date: =    2012-01-05
WG ID:     =        Individual Submission
Number of pages: = 14 =

Abstract:
 TRILL = facilitates loop free connectivity to non TRILL legacy
 networks via = choice of an Appointed Forwarder for set of VLANs.
 Appointed = Forwarder provides VLAN level load sharing with active-
 standby model. = Mission critical operations such as High Performance
 Data Centers = require active-active load sharing model. Active-Active
 load sharing = model can be accomplished by representing any given non
 TRILL legacy = network with a single virtual RBridge. Virtual
 representation = of the non-TRILL legacy network with a single RBridge
 poses serious = challenges in multi-destination RPF calculations. This
 document = presents the required enhancements to build Coordinated
 Multicast = Trees (CMT) within the TRILL campus. CMT provides
 flexibility to = RBridges to select desired path of association to a
 given = distribution tree.


Thanks<= /span>
Tissa_____________= __________________________________
rbridge mailing = list
rbridge@postel.org
http://mailman.postel.org/mailman/listinfo/= rbridge

 
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------_=_NextPart_001_01CCD2CD.D4674667-- --===============0749412896== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0749412896==-- From rbridge-bounces@postel.org Sat Jan 14 20:25:23 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BCA1921F847E for ; Sat, 14 Jan 2012 20:25:23 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.005 X-Spam-Level: X-Spam-Status: No, score=-2.005 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_25=0.6, J_CHICKENPOX_34=0.6, J_CHICKENPOX_73=0.6, MIME_HTML_MOSTLY=0.001, MIME_QP_LONG_LINE=1.396, RCVD_IN_DNSWL_MED=-4, WEIRD_QUOTING=1.396] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9xbzPZ6fG7v0 for ; Sat, 14 Jan 2012 20:25:21 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 5AF3721F846B for ; Sat, 14 Jan 2012 20:25:14 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0F4Ai9q004911; Sat, 14 Jan 2012 20:10:47 -0800 (PST) Received: from mail-iy0-f180.google.com (mail-iy0-f180.google.com [209.85.210.180]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0F4ASbO004892 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT); Sat, 14 Jan 2012 20:10:37 -0800 (PST) Received: by iadk27 with SMTP id k27so9982097iad.39 for ; Sat, 14 Jan 2012 20:10:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=references:in-reply-to:mime-version:content-transfer-encoding :content-type:message-id:cc:x-mailer:from:subject:date:to; bh=V9QwC/XzVCS8ncw4Hs2upYUgwjwiqAITX5mK3nHGqXE=; b=ImqzAkN2rWZuzUaZ7tcegmwgRZHU8blIxl7cPUbTYMTo8WKyYFajIKZ1HnI/UxCvqA chVRaE7oSV0B5A2wYB7QHaW+zTI4nZt9czZstdhK6JIID1ip3M8Hdxe29Ob+19efrK8I ZG/8NxxreUTwayZFPmLpD9SGWTsMAbJlFgWKU= Received: by 10.43.133.9 with SMTP id hw9mr6940130icc.34.1326600627996; Sat, 14 Jan 2012 20:10:27 -0800 (PST) Received: from [10.0.1.15] (c-98-234-218-27.hsd1.ca.comcast.net. [98.234.218.27]) by mx.google.com with ESMTPS id 36sm48618238ibc.6.2012.01.14.20.10.24 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 14 Jan 2012 20:10:26 -0800 (PST) References: <344037D7CFEFE84E97E9CC1F56C5F4A56559B6@xmb-sjc-214.amer.cisco.com> In-Reply-To: <344037D7CFEFE84E97E9CC1F56C5F4A56559B6@xmb-sjc-214.amer.cisco.com> Mime-Version: 1.0 (1.0) Message-Id: X-Mailer: iPhone Mail (9A405) From: Jon Hudson Date: Sat, 14 Jan 2012 20:10:19 -0800 To: "Tissa Senevirathne (tsenevir)" X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: jon.hudson@gmail.com Cc: "rbridge@postel.org" , "" , Janardhanan Pathangi Narasimhan , "rbridge-bounces@postel.org" Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1297817319==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============1297817319== Content-Transfer-Encoding: 7bit Content-Type: multipart/alternative; boundary=Apple-Mail-C28A8C9A-C1F4-40BD-BCA5-A49258564CCB --Apple-Mail-C28A8C9A-C1F4-40BD-BCA5-A49258564CCB Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Just to add a few data points As of now only Cisco and Brocade have been shipping a "TRILL based" product=20= By late 2011 numbers of units in production networks Cisco >500 Brocade >300=20 So with growth let's assume 1000-1200 total. However neither Brocade or Ciscos solution is pure openTRILL. Both have work= to do on that front. As I understand it Force10 & Extreme will ship soon but have not yet. In addition the affinity-TLV does not require a hardware change for anyone (= that I am aware of). And since those ~1000 today will need some software upd= ates anyway to become compliant, backwards comparability is essentially a no= n issue for the affinity TLV. If the PSN-LSP solution increased scalability, or added functionality then i= t (or anything else that does) deserves careful consideration. =20 PSN-LSP seems to only gain something that isn't hyper critical in this case a= nd adds scaling concerns. I often have to alleviate concerns that TRILL contains scaling issues in its= use of IS-IS, I don't wish to add fuel to that fire.=20 My 0x2 bits On Jan 14, 2012, at 7:04 AM, "Tissa Senevirathne (tsenevir)" wrote: > Hi Hongjun > =20 > Technically speaking what you are proposing is similar to Affinity TLV app= roach. With the difference of using Pseudonode LSP instead of the Affinity T= LV . > =20 > Main issue with PSN-LSP approach is the scale, Let me explain that in bit m= ore details. > =20 > Affinity TLV is a single sub-TLV announced by each of the members of activ= e-active pair or pairs. > =20 > Similarly PSN-LSP is also announced by each of the members of active-activ= e pair or pairs. > =20 > However, PSN-LSP is a fully contained LSP that contain multiple TLV s tha= t needed to fully form a PSN. > =20 > This will increase the size of the LSP-DB of the campus and introduce X mo= re additional TLVs. > =20 > There can be many active-active pair/pairs in the network, and with this a= pproach we have so many more additional LSP in the network. > =20 > As we know size of LSP-DB is a major scaling issue and always want to keep= it as small as possible, where possible. > =20 > Lets also look at why PSN-LSP approach being proposed. It is to solve a po= ssible backward compatibility issue. > =20 > TRILL still in infancy and there are not many TRILL networks. So the back= ward compatibility is not a wide spread issue. Also affinity draft has backw= ard compatibility mode. > =20 > What we should look at is having a solution that help us to scale better a= s TRILL become widely deployed in Large data-centers/Enterprises where such a= ctive-active edge is widely used. > =20 > With PSN-LSP approach I think we are unnecessarily injecting additional LS= P and TLVs and making it more complicated and less scalable when we can solv= e with a single sub-TLV. Also Affinity TLV draft discuss backward compatibil= ity approach, in the event there older Rbridges. > =20 > Thanks > Tissa > =20 > From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn]=20 > Sent: Friday, January 13, 2012 8:17 PM > To: Janardhanan Pathangi Narasimhan > Cc: rbridge@postel.org; rbridge-bounces@postel.org; Tissa Senevirathne (ts= enevir) > Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on a= ctive-active edge and more > =20 >=20 > Hi Jana, Jon and Tissa,=20 >=20 > > I think your proposal is that form a tree rooted at RB1 and another tree= rooted at RB2. The tree rooted at RB1 would have RBV-RB1 link, =20 > > and similarly the tree rooted at RB2 would have RB2-RBV link. Hence you a= re forcing the affinity of RB1 or RB2 to RBV by placing the root on the RBri= dges themselves.=20 > > Is that correct?=20 >=20 > No, It didn't mean that the trees must rooted at RB1, RB2, respectively. I= t has no any needs of where the roots of these trees are. These trees are or= dinary trees calculated by all RBridges in TRILL campus wide.=20 >=20 > For example, there are 4 actually-calculated trees in TRILL campus, T1 thr= ough T4. T1 roots at RBi, T2 roots at RBj, T3 roots at RBm and T4 roots at R= Bn. If T1 and T2 are assigned to member RBridge RB1, and the rest trees to R= B2. The method used to assign trees to a member RBridge is the same as given= in Section 5.1 in draft CMT.=20 >=20 > In the below topology, Since RB1 knows it is a member RBridge of Rbridge G= roup RBv1 and that T1/T2 are assigned to it, RB1 can originate a pseudonode L= SP(even if it has not seen any neighbors in RBv by hellos) and advertize it i= n TRILL campus. This pseudonode LSP contains a Nickname sub-TLV where nickna= me of RBv1 is carried, and a Trees sub_TLV where the wanted-to-using tress(i= .e., T1 and T2) are carried, as well as a neighbor TLV where RB1 is the only= neighbor contained in this pseudonode LSP.=20 >=20 > After receiving this psuedonode LSP, another RBridge, e.g., RBx, knows t= he paths to RBv through RB1 on T1 and T2. Then RPF information for RBv1 can b= e calculated correctly by RBx on these two trees.=20 > RBx=20 > |=20 > Trill Campus=20 > | |=20 > +----------+ +------------+=20 > | RB1 | | RB2 |=20 > +----------+ + ------------+=20 > \ /=20 > \ /=20 > \ /=20 > ---------- -----------=20 > > | | < Port channel (LAG)=20 > | |=20 > +--------------------+=20 > | CE |=20 > +---------------------+=20 >=20 > Besides RBv1, If RB1joins another Rbridge Group RBv2, and T2/T3 are assign= ed to RB1, RB1 can originates another pseudonode LSP, where nickname of RBv2= and T2/T3 are carried in Nickname sub-TLV and Trees sub-TLV, respectively. A= fter receiving this LSP, RBx can knows path to RBv2 through RB1 on T2 and T3= . RPF check information can also calculated correctly by RBx on thes two tre= es.=20 >=20 > Similar things RB2 can do, and RPF check information can be calculated cor= rectly by RBx on the assigned trees=20 > =20 > > Yes, this mechanism would work, but would not scale up. For e.g. in the n= etwork, if we have 10 such pairs of RB, i.e. RB1-RB2 providing RBV1, RB3-RB4= providing RBV2,=20 > > and so on, then to ensure that RB1-RBV1, RB2-RBV1, RB3-RBV2, RB4-RBV2 an= d so on are present, we will have to minimum build 20 trees (10 pairs of RB)= .=20 > > This will not scale, while with affinity TLV irrespective of number of s= uch RB pairs which are providing such services we would need only two trees.= =20 >=20 > No, It does not require much more trees to build if using pseudonode LSP, i= nstead of affinity TLV, to notify other RBridges the affinity of RBv via RB= 1. It just needs to originate much more pseudonode LSPs if an Rbridge joins m= ore than one RBridge Group.=20 >=20 >=20 >=20 > Thanks, > Zhai Hongjun > """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" > Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation > No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 >=20 > Zhai Hongjun >=20 > Tel: +86-25-52877345 > Email: zhai.hongjun@zte.com.cn > """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" >=20 >=20 >=20 >=20 > Janardhanan Pathangi Narasimhan =20 > =E5=8F=91=E4=BB=B6=E4=BA=BA: rbridge-bounces@postel.org > 2012-01-13 21:48 >=20 > =E6=94=B6=E4=BB=B6=E4=BA=BA > "zhai.hongjun@zte.com.cn" , "Tissa Senevirathne = (tsenevir)" > =E6=8A=84=E9=80=81 > "rbridge@postel.org" , "rbridge-bounces@postel.org" > =E4=B8=BB=E9=A2=98 > Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-ac= tive edge and more > =20 >=20 >=20 >=20 > Hi Hongjun,=20 > =20 > I think your proposal is that form a tree rooted at RB1 and another tree r= ooted at RB2. The tree rooted at RB1 would have RBV-RB1 link, and similarly= the tree rooted at RB2 would have RB2-RBV link. Hence you are forcing the a= ffinity of RB1 or RB2 to RBV by placing the root on the RBridges themselves.= Is that correct?=20 > =20 > Yes, this mechanism would work, but would not scale up. For e.g. in the ne= twork, if we have 10 such pairs of RB, i.e. RB1-RB2 providing RBV1, RB3-RB4 p= roviding RBV2, and so on, then to ensure that RB1-RBV1, RB2-RBV1, RB3-RBV2, R= B4-RBV2 and so on are present, we will have to minimum build 20 trees (10 pa= irs of RB). This will not scale, while with affinity TLV irrespective of num= ber of such RB pairs which are providing such services we would need only tw= o trees.=20 > =20 > Thanks=20 > Jana=20 > =20 > =20 > From: rbridge-bounces@postel.org [mailto:rbridge-bounces@postel.org] On Be= half Of zhai.hongjun@zte.com.cn > Sent: Friday, January 13, 2012 10:35 AM > To: Tissa Senevirathne (tsenevir) > Cc: rbridge@postel.org; rbridge-bounces@postel.org > Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on a= ctive-active edge and more=20 > =20 >=20 > Hi Tissa=EF=BC=8C=20 >=20 > In the diagram you given, assume 4 distribution trees are acturally calcul= ated in TRILL campus, i.e., T1 through T4. T1 and T2 are assigned to RB1, T= 3 and T4 are assigned to RB2.=20 >=20 > Even if RB1 can not see RB2 by hellos, (I think that) RB1 can generate a p= seudonode LSP, Pseu-LSP-RB1, to announce the virtual RBridge (RBv) nickname= and the trees assigned to it, i.e, T1 and T2. In this pseudonode LSP, RB1= is the only one neighbor (or RB1 and the virtual RBridge RBv are the only t= wo neigbors) of this pseudonode. After receiving this pseudonode LSP, RBx= can know the path to pseudonode RBv through RB1 on T1 or T2, shown in the= following diagram.=20 >=20 > RBx=20 > |=20 > Trill Campus=20 > | |=20 > +----------+ +------------+=20 > | RB1 | | RB2 |=20 > +----------+ + ------------+=20 > \ =20 > / \ =20 > /RBv \ =20 > ---------=20 > scheme of T1 or T2=20 >=20 > RB1 uses Nickname Sub-TLV and Trees Sub-TLV (instead of the Affinity sub-T= LV) in Pseu-LSP-RB1, to contains the RBv's nickname and the assigned trees T= 1 and T2.=20 >=20 > RB2 also annouce similar informtion in its pseudonode LSP, then RBx can kn= ow the path to RBv through RB2 on T3 and T4.=20 >=20 > RBx=20 > |=20 > Trill Campus=20 > | |=20 > +----------+ +------------+=20 > | RB1 | | RB2 |=20 > +----------+ + ------------+=20 > \ /=20 > \ /=20 > \ /=20 > ---------- -----------=20 > > | | < Port channel (LAG)=20 > | |=20 > +--------------------+=20 > | CE |=20 > +---------------------+=20 >=20 >=20 >=20 >=20 > Thanks, > Zhai Hongjun > """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" > Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation > No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 >=20 > Zhai Hongjun >=20 > Tel: +86-25-52877345 > Email: zhai.hongjun@zte.com.cn > """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" >=20 >=20 > "Tissa Senevirathne (tsenevir)" > 2012-01-13 12:21 >=20 > =20 > =E6=94=B6=E4=BB=B6=E4=BA=BA > > =E6=8A=84=E9=80=81 > , > =E4=B8=BB=E9=A2=98 > RE: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-ac= tive edge and more >=20 > =20 > =20 >=20 >=20 >=20 >=20 >=20 > Hi Hongjun=20 > =20 > I am not quite clear with the way you are proposing to use assigned nickna= mes in the pseudonode LSP.=20 > =20 > Can you please us the diagram below and explain how your proposal will be u= sed.=20 > =20 > CE means in the following diagram is an 802.1D device that is attached to R= B1 and RB2 through Pt-Pt links and treated as a port channel from CE stand p= oint.=20 > =20 > RBx=20 > |=20 > Trill Campus=20 > | |=20 > +----------+ +------------+=20 > | RB1 | | RB2 |=20 > +----------+ + ------------+=20 > \ /=20 > \ /=20 > \ /=20 > ---------- -----------=20 > > | | < Port channel (LAG)=20 > | |=20 > +--------------------+=20 > | CE |=20 > +---------------------+=20 > =20 > =20 > From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn]=20 > Sent: Thursday, January 12, 2012 7:59 PM > To: Tissa Senevirathne (tsenevir) > Cc: rbridge@postel.org; rbridge-bounces@postel.org > Subject: RE: [rbridge] Coordinated Multicast Trees to solve RPF issues on a= ctive-active edge and more=20 > =20 >=20 > Hi Tissa,=20 >=20 > I have read your draft-tissa-trill-cmt-00.txt with great interests. In th= is draft, a new TLV, Affinity Sub-TLV, is introduced to give a member RBdige= of a virtual RBridge group much flexibity in describing the virtual RBridge= nickname and specifying the path of association to specific distribution t= ree(S). However, this new TLV causes some backward compatibilty problems be= tween pre Affinity sub-TLV RBridges and new RBridges. Even if there is only o= ne pre Affinity sub-TLV RBridge in TRILL network,the RPF check for virtual R= bridge will fail on this RBridge. >=20 > Is the Affinity Sub-TLV necessary for a member RBridge to announce the vir= tual Rbridge nickname and the specific distribution trees? Maybe it is not.= =20 >=20 > In a given vritual group, each member Rbridge can advertise a specific ps= eudonode-LSP to annouce the virtual RBridge nickname and the trees assigned t= o it.The nickname and the assigned trees are contained in the given Nicknam= e Sub-TLV and Trees Sub-TLV in RFC6326. This pseudonode-LSP represents a spe= cial virtual link, on which there is only one RBridge, i.e., the RBridge ad= vertising this LSP. Only if different member Rbridge is assigned different t= ree(s), RPF check information for the virtual Rbrigde in different trees can= be correctly calculated on all the Rbridges in TRILL network, then the memb= er RBridge can safely use the virtual Rbridge nickname to do the necessary T= RILL-encapsultion on received native frames.=20 >=20 > Therefore, backward compatibilty problems, caused by Affinity sub-TLV, is r= emoved, while the similar flexibilty of Affinity sub-TLV remains.=20 >=20 >=20 > Thanks, > Zhai Hongjun > """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" > Protocol Development Dept.VI, Central R&D Institute, ZTE Corporation > No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P.R.China, 210012 >=20 > Zhai Hongjun >=20 > Tel: +86-25-52877345 > Email: zhai.hongjun@zte.com.cn > """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" >=20 > "Tissa Senevirathne (tsenevir)" =20 > =E5=8F=91=E4=BB=B6=E4=BA=BA: rbridge-bounces@postel.org > 2012-01-06 10:11 >=20 > =20 > =20 >=20 > =E6=94=B6=E4=BB=B6=E4=BA=BA > > =E6=8A=84=E9=80=81 > =E4=B8=BB=E9=A2=98 > [rbridge] Coordinated Multicast Trees to solve RPF issues on active= -active edge and more >=20 >=20 > =20 >=20 > =20 >=20 > =20 >=20 >=20 >=20 >=20 >=20 > Dear All=20 >=20 > We have published draft-tissa-trill-cmt-00.txt, in this document we presen= t a flexible framework to associate child RBridges to different parent RBRid= ges for RPF purpose.=20 >=20 > Active-active forwarding at the TRILL edge is a very important feature. Re= presentation of the active-active sub system with a single virtual RBRidge i= s a common practice to achieve load balancing and to avoid MAC flip flop. Ho= wever, use of virtual RBridge lead to RPF failures. In this document we prov= ide a solution to address the RPF failures. Please review and share comments= .=20 >=20 > ID can be found in URL: http://www.ietf.org/id/draft-tissa-trill-cmt-00.tx= t=20 >=20 > Summary:=20 >=20 > Filename: draft-tissa-trill-cmt=20 > Revision: 00=20 > Title: Coordinated Multicast Trees (CMT)for TRILL=20 > Creation date: 2012-01-05=20 > WG ID: Individual Submission=20 > Number of pages: 14=20 >=20 > Abstract:=20 > TRILL facilitates loop free connectivity to non TRILL legacy=20 > networks via choice of an Appointed Forwarder for set of VLANs.=20 > Appointed Forwarder provides VLAN level load sharing with active-=20 > standby model. Mission critical operations such as High Performance=20 > Data Centers require active-active load sharing model. Active-Active=20 > load sharing model can be accomplished by representing any given non=20 > TRILL legacy network with a single virtual RBridge. Virtual=20 > representation of the non-TRILL legacy network with a single RBridge=20 > poses serious challenges in multi-destination RPF calculations. This=20 > document presents the required enhancements to build Coordinated=20 > Multicast Trees (CMT) within the TRILL campus. CMT provides=20 > flexibility to RBridges to select desired path of association to a=20 > given distribution tree.=20 >=20 >=20 > Thanks=20 > Tissa_______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge >=20 > =20 > --------------------------------------------------------=20 > ZTE Information Security Notice: The information contained in this mail is= solely property of the sender's organization. This mail communication is co= nfidential. Recipients named above are obligated to maintain secrecy and are= not permitted to disclose the contents of this communication to others.=20 > This email and any files transmitted with it are confidential and intended= solely for the use of the individual or entity to whom they are addressed. I= f you have received this email in error please notify the originator of the m= essage. Any views expressed in this message are those of the individual send= er.=20 > This message has been scanned for viruses and Spam by ZTE Anti-Spam system= .=20 > =20 > --------------------------------------------------------=20 > ZTE Information Security Notice: The information contained in this mail is= solely property of the sender's organization. This mail communication is co= nfidential. Recipients named above are obligated to maintain secrecy and are= not permitted to disclose the contents of this communication to others.=20 > This email and any files transmitted with it are confidential and intended= solely for the use of the individual or entity to whom they are addressed. I= f you have received this email in error please notify the originator of the m= essage. Any views expressed in this message are those of the individual send= er.=20 > This message has been scanned for viruses and Spam by ZTE Anti-Spam system= ._______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge >=20 >=20 > =20 > -------------------------------------------------------- > ZTE Information Security Notice: The information contained in this mail is= solely property of the sender's organization. This mail communication is co= nfidential. Recipients named above are obligated to maintain secrecy and are= not permitted to disclose the contents of this communication to others. > This email and any files transmitted with it are confidential and intended= solely for the use of the individual or entity to whom they are addressed. I= f you have received this email in error please notify the originator of the m= essage. Any views expressed in this message are those of the individual send= er. > This message has been scanned for viruses and Spam by ZTE Anti-Spam system= . > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge --Apple-Mail-C28A8C9A-C1F4-40BD-BCA5-A49258564CCB Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8

Just to add= a few data points

As of now only Cisco and Brocade= have been shipping a "TRILL based" product 

B= y late 2011 numbers of units in production networks
Cisco >500
Brocade >300 

So w= ith growth let's assume 1000-1200 total.

= However neither Brocade or Ciscos solution is pure openTRILL. Both have work= to do on that front.

As I understand it = Force10 & Extreme will ship soon but have not yet.

In addition the affinity-TLV does not require a hardware change= for anyone (that I am aware of). And since those ~1000 today wil= l need some software updates anyway to become compliant, backwards comparabi= lity is essentially a non issue for the affinity TLV.

If the PSN-LSP solution increased scalability, or added fu= nctionality then it (or anything else that does) deserves careful considerat= ion.  

PSN-LSP seems to only gain something t= hat isn't hyper critical in this case and adds scaling concerns.

I often have to alleviate concerns that TRILL contains scaling issue= s in its use of IS-IS, I don't wish to add fuel to that fire. 

My 0x2 bits

On Jan 14, 2012, at 7:04 AM, "Tissa= Senevirathne (tsenevir)" <tsenevir= @cisco.com> wrote:

=
=

Hi Hongjun

 

Technically speaking what you are prop= osing is similar to Affinity TLV approach. With the difference of using Pseu= donode LSP instead of the Affinity TLV .

 

Main issue with PSN-LSP approach is the s= cale, Let me explain that in bit more details.

 

Affinity TLV is a single sub-TLV a= nnounced by each of the members of active-active pair or pairs.

 <= /span>

Similarly PSN-LSP= is also announced by each of the members of active-active pair or pairs.

&nb= sp;

However= , PSN-LSP is a fully contained LSP that contain  multiple TLV s that ne= eded to fully form a PSN.

 

This will increase the size of the LSP-DB of the campus a= nd introduce X more additional TLVs.

 

There can be many  active-active pair/p= airs in the network, and with this approach we have so many more additional L= SP in the network.

 

As we know size of LSP-DB is a major scaling issue and always wa= nt to keep it as small as possible, where possible.

 

Lets also look at why PSN-LSP a= pproach being proposed. It is to solve a possible backward compatibility iss= ue.

 

T= RILL still in infancy and there are not many TRILL networks.  So the ba= ckward compatibility is not a wide spread issue. Also affinity draft has bac= kward compatibility mode.

 

What we should look at is having a solution that help us t= o scale better as TRILL become widely deployed in Large data-centers/Enterpr= ises where such active-active edge is widely used.

 

With PSN-LSP approach I think w= e are unnecessarily injecting additional LSP and TLVs and making it more com= plicated and less scalable when we can solve with a single sub-TLV. Also Aff= inity TLV draft discuss backward compatibility approach, in the event there o= lder Rbridges.

 

Thanks

Tissa

 

From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zte.com.cn]
Sent:= Friday, January 13, 2012 8:17 PM
To: Janardhanan Pathangi Nar= asimhan
Cc: rbridge@postel.o= rg; rbridge-bounces@postel= .org; Tissa Senevirathne (tsenevir)
Subject: Re: [rbridge] Coo= rdinated Multicast Trees to solve RPF issues on active-active edge and more<= o:p>

 


Hi Jana, Jon a= nd Tissa,

> I think your proposal is that form a= tree rooted at RB1 and another tree rooted at RB2. The tree rooted at RB1 w= ould have RBV-RB1 link,  
> and similarly the t= ree rooted at RB2 would have RB2-RBV link. Hence you are forcing the affinit= y of RB1 or RB2 to RBV by placing the root on the RBridges themselves.
> Is that correct?

No, It didn't= mean that the trees must rooted at RB1, RB2, respectively.  It has no a= ny needs of where the roots of these trees are. These trees are ordinary tre= es calculated by all RBridges in TRILL campus wide.

For example, there are 4 actually-calculated trees in TRILL campus, T1 thro= ugh T4. T1 roots at RBi, T2 roots at RBj, T3 roots at RBm and T4 roots at RB= n. If T1 and T2 are assigned to member RBridge RB1, and the rest trees to RB= 2. The method used to assign trees to a member RBridge is the same as given i= n Section 5.1 in draft CMT.

In the below topology, S= ince RB1 knows it is a member RBridge of Rbridge Group RBv1 and that T1/T2 a= re assigned to it, RB1 can originate a pseudonode LSP(even if it has not see= n any neighbors in RBv by hellos) and advertize it in TRILL campus. This pse= udonode LSP contains a Nickname sub-TLV where nickname of RBv1 is carried, a= nd a Trees sub_TLV where the wanted-to-using tress(i.e., T1 and T2) are carr= ied, as well as a neighbor TLV where RB1 is the only neighbor contained in t= his pseudonode LSP.

After receiving this  psue= donode LSP, another RBridge, e.g., RBx,  knows the paths to RBv through= RB1 on T1 and T2. Then RPF information for RBv1 can be calculated correctly= by RBx on these two trees.
  &nbs= p;                     &nb= sp;        RBx
&nbs= p;                     &nb= sp;             |
                  &nbs= p;       Trill Campus
&n= bsp;             |        =                      = ;                |
   +----------+         &n= bsp;                     &= nbsp;   +------------+
  &nbs= p;|  RB1     |             &nbs= p;                    | &n= bsp;RB2       |
  &= nbsp;+----------+                 &n= bsp;                + ------------+<= /span> <= /span>
         \ &nbs= p;                     &nb= sp;                     &n= bsp;    /
     = ;     \                 &n= bsp;                     &= nbsp;       /
  &nb= sp;        \             &= nbsp;                     &= nbsp;        /
&nbs= p;            ----------       &= nbsp;       -----------
=                      = >   |             |  <  P= ort channel (LAG)
      &= nbsp;                   |  = ;           |
=                    +------= --------------+
      &n= bsp;           |    CE     &nbs= p;              |
                 = +---------------------+

Besides RBv1, If RB1joins a= nother Rbridge Group RBv2, and T2/T3 are assigned to RB1, RB1 can originates= another pseudonode LSP, where nickname of RBv2 and T2/T3 are carried in Nic= kname sub-TLV and Trees sub-TLV, respectively. After receiving this LSP, RBx= can knows path to RBv2 through RB1 on T2 and T3. RPF check information can a= lso calculated correctly by RBx on thes two trees.

= Similar things RB2 can do, and RPF check information can be calculated corre= ctly by RBx on the assigned trees
 
> Yes, this mechanism would work, but would not scale up. For e.g.= in the network, if we have 10 such pairs of RB, i.e. RB1-RB2 providing RBV1= , RB3-RB4 providing RBV2,
> and so on, then to ensur= e that RB1-RBV1, RB2-RBV1, RB3-RBV2, RB4-RBV2 and so on are present, we will= have to minimum build 20 trees (10 pairs of RB).
> T= his will not scale, while with affinity TLV irrespective of number of such R= B pairs which are providing such services we would need only two trees.

No, It does not require much more trees to build if usi= ng pseudonode LSP, instead of affinity TLV,  to notify other RBridges t= he affinity of RBv via RB1. It just needs to originate much more pseudonode L= SPs if an Rbridge joins more than one RBridge Group.

=

Thanks,
Zhai Hongjun
"""""""""""""""""""""""""""""""""""""""""= """""""""""""""""""""""""""""
Protocol Development Dept.VI, Central R&= ;D Institute, ZTE Corporation
No. 68, Zijinghua Road, Yuhuatai District, N= anjing, P.R.China, 210012

Zhai Hongjun

Tel: +86-25-52877345Email: zhai.hongjun@zte.com.cn
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""= "



<= td width=3D"36%" valign=3D"top" style=3D"width:36.0%;padding:.75pt .75pt .75= pt .75pt">

Janardhanan Pathangi Narasimhan= <jana@force10networks.com>
=E5=8F=91=E4=BB=B6=E4=BA=BA:  rbridge-bounces@postel.org

2012-01-13 21:48

<= /tr>

=E6=94=B6=E4=BB=B6=E4= =BA=BA

"zhai.hongjun@zte.com.cn" <zhai.hongjun@zte.com.cn>, "Tissa Senevirathne  = ;      (tsenevir)" <= tsenevir@cisco.com>

=E6=8A=84=E9=80=81

"rbridge@postel.org" <rbridge@postel.org>, "rbridge-bounces@postel.org" <rbridge-bounces@postel.org> =

<= span lang=3D"ZH-CN" style=3D"font-size:7.5pt">=E4=B8=BB=E9=A2=98=

=

Re: [rbridge] Coordinated Multicast Trees to= solve RPF issues on active-active edge and more

 



<= br>Hi Hongjun,
 
I think your proposal is that form a tree roo= ted at RB1 and another tree rooted at RB2. The tree rooted at RB1 would have= RBV-RB1 link,  and similarly the tree rooted at RB2 would have RB2-RBV= link. Hence you are forcing the affinity of RB1 or RB2 to RBV by placing th= e root on the RBridges themselves. Is that correct?
&nbs= p;
Yes, this mechanism would work, but would not scale u= p. For e.g. in the network, if we have 10 such pairs of RB, i.e. RB1-RB2 pro= viding RBV1, RB3-RB4 providing RBV2, and so on, then to ensure that RB1-RBV1= , RB2-RBV1, RB3-RBV2, RB4-RBV2 and so on are present, we will have to minimu= m build 20 trees (10 pairs of RB). This will not scale, while with affinity T= LV irrespective of number of such RB pairs which are providing such services= we would need only two trees.
 
Thanks
Jana
&nb= sp;
 
From:= rbridge= -bounces@postel.org [mailto:rbridge-bounces@postel.org] On Behalf Of <= /b>zhai.hongjun@zte.com.cn=
Sent: Friday, January 13, 2012 10:35 AM
To: Tissa Senevira= thne (tsenevir)
Cc: rbridge@= postel.org; rbridge-bounce= s@postel.org
Subject: Re: [rbridge] Coordinated Multicast Tree= s to solve RPF issues on active-active edge and more
 

Hi Tissa=EF=BC=8C
<= br>In the diagram you given, assume 4 distribution trees are acturally calcu= lated in TRILL campus, i.e., T1 through T4.  T1 and T2 are assigned to R= B1, T3 and T4 are assigned to RB2.

= Even if RB1 can not see  RB2 by hellos, (I think that) RB1 can generate= a pseudonode LSP, Pseu-LSP-RB1,  to announce the virtual RBridge (RBv)= nickname and the trees assigned to it, i.e, T1 and T2.  In this pseudo= node LSP,  RB1 is the only one neighbor (or RB1 and the virtual RBridge= RBv are the only two neigbors)  of this pseudonode.  After receiv= ing this pseudonode LSP,  RBx can  know the path to  pseudono= de RBv through RB1 on T1 or T2, shown in the following diagram.

             =                    RBx
           =                      = ;   |
        &= nbsp;                 Trill Campus <= /span>
           = ;   |                   &n= bsp;                     &= nbsp;    |
   +----= ------+                    = ;               +------------+
   |  RB1     |   &= nbsp;                     &= nbsp;        |  RB2       | <= span style=3D"font-size:10.0pt;font-family:"Calibri","sans-se= rif";color:#1F497D">
   +----------+       &= nbsp;                     &= nbsp;    + ------------+
&nbs= p;        \             &n= bsp;                     &= nbsp;              
    &nb= sp;    /  \               &= nbsp;                     &= nbsp;      
   = ;    /RBv \                = ;              
      -= --------
        &n= bsp;      scheme of T1 or T2

RB1 uses Nickname Sub-TLV and Trees Sub-TLV (instead of the Affinity sub-T= LV) in Pseu-LSP-RB1, to contains the RBv's ni= ckname and the assigned trees T1 and T2.
=
RB2 also annouce similar informtion in its pseudonode LSP, then RBx can k= now the path to RBv through RB2 on T3 and T4.

                  &n= bsp;              RBx
                &nbs= p;                   | <= span style=3D"font-size:10.0pt;font-family:"Calibri","sans-se= rif";color:#1F497D">
             = ;             Trill Campus
              |   &n= bsp;                     &= nbsp;                    |= =
   +----------+    = ;                     &nbs= p;         +------------+
   |  RB1     |         &= nbsp;                     &= nbsp;  |  RB2       |
   +----------+             &= nbsp;                    += ------------+
      &nb= sp;  \                   &= nbsp;                     &= nbsp;        /
&nbs= p;         \             &= nbsp;                     &= nbsp;           / =
           \         &= nbsp;                     &= nbsp;            /
             ----------   &= nbsp;           -----------
                 =    >   |             | &nbs= p;<  Port channel (LAG)
  &= nbsp;                     &= nbsp; |             |
                  &= nbsp;+--------------------+
  &nbs= p;               |    CE  =                  |
              &= nbsp;   +---------------------+




Th= anks,
Zhai Hongjun
"""""""""""""""""""""""""""""""""""""""""""""""""""= """""""""""""""""""
Protocol Development Dept.VI, Central R&D Institu= te, ZTE Corporation
No. 68, Zijinghua Road, Yuhuatai District, Nanjing, P= .R.China, 210012

Zhai Hongjun

Tel: +86-25-52877345
Email: <= a href=3D"mailto:zhai.hongjun@zte.com.cn">zhai.hongjun@zte.com.cn
"""= """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

=

 

"Tissa Senevirathne (tsenevir)" <tsenevir@cisco.com>

2012-01-13 12:21


 

 <= /p>

=E6=94=B6=E4=BB=B6= =E4=BA=BA

<zhai.hongjun@zte.com.cn= >

=E6=8A=84=E9=80= =81

<rbridge@postel.org>, <rbridge-bounces@postel.org>

=E4=B8=BB=E9=A2=98

RE: [rbridge] Coordinated Multicast Trees to solve RPF iss= ues on active-active edge and more

=





Hi Hongjun
 
I am not quite clear with the way you are proposin= g to use assigned nicknames in the pseudonode LSP.
 
Can you please us the= diagram below and explain how your proposal will be used.
 <= span style=3D"font-size:10.0pt;font-family:"Calibri","sans-se= rif";color:#1F497D">
CE means in the following diagram is an 802.1D d= evice that is attached to RB1 and RB2 through Pt-Pt links and treated as a p= ort channel from CE stand point.
 =
          &nbs= p;                     &nb= sp; RBx
        &nb= sp;                     &n= bsp;     |
    &nbs= p;                     Tri= ll Campus
        &= nbsp;     |                = ;                     &nbs= p;        |
  &= nbsp;+----------+                 &n= bsp;                 +------------+<= /span> <= /span>
   |  RB1     |=                      = ;            |  RB2       |= =
   +----------+    = ;                     &nbs= p;        + ------------+
         \          = ;                     &nbs= p;                  /
          \   &nbs= p;                     &nb= sp;                     /<= /span> <= /span>
           = ;\                     &nb= sp;                     &n= bsp;/
         = ;    ----------               -= ----------
        &= nbsp;            >   |     &= nbsp;       |  <  Port channel (LAG)
              &= nbsp;           |          = ;   |
        &= nbsp;          +--------------------+
              &nbs= p;   |    CE              =      |
    &n= bsp;             +---------------------+
 
<= /span>&= nbsp;
From: zhai.hongjun@zte.com.cn [mailto:zhai.hongjun@zt= e.com.cn]
Sent: Thursday, January 12, 2012 7:59 PM
To: T= issa Senevirathne (tsenevir)
Cc: rbridge@postel.org; r= bridge-bounces@postel.org
Subject: RE: [rbridge] Coordinated M= ulticast Trees to solve RPF issues on active-active edge and more
 =

Hi Tissa,

I have read y= our draft-tissa-trill-cmt-00.txt with great interests.  In this draft, a= new TLV, Affinity Sub-TLV, is introduced to give a member RBdige of a virtu= al RBridge group much flexibity in describing the virtual RBridge nickname a= nd  specifying the path of association to specific distribution tree(S)= .  However, this new TLV causes some backward compatibilty problems bet= ween pre Affinity sub-TLV RBridges and new RBridges. Even if there is only o= ne pre Affinity sub-TLV RBridge in TRILL network,the RPF check for virtual R= bridge will fail on this RBridge.

Is the Affinity Sub-TLV necessary f= or a member RBridge to announce the virtual Rbridge nickname and  the s= pecific distribution trees? Maybe it is not.

In a= given vritual group, each  member Rbridge can advertise a specific pse= udonode-LSP to annouce the virtual RBridge nickname and the trees assigned t= o it.The nickname and the assigned trees are contained in  the given Ni= ckname Sub-TLV and Trees Sub-TLV in RFC6326. This pseudonode-LSP represents a= special virtual link, on which there is only one RBridge, i.e.,  the R= Bridge advertising this LSP.  Only if different member Rbridge is assig= ned different tree(s), RPF check information for the virtual Rbrigde in diff= erent trees can be correctly calculated on all the Rbridges in TRILL network= , then the member RBridge can safely use the virtual Rbridge nickname to do t= he necessary TRILL-encapsultion on  received native frames.

Therefore, backward compatibilty problems, caused by Affinit= y sub-TLV, is removed, while the similar flexibilty of Affinity sub-TLV rema= ins.


Thanks,
Zhai Hongjun
"""""""""""""""= """""""""""""""""""""""""""""""""""""""""""""""""""""""
Protocol Developm= ent Dept.VI, Central R&D Institute, ZTE Corporation
No. 68, Zijinghua= Road, Yuhuatai District, Nanjing, P.R.China, 210012

Zhai Hongjun
=
Tel: +86-25-52877345
Email: zhai.hongjun@zte.com.cn
"""""""""""""""""""""""""""""""""""""""""""= """"""""""""""""""""""""""""

<= tbody>

"Tissa Senevirathne (= tsenevir)" <tsenevir@cisco.com&= gt;
=E5=8F=91=E4=BB=B6=E4=BA=BA:  rbridge-bounces@postel.org

2012-01-06 10:11

 

 

=E6=94=B6=E4= =BB=B6=E4=BA=BA

= <rbridge@postel.org>= ;

=E6=8A=84=E9=80=81=

=E4=B8=BB=E9=A2=98

[rbridge] Coordinated Multicast Trees to s= olve RPF issues on        active-active edge and more



 

&n= bsp;

 

=





= Dear All

We have published draft-tissa-trill-cmt-= 00.txt, in this document we present a flexible framework to associate child R= Bridges to different parent RBRidges for RPF purpose.

Active-active forwarding at the TRILL edge is a very important feature.= Representation of the active-active sub system with a single virtual RBRidg= e is a common practice to achieve load balancing and to avoid MAC flip flop.= However, use of virtual RBridge lead to RPF failures. In this document we p= rovide a solution to address the RPF failures. Please review and share comme= nts.

ID can be found in URL: http://www.ie= tf.org/id/draft-tissa-trill-cmt-00.txt

Summar= y:

File= name:   draft-tissa-trill-cmt
Revision:   00
Title:           &= nbsp;Coordinated Multicast Trees (CMT)for TRILL
Creation date:    2012-01-05<= /span> <= /span>
WG ID:  = ;          Individual Submission
Number of pages: 14

Abstract:
 TRILL facilitat= es loop free connectivity to non TRILL legacy
 networks via choice of an Appointed= Forwarder for set of VLANs.
 Appointed Forwarder provides VLAN level load sharing= with active- <= br> standby model. Mission critical operations such as High Performance= =
 Data= Centers require active-active load sharing model. Active-Active
 load sharing mod= el can be accomplished by representing any given non
 TRILL legacy network with a s= ingle virtual RBridge. Virtual
 representation of the non-TRILL legacy network wit= h a single RBridge
 poses serious challenges in multi-destination RPF calculations= . This
&nbs= p;document presents the required enhancements to build Coordinated
 Multicast Tree= s (CMT) within the TRILL campus. CMT provides
 flexibility to RBridges to select d= esired path of association to a
 given distribution tree.


Thanks
Tissa_________________= ______________________________
rbridge mailing list
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http://mailman.postel.org/mailman/listinfo/= rbridge

 
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= --Apple-Mail-C28A8C9A-C1F4-40BD-BCA5-A49258564CCB-- --===============1297817319== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============1297817319==-- From rbridge-bounces@postel.org Sun Jan 15 18:47:24 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BD2C321F84FF for ; Sun, 15 Jan 2012 18:47:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -97.438 X-Spam-Level: X-Spam-Status: No, score=-97.438 tagged_above=-999 required=5 tests=[AWL=-2.200, BAYES_50=0.001, HTML_MESSAGE=0.001, J_CHICKENPOX_25=0.6, J_CHICKENPOX_34=0.6, J_CHICKENPOX_73=0.6, J_CHICKENPOX_75=0.6, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, MIME_HTML_MOSTLY=0.001, RCVD_DOUBLE_IP_LOOSE=0.76, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100, WEIRD_QUOTING=1.396] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 46pVtGh7LYiD for ; Sun, 15 Jan 2012 18:47:22 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 3BFF121F84FA for ; Sun, 15 Jan 2012 18:47:22 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0G2Injj025627; Sun, 15 Jan 2012 18:18:51 -0800 (PST) Received: from mx7.zte.com.cn (mx7.zte.com.cn [202.103.147.169]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0G2IG32025291; Sun, 15 Jan 2012 18:18:26 -0800 (PST) Received: from [10.30.3.20] by [192.168.168.15] with StormMail ESMTP id 4315.4259017472; Mon, 16 Jan 2012 10:18:14 +0800 (CST) Received: from notes_smtp.zte.com.cn ([10.30.1.239]) by mse01.zte.com.cn with ESMTP id q0G2Hu2Z092007; Mon, 16 Jan 2012 10:17:56 +0800 (GMT-8) (envelope-from zhai.hongjun@zte.com.cn) In-Reply-To: <344037D7CFEFE84E97E9CC1F56C5F4A56559B6@xmb-sjc-214.amer.cisco.com> To: "Tissa Senevirathne (tsenevir)" MIME-Version: 1.0 X-KeepSent: E894F71A:BAAA2BD5-48257987:000A3915; type=4; name=$KeepSent X-Mailer: Lotus Notes Release 6.5.6 March 06, 2007 Message-ID: From: zhai.hongjun@zte.com.cn Date: Mon, 16 Jan 2012 10:17:55 +0800 X-MIMETrack: Serialize by Router on notes_smtp/zte_ltd(Release 8.5.1FP4|July 25, 2010) at 2012-01-16 10:17:57, Serialize complete at 2012-01-16 10:17:57 X-MAIL: mse01.zte.com.cn q0G2Hu2Z092007 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: zhai.hongjun@zte.com.cn Cc: rbridge@postel.org, rbridge-bounces@postel.org, Janardhanan Pathangi Narasimhan Subject: Re: [rbridge] Coordinated Multicast Trees to solve RPF issues on active-active edge and more X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." 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c3RlbS4NCjwvcHJlPg== --=_alternative 000CC6EC48257987_=-- --===============0171771546== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0171771546==-- From rbridge-bounces@postel.org Mon Jan 16 14:24:22 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 30A8821F86AF for ; Mon, 16 Jan 2012 14:24:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.818 X-Spam-Level: X-Spam-Status: No, score=-105.818 tagged_above=-999 required=5 tests=[AWL=0.781, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ksFHvoGbClDC for ; Mon, 16 Jan 2012 14:24:21 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id A049421F86A9 for ; Mon, 16 Jan 2012 14:24:21 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0GM6D9P014194; Mon, 16 Jan 2012 14:06:14 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0GM5vm5014161 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Mon, 16 Jan 2012 14:06:07 -0800 (PST) Received: by lahg1 with SMTP id g1so3300684lah.39 for ; Mon, 16 Jan 2012 14:05:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:from:date:message-id:subject:to:content-type :content-transfer-encoding; bh=OWxXxfSF/Jk42P3Yxeyudq7n+fJSGWOjbtr/B3KqYG0=; b=EdQJz8dF/KiX45m+JkO0pIFQdweJaGdprGNbwHlbG1Xwj109iE3j727MFVC9VbYWTR klgNsiluZfunICe8PgqQ1Rex7wTOvlL+cdVGCi8m96DUQ6gqrlk9f+FwNCxC55Scxa4g MCmaZEDojZPw5C9wy8cOuWvhq5JXg+lxuK4R4= Received: by 10.152.114.103 with SMTP id jf7mr7010759lab.22.1326751556668; Mon, 16 Jan 2012 14:05:56 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.100.131 with HTTP; Mon, 16 Jan 2012 14:05:35 -0800 (PST) From: Donald Eastlake Date: Mon, 16 Jan 2012 17:05:35 -0500 Message-ID: To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0GM5vm5014161 Subject: [rbridge] Tweaks to draf-ietf-trill-rbridge-channel X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Unless there is some objection, I'd like to update draft-ietf-trill-rbridge-channel-03 for the following: - addition of a critical (as well as the previous non-critical) RBridge Channel Alert Flag (see draft-ietf-trill-rbridge-extension-02) - change of the CFI bit into the DEI bit (see draft-eastlake-trill-rbridge-clear-correct-03) - change in author info Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Tue Jan 17 23:34:34 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7C79811E80AD for ; Tue, 17 Jan 2012 23:34:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.598 X-Spam-Level: X-Spam-Status: No, score=-6.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DRcbzJ3-a6QX for ; Tue, 17 Jan 2012 23:34:33 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id B388811E80A3 for ; Tue, 17 Jan 2012 23:34:33 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0I7NEcF021727; Tue, 17 Jan 2012 23:23:15 -0800 (PST) Received: from mail-bk0-f52.google.com (mail-bk0-f52.google.com [209.85.214.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0I7Mis5021681 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Tue, 17 Jan 2012 23:22:54 -0800 (PST) Received: by bkbzt4 with SMTP id zt4so3518978bkb.39 for ; Tue, 17 Jan 2012 23:22:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=Th84sEE8pwIF1nPZqO/kF4Bo/dfiag7FVWh/mTgS+Mg=; b=huuMJGhb6zo6JDUZUBXTBluGXMhCP9t12SO8IYWzEuhg0JkUHLJDhmrw9aGL7rpY4M Ywb8uhfDVn4WFt22myH2unT0G8UQNHtPnSNjH6aU15uNuJCGEL0wIJyRzRpAFox2C/HR DhPb95EBvP8BOxzIyS+8w/PP5Jeh3z3QANlDE= MIME-Version: 1.0 Received: by 10.204.152.216 with SMTP id h24mr8197910bkw.15.1326871364030; Tue, 17 Jan 2012 23:22:44 -0800 (PST) Received: by 10.204.128.66 with HTTP; Tue, 17 Jan 2012 23:22:43 -0800 (PST) Date: Wed, 18 Jan 2012 12:52:43 +0530 Message-ID: From: gururam m To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: mgururam@gmail.com Subject: [rbridge] Special VLANs and Flags Sub-TLV query.. X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============2061011336==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============2061011336== Content-Type: multipart/alternative; boundary=0015175cdf3850d10e04b6c850e5 --0015175cdf3850d10e04b6c850e5 Content-Type: text/plain; charset=ISO-8859-1 Hi, In RFC 6326 the special VLANs and Flags Sub-TLV has "Sender Nickname" filed. If an RBridge has single nickname then that will be included in the "Sender Nickname" field. But what if the RBridge supports multiple nicknames let us say 4 of them. Then which one of the 4 nicknames is sent in the "Sender Nickname" field in the above sub-TLV. Regards Ram --0015175cdf3850d10e04b6c850e5 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi,
=A0=A0 =A0=A0 In RFC 6326 the special VLANs and Flags Sub-TLV has &q= uot;Sender Nickname" filed. If an RBridge has single nickname then tha= t will be included in the "Sender Nickname" field. But what if th= e RBridge supports multiple nicknames let us say 4 of them. Then which one = of the 4 nicknames is sent in the "Sender Nickname" field=A0 in t= he above sub-TLV.

Regards
Ram

--0015175cdf3850d10e04b6c850e5-- --===============2061011336== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============2061011336==-- From rbridge-bounces@postel.org Wed Jan 18 01:15:40 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D1C0A21F8783 for ; Wed, 18 Jan 2012 01:15:40 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.821 X-Spam-Level: X-Spam-Status: No, score=-105.821 tagged_above=-999 required=5 tests=[AWL=0.778, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id aPEZrI9WEkg8 for ; Wed, 18 Jan 2012 01:15:40 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 4969521F8585 for ; Wed, 18 Jan 2012 01:15:40 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0I8toup005941; Wed, 18 Jan 2012 00:55:50 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0I8t8us005888 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Wed, 18 Jan 2012 00:55:18 -0800 (PST) Received: by lahg1 with SMTP id g1so4924917lah.39 for ; Wed, 18 Jan 2012 00:55:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=AZiQrLOHE08yhsgmp2KuYtD0aj5kwRfjz0JuwjSqU9I=; b=QnFvNDuBgCJpqwGyVcGVy0EpuU1uA9Oy2NH43dE53vkKmBvbVpOgbg5UTteDRAdk/h VUK81ebo3T5bK18DuQ/ixuHuO4GAWbnJ7C/4sEaGR8CAtA2x61YvDWru8bej+FzlNVT2 jS6e787Rr6Yq9FVXKm/MzeYtZ2xbVv9DBAe3Q= Received: by 10.112.44.101 with SMTP id d5mr4998455lbm.40.1326876907351; Wed, 18 Jan 2012 00:55:07 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.100.131 with HTTP; Wed, 18 Jan 2012 00:54:46 -0800 (PST) In-Reply-To: References: From: Donald Eastlake Date: Wed, 18 Jan 2012 03:54:46 -0500 Message-ID: To: gururam m X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0I8t8us005888 Cc: rbridge@postel.org Subject: Re: [rbridge] Special VLANs and Flags Sub-TLV query.. X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Hi, It is an implementation choice. I can't off hand see any reason why it would make any difference. The only uses of this "Sender Nickname" field in Hellos are (1) To tell end stations that are doing TRILL encapsulation what nickname to put in the ingress nickname field of the TRILL Header. (see point 8 near the start of Section 4.6.2 of RFC 6325) (2) If the relevant part of the clarifications an corrections draft is adopted, it would also be used for self appointment sub-TLVs as per Section 10.1 of draft-eastlake-trill-rbridge-clear-correct-03.txt. Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com On Wed, Jan 18, 2012 at 2:22 AM, gururam m wrote: > Hi, > =A0=A0 =A0=A0 In RFC 6326 the special VLANs and Flags Sub-TLV has "Sender= Nickname" > filed. If an RBridge has single nickname then that will be included in the > "Sender Nickname" field. But what if the RBridge supports multiple nickna= mes > let us say 4 of them. Then which one of the 4 nicknames is sent in the > "Sender Nickname" field=A0 in the above sub-TLV. > > Regards > Ram > > > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge > _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Wed Jan 18 04:57:36 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8E04821F85CE for ; Wed, 18 Jan 2012 04:57:36 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.598 X-Spam-Level: X-Spam-Status: No, score=-6.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CYq-R1sdSzqI for ; Wed, 18 Jan 2012 04:57:35 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id B31D421F8510 for ; Wed, 18 Jan 2012 04:57:35 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0ICjLn8012129; Wed, 18 Jan 2012 04:45:22 -0800 (PST) Received: from mail-vw0-f52.google.com (mail-vw0-f52.google.com [209.85.212.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0ICihbk012105 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Wed, 18 Jan 2012 04:44:52 -0800 (PST) Received: by vbbez10 with SMTP id ez10so3721344vbb.39 for ; Wed, 18 Jan 2012 04:44:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=GpjOgXyuSLjiDBB6dvS7VfVzD4dGBxn3eWBo1MzA0fg=; b=ULwqqj85wX0grizLYY1rIicYWos7jvQBkBtI7/dUdr2Ag/vGhm23D9vpG5eMN7qiCj 3f9fgbnhGKabibkjV6Dhsi6kDX4DxV5r6oy6Llj8xf6BC5vTwqRrjnstwHT8/JNvAqwm aMkg83nOtORueEe6TpbjR3wWoCme94atga15I= MIME-Version: 1.0 Received: by 10.52.24.242 with SMTP id x18mr10516656vdf.39.1326890682723; Wed, 18 Jan 2012 04:44:42 -0800 (PST) Received: by 10.220.3.81 with HTTP; Wed, 18 Jan 2012 04:44:42 -0800 (PST) Date: Wed, 18 Jan 2012 18:14:42 +0530 Message-ID: From: keshav karedla To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: kesavka@gmail.com Subject: [rbridge] Tree adjacency check and RPF check X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1390938529==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============1390938529== Content-Type: multipart/alternative; boundary=bcaec5015fc1ccabb704b6cccf8f --bcaec5015fc1ccabb704b6cccf8f Content-Type: text/plain; charset=UTF-8 Hi Authors, Can you please tell us the scenarios where Tree adjacency check fails and RPF check passes and vice-versa. I am not clear whether these two checks are required or not, what I am thinking is only RPF check will do the both jobs. please Clarify. Regards, Keshav --bcaec5015fc1ccabb704b6cccf8f Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Authors,

Can you please tell us the scenarios wh= ere Tree adjacency check fails and RPF check passes and vice-versa.
I am= not clear whether these two checks are required or not, what I am thinking= is only RPF check will do the both jobs.

please Clarify.

Regards,
Keshav



--bcaec5015fc1ccabb704b6cccf8f-- --===============1390938529== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============1390938529==-- From rbridge-bounces@postel.org Wed Jan 18 06:30:37 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1A5B921F882D for ; Wed, 18 Jan 2012 06:30:37 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.856 X-Spam-Level: X-Spam-Status: No, score=-105.856 tagged_above=-999 required=5 tests=[AWL=0.743, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZY+tJSGCEvqJ for ; Wed, 18 Jan 2012 06:30:36 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 71C3021F882C for ; Wed, 18 Jan 2012 06:30:36 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0IE8rVv023716; Wed, 18 Jan 2012 06:08:54 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0IE8GkI023392 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Wed, 18 Jan 2012 06:08:26 -0800 (PST) Received: by lahg1 with SMTP id g1so5262564lah.39 for ; Wed, 18 Jan 2012 06:08:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=WhxYQ09IH7QpD2oAwp1zye3MUA4lnfHsww8ia8RgTR0=; b=TowgICBOSOW3XLxm725zZ44PQBSq/OIXNveuNXVWMFBei4dYJ4CK5whs/Q4S2pNxak wmxRyVcqrmWsA7XIefV1hyJyJkUyHiv2dDEpTSmYfswvqkz8iLl0UGMfGK+iLkYk/nNS hzV8zS6EKZ8kaA3ZNm7kxH4amFPz0Pclk+b7g= Received: by 10.152.147.137 with SMTP id tk9mr3803977lab.8.1326895695238; Wed, 18 Jan 2012 06:08:15 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.100.131 with HTTP; Wed, 18 Jan 2012 06:07:54 -0800 (PST) In-Reply-To: References: From: Donald Eastlake Date: Wed, 18 Jan 2012 09:07:54 -0500 Message-ID: To: keshav karedla X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0IE8GkI023392 Cc: rbridge@postel.org Subject: Re: [rbridge] Tree adjacency check and RPF check X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Hi Keshav, On Wed, Jan 18, 2012 at 7:44 AM, keshav karedla wrote: > Hi Authors, > > Can you please tell us the scenarios where Tree adjacency check fails and > RPF check passes and vice-versa. I assume you are talking about the checks in Section 4.5.2 of RFC 6325. The Tree adjacency check only applies on a multi-access link, such as an Ethernet link, where they might be a station sending to you that is not a Tree adjacency. It is basically a test on the source MAC address and tree root nickname. The RPF check is a check on the triplet (receiving port, ingress nickname, tree root nickname) to see it if corresponds to one allowed by the receiver based on the distribution trees it has built. It does not involve the source MAC. > I am not clear whether these two checks are required or not, what I am > thinking is only RPF check will do the both jobs. Well, the TRILL base protocol specification currently requires both tests. You could certainly combine them by testing a quadruplet of fields that included the source MAC. If everything is stable and operating properly, you don't need to do any tests at all. If there are routing transients and ports/links going up and down and/or some end station trying to forge stuff, I think you are better off applying both tests. Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com > please Clarify. > > Regards, > Keshav _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Wed Jan 18 13:39:55 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A94CB11E807F for ; Wed, 18 Jan 2012 13:39:55 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -104.567 X-Spam-Level: X-Spam-Status: No, score=-104.567 tagged_above=-999 required=5 tests=[AWL=2.032, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ulI+41VtX7jp for ; Wed, 18 Jan 2012 13:39:50 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 0558011E809C for ; Wed, 18 Jan 2012 13:39:49 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0ILIXl5006792; Wed, 18 Jan 2012 13:18:34 -0800 (PST) Received: from mail.ietf.org (mail.ietf.org [12.22.58.30]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0ILIKNG006424 for ; Wed, 18 Jan 2012 13:18:29 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2DB2421F851D for ; Wed, 18 Jan 2012 13:18:20 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QyXcolhWl966; Wed, 18 Jan 2012 13:18:19 -0800 (PST) Received: from ietfa.amsl.com (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 86DF821F8501; Wed, 18 Jan 2012 13:18:19 -0800 (PST) MIME-Version: 1.0 From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 3.64p1 Message-ID: <20120118211819.28779.25195.idtracker@ietfa.amsl.com> Date: Wed, 18 Jan 2012 13:18:19 -0800 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: internet-drafts@ietf.org X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0ILIKNG006424 Cc: rbridge@postel.org Subject: [rbridge] I-D Action: draft-ietf-trill-rbridge-channel-04.txt X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Transparent Interconnection of Lots of Links Working Group of the IETF. Title : TRILL: RBridge Channel Support Author(s) : Donald Eastlake Vishwas Manral Yizhou Li Sam Aldrin Dave Ward Filename : draft-ietf-trill-rbridge-channel-04.txt Pages : 25 Date : 2012-01-18 This document specifies a general channel mechanism for sending messages, such as OAM (Operations, Administration, and Maintenance) messages, between RBridges (Routing Bridges) and between RBridges and end stations in an RBridge campus through extensions to the TRILL (TRansparent Interconnection of Lots of Links) protocol. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-trill-rbridge-channel-04.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ This Internet-Draft can be retrieved at: ftp://ftp.ietf.org/internet-drafts/draft-ietf-trill-rbridge-channel-04.txt _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Tue Jan 24 15:55:58 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 08F1721F8537 for ; Tue, 24 Jan 2012 15:55:58 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -104.548 X-Spam-Level: X-Spam-Status: No, score=-104.548 tagged_above=-999 required=5 tests=[AWL=2.051, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id d+o0N9uw1uQk for ; Tue, 24 Jan 2012 15:55:51 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id A55D221F8559 for ; Tue, 24 Jan 2012 15:55:51 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0ONrdn9006090; Tue, 24 Jan 2012 15:53:40 -0800 (PST) Received: from mail.ietf.org (mail.ietf.org [12.22.58.30]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0ONrEmq005661 for ; Tue, 24 Jan 2012 15:53:23 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0883F21F84F4 for ; Tue, 24 Jan 2012 15:53:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id sDJsscRMSUcf; Tue, 24 Jan 2012 15:53:13 -0800 (PST) Received: from ietfa.amsl.com (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 91BA121F84BD; Tue, 24 Jan 2012 15:53:13 -0800 (PST) MIME-Version: 1.0 From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 3.64p1 Message-ID: <20120124235313.29775.78710.idtracker@ietfa.amsl.com> Date: Tue, 24 Jan 2012 15:53:13 -0800 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: internet-drafts@ietf.org X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0ONrEmq005661 Cc: rbridge@postel.org Subject: [rbridge] I-D Action: draft-ietf-trill-rbridge-bfd-02.txt X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Transparent Interconnection of Lots of Links Working Group of the IETF. Title : Rbridges: Bidirectional Forwarding Detection (BFD) support for TRILL Author(s) : Vishwas Manral Donald Eastlake Dave Ward Ayan Banerjee Filename : draft-ietf-trill-rbridge-bfd-02.txt Pages : 10 Date : 2012-01-24 This document specifies use of the BFD (Bidirectional Forwarding Detection) protocol in RBridge campuses based on the Rbridge Channel extension to the the TRILL (TRansparent Interconnection of Lots of Links) protocol. BFD is a widely deployed OAM (Operations, Administration, and Maintenance) mechanism in IP and MPLS networks, using UDP and ACH encapsulation respectively. This document specifies the BFD encapsulation over TRILL. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-trill-rbridge-bfd-02.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ This Internet-Draft can be retrieved at: ftp://ftp.ietf.org/internet-drafts/draft-ietf-trill-rbridge-bfd-02.txt _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Wed Jan 25 00:06:38 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E61EE21F865A for ; Wed, 25 Jan 2012 00:06:38 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.598 X-Spam-Level: X-Spam-Status: No, score=-6.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pjTJcTEbqnfO for ; Wed, 25 Jan 2012 00:06:38 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 1672921F8661 for ; Wed, 25 Jan 2012 00:06:37 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0P7uMGE025743; Tue, 24 Jan 2012 23:56:23 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0P7tnvE025650 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Tue, 24 Jan 2012 23:55:59 -0800 (PST) Received: by lagy4 with SMTP id y4so3323037lag.39 for ; Tue, 24 Jan 2012 23:55:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=keMBVUZOQRiGiAnyBOvCyZEpaoo7vT9iTJCfA0YHsbs=; b=PMpQtS7vH9oAXKLwe66/79YKnlPfdRSpk/hGPWsG0Xq7CgMHop12jqx2LBXiHE+C9M uo4I4c8/iEa1O+7hNp/MfzwnVNw3jnQ38TKZYbmhhITMlWj3G9z9MyZ4IGi4CQOBD4Gj X5HEf8K1zp8yG61Zvdujm0L/htaEH9i48HhfI= MIME-Version: 1.0 Received: by 10.112.49.201 with SMTP id w9mr4059434lbn.23.1327478147459; Tue, 24 Jan 2012 23:55:47 -0800 (PST) Received: by 10.112.100.196 with HTTP; Tue, 24 Jan 2012 23:55:47 -0800 (PST) In-Reply-To: <4F0C38D4.7050801@acm.org> References: <4F0C38D4.7050801@acm.org> Date: Tue, 24 Jan 2012 23:55:47 -0800 Message-ID: From: Jon Hudson To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: jon.hudson@gmail.com Cc: Erik Nordmark Subject: Re: [rbridge] Should we make draft-eastlake-trill-clear-correct-03.txt a WG document? X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0128138432==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============0128138432== Content-Type: multipart/alternative; boundary=bcaec554d9846d2ac904b755977f --bcaec554d9846d2ac904b755977f Content-Type: text/plain; charset=ISO-8859-1 I agree. I also support the adoption of draft-eastlake-trill-clear-correct-03.txt as a WG document. Jon On Tue, Jan 10, 2012 at 5:10 AM, Erik Nordmark wrote: > > Donald presented this document in Taipei, and the authors have revised > it since then. > > I think the document contains useful clarifications. Should we adopt it > as a WG document? > > Please send any comments to the list before January 25th. > > Erik > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge > -- "Do not lie. And do not do what you hate." "Don't worry, be happy" --bcaec554d9846d2ac904b755977f Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable I agree.=A0

I also support the adoption of draft-eastlak= e-trill-clear-correct-03.txt as a WG document.=A0

= Jon

On Tue, Jan 10, 2012 at 5:10 A= M, Erik Nordmark <= nordmark@acm.org> wrote:

Donald presented this document in Taipei, and the authors have revised
it since then.

I think the document contains useful clarifications. Should we adopt it
as a WG document?

Please send any comments to the list before January 25th.

=A0 =A0Erik
_______________________________________________
rbridge mailing list
rbridge@postel.org
http://mailman.postel.org/mailman/listinfo/rbridge



--
"Do not= lie. And do not do what you hate."
"Don't worry, be happy= "
--bcaec554d9846d2ac904b755977f-- --===============0128138432== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0128138432==-- From rbridge-bounces@postel.org Wed Jan 25 02:22:08 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DB0BB21F85E4 for ; Wed, 25 Jan 2012 02:22:06 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.498 X-Spam-Level: X-Spam-Status: No, score=-3.498 tagged_above=-999 required=5 tests=[AWL=3.100, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5WWiNCnwSLiF for ; Wed, 25 Jan 2012 02:22:06 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 0A1B221F85DF for ; Wed, 25 Jan 2012 02:22:05 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0PAAsFR018523; Wed, 25 Jan 2012 02:10:56 -0800 (PST) Received: from mx.force10networks.com (maa.force10networks.com [59.163.202.254]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0PAAGXN018406 for ; Wed, 25 Jan 2012 02:10:26 -0800 (PST) Received: from EXCH-CLUSTER-11.force10networks.com ([10.16.127.20]) by exch7-maa-fe.force10networks.com ([10.16.126.10]) with mapi; Wed, 25 Jan 2012 15:40:12 +0530 From: Janardhanan Pathangi Narasimhan To: "rbridge@postel.org" Date: Wed, 25 Jan 2012 15:43:18 +0530 Thread-Topic: [rbridge] Should we make draft-eastlake-trill-clear-correct-03.txt a WG document? Thread-Index: AczbOannX/hbuOZuRlynS4CtLujljgAEDAQg Message-ID: References: <4F0C38D4.7050801@acm.org> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: jana@force10networks.com Cc: Erik Nordmark Subject: Re: [rbridge] Should we make draft-eastlake-trill-clear-correct-03.txt a WG document? X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0289295722==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============0289295722== Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_CE35792847FBE84687FF9117132C8EFD437D0E41F2EXCHCLUSTER11_" --_000_CE35792847FBE84687FF9117132C8EFD437D0E41F2EXCHCLUSTER11_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable +1 Thanks Jana From: rbridge-bounces@postel.org [mailto:rbridge-bounces@postel.org] On Beh= alf Of Jon Hudson Sent: Wednesday, January 25, 2012 1:26 PM To: rbridge@postel.org Cc: Erik Nordmark Subject: Re: [rbridge] Should we make draft-eastlake-trill-clear-correct-03= .txt a WG document? I agree. I also support the adoption of draft-eastlake-trill-clear-correct-03.txt as= a WG document. Jon On Tue, Jan 10, 2012 at 5:10 AM, Erik Nordmark > wrote: Donald presented this document in Taipei, and the authors have revised it since then. I think the document contains useful clarifications. Should we adopt it as a WG document? Please send any comments to the list before January 25th. Erik _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge -- "Do not lie. And do not do what you hate." "Don't worry, be happy" --_000_CE35792847FBE84687FF9117132C8EFD437D0E41F2EXCHCLUSTER11_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

+1


Thanks

=

Jana

=  

 <= /o:p>

From: rbridge-bounces@postel.or= g [mailto:rbridge-bounces@postel.org] On Behalf Of Jon Hudson
= Sent: Wednesday, January 25, 2012 1:26 PM
To: rbridge@postel.= org
Cc: Erik Nordmark
Subject: Re: [rbridge] Should we = make draft-eastlake-trill-clear-correct-03.txt a WG document?

 

I agree. 

 <= /p>

I also support the adoption of draft-eas= tlake-trill-clear-correct-03.txt as a WG document. 

 

Jon

 

On Tue, Jan 10, 2012 at 5:10 AM, Erik Nordmark = <nordmark@acm.org> wrote:


Donald presented this document in Taipe= i, and the authors have revised
it since then.

I think the docume= nt contains useful clarifications. Should we adopt it
as a WG document?<= br>
Please send any comments to the list before January 25th.

&nb= sp;  Erik
_______________________________________________
rbridg= e mailing list
rbridge@postel.org<= /a>
http://mailman.postel.org/mailman/listinfo/rbridge



<= p class=3DMsoNormal> 

--
= "Do not lie. And do not do what you hate."
"Don't worry, = be happy"

= --_000_CE35792847FBE84687FF9117132C8EFD437D0E41F2EXCHCLUSTER11_-- --===============0289295722== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0289295722==-- From rbridge-bounces@postel.org Wed Jan 25 07:18:50 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A82D721F86B3 for ; Wed, 25 Jan 2012 07:18:50 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.908 X-Spam-Level: X-Spam-Status: No, score=-4.908 tagged_above=-999 required=5 tests=[AWL=1.690, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UvQb3VS6ZF81 for ; Wed, 25 Jan 2012 07:18:49 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id D4D5621F85C9 for ; Wed, 25 Jan 2012 07:18:49 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0PEtWTQ007622; Wed, 25 Jan 2012 06:55:34 -0800 (PST) Received: from mail-bk0-f52.google.com (mail-bk0-f52.google.com [209.85.214.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0PEssNn007575 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Wed, 25 Jan 2012 06:55:04 -0800 (PST) Received: by bkar19 with SMTP id r19so7165751bka.39 for ; Wed, 25 Jan 2012 06:54:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=O0Bt2SKg6+ViXBGVa4B0yiQeFP1Za2HCXEvlO0EHbyM=; b=tuNDX2iJAnNzt+23YsGCFwDBKwWfCjQ0lXvUf09M0kZVLqwu8i/U+uaapo8+68zoaq QDGOH87h1ysg/xhdB/4kyqf29DWP+d4FLpzOVd7wUD5YWp/dYolDgr4T14hnWjGfVzhw eMXs304Z81cG0FfcbQWATvTSe1QZYgMCdxRo8= MIME-Version: 1.0 Received: by 10.204.133.219 with SMTP id g27mr18718bkt.47.1327503292568; Wed, 25 Jan 2012 06:54:52 -0800 (PST) Received: by 10.204.24.83 with HTTP; Wed, 25 Jan 2012 06:54:52 -0800 (PST) In-Reply-To: References: <4F0C38D4.7050801@acm.org> Date: Wed, 25 Jan 2012 06:54:52 -0800 Message-ID: From: Radia Perlman To: Jon Hudson X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: radiaperlman@gmail.com Cc: rbridge@postel.org, Erik Nordmark Subject: Re: [rbridge] Should we make draft-eastlake-trill-clear-correct-03.txt a WG document? X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0945676991==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============0945676991== Content-Type: multipart/alternative; boundary=001517592f1c31158d04b75b7241 --001517592f1c31158d04b75b7241 Content-Type: text/plain; charset=ISO-8859-1 I also support adoption of draft-eastlake-trill-clear-correct-03.txt as a WG document. Radia On Tue, Jan 24, 2012 at 11:55 PM, Jon Hudson wrote: > I agree. > > I also support the adoption of draft-eastlake-trill-clear-correct-03.txt > as a WG document. > > Jon > > On Tue, Jan 10, 2012 at 5:10 AM, Erik Nordmark wrote: > >> >> Donald presented this document in Taipei, and the authors have revised >> it since then. >> >> I think the document contains useful clarifications. Should we adopt it >> as a WG document? >> >> Please send any comments to the list before January 25th. >> >> Erik >> _______________________________________________ >> rbridge mailing list >> rbridge@postel.org >> http://mailman.postel.org/mailman/listinfo/rbridge >> > > > > -- > "Do not lie. And do not do what you hate." > "Don't worry, be happy" > > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge > > --001517592f1c31158d04b75b7241 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
I also support adoption of draft-eastlake-trill-clear-correct-03.txt a= s a WG document.=A0
=A0
Radia

On Tue, Jan 24, 2012 at 11:55 PM, Jon Hudson <jon.hudson@gmail= .com> wrote:
I agree.=A0=20

I also support the adoption of draft-eastlake-trill-clear-correct-03.t= xt as a WG document.=A0

Jon

On Tue, Jan 10, 2012 at 5:10 AM, Erik Nordmark <= span dir=3D"ltr"><= nordmark@acm.org> wrote:

Donald presented this document in= Taipei, and the authors have revised
it since then.

I think the = document contains useful clarifications. Should we adopt it
as a WG document?

Please send any comments to the list before Januar= y 25th.

=A0 =A0Erik
_____________________________________________= __
rbridge mailing list
rbridge@postel.org
http://mailman.postel.org/mailman/listinfo/rbridge



-= -
"Do not lie. And do not do what you hate."
"Don'= ;t worry, be happy"

_______________________= ________________________
rbridge mailing list
rbridge@poste= l.org
http://mailman.postel.org/mailman/listinfo/rbridge

--001517592f1c31158d04b75b7241-- --===============0945676991== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0945676991==-- From rbridge-bounces@postel.org Wed Jan 25 08:53:20 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A88F121F861E for ; Wed, 25 Jan 2012 08:53:20 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.969 X-Spam-Level: X-Spam-Status: No, score=-106.969 tagged_above=-999 required=5 tests=[AWL=-0.370, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5qi1kFUd2zU6 for ; Wed, 25 Jan 2012 08:53:20 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 1908D21F861D for ; Wed, 25 Jan 2012 08:53:19 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0PGSe0h023459; Wed, 25 Jan 2012 08:28:41 -0800 (PST) Received: from e36.co.us.ibm.com (e36.co.us.ibm.com [32.97.110.154]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0PGS3ZF023088 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Wed, 25 Jan 2012 08:28:14 -0800 (PST) Received: from /spool/local by e36.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 25 Jan 2012 09:27:19 -0700 Received: from d03relay05.boulder.ibm.com (d03relay05.boulder.ibm.com [9.17.195.107]) by d03dlp03.boulder.ibm.com (Postfix) with ESMTP id B8F0419D8048 for ; Wed, 25 Jan 2012 09:27:16 -0700 (MST) Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by d03relay05.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q0PGR9dF097766 for ; Wed, 25 Jan 2012 09:27:11 -0700 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q0PGR8nw012660 for ; Wed, 25 Jan 2012 09:27:09 -0700 Received: from cichlid.raleigh.ibm.com (sig-9-65-253-59.mts.ibm.com [9.65.253.59]) by d03av01.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id q0PGR7qR012429 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 25 Jan 2012 09:27:07 -0700 Received: from cichlid.raleigh.ibm.com (localhost [127.0.0.1]) by cichlid.raleigh.ibm.com (8.14.5/8.12.5) with ESMTP id q0PGR53a006267; Wed, 25 Jan 2012 11:27:05 -0500 Message-Id: <201201251627.q0PGR53a006267@cichlid.raleigh.ibm.com> To: Erik Nordmark In-reply-to: <4F0C38D4.7050801@acm.org> References: <4F0C38D4.7050801@acm.org> Comments: In-reply-to Erik Nordmark message dated "Tue, 10 Jan 2012 05:10:44 -0800." Date: Wed, 25 Jan 2012 11:27:04 -0500 From: Thomas Narten X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12012516-3352-0000-0000-0000022B2C68 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: narten@us.ibm.com Cc: rbridge@postel.org Subject: Re: [rbridge] Should we make draft-eastlake-trill-clear-correct-03.txt a WG document? X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Support. Thomas _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Wed Jan 25 09:08:19 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EDAFB21F85F1 for ; Wed, 25 Jan 2012 09:08:19 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.108 X-Spam-Level: X-Spam-Status: No, score=-6.108 tagged_above=-999 required=5 tests=[AWL=0.490, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NNlX9a+7Tluq for ; Wed, 25 Jan 2012 09:08:19 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 2EA3821F85EE for ; Wed, 25 Jan 2012 09:08:19 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0PGc87F024700; Wed, 25 Jan 2012 08:38:10 -0800 (PST) Received: from mtv-iport-1.cisco.com (mtv-iport-1.cisco.com [173.36.130.12]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0PGbNJp024625 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Wed, 25 Jan 2012 08:37:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=tsenevir@cisco.com; l=5483; q=dns/txt; s=iport; t=1327509452; x=1328719052; h=mime-version:subject:date:message-id:in-reply-to: references:from:to:cc; bh=OWDgqmVlnpOKsR+bZhuz2fC5q2izD/Ks7nETkSZhGeM=; b=mffxRhzUADheFI3SSpak8wzVZ78vk4igZcSnemOQNjsN4a4CvLvmGT3B 2F9CeTWuB/z3H/9bM0iom5w3MR8X5YwYc5fVrKcDeUZWUdIeIuoxxhUrH vsBkkpafNZT0iXwp2336c7KR+9gGNSbxzEpjNFxoHgkqgwiIwI2cIVdvO 8=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AiAFAJAuIE+rRDoI/2dsb2JhbABDgk2jXAGIFoEFgXIBAQEEAQEBDwEJEQM+CxACAQgRBAEBCwYXAQYBJh8JCAEBBAESCBqHYpliAZ49iQkiAgEXAgIGCgMFgmgFBAYLCQ8QEQoMBQ4cglBjBIg/n1E X-IronPort-AV: E=Sophos;i="4.71,569,1320624000"; d="scan'208,217";a="25407029" Received: from mtv-core-3.cisco.com ([171.68.58.8]) by mtv-iport-1.cisco.com with ESMTP; 25 Jan 2012 16:37:22 +0000 Received: from xbh-sjc-221.amer.cisco.com (xbh-sjc-221.cisco.com [128.107.191.63]) by mtv-core-3.cisco.com (8.14.3/8.14.3) with ESMTP id q0PGbMab025345; Wed, 25 Jan 2012 16:37:22 GMT Received: from xmb-sjc-214.amer.cisco.com ([171.70.151.145]) by xbh-sjc-221.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.4675); Wed, 25 Jan 2012 08:37:22 -0800 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 25 Jan 2012 08:37:21 -0800 Message-ID: <344037D7CFEFE84E97E9CC1F56C5F4A5790603@xmb-sjc-214.amer.cisco.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [rbridge] Should we make draft-eastlake-trill-clear-correct-03.txt a WG document? Thread-Index: AczbObwwm081GAT/Q8+bKbStcb8DvQARdrsw References: <4F0C38D4.7050801@acm.org> From: "Tissa Senevirathne (tsenevir)" To: "Jon Hudson" , X-OriginalArrivalTime: 25 Jan 2012 16:37:22.0290 (UTC) FILETIME=[9CAE4D20:01CCDB7F] X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: tsenevir@cisco.com Cc: Erik Nordmark Subject: Re: [rbridge] Should we make draft-eastlake-trill-clear-correct-03.txt a WG document? X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0747493631==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org This is a multi-part message in MIME format. --===============0747493631== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CCDB7F.9C7B84B5" This is a multi-part message in MIME format. ------_=_NextPart_001_01CCDB7F.9C7B84B5 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I agree too. =20 From: rbridge-bounces@postel.org [mailto:rbridge-bounces@postel.org] On Behalf Of Jon Hudson Sent: Tuesday, January 24, 2012 11:56 PM To: rbridge@postel.org Cc: Erik Nordmark Subject: Re: [rbridge] Should we make draft-eastlake-trill-clear-correct-03.txt a WG document? =20 I agree.=20 =20 I also support the adoption of draft-eastlake-trill-clear-correct-03.txt as a WG document.=20 =20 Jon =20 On Tue, Jan 10, 2012 at 5:10 AM, Erik Nordmark wrote: Donald presented this document in Taipei, and the authors have revised it since then. I think the document contains useful clarifications. Should we adopt it as a WG document? Please send any comments to the list before January 25th. Erik _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge =20 --=20 "Do not lie. And do not do what you hate." "Don't worry, be happy" ------_=_NextPart_001_01CCDB7F.9C7B84B5 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I agree too.

 

From:= = rbridge-bounces@postel.org [mailto:rbridge-bounces@postel.org] On = Behalf Of Jon Hudson
Sent: Tuesday, January 24, 2012 11:56 = PM
To: rbridge@postel.org
Cc: Erik = Nordmark
Subject: Re: [rbridge] Should we make = draft-eastlake-trill-clear-correct-03.txt a WG = document?

 

I = agree. 

 

I = also support the adoption of draft-eastlake-trill-clear-correct-03.txt = as a WG document. 

 

Jon

 

On Tue, = Jan 10, 2012 at 5:10 AM, Erik Nordmark <nordmark@acm.org> = wrote:


Donald presented this = document in Taipei, and the authors have revised
it since = then.

I think the document contains useful clarifications. Should = we adopt it
as a WG document?

Please send any comments to the = list before January 25th.

  =  Erik
_______________________________________________
rbridge = mailing list
rbridge@postel.org
http://mailman.postel.org/mailman/listinfo/rbridge<= o:p>



 

-- =
"Do not lie. And do not do what you hate."
"Don't = worry, be happy"

------_=_NextPart_001_01CCDB7F.9C7B84B5-- --===============0747493631== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0747493631==-- From rbridge-bounces@postel.org Wed Jan 25 11:38:50 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A103421F85C4 for ; Wed, 25 Jan 2012 11:38:50 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.832 X-Spam-Level: X-Spam-Status: No, score=-4.832 tagged_above=-999 required=5 tests=[AWL=1.767, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jpYc3ffjYANF for ; Wed, 25 Jan 2012 11:38:50 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 0673621F85B4 for ; Wed, 25 Jan 2012 11:38:49 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0PJS9oJ026923; Wed, 25 Jan 2012 11:28:09 -0800 (PST) Received: from mail-gx0-f180.google.com (mail-gx0-f180.google.com [209.85.161.180]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0PJRaF8026841 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Wed, 25 Jan 2012 11:27:45 -0800 (PST) Received: by ggnp2 with SMTP id p2so3772705ggn.39 for ; Wed, 25 Jan 2012 11:27:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=gnu/m26QPjfjeKZ6aQQoITmiC7mNNCAOJWAfPjphr88=; b=wN504w7FlW+vACBryABp5IqdHQgsif/eadwvctNDUQQaGExGm3pONDz00gszbUIkzI 75OY+Zw6Vfw5wIn0S/27F/tcpYq62zp7MT8MxAXq7kDBdZaWOKuZAgN6DDWRdFCB8rqt klYhG1oD3G2Ns24jVaarRzVboM1bTvqE4P1cs= MIME-Version: 1.0 Received: by 10.182.38.7 with SMTP id c7mr16729969obk.44.1327519655967; Wed, 25 Jan 2012 11:27:35 -0800 (PST) Received: by 10.182.28.196 with HTTP; Wed, 25 Jan 2012 11:27:35 -0800 (PST) In-Reply-To: <4F0C38D4.7050801@acm.org> References: <4F0C38D4.7050801@acm.org> Date: Wed, 25 Jan 2012 11:27:35 -0800 Message-ID: From: Vishwas Manral To: Erik Nordmark X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: vishwas.ietf@gmail.com Cc: rbridge@postel.org Subject: Re: [rbridge] Should we make draft-eastlake-trill-clear-correct-03.txt a WG document? X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Support as an author. -Vishwas On 1/10/12, Erik Nordmark wrote: > > Donald presented this document in Taipei, and the authors have revised > it since then. > > I think the document contains useful clarifications. Should we adopt it > as a WG document? > > Please send any comments to the list before January 25th. > > Erik > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge > _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Thu Jan 26 13:34:56 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2894521F8740 for ; Thu, 26 Jan 2012 13:34:56 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -104.503 X-Spam-Level: X-Spam-Status: No, score=-104.503 tagged_above=-999 required=5 tests=[AWL=2.096, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WsfoZ0XRu++Q for ; Thu, 26 Jan 2012 13:34:44 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 7991421F8633 for ; Thu, 26 Jan 2012 13:34:44 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0QLIpHO017042; Thu, 26 Jan 2012 13:18:52 -0800 (PST) Received: from mail.ietf.org (mail.ietf.org [12.22.58.30]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0QLI9CV016648 for ; Thu, 26 Jan 2012 13:18:18 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AC38B21F86DE for ; Thu, 26 Jan 2012 13:18:09 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mH8kgPh9xFDP; Thu, 26 Jan 2012 13:18:09 -0800 (PST) Received: from ietfa.amsl.com (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 41D4721F85ED; Thu, 26 Jan 2012 13:18:09 -0800 (PST) MIME-Version: 1.0 From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 3.64p1 Message-ID: <20120126211809.4288.12618.idtracker@ietfa.amsl.com> Date: Thu, 26 Jan 2012 13:18:09 -0800 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: internet-drafts@ietf.org X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0QLI9CV016648 Cc: rbridge@postel.org Subject: [rbridge] I-D Action: draft-ietf-trill-rbridge-mib-05.txt X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Transparent Interconnection of Lots of Links Working Group of the IETF. Title : Definitions of Managed Objects for RBridges (Routing Bridges) Author(s) : Anil Rijhsinghani Kate Zebrose Filename : draft-ietf-trill-rbridge-mib-05.txt Pages : 56 Date : 2012-01-26 This memo defines a portion of the Management Information Base (MIB) for use with network management protocols. In particular it defines objects for managing an RBridge (Routing Bridge), also known as a TRILL Switch, based on the IETF TRILL (Transparent Interconnection of Lots of Links) protocol described in RFC 6325. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-trill-rbridge-mib-05.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ This Internet-Draft can be retrieved at: ftp://ftp.ietf.org/internet-drafts/draft-ietf-trill-rbridge-mib-05.txt _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Thu Jan 26 14:06:35 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A80B021F86C3 for ; Thu, 26 Jan 2012 14:06:35 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.599 X-Spam-Level: X-Spam-Status: No, score=-106.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 20hGmtY5VVTF for ; Thu, 26 Jan 2012 14:06:35 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id EC65921F86C1 for ; Thu, 26 Jan 2012 14:06:34 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0QLjtwT021524; Thu, 26 Jan 2012 13:45:56 -0800 (PST) Received: from a.mail.sonic.net (a.mail.sonic.net [64.142.16.245]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0QLjAGa021433 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Thu, 26 Jan 2012 13:45:19 -0800 (PST) Received: from Erik-Nordmarks-MacBook-Pro-2.local (128-107-239-233.cisco.com [128.107.239.233]) (authenticated bits=0) by a.mail.sonic.net (8.13.8.Beta0-Sonic/8.13.7) with ESMTP id q0QLj8aA012288 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 26 Jan 2012 13:45:08 -0800 Message-ID: <4F21C96C.7050302@acm.org> Date: Thu, 26 Jan 2012 13:45:16 -0800 From: Erik Nordmark User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:9.0) Gecko/20111222 Thunderbird/9.0.1 MIME-Version: 1.0 To: rbridge@postel.org References: <4F0C38D4.7050801@acm.org> In-Reply-To: <4F0C38D4.7050801@acm.org> X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: nordmark@acm.org Subject: [rbridge] Accepted draft-eastlake-trill-clear-correct-03.txt as a WG document X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Based on the feedback on the mailing list we'll make this a WG document. Thanks, Erik On 1/10/12 5:10 AM, Erik Nordmark wrote: > > Donald presented this document in Taipei, and the authors have revised > it since then. > > I think the document contains useful clarifications. Should we adopt it > as a WG document? > > Please send any comments to the list before January 25th. > > Erik > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge > _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Thu Jan 26 22:06:46 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7A92421F854A for ; Thu, 26 Jan 2012 22:06:46 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.598 X-Spam-Level: X-Spam-Status: No, score=-6.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id E8IJidkFQNGY for ; Thu, 26 Jan 2012 22:06:45 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id E071821F8546 for ; Thu, 26 Jan 2012 22:06:45 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0R5caCF005022; Thu, 26 Jan 2012 21:38:37 -0800 (PST) Received: from mail-bk0-f52.google.com (mail-bk0-f52.google.com [209.85.214.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0R5bSau004639 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Thu, 26 Jan 2012 21:37:38 -0800 (PST) Received: by bkar19 with SMTP id r19so1845485bka.39 for ; Thu, 26 Jan 2012 21:37:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=4Vu9auYaM9YscsnqEeNPiVte1VX+v4DFoTEk8XHA0xw=; b=VumcTlNfSAXGDIuSABy98NDLg1ZZ8dhMONcHo8RtV3amzzhGnKslSf/DDNMONy+fNj v4rvHvMAxlRFnBMNqLjI6rCT+lWEcq1OhUNlXX1lxP+qEYiKpDGgcGl+wrdNR0AtUZ6x BcK/TTj6mbhpy0r7cKxOsC0lvpYkT2t1YORWM= MIME-Version: 1.0 Received: by 10.205.137.11 with SMTP id im11mr2415714bkc.36.1327642647494; Thu, 26 Jan 2012 21:37:27 -0800 (PST) Received: by 10.204.50.193 with HTTP; Thu, 26 Jan 2012 21:37:27 -0800 (PST) Date: Fri, 27 Jan 2012 11:07:27 +0530 Message-ID: From: Abhinav Bhatia To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: nitks.abhinav@gmail.com Subject: [rbridge] Queries on RFC 6325 - Forming neighbors on L2 access port X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0865096084==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============0865096084== Content-Type: multipart/alternative; boundary=000e0ce03a166480ec04b77be41c --000e0ce03a166480ec04b77be41c Content-Type: text/plain; charset=ISO-8859-1 Hi, I have a query regarding forming neighbors between L2 access ports. " A TRILL IS-IS frame on an 802.3 link is structured as shown below. All such frames are Ethertype encoded. The RBridge port out of which such a frame is sent will strip the outer VLAN tag if configured to do so." If a port is configured as layer 2 access port , then while sending the trill control frame it will strip off the vlan id. What should be the behavior on the recieving side (if RBridge), since we expect trill control frames to be on dvlan or some other vlan , should the frame be dropped and neighbor is avoided?. If not then how we will come to know on which vlan the fame has arrived and is there any vlan mapping or not? Regards, Abhinav --000e0ce03a166480ec04b77be41c Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi,

I have a query regarding forming neighbors between L2 access por= ts.
"  A TRILL IS-IS frame on an 802.3 link =
is structured as shown below.
   All such frames are Ethertype encoded. =
 The RBridge port out of which

   such a frame is sent will strip the outer VLAN tag if configured to
 =
  do so."
If a port is configured as layer 2 access port , then while sending the tri= ll control frame it will strip off the vlan id.

What should be the b= ehavior on the recieving side (if RBridge), since we expect trill control f= rames to be on dvlan or some other vlan , should the frame be dropped and n= eighbor is avoided?. If not then how we will come to know on which vlan the= fame has arrived and is there any vlan mapping or not?

Regards,
Abhinav
=A0



--000e0ce03a166480ec04b77be41c-- --===============0865096084== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============0865096084==-- From rbridge-bounces@postel.org Fri Jan 27 06:12:15 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DD7BF21F846C for ; Fri, 27 Jan 2012 06:12:15 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.447 X-Spam-Level: X-Spam-Status: No, score=-105.447 tagged_above=-999 required=5 tests=[AWL=0.552, BAYES_00=-2.599, J_CHICKENPOX_54=0.6, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LKnPezI2Ly7B for ; Fri, 27 Jan 2012 06:12:15 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 068DF21F845E for ; Fri, 27 Jan 2012 06:12:14 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0RDwmqO018982; Fri, 27 Jan 2012 05:58:49 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0RDwOqS018957 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Fri, 27 Jan 2012 05:58:34 -0800 (PST) Received: by lagy4 with SMTP id y4so1752870lag.39 for ; Fri, 27 Jan 2012 05:58:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=kzz/GP8GVmPbCb0bZYZk4a1nPuEonryyc9fjWl59g4A=; b=jk+cH2vZKOqfqyIGWfmlFtTJ3zFkwhwyd0duSYKpR7cTpbCdTACLyhbtelRuOM3WXo yE3HUO3DCLQFm27aNZx60GHzOFfbu+hl7nbBHLNxo+A7mF1W81h0TY4T+Dzg6x3h7m2Q m60utEwilfIJhAlrmBGs+zQG/9hFhARqIauus= Received: by 10.112.85.73 with SMTP id f9mr1807317lbz.25.1327672703261; Fri, 27 Jan 2012 05:58:23 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.40.231 with HTTP; Fri, 27 Jan 2012 05:58:03 -0800 (PST) In-Reply-To: References: From: Donald Eastlake Date: Fri, 27 Jan 2012 08:58:03 -0500 Message-ID: To: Abhinav Bhatia X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0RDwOqS018957 Cc: rbridge@postel.org Subject: Re: [rbridge] Queries on RFC 6325 - Forming neighbors on L2 access port X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org Hi Abhinav, On Fri, Jan 27, 2012 at 12:37 AM, Abhinav Bhatia wrote: > Hi, > > I have a query regarding forming neighbors between L2 access ports. > > " A TRILL IS-IS frame on an 802.3 link is structured as shown below. > All such frames are Ethertype encoded. The RBridge port out of which > such a frame is sent will strip the outer VLAN tag if configured to > do so." > > If a port is configured as layer 2 access port , then while sending the > trill control frame it will strip off the vlan id. I'm not 100% sure what you mean by "layer 2 access port". There is the TRILL access port configuration bit, formally known as the TRILL traffic disable bit, which has to do with stopping the port from being used by TRILL Data frames and has nothing to do with VLAN labeling. But I think you mean the 802.1Q port configuration which controls whether or not there is actually an outer VLAN tag when the frame is transmitted on the link. These two configurations can be set independently from each other. > What should be the behavior on the recieving side (if RBridge), since we > expect trill control frames to be on dvlan or some other vlan , should the > frame be dropped and neighbor is avoided?. Just like the 802.1Q customer bridge forwarding function, the TRILL/RBridge logic and forwarding function have no idea whether the frame was actually VLAN tagged on the wire. If the received frame makes it through the lower levels of the port logic, which are the same for an RBridge and for an 802.1Q customer bridge, by the time it gets to the higher level logic, there will always be a VLAN ID associated with it. I'm not sure what "avoiding" a neighbor would mean. > If not then how we will come to > know on which vlan the fame has arrived and is there any vlan mapping or > not? The lower layers of RBridge ports are just like 802.1Q customer bridge ports. The vlan "on which ... the frame has arrived" is just whatever the EISS interface reports to higher layers. If the frame was untagged on the link, it is the port VLAN ID. If you have a multi-access link with multiple RBridge ports on it and those ports are configured inconsistently as to their port VLAN ID, then the same TRILL frame that was transmitted untagged will appear to "arrive" on different VLANs on different ports. If the TRILL frame is a TRILL IS-IS Hello frame, then at most one of such ports could find that the VLAN of the frame matches the saved copy of the VLAN on which the frame was sent. All other ports will detect VLAN mapping and the DRB will take appropriate action concerning appointed forwarders, if necessary. However, TRILL IS-IS frames are still processed regardless of what VLAN they appear to arrive on. If the TRILL frame is a TRILL Data frame, TRILL doesn't care what VLAN it "arrives on". The Outer.VLAN, just like the outer source and destination MAC addresses, are just transport artifacts to get the TRILL Data payload (which starts with the TRILL Header) from one RBridge to the next. (Also, TRILL unicast and multi-destination Data forwarding are not affected by appointed forwarders or port inhibition.) I hope the above makes things clearer. Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com > Regards, > Abhinav _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Fri Jan 27 14:29:50 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8F94221F84B9 for ; Fri, 27 Jan 2012 14:29:50 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -104.575 X-Spam-Level: X-Spam-Status: No, score=-104.575 tagged_above=-999 required=5 tests=[AWL=2.024, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CyMoix5hqJrQ for ; Fri, 27 Jan 2012 14:29:49 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id E92D121F84B8 for ; Fri, 27 Jan 2012 14:29:49 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0RMAUq4004233; Fri, 27 Jan 2012 14:10:31 -0800 (PST) Received: from mail.ietf.org (mail.ietf.org [12.22.58.30]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0RM9vU5004186 for ; Fri, 27 Jan 2012 14:10:05 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CDA0821F86C5 for ; Fri, 27 Jan 2012 14:09:56 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id glnmPPmjOD7n; Fri, 27 Jan 2012 14:09:56 -0800 (PST) Received: from ietfa.amsl.com (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5403721F86A2; Fri, 27 Jan 2012 14:09:56 -0800 (PST) MIME-Version: 1.0 From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 3.64p1 Message-ID: <20120127220956.32307.80501.idtracker@ietfa.amsl.com> Date: Fri, 27 Jan 2012 14:09:56 -0800 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: internet-drafts@ietf.org X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0RM9vU5004186 Cc: rbridge@postel.org Subject: [rbridge] I-D Action: draft-ietf-trill-clear-correct-00.txt X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Transparent Interconnection of Lots of Links Working Group of the IETF. Title : TRILL: Clarifications, Corrections, and Updates Author(s) : Donald Eastlake Mingui Zhang Anoop Ghanwani Ayan Banerjee Vishwas Manral Filename : draft-ietf-trill-clear-correct-00.txt Pages : 28 Date : 2012-01-27 The IETF TRILL (TRansparent Interconnection of Lots of Links) protocol provides least cost pair-wise data forwarding without configuration in multi-hop networks with arbitrary topology, safe forwarding even during periods of temporary loops, and support for multipathing of both unicast and multicast traffic. TRILL accomplishes this by using IS-IS (Intermediate System to Intermediate System) link state routing and by encapsulating traffic using a header that includes a hop count. Since the TRILL base protocol was approved in March 2010, active development of TRILL has revealed a few errata in the original RFC 6325 and some cases that could use clarifications or updates. RFC 6327, RFC 6439, and RFC XXXX, provide clarifications with respect to Adjacency, Appointed Forwarders, and the TRILL ESADI protocol. This document provide other known clarifications, corrections, and updates to RFC 6325, RFC 6327, and RFC 6439. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-trill-clear-correct-00.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ This Internet-Draft can be retrieved at: ftp://ftp.ietf.org/internet-drafts/draft-ietf-trill-clear-correct-00.txt _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Fri Jan 27 15:00:49 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4F62321F8669 for ; Fri, 27 Jan 2012 15:00:49 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.744 X-Spam-Level: X-Spam-Status: No, score=-105.744 tagged_above=-999 required=5 tests=[AWL=0.855, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5e6my9WoxWpc for ; Fri, 27 Jan 2012 15:00:47 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 6247F21F8674 for ; Fri, 27 Jan 2012 15:00:47 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0RMZVHk008607; Fri, 27 Jan 2012 14:35:32 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0RMYxWp008521 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NOT) for ; Fri, 27 Jan 2012 14:35:09 -0800 (PST) Received: by lagy4 with SMTP id y4so2242938lag.39 for ; Fri, 27 Jan 2012 14:34:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type:content-transfer-encoding; bh=tOKqwUjNTP3+ZhjDP5pHScSkApxaRYt9gtPX93OXTAo=; b=TLr+uNWax7t4umDB4YCjU6feo4Qbu9xnvcJrQyv9/Eg/bsKtcADVB0FGSCWhabSRBz uQoS9tZA9L3wo0UITgE+DeF5rz/6ua/YDqlIGIB7cpvjXc9l4v/0/LIKnOSnc+parQIF cv0yC+2c4N3rk2ZaCCyxBvAaiPzhbpznUJFFc= Received: by 10.152.112.100 with SMTP id ip4mr4184650lab.11.1327703698299; Fri, 27 Jan 2012 14:34:58 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.40.231 with HTTP; Fri, 27 Jan 2012 14:34:38 -0800 (PST) In-Reply-To: <20120126211809.4288.12618.idtracker@ietfa.amsl.com> References: <20120126211809.4288.12618.idtracker@ietfa.amsl.com> From: Donald Eastlake Date: Fri, 27 Jan 2012 17:34:38 -0500 Message-ID: To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0RMYxWp008521 Subject: Re: [rbridge] I-D Action: draft-ietf-trill-rbridge-mib-05.txt X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org The revision below is to resolve IESG comments... Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com On Thu, Jan 26, 2012 at 4:18 PM, wrote: > > A New Internet-Draft is available from the on-line Internet-Drafts direct= ories. This draft is a work item of the Transparent Interconnection of Lots= of Links Working Group of the IETF. > > =A0 =A0 =A0 =A0Title =A0 =A0 =A0 =A0 =A0 : Definitions of Managed Objects= for RBridges (Routing Bridges) > =A0 =A0 =A0 =A0Author(s) =A0 =A0 =A0 : Anil Rijhsinghani > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Kate Zebrose > =A0 =A0 =A0 =A0Filename =A0 =A0 =A0 =A0: draft-ietf-trill-rbridge-mib-05.= txt > =A0 =A0 =A0 =A0Pages =A0 =A0 =A0 =A0 =A0 : 56 > =A0 =A0 =A0 =A0Date =A0 =A0 =A0 =A0 =A0 =A0: 2012-01-26 > > =A0 This memo defines a portion of the Management Information Base (MIB) > =A0 for use with network management protocols. =A0In particular it defines > =A0 objects for managing an RBridge (Routing Bridge), also known as a > =A0 TRILL Switch, based on the IETF TRILL (Transparent Interconnection of > =A0 Lots of Links) protocol described in RFC 6325. > > > A URL for this Internet-Draft is: > http://www.ietf.org/internet-drafts/draft-ietf-trill-rbridge-mib-05.txt > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > This Internet-Draft can be retrieved at: > ftp://ftp.ietf.org/internet-drafts/draft-ietf-trill-rbridge-mib-05.txt > > > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Mon Jan 30 12:09:29 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 92B1011E8091 for ; Mon, 30 Jan 2012 12:09:29 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -104.642 X-Spam-Level: X-Spam-Status: No, score=-104.642 tagged_above=-999 required=5 tests=[AWL=1.957, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DwYx7hU+DK1c for ; Mon, 30 Jan 2012 12:09:29 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id E466921F863C for ; Mon, 30 Jan 2012 12:09:28 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0UJrJrb006613; Mon, 30 Jan 2012 11:53:20 -0800 (PST) Received: from mail.ietf.org (mail.ietf.org [12.22.58.30]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0UJqbXW006105 for ; Mon, 30 Jan 2012 11:52:46 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 270AE11E80AB for ; Mon, 30 Jan 2012 11:52:37 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id W2pQsz5QpPzG; Mon, 30 Jan 2012 11:52:35 -0800 (PST) Received: from ietfa.amsl.com (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5875921F853F; Mon, 30 Jan 2012 11:52:31 -0800 (PST) MIME-Version: 1.0 From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 3.64p1 Message-ID: <20120130195231.29627.59442.idtracker@ietfa.amsl.com> Date: Mon, 30 Jan 2012 11:52:31 -0800 X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: internet-drafts@ietf.org X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0UJqbXW006105 Cc: rbridge@postel.org Subject: [rbridge] I-D Action: draft-ietf-trill-rbridge-mib-06.txt X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Transparent Interconnection of Lots of Links Working Group of the IETF. Title : Definitions of Managed Objects for RBridges (Routing Bridges) Author(s) : Anil Rijhsinghani Kate Zebrose Filename : draft-ietf-trill-rbridge-mib-06.txt Pages : 56 Date : 2012-01-30 This memo defines a portion of the Management Information Base (MIB) for use with network management protocols. In particular it defines objects for managing an RBridge (Routing Bridge), also known as a TRILL Switch, based on the IETF TRILL (Transparent Interconnection of Lots of Links) protocol. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-trill-rbridge-mib-06.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ This Internet-Draft can be retrieved at: ftp://ftp.ietf.org/internet-drafts/draft-ietf-trill-rbridge-mib-06.txt _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Tue Jan 31 03:35:53 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 255B121F8679 for ; Tue, 31 Jan 2012 03:35:53 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.998 X-Spam-Level: X-Spam-Status: No, score=-5.998 tagged_above=-999 required=5 tests=[AWL=-0.600, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id njE86gKIhoFU for ; Tue, 31 Jan 2012 03:35:52 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 7D9EB21F8669 for ; Tue, 31 Jan 2012 03:35:52 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0VBFduV028853; Tue, 31 Jan 2012 03:15:40 -0800 (PST) Received: from mail-bk0-f52.google.com (mail-bk0-f52.google.com [209.85.214.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0VBFCIk028788 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Tue, 31 Jan 2012 03:15:22 -0800 (PST) Received: by bkar19 with SMTP id r19so7059170bka.39 for ; Tue, 31 Jan 2012 03:15:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=gg4tZhEm69P/QqDeZqfhXN/5s0+EWw84rn9T9hb+ncg=; b=BcutOWjzNX5d6x88uR9eR1Fh2xDkxpUXMEC7gl/7yBPyxtK5YrCtcw5EIgOKC7bZ8A zliXKMUTJTgSzwmDGlb3fuVeolDn+ipCQC0Yr6BMScjtEvpcCBT2srRB51ZsBzPG7TQ+ C6CdZTVaCZ6WTXnopkt4qTLFAiGfLXOUC4p3w= MIME-Version: 1.0 Received: by 10.204.150.82 with SMTP id x18mr10736406bkv.51.1328008511645; Tue, 31 Jan 2012 03:15:11 -0800 (PST) Received: by 10.204.128.66 with HTTP; Tue, 31 Jan 2012 03:15:11 -0800 (PST) Date: Tue, 31 Jan 2012 16:45:11 +0530 Message-ID: From: gururam m To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: mgururam@gmail.com Subject: [rbridge] Multiple Nickname support RFC 6325 query.. X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1360405576==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============1360405576== Content-Type: multipart/alternative; boundary=0015175cd10c98695304b7d1137c --0015175cd10c98695304b7d1137c Content-Type: text/plain; charset=ISO-8859-1 Hi, I have question related to ingress nickname usage when multiple nicknames are supported. As per RFC 6325 "section 3.7.2 Ingress RBridge Nickname" an RBridge should use the same nickname in the ingress field whenever it encapsulates a frame with any particular Inner.MacSA and Inner.VLAN value when multiple nicknames are supported. Let us say if we have 8 nicknames(n1,n2... n8) supported on a RBridge as per my understanding of the above statement we could use nickname n1 for all traffic ingressing from VLAN ID 1 to VLAN ID 512 and n2 for all traffic ingressing from VLAN ID 513 to VLAN ID 1024 and so on and so forth. Let me know if there any other draft inprogress or any part of the RFC that mentions a different approach to set the ingress nickname when encapsulating traffic on RBridge that supports multiple nicknames. Regards Ram --0015175cd10c98695304b7d1137c Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Hi,
=A0=A0 I have question related to ingress nickname usage when mu= ltiple nicknames are supported. As per RFC 6325 "section 3.7.2 Ingress= RBridge Nickname" an RBridge should use the same nickname in the ingr= ess field whenever it encapsulates a frame with any particular Inner.MacSA = and Inner.VLAN value when multiple nicknames are supported.

Let us say if we have 8 nicknames(n1,n2... n8) supported on a RBridge a= s per my understanding of the above statement we could use nickname n1 for = all traffic ingressing from VLAN ID 1 to VLAN ID 512 and n2 for all traffic= ingressing from VLAN ID 513=A0 to VLAN ID 1024 and so on and so forth.
Let me know if there any other draft inprogress or any part of the RFC = that mentions a different approach to set the ingress nickname when encapsu= lating traffic on RBridge that supports multiple nicknames.

Regards<= br> Ram
--0015175cd10c98695304b7d1137c-- --===============1360405576== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============1360405576==-- From rbridge-bounces@postel.org Tue Jan 31 05:57:57 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C16C721F8516 for ; Tue, 31 Jan 2012 05:57:57 -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=0.883, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id iGwaVHbb2mt3 for ; Tue, 31 Jan 2012 05:57:55 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 2373921F85F4 for ; Tue, 31 Jan 2012 05:57:55 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0VDc7Jk020339; Tue, 31 Jan 2012 05:38:08 -0800 (PST) Received: from mail-lpp01m010-f52.google.com (mail-lpp01m010-f52.google.com [209.85.215.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0VDbhOL020302 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NOT) for ; Tue, 31 Jan 2012 05:37:53 -0800 (PST) Received: by lagy4 with SMTP id y4so5091572lag.39 for ; Tue, 31 Jan 2012 05:37:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type:content-transfer-encoding; bh=gBgsXl8QFSb0vv478RINI/272lUOaCDuFgHZVNOUS0k=; b=od4uKto9xQA4e/Xf/R34VzV7h4CLuWzhDh+d3bu7gV0qvYHoyWl7XSmY1tgI8XxhIc ZFTKeD8UMuyporIw8BGMqdhNMfxFyKyF88+IN3FrZUySohRRUA8dzChNoQwUGhG1LsYn laIEDgj0OoURDMWoBQqx01yBS5wIvCfMWPYKs= Received: by 10.152.115.3 with SMTP id jk3mr11062316lab.25.1328017062318; Tue, 31 Jan 2012 05:37:42 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.40.231 with HTTP; Tue, 31 Jan 2012 05:37:22 -0800 (PST) In-Reply-To: <20120130195231.29627.59442.idtracker@ietfa.amsl.com> References: <20120130195231.29627.59442.idtracker@ietfa.amsl.com> From: Donald Eastlake Date: Tue, 31 Jan 2012 08:37:22 -0500 Message-ID: To: rbridge@postel.org X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: d3e3e3@gmail.com X-MIME-Autoconverted: from quoted-printable to 8bit by boreas.isi.edu id q0VDbhOL020302 Subject: Re: [rbridge] I-D Action: draft-ietf-trill-rbridge-mib-06.txt X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org The further very minor changes in this version are part of the continuing effort resolve IESG comments. Thanks, Donald =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =A0Donald E. Eastlake 3rd=A0=A0 +1-508-333-2270 (cell) =A0155 Beaver Street,=A0Milford, MA 01757 USA =A0d3e3e3@gmail.com On Mon, Jan 30, 2012 at 2:52 PM, wrote: > > A New Internet-Draft is available from the on-line Internet-Drafts direct= ories. This draft is a work item of the Transparent Interconnection of Lots= of Links Working Group of the IETF. > > =A0 =A0 =A0 =A0Title =A0 =A0 =A0 =A0 =A0 : Definitions of Managed Objects= for RBridges (Routing Bridges) > =A0 =A0 =A0 =A0Author(s) =A0 =A0 =A0 : Anil Rijhsinghani > =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Kate Zebrose > =A0 =A0 =A0 =A0Filename =A0 =A0 =A0 =A0: draft-ietf-trill-rbridge-mib-06.= txt > =A0 =A0 =A0 =A0Pages =A0 =A0 =A0 =A0 =A0 : 56 > =A0 =A0 =A0 =A0Date =A0 =A0 =A0 =A0 =A0 =A0: 2012-01-30 > > =A0 This memo defines a portion of the Management Information Base (MIB) > =A0 for use with network management protocols. =A0In particular it defines > =A0 objects for managing an RBridge (Routing Bridge), also known as a > =A0 TRILL Switch, based on the IETF TRILL (Transparent Interconnection of > =A0 Lots of Links) protocol. > > > A URL for this Internet-Draft is: > http://www.ietf.org/internet-drafts/draft-ietf-trill-rbridge-mib-06.txt > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > This Internet-Draft can be retrieved at: > ftp://ftp.ietf.org/internet-drafts/draft-ietf-trill-rbridge-mib-06.txt _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge From rbridge-bounces@postel.org Tue Jan 31 09:23:55 2012 Return-Path: X-Original-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Delivered-To: ietfarch-trill-archive-Osh9cae4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 03B9321F85F7 for ; Tue, 31 Jan 2012 09:23:55 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.495 X-Spam-Level: X-Spam-Status: No, score=-4.495 tagged_above=-999 required=5 tests=[AWL=0.902, BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_54=0.6, J_CHICKENPOX_55=0.6, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CFQj6ZR5WATD for ; Tue, 31 Jan 2012 09:23:54 -0800 (PST) Received: from boreas.isi.edu (boreas.isi.edu [128.9.160.161]) by ietfa.amsl.com (Postfix) with ESMTP id 7332C21F85F0 for ; Tue, 31 Jan 2012 09:23:54 -0800 (PST) Received: from boreas.isi.edu (localhost [127.0.0.1]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0VGtDUm021190; Tue, 31 Jan 2012 08:55:14 -0800 (PST) Received: from mail-bk0-f52.google.com (mail-bk0-f52.google.com [209.85.214.52]) by boreas.isi.edu (8.13.8/8.13.8) with ESMTP id q0VGsaTo021101 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Tue, 31 Jan 2012 08:54:46 -0800 (PST) Received: by bkar19 with SMTP id r19so256669bka.39 for ; Tue, 31 Jan 2012 08:54:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=wZo3eS0nDB5nkq5BxyzM7SzKwVC0q7FmKVSa765XqHY=; b=jj0vDpOlwX05Gi1osCY/Ak/qgWJ71Z4NMakkvVOFFroG8vvmm2zmUIFFe9c3B1ExdI RFKSFdspJjSlcXbOs6bCYM1DgVtgctNTpZX2GDiejfNYjNB1B+WtgFuL6r4YMLpxM9oM Q/h3M3Slm3yG+actbyznoAeqwr0Jb+umznWtE= MIME-Version: 1.0 Received: by 10.204.155.89 with SMTP id r25mr11124758bkw.11.1328028874574; Tue, 31 Jan 2012 08:54:34 -0800 (PST) Received: by 10.204.24.83 with HTTP; Tue, 31 Jan 2012 08:54:34 -0800 (PST) In-Reply-To: References: Date: Tue, 31 Jan 2012 08:54:34 -0800 Message-ID: From: Radia Perlman To: gururam m X-ISI-4-43-8-MailScanner: Found to be clean X-MailScanner-From: radiaperlman@gmail.com Cc: rbridge@postel.org Subject: Re: [rbridge] Multiple Nickname support RFC 6325 query.. X-BeenThere: rbridge@postel.org X-Mailman-Version: 2.1.6 Precedence: list List-Id: "Developing a hybrid router/bridge." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1016339058==" Sender: rbridge-bounces@postel.org Errors-To: rbridge-bounces@postel.org --===============1016339058== Content-Type: multipart/alternative; boundary=0015175cfa02520c6104b7d5d17c --0015175cfa02520c6104b7d5d17c Content-Type: text/plain; charset=ISO-8859-1 Why is it useful to use multiple nicknames for ingressing? Multiple nicknames are useful for having multiple trees rooted at the same place, but I can't think of any reason why using different nicknames when ingressing frames would be useful. Radia On Tue, Jan 31, 2012 at 3:15 AM, gururam m wrote: > > Hi, > I have question related to ingress nickname usage when multiple > nicknames are supported. As per RFC 6325 "section 3.7.2 Ingress RBridge > Nickname" an RBridge should use the same nickname in the ingress field > whenever it encapsulates a frame with any particular Inner.MacSA and > Inner.VLAN value when multiple nicknames are supported. > > Let us say if we have 8 nicknames(n1,n2... n8) supported on a RBridge as > per my understanding of the above statement we could use nickname n1 for > all traffic ingressing from VLAN ID 1 to VLAN ID 512 and n2 for all traffic > ingressing from VLAN ID 513 to VLAN ID 1024 and so on and so forth. > > Let me know if there any other draft inprogress or any part of the RFC > that mentions a different approach to set the ingress nickname when > encapsulating traffic on RBridge that supports multiple nicknames. > > Regards > Ram > > _______________________________________________ > rbridge mailing list > rbridge@postel.org > http://mailman.postel.org/mailman/listinfo/rbridge > > --0015175cfa02520c6104b7d5d17c Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Why is it useful to use multiple nicknames for ingressing?=A0 Multiple= nicknames are useful for having multiple trees rooted at the same place, b= ut I can't think of any reason why using different nicknames when ingre= ssing frames would be useful.
=A0
Radia

On Tue, Jan 31, 2012 at 3:15 AM, gururam m <mgururam@gmail.com> wrote:

Hi,
=A0=A0 I have question rel= ated to ingress nickname usage when multiple nicknames are supported. As pe= r RFC 6325 "section 3.7.2 Ingress RBridge Nickname" an RBridge sh= ould use the same nickname in the ingress field whenever it encapsulates a = frame with any particular Inner.MacSA and Inner.VLAN value when multiple ni= cknames are supported.

Let us say if we have 8 nicknames(n1,n2... n8) supported on a RBridge a= s per my understanding of the above statement we could use nickname n1 for = all traffic ingressing from VLAN ID 1 to VLAN ID 512 and n2 for all traffic= ingressing from VLAN ID 513=A0 to VLAN ID 1024 and so on and so forth.
Let me know if there any other draft inprogress or any part of the RFC = that mentions a different approach to set the ingress nickname when encapsu= lating traffic on RBridge that supports multiple nicknames.

Regards<= br> Ram

_______________________________________________
rbridge maili= ng list
rbridge@postel.org
= http://mailman.postel.org/mailman/listinfo/rbridge


--0015175cfa02520c6104b7d5d17c-- --===============1016339058== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ rbridge mailing list rbridge@postel.org http://mailman.postel.org/mailman/listinfo/rbridge --===============1016339058==--