From nobody Sun Mar 1 23:25:02 2020 Return-Path: X-Original-To: pce@ietf.org Delivered-To: pce@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 9FD8A3A088A; Sun, 1 Mar 2020 23:24:59 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: pce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.119.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: pce@ietf.org Message-ID: <158313389957.32679.10270577493574758656@ietfa.amsl.com> Date: Sun, 01 Mar 2020 23:24:59 -0800 Archived-At: Subject: [Pce] I-D Action: draft-ietf-pce-flexible-grid-03.txt X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Mar 2020 07:25:00 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Path Computation Element WG of the IETF. Title : PCEP Extension for Flexible Grid Networks Authors : Young Lee Haomian Zheng Ramon Casellas Ricard Vilalta Daniele Ceccarelli Francesco Lazzeri Filename : draft-ietf-pce-flexible-grid-03.txt Pages : 18 Date : 2020-03-01 Abstract: This document provides the Path Computation Element Communication Protocol (PCEP) extensions for the support of Routing and Spectrum Assignment (RSA) in Flexible Grid networks. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-flexible-grid/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-pce-flexible-grid-03 https://datatracker.ietf.org/doc/html/draft-ietf-pce-flexible-grid-03 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-flexible-grid-03 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Tue Mar 3 21:43:35 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A94EA3A0F10; Tue, 3 Mar 2020 21:43:33 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.098 X-Spam-Level: X-Spam-Status: No, score=-2.098 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ADgr7Ea2ia8g; Tue, 3 Mar 2020 21:43:32 -0800 (PST) Received: from mail-il1-x12d.google.com (mail-il1-x12d.google.com [IPv6:2607:f8b0:4864:20::12d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 51ACF3A0F0C; Tue, 3 Mar 2020 21:43:32 -0800 (PST) Received: by mail-il1-x12d.google.com with SMTP id g126so803874ilh.2; Tue, 03 Mar 2020 21:43:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to:cc; bh=2ZGSMHx/6ZaVXdTeQQpmvHt4FYjtB3mhkX2hJ0vEygM=; b=pziddELyAV6tjrx41WFAEOnOdShyrkO9s92sR5kPyRS1k+7CT1uGhWpC11Hk8OmzmL ZexlZa9A1sDg2DKfuU942HuYa8Hlvkaq/53DLASJ3qLorfO+Oc8YPQ1E0lD03gDmu5Di B9sK5/zXAVAAlbS1kt36Wno6FbC0ORto7+crWVzX9h2l906DbX/WzCqWvirfo6rR1I/p uglew6PxOBUJ7z+nGDSaUxoWTM4BXE3tzJYElSYIEIIaDJglCyuVEyiIniCIEgA9WOZd s9cyUd7QwA6Hvh6P+wwxU1QwS6gRgDosz/LmQLwtWEC97Pgyyuo25PMOTn8eJvTOMR6c k1sw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=2ZGSMHx/6ZaVXdTeQQpmvHt4FYjtB3mhkX2hJ0vEygM=; b=tnHW+PMXEMrNfI/ch8hGR4xVqzo2MjvWY2wvN1lpFNOfTb4waa1Yl+7lvlPig9hVM9 9zG4IT08bMl/cuNAkAickX4wG+9kqwUqFWOZElG8++0WqPYLa0N1UwTdj6CqWQv5yGsX kGF9Hlpye+2uayMCXAVVztZI3rwmr+bLx6WCsstjg4xbgCyh+86dIvAQ1U/RQvozLMhb 3jAfRhrb9ZvS0hVfS5x0IXEa8sOFf2vb2/TIWEuwJ11zfNLy1KY2HR0JSisvLnAWegKV l/tO2QEDV+raizrKkgylFg4p9RM4Cx21t1YTnpHiqcnjP50dGZ/egXCJjLTffXaf8WPV u/XA== X-Gm-Message-State: ANhLgQ2cx9j/9y9BIJ+wBDCpFKG9jZ2irIbL4LXTDI1JSTghxsArpP+w 8ZEXEs32xoodDJybC58ZqBobC/rDX5jogBbWqdErFvn3 X-Google-Smtp-Source: ADFU+vsD4C43zgarSYfaQGoOFN7/FwlFAQqSawdET9T2JFFHaFHmO7nTNeBgwjvo9gDCkSv9q8RHOI/dlk5V+nAmoKk= X-Received: by 2002:a92:8395:: with SMTP id p21mr1172711ilk.14.1583300611195; Tue, 03 Mar 2020 21:43:31 -0800 (PST) MIME-Version: 1.0 From: Dhruv Dhody Date: Wed, 4 Mar 2020 11:12:54 +0530 Message-ID: To: pce@ietf.org Cc: pce-chairs Content-Type: text/plain; charset="UTF-8" Archived-At: Subject: [Pce] Agenda building for IETF 107 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Mar 2020 05:43:34 -0000 Hi WG, The PCE WG session in Vancouver is scheduled for Tuesday Afternoon session I [1]. If you need some face-to-face time to progress some work, please send a slot request to the chairs/secretary directly by Friday March 13th including: - the draft(s) you want to discuss, - the expected presenter name, (mention clearly if the presenter would be remote) - the requested duration, including question time as part of the slot, - the reason why you want to be on the agenda; What do you want to achieve? Why is a presentation necessary to achieve it? Please note - Asking for a slot does not mean you will get one. We will be prioritizing moving WG work first as well as drafts that were discussed on the mailing list. Please make sure to introduce your new draft or summarize an update in the mailing list. The last date to submit drafts is Monday March 9th [2]. Thanks! PCE Chairs & Secretary [1] https://datatracker.ietf.org/meeting/107/agenda.html [2] https://datatracker.ietf.org/meeting/important-dates/ From nobody Wed Mar 4 14:10:15 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0DDE63A0A3C; Wed, 4 Mar 2020 14:10:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.897 X-Spam-Level: X-Spam-Status: No, score=-1.897 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WAzbb3ecfHFU; Wed, 4 Mar 2020 14:10:12 -0800 (PST) Received: from mta5.iomartmail.com (mta5.iomartmail.com [62.128.193.155]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DCE6A3A0A3B; Wed, 4 Mar 2020 14:10:08 -0800 (PST) Received: from vs3.iomartmail.com (vs3.iomartmail.com [10.12.10.124]) by mta5.iomartmail.com (8.14.4/8.14.4) with ESMTP id 024MA63m014772; Wed, 4 Mar 2020 22:10:06 GMT Received: from vs3.iomartmail.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 610222203A; Wed, 4 Mar 2020 22:10:06 +0000 (GMT) Received: from asmtp3.iomartmail.com (unknown [10.12.10.224]) by vs3.iomartmail.com (Postfix) with ESMTPS id 4BCA722032; Wed, 4 Mar 2020 22:10:06 +0000 (GMT) Received: from LAPTOPK7AS653V ([195.166.134.68]) (authenticated bits=0) by asmtp3.iomartmail.com (8.14.4/8.14.4) with ESMTP id 024MA58M013957 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 4 Mar 2020 22:10:05 GMT Reply-To: From: "Adrian Farrel" To: Cc: References: <002101d5c415$6e064680$4a12d380$@olddog.co.uk> <07c501d5c7d3$9d4f3b60$d7edb220$@olddog.co.uk> In-Reply-To: Date: Wed, 4 Mar 2020 22:10:04 -0000 Organization: Old Dog Consulting Message-ID: <078e01d5f271$a888edf0$f99ac9d0$@olddog.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQJY0TFaFNXT/jcA8ggyNpSwKvBeoQD+i/k3AgBJCbMBBZC4p6cS1jkA Content-Language: en-gb X-Originating-IP: 195.166.134.68 X-Thinkmail-Auth: adrian@olddog.co.uk X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSVA-9.0.0.1623-8.2.0.1013-25270.003 X-TM-AS-Result: No--17.969-10.0-31-10 X-imss-scan-details: No--17.969-10.0-31-10 X-TMASE-Version: IMSVA-9.0.0.1623-8.2.1013-25270.003 X-TMASE-Result: 10--17.968600-10.000000 X-TMASE-MatchedRID: IeZYkn8zfFrxIbpQ8BhdbBZe+w8sdYYaRiPTMMc/Mmn22R14ijZDjCi4 PQH9BFxL3bzvU6za9nD2hz44pynUHc7eljtqnG9WypiC33/79mcZskwWqoib3Jl8NETW6pKC42W uQY4IJB5c1v3k9wIeClAI8COXskjsRm/RfcFi/W9uh7qwx+D6T+dppbZRNp/I3FJULPGBSs67im J4LbFoqbNT8povc+7RvqW2U1BYUaJYtc4ZGS+dqYeAntdoMxBaMf5Pdi+0fLZjQ6o1zjtGHngWt 5DwssvIqfZdm7CFymy1NDW2ubtl8L4yBTF9emc57pujb8urdzYXnM0Bi4lHbi62hjZS0WoYw+eI 9NS3+fTD+icy+t1yfXphkJQHW2b9r9Xz9yCPONL805SSvoAPN0yQ5fRSh265T0IkL8xYhnilXLD Wgtdj/nSYMn8Dq9ZfKMc/LLFBYmzGeIUisV1G+bRStmZTxM8RmAQwMiIyxlSynk7TnYzMuiVCmT vDV2+nzfeXeyvceUyXjjGjP9WQ/mCXKwMj/6bWLGDmqzfHOB9RvgR0hkbG4L59Yrw3aQCHFF8DU jc6WqryKc8DS1523gJCJ4YVSNxRX0NNah2S8aVFeAr5guIYJgeCHewokHM/gOlK2zN496luzR9E VKQEHWvVibKxVuLZ0BkpfhIXys4TtsHJ1ZxlTDA2Ejh8jKICB4bXdj887A9QKAQSutQYXAKJH9O Qtm+kpJ0OYMrT0ynogpTfHZQQINuwvQXo1tqWiPwLZYCrvPb3+mUqDWUKyFrXKFPCbXO5nnoaR/ 3NxyzjMDx5N2jfwPbE9hfTw1ey84wlaZlBms6eAiCmPx4NwFkMvWAuahr8m5N2YHMD0b8MyrfP9 j+C1d934/rDAK3zhG2qikEpQGX8JRIRg3z5KfeAoui4jggoB2ZuxT8FgwaNijco0BdAa6vomCNY SdAV X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 Archived-At: Subject: Re: [Pce] A discussion point for draft-ietf-pce-pcep-flowspec X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Mar 2020 22:10:14 -0000 Hi all, AFAICS, no one else has pitched in on this debate (so we can't really = call it a debate). The easiest approach to keeping everyone (i.e., Pavan) happy is to take = the following approach. > 2. Introduce a new flag in the FLOWSPEC object to explicitly = indicate > that routes subject to LPM based forwarding MUST be installed. When = this > flag is set, the FLOWSPEC object MUST carry only destination = IPv4/IPv6 TLVs. The way I propose to handle it is to add a flag to the FLOWSPEC object = with meaning: - clear: Use the Flow Filter TLV as a "flow specification"=20 - set: Use the Flow Filter TLV to install a Longest Prefix Match route Define a new error "FlowSpec Error" : "Unsupported LPM Route" for use = when the receiver does not support installing an LPM route for the Flow = Filter TLV. An introductory sentence is also added saying: =20 How an=20 implementation decides how to filter traffic that matches a Flow = Specification does not form part of this specification, but a flag is provided to indicate that = the sender of a PCEP message that includes a Flow Specification is intended to be = installed as a Longest Prefix Match route, or as a Flow Specification policy. I'll make the changes to the document, but note that we are well past WG = last call. I hope that with the change we will be able to move ahead. Look out for the new revision. Best, Adrian -----Original Message----- From: Vishnu Pavan Beeram =20 Sent: 13 January 2020 12:23 To: Adrian Farrel Cc: pce@ietf.org; draft-ietf-pce-pcep-flowspec@ietf.org Subject: Re: [Pce] A discussion point for draft-ietf-pce-pcep-flowspec Adrian, Hi! Please see inline.. Regards, -Pavan On Fri, Jan 10, 2020 at 10:32 AM Adrian Farrel = wrote: > Thanks Pavan, > > It=E2=80=99s good to have this documented clearly. > > Personally, I am amused/confused that **how** packets are intercepted = for > classification (via a routing entry or via a data plane filter) is > important to the specification of this protocol. That is, the protocol = says > =E2=80=9Cpackets that match this flowspec MUST be placed on this = LSP/path=E2=80=9D. How an > implementation chooses to achieve that is, IMHO, not material to the > on-the-wire behaviour. That is, the packets will come in and will be = placed > on the path, and the protocol instructions to achieve it do not need = to > tell anyone how to achieve it. > > This is probably closest to your option 1. That is, an implementation = may > choose to implement this however it wants. > > It would be wrong, also IMHO, to imply that an implementation must = install > a data plane filter to handle PCEP flowspecs. That depends (of course) = on > how you define a data plane filter. Existing (network element) implementations have config knobs that distinguish between adding a filter rule to steer traffic onto the path = of a tunnel and installing a resolver route (LPM based forwarding). And = like with most TE-Tunnel/TE-Policy specific config knobs, there seems to be a strong desire to let the Controller push/control these knobs. That is = where my options 2 and 3 come in. > As to draft-ietf-pce-binding-label-sid, I fear I detect mission creep. > What was originally a simple association of a binding SID to a PCEP = message > now also has an element of flowspec built in. I wonder whether that > document shouldn=E2=80=99t refer to draft-ietf-pce-flowspec if it = wants to describe > what traffic to associate with a path. I'm not sure about mission creep, but the association of a binding type = to a path does (already) describe the type of traffic steered onto the = path. It results in the installation of a keyed entry in the forwarding plane with the action of steering the packets matching this entry to the = selected path of the policy. Given the precedent, adding a couple of new binding types for destination prefixes seems appropriate. > Like you, I would like to hear more from the working group. Yeah, looking forward to see some opinions come in on this. > *From:* Vishnu Pavan Beeram > *Sent:* 10 January 2020 05:45 > *To:* Adrian Farrel > *Cc:* pce@ietf.org; draft-ietf-pce-pcep-flowspec@ietf.org > *Subject:* Re: [Pce] A discussion point for = draft-ietf-pce-pcep-flowspec > > Adrian, Hi! > > Much Thanks for starting this thread! There are multiple = implementations > that support user-triggered installation/uninstallation of > destination-IPv4/IPv6 prefixes bound to a TE Path (installation of = routes > subject to longest prefix match based forwarding) and it is important = to > have this behavior covered in PCEP. > > I=E2=80=99m listing 3 options that were considered for addressing this = item: > > 1. Add a new sub-section to Section 8 of > stating that an implementation = receiving a > FLOWSPEC object that carries only destination IPv4/IPv6 TLVs may = choose to > not install any data-plane filters and instead install routes that = are > subject to longest prefix match (LPM) based forwarding. With this = option, > the controller has no say in how the network element processes = these > destination IPV4/IPv6 TLVs. > 2. Introduce a new flag in the FLOWSPEC object to explicitly = indicate > that routes subject to LPM based forwarding MUST be installed. When = this > flag is set, the FLOWSPEC object MUST carry only destination = IPv4/IPv6 TLVs. > 3. Do not use the FLOWSPEC object at all for this; Use the > TE-PATH-BINDING TLV (introduced by = draft-ietf-pce-binding-label-sid) > instead. This requires the addition of a couple of new Binding = Types (BT) > to indicate destination-IPV4 and destination-IPv6 bindings. This = also > requires us to add the ability to encode multiple Path Bindings = (list) > in the same message and the ability to remove specific Path = Bindings in a > given message. > > Based on some offline conversations with interested parties, there is = a > strong need to have an explicit indication for this type of behavior = (avoid > ambiguity with respect to filtering) -- so that makes Option 1 = undesirable. > There is also a requirement to carry a mix of install and uninstall > destination prefixes associated with a path in the same message. The = way > the FLOWSPEC object is currently defined (the R flag is specified per > FLOWSPEC object and not per TLV; parity with BGP), you would need one > object to carry the install prefixes and one more to carry the = uninstall > prefixes. Given all this, there is some consensus among interested = parties > to implement this behavior using the TE-PATH-BINDING TLV. Note that = this > also means that draft-ietf-pce-pcep-flowspec can proceed as is. > > @WG -- Any thoughts? > > Regards, > > -Pavan > > On Sun, Jan 5, 2020 at 4:14 PM Adrian Farrel = wrote: > > Hi WG, > > I received a couple of private emails about = draft-ietf-pce-pcep-flowspec. > > Since they were private, I will try to be circumspect about who they = were > from. > > The sender asked to have a flag attached to a flow specification that > indicates that it can be installed as a static route and thus not = subject > to a firewall rule so the longest prefix matching can be performed to > manipulate route resolution for an LSP. > > The request also said that traditionally flow-specifications result in > firewall rules and those rules operate on packets before longest = prefix > match. We want to install static routes, the equivalent of installing = a > prefix for an LSP and if we treat a flowspec as a static route we can = mess > things up like rule ordering and so on. > > The sender suggested that there are currently some draft(s) regarding = this > behavior for BGP flowspec as well, but was not able to point me at = them. > > I asked for some clarifications and got back: > > "What BGP-FS does is install data-plane filters. We handle that by > installing RIB entries (that's what BGP carries) into a RIB. Those = entries > are transformed into firewall filters. What I am asking for is not > currently supported by BGP-flowspec. > > "What I am asking for is an indication that a flow-specification NOT = be > transformed into a data-plane filter. In other words, installed as a > normal route where the route is subject to longest prefix match based > forwarding From nobody Wed Mar 4 14:44:30 2020 Return-Path: X-Original-To: pce@ietf.org Delivered-To: pce@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id E2F313A0AFB; Wed, 4 Mar 2020 14:44:17 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: pce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.119.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: pce@ietf.org Message-ID: <158336185776.29475.3003086444431140129@ietfa.amsl.com> Date: Wed, 04 Mar 2020 14:44:17 -0800 Archived-At: Subject: [Pce] I-D Action: draft-ietf-pce-pcep-flowspec-08.txt X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Mar 2020 22:44:18 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Path Computation Element WG of the IETF. Title : PCEP Extension for Flow Specification Authors : Dhruv Dhody Adrian Farrel Zhenbin Li Filename : draft-ietf-pce-pcep-flowspec-08.txt Pages : 33 Date : 2020-03-04 Abstract: The Path Computation Element (PCE) is a functional component capable of selecting paths through a traffic engineering network. These paths may be supplied in response to requests for computation, or may be unsolicited instructions issued by the PCE to network elements. Both approaches use the PCE Communication Protocol (PCEP) to convey the details of the computed path. Traffic flows may be categorized and described using "Flow Specifications". RFC XXXX defines the Flow Specification and describes how Flow Specification Components are used to describe traffic flows. RFC XXXX also defines how Flow Specifications may be distributed in BGP to allow specific traffic flows to be associated with routes. This document specifies a set of extensions to PCEP to support dissemination of Flow Specifications. This allows a PCE to indicate what traffic should be placed on each path that it is aware of. RFC Editor Note: Please replace XXXX in the Abstract with the RFC number assigned to draft-ietf-idr-rfc5575bis when it is published. Please remove this note. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-pcep-flowspec/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-pce-pcep-flowspec-08 https://datatracker.ietf.org/doc/html/draft-ietf-pce-pcep-flowspec-08 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-pcep-flowspec-08 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Thu Mar 5 04:24:35 2020 Return-Path: X-Original-To: pce@ietf.org Delivered-To: pce@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 91BF93A13B3; Thu, 5 Mar 2020 04:24:32 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Dhruv Dhody via Datatracker To: X-Test-IDTracker: no X-IETF-IDTracker: 6.119.0 Auto-Submitted: auto-generated Precedence: bulk Cc: adrian@olddog.co.uk, pce-chairs@ietf.org, pce@ietf.org, iesg-secretary@ietf.org, Adrian Farrel Message-ID: <158341107258.14525.1088008286547877981@ietfa.amsl.com> Date: Thu, 05 Mar 2020 04:24:32 -0800 Archived-At: Subject: [Pce] Publication has been requested for draft-ietf-pce-stateful-pce-lsp-scheduling-12 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Mar 2020 12:24:33 -0000 Dhruv Dhody has requested publication of draft-ietf-pce-stateful-pce-lsp-scheduling-12 as Proposed Standard on behalf of the PCE working group. 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Fri, 6 Mar 2020 17:14:53 +0000 From: "Stone, Andrew (Nokia - CA/Ottawa)" To: "pce@ietf.org" Thread-Topic: New Version Notification for draft-stone-pce-local-protection-enforcement-00.txt Thread-Index: AQHV8LAlX25e8CaRakeOwDgMwEGUgag7gFWA Date: Fri, 6 Mar 2020 17:14:53 +0000 Message-ID: References: <158316673618.27361.7017725094379697473@ietfa.amsl.com> In-Reply-To: <158316673618.27361.7017725094379697473@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/10.22.0.200209 authentication-results: spf=none (sender IP is ) smtp.mailfrom=andrew.stone@nokia.com; x-originating-ip: [135.245.20.25] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 35a0e3d6-eb7a-44aa-e7ef-08d7c1f1e2fc x-ms-traffictypediagnostic: DM6PR08MB4747: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:7691; x-forefront-prvs: 0334223192 x-forefront-antispam-report: SFV:NSPM; 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charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: nokia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 35a0e3d6-eb7a-44aa-e7ef-08d7c1f1e2fc X-MS-Exchange-CrossTenant-originalarrivaltime: 06 Mar 2020 17:14:53.4769 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 5d471751-9675-428d-917b-70f44f9630b0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: qYL4sTxw7+uI8WOnKAIq9dECYkle63UIMUeVWeeaZEytCbZENtf1Uacs/ABjHrQNDkIvAE+80/7H4ZTmblIoog== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR08MB4747 Archived-At: Subject: [Pce] FW: New Version Notification for draft-stone-pce-local-protection-enforcement-00.txt X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Mar 2020 17:15:02 -0000 SGkgUENFIFdHLA0KDQpUaGlzIGRyYWZ0IHdhcyB1cGRhdGVkIHRvIGluY2x1ZGUgdGhlIGZvbGxv d2luZzoNCg0KLSBEcmFmdCByZW5hbWVkIHRvIHJlZmxlY3QgdGhpcyBpcyBmb3IgImxvY2FsIiBw cm90ZWN0aW9uIGVuZm9yY2VtZW50ICh1c2VkIHRvIGJlIGNhbGxlZCBwYXRoLXByb3RlY3Rpb24p DQotIG5ldyBjbyBhdXRob3INCi0gQWRkZWQgbW9yZSB0ZXh0IHJlZ2FyZGluZyB0aGUgdmFyaW91 cyB1c2UgY2FzZXMgLyB3aHkgYSB1c2VyIG1heSB3YW50IHRoZXNlIG9wdGlvbnMNCi0gQWRkZWQg dGV4dCBkaXNjdXNzaW5nIHNpdHVhdGlvbnMgb2Ygbm8gcHJlZmVyZW5jZSAvICJubyBub3QgY2Fy ZSINCg0KVGhhbmtzDQpBbmRyZXcNCg0KDQoNCu+7v09uIDIwMjAtMDMtMDIsIDExOjMyIEFNLCAi aW50ZXJuZXQtZHJhZnRzQGlldGYub3JnIiA8aW50ZXJuZXQtZHJhZnRzQGlldGYub3JnPiB3cm90 ZToNCg0KICAgIA0KICAgIEEgbmV3IHZlcnNpb24gb2YgSS1ELCBkcmFmdC1zdG9uZS1wY2UtbG9j YWwtcHJvdGVjdGlvbi1lbmZvcmNlbWVudC0wMC50eHQNCiAgICBoYXMgYmVlbiBzdWNjZXNzZnVs bHkgc3VibWl0dGVkIGJ5IEFuZHJldyBTdG9uZSBhbmQgcG9zdGVkIHRvIHRoZQ0KICAgIElFVEYg cmVwb3NpdG9yeS4NCiAgICANCiAgICBOYW1lOgkJZHJhZnQtc3RvbmUtcGNlLWxvY2FsLXByb3Rl Y3Rpb24tZW5mb3JjZW1lbnQNCiAgICBSZXZpc2lvbjoJMDANCiAgICBUaXRsZToJCUxvY2FsIFBy b3RlY3Rpb24gRW5mb3JjZW1lbnQgaW4gUENFUA0KICAgIERvY3VtZW50IGRhdGU6CTIwMjAtMDMt MDINCiAgICBHcm91cDoJCUluZGl2aWR1YWwgU3VibWlzc2lvbg0KICAgIFBhZ2VzOgkJOA0KICAg IFVSTDogICAgICAgICAgICBodHRwczovL3d3dy5pZXRmLm9yZy9pbnRlcm5ldC1kcmFmdHMvZHJh ZnQtc3RvbmUtcGNlLWxvY2FsLXByb3RlY3Rpb24tZW5mb3JjZW1lbnQtMDAudHh0DQogICAgU3Rh dHVzOiAgICAgICAgIGh0dHBzOi8vZGF0YXRyYWNrZXIuaWV0Zi5vcmcvZG9jL2RyYWZ0LXN0b25l LXBjZS1sb2NhbC1wcm90ZWN0aW9uLWVuZm9yY2VtZW50Lw0KICAgIEh0bWxpemVkOiAgICAgICBo dHRwczovL3Rvb2xzLmlldGYub3JnL2h0bWwvZHJhZnQtc3RvbmUtcGNlLWxvY2FsLXByb3RlY3Rp b24tZW5mb3JjZW1lbnQtMDANCiAgICBIdG1saXplZDogICAgICAgaHR0cHM6Ly9kYXRhdHJhY2tl ci5pZXRmLm9yZy9kb2MvaHRtbC9kcmFmdC1zdG9uZS1wY2UtbG9jYWwtcHJvdGVjdGlvbi1lbmZv cmNlbWVudA0KICAgIA0KICAgIA0KICAgIEFic3RyYWN0Og0KICAgICAgIFRoaXMgZG9jdW1lbnQg YWltcyB0byBjbGFyaWZ5IGV4aXN0aW5nIHVzYWdlIG9mIHRoZSBsb2NhbCBwcm90ZWN0aW9uDQog ICAgICAgZGVzaXJlZCBiaXQgc2lnbmFsbGVkIGluIFBhdGggQ29tcHV0YXRpb24gRWxlbWVudCBQ cm90b2NvbCAoUENFUCkuDQogICAgICAgVGhpcyBkb2N1bWVudCBhbHNvIGludHJvZHVjZXMgYSBu ZXcgZmxhZyBmb3Igc2lnbmFsbGluZyBwcm90ZWN0aW9uDQogICAgICAgc3RyaWN0bmVzcyBpbiBQ Q0VQLg0KICAgIA0KICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICANCiAgICANCiAgICANCiAg ICBQbGVhc2Ugbm90ZSB0aGF0IGl0IG1heSB0YWtlIGEgY291cGxlIG9mIG1pbnV0ZXMgZnJvbSB0 aGUgdGltZSBvZiBzdWJtaXNzaW9uDQogICAgdW50aWwgdGhlIGh0bWxpemVkIHZlcnNpb24gYW5k IGRpZmYgYXJlIGF2YWlsYWJsZSBhdCB0b29scy5pZXRmLm9yZy4NCiAgICANCiAgICBUaGUgSUVU RiBTZWNyZXRhcmlhdA0KICAgIA0KICAgIA0KICAgIA0KDQo= From nobody Sun Mar 8 23:41:32 2020 Return-Path: X-Original-To: pce@ietf.org Delivered-To: pce@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 667213A0474; Sun, 8 Mar 2020 23:41:29 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: pce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.120.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: pce@ietf.org Message-ID: <158373608934.6850.2434255939024978505@ietfa.amsl.com> Date: Sun, 08 Mar 2020 23:41:29 -0700 Archived-At: Subject: [Pce] I-D Action: draft-ietf-pce-pcep-extension-for-pce-controller-04.txt X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Mar 2020 06:41:31 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Path Computation Element WG of the IETF. Title : PCEP Procedures and Protocol Extensions for Using PCE as a Central Controller (PCECC) of LSPs Authors : Quintin Zhao Zhenbin Li Mahendra Singh Negi Shuping Peng Chao Zhou Filename : draft-ietf-pce-pcep-extension-for-pce-controller-04.txt Pages : 34 Date : 2020-03-08 Abstract: The Path Computation Element (PCE) is a core component of Software- Defined Networking (SDN) systems. It can compute optimal paths for traffic across a network and can also update the paths to reflect changes in the network or traffic demands. PCE was developed to derive paths for MPLS Label Switched Paths (LSPs), which are supplied to the head end of the LSP using the Path Computation Element Communication Protocol (PCEP). But SDN has a broader applicability than signaled (G)MPLS traffic-engineered (TE) networks, and the PCE may be used to determine paths in a range of use cases. PCEP has been proposed as a control protocol for use in these environments to allow the PCE to be fully enabled as a central controller. A PCE-based central controller (PCECC) can simplify the processing of a distributed control plane by blending it with elements of SDN and without necessarily completely replacing it. Thus, the LSP can be calculated/setup/initiated and the label forwarding entries can also be downloaded through a centralized PCE server to each network devices along the path while leveraging the existing PCE technologies as much as possible. This document specifies the procedures and PCEP protocol extensions for using the PCE as the central controller. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-pcep-extension-for-pce-controller/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-pce-pcep-extension-for-pce-controller-04 https://datatracker.ietf.org/doc/html/draft-ietf-pce-pcep-extension-for-pce-controller-04 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-pcep-extension-for-pce-controller-04 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Mon Mar 9 05:48:19 2020 Return-Path: X-Original-To: pce@ietf.org Delivered-To: pce@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 9EDDE3A0EAF; Mon, 9 Mar 2020 05:48:14 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: pce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.120.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: pce@ietf.org Message-ID: <158375809458.13975.6446392052871661561@ietfa.amsl.com> Date: Mon, 09 Mar 2020 05:48:14 -0700 Archived-At: Subject: [Pce] I-D Action: draft-ietf-pce-segment-routing-ipv6-04.txt X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Mar 2020 12:48:15 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Path Computation Element WG of the IETF. Title : PCEP Extensions for Segment Routing leveraging the IPv6 data plane Authors : Mahendra Singh Negi Cheng Li Siva Sivabalan Prejeeth Kaladharan Yongqing Zhu Filename : draft-ietf-pce-segment-routing-ipv6-04.txt Pages : 22 Date : 2020-03-09 Abstract: The Source Packet Routing in Networking (SPRING) architecture describes how Segment Routing (SR) can be used to steer packets through an IPv6 or MPLS network using the source routing paradigm. SR enables any head-end node to select any path without relying on a hop-by-hop signaling technique (e.g., LDP or RSVP-TE). It depends only on "segments" that are advertised by Link- State IGPs. A Segment Routed Path can be derived from a variety of mechanisms, including an IGP Shortest Path Tree (SPT), explicit configuration, or a Path Computation Element (PCE). Since SR can be applied to both MPLS and IPv6 forwarding plane, a PCE should be able to compute SR-Path for both MPLS and IPv6 forwarding plane. This document describes the extensions required for SR support for IPv6 data plane in Path Computation Element communication Protocol (PCEP). The PCEP extension and mechanism to support SR-MPLS is described in RFC 8664. This document extends it to support SRv6 (SR over IPv6). The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-segment-routing-ipv6/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-pce-segment-routing-ipv6-04 https://datatracker.ietf.org/doc/html/draft-ietf-pce-segment-routing-ipv6-04 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-segment-routing-ipv6-04 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Mon Mar 9 06:52:05 2020 Return-Path: X-Original-To: pce@ietf.org Delivered-To: pce@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 901D93A1076; Mon, 9 Mar 2020 06:51:51 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: pce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.120.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: pce@ietf.org Message-ID: <158376191150.13802.14533648510569984921@ietfa.amsl.com> Date: Mon, 09 Mar 2020 06:51:51 -0700 Archived-At: Subject: [Pce] I-D Action: draft-ietf-pce-binding-label-sid-02.txt X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Mar 2020 13:52:01 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Path Computation Element WG of the IETF. Title : Carrying Binding Label/Segment-ID in PCE-based Networks. Authors : Siva Sivabalan Clarence Filsfils Jeff Tantsura Jonathan Hardwick Stefano Previdi Cheng Li Filename : draft-ietf-pce-binding-label-sid-02.txt Pages : 16 Date : 2020-03-09 Abstract: In order to provide greater scalability, network opacity, and service independence, Segment Routing (SR) utilizes a Binding Segment Identifier (BSID). It is possible to associate a BSID to RSVP-TE signaled Traffic Engineering Label Switching Path or binding Segment- ID (SID) to SR Traffic Engineering path. Such a binding label/SID can be used by an upstream node for steering traffic into the appropriate TE path to enforce SR policies. This document proposes an approach for reporting binding label/SID to Path Computation Element (PCE) for supporting PCE-based Traffic Engineering policies. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-binding-label-sid/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-pce-binding-label-sid-02 https://datatracker.ietf.org/doc/html/draft-ietf-pce-binding-label-sid-02 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-binding-label-sid-02 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Mon Mar 9 07:26:12 2020 Return-Path: X-Original-To: pce@ietf.org Delivered-To: pce@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 596303A10EE; Mon, 9 Mar 2020 07:25:58 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: pce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.120.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: pce@ietf.org Message-ID: <158376395829.13945.4847002324240342727@ietfa.amsl.com> Date: Mon, 09 Mar 2020 07:25:58 -0700 Archived-At: Subject: [Pce] I-D Action: draft-ietf-pce-association-policy-08.txt X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Mar 2020 14:26:08 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Path Computation Element WG of the IETF. Title : Path Computation Element communication Protocol (PCEP) extension for associating Policies and Label Switched Paths (LSPs) Authors : Stephane Litkowski Siva Sivabalan Jeff Tantsura Jonathan Hardwick Mahendra Singh Negi Cheng Li Filename : draft-ietf-pce-association-policy-08.txt Pages : 15 Date : 2020-03-09 Abstract: This document introduces a simple mechanism to associate policies to a group of Label Switched Paths (LSPs) via an extension to the Path Computation Element (PCE) Communication Protocol (PCEP). The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-association-policy/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-pce-association-policy-08 https://datatracker.ietf.org/doc/html/draft-ietf-pce-association-policy-08 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-association-policy-08 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Mon Mar 9 19:43:06 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id F25EB3A0DA5 for ; Mon, 9 Mar 2020 19:39:51 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CPIv1XNVno6e for ; Mon, 9 Mar 2020 19:39:50 -0700 (PDT) Received: from rfc-editor.org (rfc-editor.org [4.31.198.49]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3BEE03A0DA3 for ; Mon, 9 Mar 2020 19:39:50 -0700 (PDT) Received: by rfc-editor.org (Postfix, from userid 30) id 8FB34F406D1; Mon, 9 Mar 2020 19:39:47 -0700 (PDT) To: edward.crabbe@oracle.com, inaminei@google.com, jmedved@cisco.com, robert.varga@pantheon.tech, db3546@att.com, aretana.ietf@gmail.com, martin.vigoureux@nokia.com, dhruv.ietf@gmail.com, julien.meuric@orange.com X-PHP-Originating-Script: 30:errata_mail_lib.php From: RFC Errata System Cc: dhruv.ietf@gmail.com, pce@ietf.org, rfc-editor@rfc-editor.org Content-Type: text/plain; charset=UTF-8 Message-Id: <20200310023947.8FB34F406D1@rfc-editor.org> Date: Mon, 9 Mar 2020 19:39:47 -0700 (PDT) Archived-At: X-Mailman-Approved-At: Mon, 09 Mar 2020 19:43:03 -0700 Subject: [Pce] [Editorial Errata Reported] RFC8231 (6012) X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Mar 2020 02:39:52 -0000 The following errata report has been submitted for RFC8231, "Path Computation Element Communication Protocol (PCEP) Extensions for Stateful PCE". -------------------------------------- You may review the report below and at: https://www.rfc-editor.org/errata/eid6012 -------------------------------------- Type: Editorial Reported by: Dhruv Dhody Section: 5.8.3 Original Text ------------- If the PCC receives a PCUpd message for an LSP object identified with a PLSP-ID that does not exist on the PCC, it MUST generate a PCErr with Error-type=19 (Invalid Operation), error-value 3, (Attempted LSP Update Request for an LSP identified by an unknown PSP-ID) (see Section 8.5). Corrected Text -------------- If the PCC receives a PCUpd message for an LSP object identified with a PLSP-ID that does not exist on the PCC, it MUST generate a PCErr with Error-type=19 (Invalid Operation), error-value 3, (Attempted LSP Update Request for an LSP identified by an unknown PLSP-ID) (see Section 8.5). Notes ----- s/PSP-ID/PLSP-ID/ Thanks to Rebecca Vanrheenen from RFC Editor team for spotting this while editing another I-D. Instructions: ------------- This erratum is currently posted as "Reported". If necessary, please use "Reply All" to discuss whether it should be verified or rejected. When a decision is reached, the verifying party can log in to change the status and edit the report, if necessary. -------------------------------------- RFC8231 (draft-ietf-pce-stateful-pce-21) -------------------------------------- Title : Path Computation Element Communication Protocol (PCEP) Extensions for Stateful PCE Publication Date : September 2017 Author(s) : E. Crabbe, I. Minei, J. Medved, R. Varga Category : PROPOSED STANDARD Source : Path Computation Element Area : Routing Stream : IETF Verifying Party : IESG From nobody Mon Mar 9 21:51:05 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 492F53A0529; Mon, 9 Mar 2020 21:50:33 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TThB9xcSSePT; Mon, 9 Mar 2020 21:50:29 -0700 (PDT) Received: from rfc-editor.org (rfc-editor.org [4.31.198.49]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 402473A0496; Mon, 9 Mar 2020 21:50:29 -0700 (PDT) Received: by rfc-editor.org (Postfix, from userid 30) id 78801F406F0; Mon, 9 Mar 2020 21:50:26 -0700 (PDT) To: ietf-announce@ietf.org, rfc-dist@rfc-editor.org X-PHP-Originating-Script: 1005:ams_util_lib.php From: rfc-editor@rfc-editor.org Cc: rfc-editor@rfc-editor.org, drafts-update-ref@iana.org, pce@ietf.org Content-type: text/plain; charset=UTF-8 Message-Id: <20200310045026.78801F406F0@rfc-editor.org> Date: Mon, 9 Mar 2020 21:50:26 -0700 (PDT) Archived-At: Subject: [Pce] =?utf-8?q?RFC_8741_on_Ability_for_a_Stateful_Path_Computat?= =?utf-8?q?ion_Element_=28PCE=29_to_Request_and_Obtain_Control_of_a_Label_?= =?utf-8?q?Switched_Path_=28LSP=29?= X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Mar 2020 04:50:34 -0000 A new Request for Comments is now available in online RFC libraries. RFC 8741 Title: Ability for a Stateful Path Computation Element (PCE) to Request and Obtain Control of a Label Switched Path (LSP) Author: A. Raghuram, A. Goddard, J. Karthik, S. Sivabalan, M. Negi Status: Standards Track Stream: IETF Date: March 2020 Mailbox: ar2521@att.com, ag6941@att.com, jakarthi@cisco.com, msiva@cisco.com, mahend.ietf@gmail.com Pages: 11 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-pce-lsp-control-request-11.txt URL: https://www.rfc-editor.org/info/rfc8741 DOI: 10.17487/RFC8741 A stateful Path Computation Element (PCE) retains information about the placement of Multiprotocol Label Switching (MPLS) Traffic Engineering Label Switched Paths (TE LSPs). When a PCE has stateful control over LSPs, it may send indications to LSP head-ends to modify the attributes (especially the paths) of the LSPs. A Path Computation Client (PCC) that has set up LSPs under local configuration may delegate control of those LSPs to a stateful PCE. There are use cases in which a stateful PCE may wish to obtain control of locally configured LSPs that it is aware of but have not been delegated to the PCE. This document describes an extension to the Path Computation Element Communication Protocol (PCEP) to enable a PCE to make requests for such control. This document is a product of the Path Computation Element Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC From nobody Wed Mar 11 03:21:28 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 13CDB3A1655; Wed, 11 Mar 2020 03:21:26 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.098 X-Spam-Level: X-Spam-Status: No, score=-2.098 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GNvhljsSN0oR; Wed, 11 Mar 2020 03:21:24 -0700 (PDT) Received: from mail-il1-x129.google.com (mail-il1-x129.google.com [IPv6:2607:f8b0:4864:20::129]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id ADD683A1651; Wed, 11 Mar 2020 03:21:24 -0700 (PDT) Received: by mail-il1-x129.google.com with SMTP id k29so1484559ilg.0; Wed, 11 Mar 2020 03:21:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=IoFHeFvie9E+zh1pDTYLefrgDKnnTGlApZ+9YlICCUs=; b=YT3YUgeR8A9aD0XixKYvLnw6Z8dhtXM4k3yt8PgJQ95FqCh879ODSaJ2G7s+/2tYaq yuUbFuoeqs2O+wfFt6Tj9jpXz1qhbBPpKHihciSqAZvtuV4xE7Vavtg6KvQWOjv1xH8F +lXh3Y+v2u4lh71+MgkEL75lE4L8zz0NK04zI4ZNMa+SzGnxLkbmiBFlqlEiAw+y+E3y fksabYvxg5Ja12ChC+E3HmFl9Qa0YIwPYfTuFizQL6M24NgUAUHluoIRHq3b1Aqjrlci Ex8Pb41rrdoDnSffu5FECC1O5YJ2zobVRqupUcQJkbfldn4NcP1ucRubCIN744ConnHl pvmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=IoFHeFvie9E+zh1pDTYLefrgDKnnTGlApZ+9YlICCUs=; b=p5Nu9bKNoErlzMhFac9pKMToyxDhpI4XyVNAFC5FZljnuGAyoHGIe5NZzmXDc7Kzs9 a62zAvuYt7MedpJo9ARw7adohLO5Opug/W08lpaS01FmjtbWdZtgEl9bzUlo2253Qu8R p/qxFBcMuawNGvkWQM75BWN8uhWqOz02uqq+uqCsdSnwjxblCsBaQ3TGYKu2tJ0X7vFO aIZNJb0neVqQPaK1LhGqchqk3HnRtzCN/9n3JvMTMhKkhaS2EfjekZ/sEOSNMLhuhsGe 2tYOLhN8/EIElEFB7anic0xvmTbnOV1yybgrJnwnPl+ervo7bKwWxu0QwpNle/Vxek31 1ITQ== X-Gm-Message-State: ANhLgQ1Uam3PLI/aq4XJFjz1WS0vGKgVhMcMibonuyv7DlwJpR4+eJkL gub7OxMRNN27oFlzwmbJq63XRgbTHe2TkSA7Qqmy42mS X-Google-Smtp-Source: ADFU+vt35vvYL5MZDOUwVVHIP7weO+mKwa5q2UoR5lJVwypBmYdSwS2qlrLgSEIHpedXg5lX/Hu3zqLzO4ibSWTzoYo= X-Received: by 2002:a92:8f4b:: with SMTP id j72mr2401490ild.1.1583922083399; Wed, 11 Mar 2020 03:21:23 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Dhruv Dhody Date: Wed, 11 Mar 2020 15:50:47 +0530 Message-ID: To: pce@ietf.org Cc: pce-chairs Content-Type: text/plain; charset="UTF-8" Archived-At: Subject: Re: [Pce] Agenda building for IETF 107 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Mar 2020 10:21:26 -0000 Hi WG, By now you would have seen the note from the IESG regarding the in-person IETF 107 meeting [1]. We are still waiting for further instructions on further planning of the virtual WG session. Please bear with us. We are still accepting slot request on the WG agenda, please make the request SOON, this would also help us in planning the virtual WG meeting. In the meantime, the mailing list is always open for business, please use it to describe the motivation for your new drafts, list updates to your existing I-Ds, discuss open issues etc. Take care! Dhruv & Julien [1] https://mailarchive.ietf.org/arch/msg/ietf/wxgxvqtHNdtuHqoXAjSqJulrrCA/ On Wed, Mar 4, 2020 at 11:12 AM Dhruv Dhody wrote: > > Hi WG, > > The PCE WG session in Vancouver is scheduled for Tuesday Afternoon > session I [1]. If you need some face-to-face time to progress some > work, please send a slot request to the chairs/secretary directly by > Friday March 13th including: > - the draft(s) you want to discuss, > - the expected presenter name, (mention clearly if the presenter would > be remote) > - the requested duration, including question time as part of the slot, > - the reason why you want to be on the agenda; What do you want to > achieve? Why is a presentation necessary to achieve it? > > Please note - Asking for a slot does not mean you will get one. We > will be prioritizing moving WG work first as well as drafts that were > discussed on the mailing list. Please make sure to introduce your new > draft or summarize an update in the mailing list. The last date to > submit drafts is Monday March 9th [2]. > > Thanks! > PCE Chairs & Secretary > > [1] https://datatracker.ietf.org/meeting/107/agenda.html > [2] https://datatracker.ietf.org/meeting/important-dates/ From nobody Fri Mar 13 14:55:36 2020 Return-Path: X-Original-To: pce@ietf.org Delivered-To: pce@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id C95303A10C7; Fri, 13 Mar 2020 14:55:33 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: pce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.121.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: pce@ietf.org Message-ID: <158413653373.3141.14521038194961239550@ietfa.amsl.com> Date: Fri, 13 Mar 2020 14:55:33 -0700 Archived-At: Subject: [Pce] I-D Action: draft-ietf-pce-association-bidir-06.txt X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Mar 2020 21:55:34 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Path Computation Element WG of the IETF. Title : PCEP Extensions for Associated Bidirectional Label Switched Paths (LSPs) Authors : Rakesh Gandhi Colby Barth Bin Wen Filename : draft-ietf-pce-association-bidir-06.txt Pages : 19 Date : 2020-03-13 Abstract: The Path Computation Element Communication Protocol (PCEP) provides mechanisms for Path Computation Elements (PCEs) to perform path computations in response to Path Computation Clients (PCCs) requests. The Stateful PCE extensions allow stateful control of Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Label Switched Paths (LSPs) using PCEP. This document defines PCEP extensions for grouping two unidirectional MPLS TE LSPs (one in each direction in the network) into an Associated Bidirectional LSP. The mechanisms defined in this document can be applied using a Stateful PCE for both PCE-Initiated and PCC-Initiated LSPs, as well as when using a Stateless PCE. The procedures defined are applicable to the LSPs using Resource Reservation Protocol (RSVP) for signaling. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-association-bidir/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-pce-association-bidir-06 https://datatracker.ietf.org/doc/html/draft-ietf-pce-association-bidir-06 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-association-bidir-06 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Fri Mar 13 14:58:16 2020 Return-Path: X-Original-To: pce@ietf.org Delivered-To: pce@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id A60E33A0036; Fri, 13 Mar 2020 14:58:12 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: pce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.121.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: pce@ietf.org Message-ID: <158413669246.3153.1160911680057400699@ietfa.amsl.com> Date: Fri, 13 Mar 2020 14:58:12 -0700 Archived-At: Subject: [Pce] I-D Action: draft-ietf-pce-sr-bidir-path-02.txt X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Mar 2020 21:58:14 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Path Computation Element WG of the IETF. Title : PCEP Extensions for Associated Bidirectional Segment Routing (SR) Paths Authors : Cheng Li Mach(Guoyi) Chen Weiqiang Cheng Rakesh Gandhi Quan Xiong Filename : draft-ietf-pce-sr-bidir-path-02.txt Pages : 17 Date : 2020-03-13 Abstract: The Path Computation Element Communication Protocol (PCEP) provides mechanisms for Path Computation Elements (PCEs) to perform path computations in response to Path Computation Clients (PCCs) requests. Segment routing (SR) leverages the source routing and tunneling paradigms. The Stateful PCEP extensions allow stateful control of Segment Routing Traffic Engineering (TE) Paths. Furthermore, PCEP can be used for computing SR TE paths in the network. This document defines PCEP extensions for grouping two unidirectional SR Paths (one in each direction in the network) into a single Associated Bidirectional SR Path. The mechanisms defined in this document can also be applied using a Stateful PCE for both PCE- Initiated and PCC-Initiated LSPs, as well as when using a Stateless PCE. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-sr-bidir-path/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-pce-sr-bidir-path-02 https://datatracker.ietf.org/doc/html/draft-ietf-pce-sr-bidir-path-02 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-sr-bidir-path-02 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Fri Mar 20 03:51:01 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8AAC03A07FD for ; Fri, 20 Mar 2020 03:50:58 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.211 X-Spam-Level: X-Spam-Status: No, score=0.211 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FORGED_MUA_MOZILLA=2.309, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=orange.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MbvqyPq71xmB for ; Fri, 20 Mar 2020 03:50:53 -0700 (PDT) Received: from relais-inet.orange.com (relais-inet.orange.com [80.12.66.39]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 866F43A07F6 for ; Fri, 20 Mar 2020 03:50:53 -0700 (PDT) Received: from opfedar04.francetelecom.fr (unknown [xx.xx.xx.6]) by opfedar26.francetelecom.fr (ESMTP service) with ESMTP id 48kLCw0HPBzFq7G for ; Fri, 20 Mar 2020 11:50:52 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=orange.com; s=ORANGE001; t=1584701452; bh=UdxMY0OO7lB2RJr9X7TIgsgghCWDYh1PBYOieWyb55A=; h=Subject:To:From:Message-ID:Date:MIME-Version:Content-Type: Content-Transfer-Encoding; b=L1iW6jEYouRs0PNhlJmkUDCz8Ht4CbiC1WUeDWqyLFKt7gPhU21kJPMx8uZnXlGuL d3la1JxMgtf1vazySPqhTeENKIC1KdRu+t+i3w/p4zWuL1Mel+RpIsvN+Hq+zl3Szk 50EHC816Bdhd9qm+C8edfaT0jbFGsZ/e7Ic/LSh/SIz7vRia/F0bQQmCHCneQAiLhg YQC/+5DLpO+4MR/kNgCRXLRUhpzZWSEoOQk5inRFr5epU3aB19uH3FS/e3Dev3kEZm o/hXoQ/EUNQtxWbpww2V0EmPmezztJw3/KZzaMnIf3hN9wJ1iCPeeRlowNh9rd+wHN gxv01L7VsryzQ== Received: from Exchangemail-eme6.itn.ftgroup (unknown [xx.xx.13.45]) by opfedar04.francetelecom.fr (ESMTP service) with ESMTP id 48kLCt6F3Lz1xpc for ; Fri, 20 Mar 2020 11:50:50 +0100 (CET) Received: from [10.192.150.124] (10.114.13.245) by exchange-eme6.itn.ftgroup (10.114.13.45) with Microsoft SMTP Server (TLS) id 14.3.487.0; Fri, 20 Mar 2020 11:50:50 +0100 To: References: From: Organization: Orange Message-ID: <32323_1584701451_5E74A00B_32323_81_1_2a5ef5c2-51a7-08ec-6ea8-ef65dbed1759@orange.com> Date: Fri, 20 Mar 2020 11:50:49 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Language: en-US X-Originating-IP: [10.114.13.245] Archived-At: Subject: Re: [Pce] Agenda building for IETF 107 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Mar 2020 10:50:59 -0000 Hi PCE'rs, The slot requests we've received so far don't look in a rush. We believe it'll be more convenient to skip the proposed April 7 and set up a virtual meeting later, e.g. in May and June, hopefully when the global situation resolves. We'll poll the list on time to identify a date and a time slot that will fit the majority. Take care, Dhruv & Julien On 11/03/2020 11:20, Dhruv Dhody wrote: > Hi WG, > > By now you would have seen the note from the IESG regarding the > in-person IETF 107 meeting [1]. We are still waiting for further > instructions on further planning of the virtual WG session. Please > bear with us. > > We are still accepting slot request on the WG agenda, please make the > request SOON, this would also help us in planning the virtual WG > meeting. > > In the meantime, the mailing list is always open for business, please > use it to describe the motivation for your new drafts, list updates to > your existing I-Ds, discuss open issues etc. > > Take care! > Dhruv & Julien > > [1] https://mailarchive.ietf.org/arch/msg/ietf/wxgxvqtHNdtuHqoXAjSqJulrrCA/ > > On Wed, Mar 4, 2020 at 11:12 AM Dhruv Dhody wrote: >> Hi WG, >> >> The PCE WG session in Vancouver is scheduled for Tuesday Afternoon >> session I [1]. If you need some face-to-face time to progress some >> work, please send a slot request to the chairs/secretary directly by >> Friday March 13th including: >> - the draft(s) you want to discuss, >> - the expected presenter name, (mention clearly if the presenter would >> be remote) >> - the requested duration, including question time as part of the slot, >> - the reason why you want to be on the agenda; What do you want to >> achieve? Why is a presentation necessary to achieve it? >> >> Please note - Asking for a slot does not mean you will get one. We >> will be prioritizing moving WG work first as well as drafts that were >> discussed on the mailing list. Please make sure to introduce your new >> draft or summarize an update in the mailing list. The last date to >> submit drafts is Monday March 9th [2]. >> >> Thanks! >> PCE Chairs & Secretary >> >> [1] https://datatracker.ietf.org/meeting/107/agenda.html >> [2] https://datatracker.ietf.org/meeting/important-dates/ _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. 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From nobody Sun Mar 22 20:18:49 2020 Return-Path: X-Original-To: pce@ietf.org Delivered-To: pce@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 196E93A00E2; Sun, 22 Mar 2020 20:18:47 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Carlos Pignataro via Datatracker To: Cc: pce@ietf.org, draft-ietf-pce-stateful-pce-lsp-scheduling.all@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.122.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <158493352697.31725.4511309706970342279@ietfa.amsl.com> Reply-To: Carlos Pignataro Date: Sun, 22 Mar 2020 20:18:47 -0700 Archived-At: Subject: [Pce] Rtgdir early review of draft-ietf-pce-stateful-pce-lsp-scheduling-12 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Mar 2020 03:18:47 -0000 Reviewer: Carlos Pignataro Review result: Has Nits Hello, I have been selected as the Routing Directorate reviewer for this draft. The Routing Directorate seeks to review all routing or routing-related drafts as they pass through IETF last call and IESG review, and sometimes on special request. The purpose of the review is to provide assistance to the Routing ADs. For more information about the Routing Directorate, please see ​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Although these comments are primarily for the use of the Routing ADs, it would be helpful if you could consider them along with any other IETF Last Call comments that you receive, and strive to resolve them through discussion or by updating the draft. Document: draft-ietf-pce-stateful-pce-lsp-scheduling Reviewer: Carlos Pignataro Intended Status: Proposed Standard Summary: This is a well written document, which displays iterations that improved its quality. I have no concerns with this document. I would point out a small set of questions and potential issues for the author's consideration: 5.2.1. SCHED-LSP-ATTRIBUTE TLV Can Start-Time and Duration take any value from 0 to 32-bits-of-ones? 9. Manageability Consideration Could these add Default values or ranges (esp. to times, seconds, etc.)? 10. IANA Considerations 10.1. PCEP TLV Type Indicators For the SCHED-LSP-ATTRIBUTE and SCHED-PD-LSP-ATTRIBUTE, I suggest creating Registries for the Flags: | Flags |R|C|A| What is the future's allocation policy for remaining Flags for example? Actually reading later Section 10.3 I realize they are specified there. Why are the Flags in a different section, but Opt in this section? Anyway, a nit. IANA is requested to create and maintain a new registry "Opt" under SCHED-PD-LSP-ATTRIBUTE (TLV Type: TBD2). Initial values for the registry are given below. What is the allocation policy for Unassigned? Value Name Definition ----- ---- ---------- 0 Reserved 1 REPEAT-EVERY-DAY Section 5.2.2 2 REPEAT-EVERY-WEEK Section 5.2.2 3 REPEAT-EVERY-MONTH Section 5.2.2 4 REPEAT-EVERY-YEAR Section 5.2.2 5 REPEAT-EVERY-REPEAT-TIME-LENGTH Section 5.2.2 6-14 Unassigned 15 Reserved What is the reason for "Section 5.2.2"? Since this are instructions for IANA, these references are not significant without the document reference. Appendix A. Contributor Addresses There are more than one Contributors -- why singular? I hope these help, Carlos Pignataro. 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14:19:10 -0700 Archived-At: Subject: [Pce] I-D Action: draft-ietf-pce-stateful-pce-lsp-scheduling-13.txt X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Mar 2020 21:19:11 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Path Computation Element WG of the IETF. Title : PCEP Extensions for LSP scheduling with stateful PCE Authors : Huaimo Chen Yan Zhuang Qin Wu Daniele Ceccarelli Filename : draft-ietf-pce-stateful-pce-lsp-scheduling-13.txt Pages : 25 Date : 2020-03-23 Abstract: This document defines a set of extensions needed to the stateful Path Computation Element (PCE) communication Protocol (PCEP), so as to enable Labeled Switched Path (LSP) scheduling for path computation and LSP setup/deletion based on the actual network resource usage and the duration of a traffic service in a centralized network environment as stated in RFC 8413. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-pce-lsp-scheduling/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-pce-stateful-pce-lsp-scheduling-13 https://datatracker.ietf.org/doc/html/draft-ietf-pce-stateful-pce-lsp-scheduling-13 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-stateful-pce-lsp-scheduling-13 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. 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ANhLgQ2e1+Hksj+dtFV5mPWuHWqmLbPaU+rtM4fnRCxAaVJIpCshSare qocEo+AC3drP+uz+e3aqBSBrNKz8rdUvvsC4Ujg= X-Google-Smtp-Source: ADFU+vuzRpiEGn2yUTVdGWlyytJT6GlsR6LQtICNdJ7P+CqZaZh/ZwFMi0iuB6LP+p8rD8D9/MPHqJ9ctwH51jacW4Q= X-Received: by 2002:a17:906:35d5:: with SMTP id p21mr11524819ejb.281.1585057302789; Tue, 24 Mar 2020 06:41:42 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Mrinmoy Das Date: Tue, 24 Mar 2020 19:11:31 +0530 Message-ID: To: Dhruv Dhody Cc: Mahend Negi , "Siva Sivabalan (msiva)" , "Clarence Filsfils (cfilsfil)" , Jeff Tantsura , Jonathan Hardwick , stefano@previdi.net, "Chengli (Cheng Li)" , pce-chairs , pce@ietf.org Content-Type: multipart/alternative; boundary="0000000000007b437505a199e977" Archived-At: X-Mailman-Approved-At: Tue, 24 Mar 2020 07:09:02 -0700 Subject: Re: [Pce] Query regarding draft-ietf-pce-binding-label-sid-02 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Mar 2020 13:41:56 -0000 --0000000000007b437505a199e977 Content-Type: text/plain; charset="UTF-8" Hi Dhruv, Thanks for your quick reply. I have added PCE WG in this mail. More inline. Thanks & Regards, Mrinmoy On Tue, Mar 24, 2020 at 6:00 PM Dhruv Dhody wrote: > Hi Mrinmoy, > > I was suggest you to also include pce@ietf.org; WG could benefit from > the discussion in future. More inline. > > On Tue, Mar 24, 2020 at 5:08 PM Mrinmoy Das > wrote: > > > > Respected Authors and Contributors, > > > > Hope you all are doing well and safe in this tough times of Corona Virus > Outbreak. > > > > I like to draw your attention regarding some parts of > draft-ietf-pce-binding-label-sid-02 which I didn't able to understand > properly. > > > > 1. BT = 0: The binding value is an MPLS label carried in the format > > > > specified in [RFC5462] where only the label value is valid, and > > other fields (TC, S, and TTL) fields MUST be considered invalid. > > The Length MUST be set to 7. > > > > > > Previous versions of private draft uses 4 byte to store MPLS 20 Bit > label and ignores TC, S & TTL fields. > > The length in the previous version was 6, which was incorrect. The TLV > length is as per https://tools.ietf.org/html/rfc5440#section-7.1 > Which didnt make sense and your calculation below is correct! > > > But in IETF draft after TLV structure redefinition, total length of > the TLV becomes 7, i.e. BT(1 Byte)+Reserved(3 Byte)+MPLS 20bit Label(3 > Byte) = 7 Byte > > Yes > > > So, now MPLS 20 Bit Labelwill be stored in 3 byte. Is it correct? > > You can consider it a case of rounding up 20 bits to 3 bytes. > > If this is correct then I feel the wording of the above paragraph > needs to be more specific, meaning in 3 Byte Label there will be no space > for TTL, so > > my suggestion is to make below correction: > > > > BT = 0: The binding value is an MPLS label carried in the format > > > > specified in [RFC5462] where only the label value is valid, and > > other fields (TC, S, and TTL) fields MUST be considered invalid. > > The Length MUST be set to 7. > > > > My suggestion would be not mention any of the other fields and talk > only of 20 bits of Label. I see other SR RFCs take similar approach. > Sounds Good. I'm agree with you. > > > > 2. In some cases, a stateful PCE can request the PCC to allocate a > > > > binding value. It may do so by sending a PCUpd message containing an > > empty TE-PATH-BINDING TLV, i.e., no binding value is specified > > (making the length field of the TLV as 2). A PCE can also make the > > request PCC to allocate a binding at the time of initiation by > > sending a PCInitiate message with an empty TE-PATH-BINDING TLV. > > > > > > As per new Binding TLV Structure below, BT is of 1 Byte and there will > be 3 Byte Reserved. > > > > 0 1 2 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 > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > | Type | Length | > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > | BT | Reserved | > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > ~ Binding Value (variable length) ~ > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > > > > > Now, an empty Binding TLV should have length of BT(1 Byte) + Reserved > (3 Byte) = 4 Byte instead of 2 Byte. > > > > So, I do not understand how in the draft it is calculated as 2 Byte. > Could you please give me some clue? > > > This seems to be an error IMHO. 4 seems to be correct. > Okay. So what would be your suggestion to developer who is implementing this draft? Should it be taken as 4? If draft needs correction when will that be published? > > Thanks! > Dhruv > > > > > Thanks & Regards, > > Mrinmoy > --0000000000007b437505a199e977 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Dhruv,

Thanks for your qu= ick reply.

I have added PCE WG in this mail. More = inline.

Thanks & Regards,
Mrinmoy
On = Tue, Mar 24, 2020 at 6:00 PM Dhruv Dhody <dhruv.ietf@gmail.com> wrote:
Hi Mrinmoy,

I was suggest you to also include pce@ietf.org; WG could benefit from
the discussion in future. More inline.

On Tue, Mar 24, 2020 at 5:08 PM Mrinmoy Das <mrinmoy.ietf@gmail.com> wrote:
>
> Respected Authors and Contributors,
>
> Hope you all are doing well and safe in this tough times of Corona Vir= us Outbreak.
>
> I like to draw your attention regarding some parts of draft-ietf-pce-b= inding-label-sid-02 which I didn't able to understand properly.
>
> 1. BT =3D 0: The binding value is an MPLS label carried in the format<= br> >
>=C2=A0 =C2=A0specified in [RFC5462] where only the label value is valid= , and
>=C2=A0 =C2=A0other fields (TC, S, and TTL) fields MUST be considered in= valid.
>=C2=A0 =C2=A0The Length MUST be set to 7.
>
>
>=C2=A0 =C2=A0 =C2=A0Previous versions of private draft uses 4 byte to s= tore MPLS 20 Bit label and ignores TC, S & TTL fields.

The length in the previous version was 6, which was incorrect. The TLV
length is as per https://tools.ietf.org/html/rfc5440#= section-7.1
Which didnt make sense and your calculation below is correct!

>=C2=A0 =C2=A0 =C2=A0But in IETF draft after TLV structure redefinition,= total length of the TLV becomes 7, i.e. BT(1 Byte)+Reserved(3 Byte)+MPLS 2= 0bit Label(3 Byte) =3D 7 Byte

Yes

>=C2=A0 =C2=A0 =C2=A0So, now MPLS 20 Bit Labelwill be stored in 3 byte. = Is it correct?

You can consider it a case of rounding up 20 bits to 3 bytes.=C2=A0

>=C2=A0 =C2=A0 =C2=A0If this is correct then I feel the wording of the a= bove paragraph needs to be more specific, meaning in 3 Byte Label there wil= l be no space for TTL, so
>=C2=A0 =C2=A0 =C2=A0my suggestion is to make below correction:
>
>=C2=A0 =C2=A0 =C2=A0BT =3D 0: The binding value is an MPLS label carrie= d in the format
>
>=C2=A0 =C2=A0specified in [RFC5462] where only the label value is valid= , and
>=C2=A0 =C2=A0other fields (TC, S, and TTL) fields MUST be considered in= valid.
>=C2=A0 =C2=A0The Length MUST be set to 7.
>

My suggestion would be not mention any of the other fields and talk
only of 20 bits of Label. I see other SR RFCs take similar approach.
=C2=A0
Sounds Good. I'm agree with you.
<= div>

>
> 2. In some cases, a stateful PCE can request the PCC to allocate a
>
>=C2=A0 =C2=A0binding value.=C2=A0 It may do so by sending a PCUpd messa= ge containing an
>=C2=A0 =C2=A0empty TE-PATH-BINDING TLV, i.e., no binding value is speci= fied
>=C2=A0 =C2=A0(making the length field of the TLV as 2).=C2=A0 A PCE can= also make the
>=C2=A0 =C2=A0request PCC to allocate a binding at the time of initiatio= n by
>=C2=A0 =C2=A0sending a PCInitiate message with an empty TE-PATH-BINDING= TLV.
>
>
>=C2=A0 =C2=A0As per new Binding TLV Structure below, BT is of 1 Byte an= d there will be 3 Byte Reserved.
>
>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 0=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A02=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A03
>
>=C2=A0 =C2=A0 =C2=A0 =C2=A0 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
>=C2=A0 =C2=A0 =C2=A0 =C2=A0+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-= +-+-+-+-+-+-+-+-+-+-+
>=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0Type=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Length=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 |
>=C2=A0 =C2=A0 =C2=A0 =C2=A0+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-= +-+-+-+-+-+-+-+-+-+-+
>=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 BT=C2=A0 =C2=A0 =C2=A0= =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Reser= ved=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 |
>=C2=A0 =C2=A0 =C2=A0 =C2=A0+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-= +-+-+-+-+-+-+-+-+-+-+
>=C2=A0 =C2=A0 =C2=A0 =C2=A0~=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 B= inding Value (variable length)=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 ~
>=C2=A0 =C2=A0 =C2=A0 =C2=A0+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-= +-+-+-+-+-+-+-+-+-+-+
>
>
>=C2=A0 =C2=A0 Now, an empty Binding TLV should have length of BT(1 Byte= ) + Reserved (3 Byte) =3D 4 Byte instead of 2 Byte.
>
>=C2=A0 =C2=A0 So, I do not understand how in the draft it is calculated= as 2 Byte. Could you please give me some clue?


This seems to be an error IMHO. 4 seems to be correct.

Okay. So what would=C2=A0 be your suggestion to developer w= ho is implementing this draft? Should it be taken as 4? If draft needs corr= ection
when will that be published?

Thanks!
Dhruv

>
> Thanks & Regards,
> Mrinmoy
--0000000000007b437505a199e977-- From nobody Tue Mar 24 07:16:09 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E96083A07D5; Tue, 24 Mar 2020 07:15:16 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.098 X-Spam-Level: X-Spam-Status: No, score=-2.098 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 70Q8iCoLtsnr; Tue, 24 Mar 2020 07:15:12 -0700 (PDT) Received: from mail-il1-x12e.google.com (mail-il1-x12e.google.com [IPv6:2607:f8b0:4864:20::12e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C7CDE3A077D; Tue, 24 Mar 2020 07:15:01 -0700 (PDT) Received: by mail-il1-x12e.google.com with SMTP id 7so3456246ill.2; Tue, 24 Mar 2020 07:15:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=M6g7Cd+rhN+y9PpCikrFMFX9sqPrtF/dggPKryJVSkI=; b=rCfzFyp+xKFXo6J8+aOkFE9DWhnW3ZMfvW+22597t/K/jR0Xlk7SJh0R71Gw6QWwES EjhEqLmmhk8UwEOIXl8KEs8chB/iuqmQeiW/InTgP6ZWiw23dCneH9AwG/UmFGgUtkgS SIrrqiodh9EhX/oM57O3daJDRLfLlko0EHnc1XPlGUi+FpSwPZMRXfBiWTo21061FcdO NGZg/eXtuXpTNA58NNjo38nRXxZCtT00wg4jtCOdNJE4TFVpLIdmJOaHSzC2Hbx/GSCr +ru/WsyaGMKvmf3N//DP3sui+pi8KyfNRTRWUPfk4Alx/IEDNRlyF/8qedbFbA1fPOHY UtdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=M6g7Cd+rhN+y9PpCikrFMFX9sqPrtF/dggPKryJVSkI=; b=VQM34zQAlHf8kvAcK5ZEUif1TESdYuADdrHAIct3mBVciZKY/Go0YwkxXcgFmcJ9sI 3V36YX6Rq+ZvTZpGImpLMdAJbD5mcyAkbooSHIucXQcaL4eAWAlLgMdmpwGNBir62c6R 4M9eGvglQiiw8vBUuo8kbJrTH2ny78xWXi5JbkKbKRUEUbA6jCU88R2M+orjeg/gx6dZ qNPQ3pjAZVC1Ag8fI2Mrq+Yx4cTjL1UPqsSqTlTSwOHHsVOvp6E9HX91evPN8z/x8hj8 TrG2gRUP7mQekOGqUvpnUovJULCHfYl9RV4wxNngXfTjF0BP2XsML5lHvFBGSjBXBAP7 QPBA== X-Gm-Message-State: ANhLgQ18fyfj5Lk9mWLX459JQ5nUvdps9Jjw1/h3XptbIkRDZOwZ+YlF ClLrtvop4DtOT2Xg9OF+z52fw0DCd+cu1m1MYU0= X-Google-Smtp-Source: ADFU+vu14/hIdPe6AxQ8uEO/nofi9UObcEK3eL+FqGWkf4yRR1H3RM59a0sHmHzNdvEL2kxy31p+vAM3y+mGOvJkfko= X-Received: by 2002:a92:5859:: with SMTP id m86mr25755677ilb.279.1585059300409; Tue, 24 Mar 2020 07:15:00 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Dhruv Dhody Date: Tue, 24 Mar 2020 19:44:24 +0530 Message-ID: To: Mrinmoy Das Cc: Mahend Negi , "Siva Sivabalan (msiva)" , "Clarence Filsfils (cfilsfil)" , Jeff Tantsura , Jonathan Hardwick , stefano@previdi.net, "Chengli (Cheng Li)" , pce-chairs , pce@ietf.org Content-Type: text/plain; charset="UTF-8" Archived-At: X-Mailman-Approved-At: Tue, 24 Mar 2020 07:16:08 -0700 Subject: Re: [Pce] Query regarding draft-ietf-pce-binding-label-sid-02 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Mar 2020 14:15:17 -0000 Hi Mrinmoy, I will give authors some time to respond and confirm (and spin a new update). I have noted this in the PCE WG wiki [ https://trac.ietf.org/trac/pce/wiki/WikiStart ] to make sure we could track this to closure. Thanks! Dhruv On Tue, Mar 24, 2020 at 7:11 PM Mrinmoy Das wrote: > > Hi Dhruv, > > Thanks for your quick reply. > > I have added PCE WG in this mail. More inline. > > Thanks & Regards, > Mrinmoy > > On Tue, Mar 24, 2020 at 6:00 PM Dhruv Dhody wrote: >> >> Hi Mrinmoy, >> >> I was suggest you to also include pce@ietf.org; WG could benefit from >> the discussion in future. More inline. >> >> On Tue, Mar 24, 2020 at 5:08 PM Mrinmoy Das wrote: >> > >> > Respected Authors and Contributors, >> > >> > Hope you all are doing well and safe in this tough times of Corona Virus Outbreak. >> > >> > I like to draw your attention regarding some parts of draft-ietf-pce-binding-label-sid-02 which I didn't able to understand properly. >> > >> > 1. BT = 0: The binding value is an MPLS label carried in the format >> > >> > specified in [RFC5462] where only the label value is valid, and >> > other fields (TC, S, and TTL) fields MUST be considered invalid. >> > The Length MUST be set to 7. >> > >> > >> > Previous versions of private draft uses 4 byte to store MPLS 20 Bit label and ignores TC, S & TTL fields. >> >> The length in the previous version was 6, which was incorrect. The TLV >> length is as per https://tools.ietf.org/html/rfc5440#section-7.1 >> Which didnt make sense and your calculation below is correct! >> >> > But in IETF draft after TLV structure redefinition, total length of the TLV becomes 7, i.e. BT(1 Byte)+Reserved(3 Byte)+MPLS 20bit Label(3 Byte) = 7 Byte >> >> Yes >> >> > So, now MPLS 20 Bit Labelwill be stored in 3 byte. Is it correct? >> >> You can consider it a case of rounding up 20 bits to 3 bytes. >> >> >> > If this is correct then I feel the wording of the above paragraph needs to be more specific, meaning in 3 Byte Label there will be no space for TTL, so >> > my suggestion is to make below correction: >> > >> > BT = 0: The binding value is an MPLS label carried in the format >> > >> > specified in [RFC5462] where only the label value is valid, and >> > other fields (TC, S, and TTL) fields MUST be considered invalid. >> > The Length MUST be set to 7. >> > >> >> My suggestion would be not mention any of the other fields and talk >> only of 20 bits of Label. I see other SR RFCs take similar approach. > > > Sounds Good. I'm agree with you. > >> >> > >> > 2. In some cases, a stateful PCE can request the PCC to allocate a >> > >> > binding value. It may do so by sending a PCUpd message containing an >> > empty TE-PATH-BINDING TLV, i.e., no binding value is specified >> > (making the length field of the TLV as 2). A PCE can also make the >> > request PCC to allocate a binding at the time of initiation by >> > sending a PCInitiate message with an empty TE-PATH-BINDING TLV. >> > >> > >> > As per new Binding TLV Structure below, BT is of 1 Byte and there will be 3 Byte Reserved. >> > >> > 0 1 2 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 >> > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >> > | Type | Length | >> > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >> > | BT | Reserved | >> > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >> > ~ Binding Value (variable length) ~ >> > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >> > >> > >> > Now, an empty Binding TLV should have length of BT(1 Byte) + Reserved (3 Byte) = 4 Byte instead of 2 Byte. >> > >> > So, I do not understand how in the draft it is calculated as 2 Byte. Could you please give me some clue? >> >> >> This seems to be an error IMHO. 4 seems to be correct. > > > Okay. So what would be your suggestion to developer who is implementing this draft? Should it be taken as 4? If draft needs correction > when will that be published? >> >> >> Thanks! >> Dhruv >> >> > >> > Thanks & Regards, >> > Mrinmoy From nobody Tue Mar 24 10:38:09 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7BD033A0C9F; Tue, 24 Mar 2020 10:37:14 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.097 X-Spam-Level: X-Spam-Status: No, score=-2.097 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PdE_YJhra1d6; Tue, 24 Mar 2020 10:37:07 -0700 (PDT) Received: from mail-ed1-x531.google.com (mail-ed1-x531.google.com [IPv6:2a00:1450:4864:20::531]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4C0023A0CDD; Tue, 24 Mar 2020 10:37:07 -0700 (PDT) Received: by mail-ed1-x531.google.com with SMTP id u59so21635215edc.12; Tue, 24 Mar 2020 10:37:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=diUchhpbGJgjmkG2c2As8Pz7hIiZY1LRCMcpLei59pU=; b=ZjFpRS9bQMm0MUF8fVgeZhd1okHW3Ws6oj1IaU+Td2S4ttxhgogGmNTOxctHJl9YQ6 gVn8YhsDhtsGRhk8ab4DfnQTiKwsWIqh+noId9KlM0uJBtuc4ksHvllnCqXU6o7/On2F v19gpbRCiAYFTl929roYuJp5JWbCXBxN+EyoOw7TbaneAuYs7dudmlKkLHPEGuONd5X6 1iz2RmizPuHrpghdYPqBnF2hu6Wb74c0/LYZh/gCkYeCAnRKrt8urzOAGVq8Z3pOZU/d LZN4rlObDi0UK0zQNT1GpIB382NuLsPgJysEPUlUZzS9YfscNLJ5KGoHHJB6q5SZMXQB u22Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=diUchhpbGJgjmkG2c2As8Pz7hIiZY1LRCMcpLei59pU=; b=Z+lp8bSE4Q3/9SFmXtth/r0Na/fgZJ08xU3d80LNNrNn00AZTk2yZod0QNrIhEXFPz aDfDhOYKpzD1nLW7qjxjBNZvbQBwHdrzG2iRVDWZ0PZEFc4i2M32x8fNigqK/jGNLlmu 7YoWuUUIMpW/iBU0uOdrGYlEm2aFD4LgMupuvpWY7aCBCc9UZMNYbpIcRdyse+4hcZE5 Ha1sW9Q/g6wE9sUdRnBv7upU/6c2NcMGrqySuX4kkWV0lM8IySXQGksNI4lA9lgDRqIl pYm9uVhakrv6mo+lImuwq7twHTibq+mbHrx8RHUEZtoK4eG5zr1cDUElTohdfmWk1Dff 3rbQ== X-Gm-Message-State: ANhLgQ3fonL0PU/x53tnzQ2971ndJwDCu9/X23u5HUd5dvVM9s8Tk+Nb VvTXIExVTPs7cweuDTDjtkZT6codNgNKUdHT9DM= X-Google-Smtp-Source: ADFU+vvFJEGfrjyMij+bb+3eVaBuf94r05qVApeW8rQvaiz4XLJxGENtaWCCcyywEt8NPMnUfMkN1NAyvrtis2KOtxs= X-Received: by 2002:a50:aad3:: with SMTP id r19mr27401952edc.237.1585071425709; Tue, 24 Mar 2020 10:37:05 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Mrinmoy Das Date: Tue, 24 Mar 2020 23:06:53 +0530 Message-ID: To: Dhruv Dhody Cc: Mahend Negi , "Siva Sivabalan (msiva)" , "Clarence Filsfils (cfilsfil)" , Jeff Tantsura , Jonathan Hardwick , stefano@previdi.net, "Chengli (Cheng Li)" , pce-chairs , pce@ietf.org Content-Type: multipart/alternative; boundary="00000000000045ea6205a19d3350" Archived-At: X-Mailman-Approved-At: Tue, 24 Mar 2020 10:38:08 -0700 Subject: Re: [Pce] Query regarding draft-ietf-pce-binding-label-sid-02 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Mar 2020 17:37:15 -0000 --00000000000045ea6205a19d3350 Content-Type: text/plain; charset="UTF-8" Hello Dhruv, I appreciate your help. :) Thanks & Regards, Mrinmoy On Tue, Mar 24, 2020, 7:45 PM Dhruv Dhody wrote: > Hi Mrinmoy, > > I will give authors some time to respond and confirm (and spin a new > update). I have noted this in the PCE WG wiki [ > https://trac.ietf.org/trac/pce/wiki/WikiStart ] to make sure we could > track this to closure. > > Thanks! > Dhruv > > On Tue, Mar 24, 2020 at 7:11 PM Mrinmoy Das > wrote: > > > > Hi Dhruv, > > > > Thanks for your quick reply. > > > > I have added PCE WG in this mail. More inline. > > > > Thanks & Regards, > > Mrinmoy > > > > On Tue, Mar 24, 2020 at 6:00 PM Dhruv Dhody > wrote: > >> > >> Hi Mrinmoy, > >> > >> I was suggest you to also include pce@ietf.org; WG could benefit from > >> the discussion in future. More inline. > >> > >> On Tue, Mar 24, 2020 at 5:08 PM Mrinmoy Das > wrote: > >> > > >> > Respected Authors and Contributors, > >> > > >> > Hope you all are doing well and safe in this tough times of Corona > Virus Outbreak. > >> > > >> > I like to draw your attention regarding some parts of > draft-ietf-pce-binding-label-sid-02 which I didn't able to understand > properly. > >> > > >> > 1. BT = 0: The binding value is an MPLS label carried in the format > >> > > >> > specified in [RFC5462] where only the label value is valid, and > >> > other fields (TC, S, and TTL) fields MUST be considered invalid. > >> > The Length MUST be set to 7. > >> > > >> > > >> > Previous versions of private draft uses 4 byte to store MPLS 20 > Bit label and ignores TC, S & TTL fields. > >> > >> The length in the previous version was 6, which was incorrect. The TLV > >> length is as per https://tools.ietf.org/html/rfc5440#section-7.1 > >> Which didnt make sense and your calculation below is correct! > >> > >> > But in IETF draft after TLV structure redefinition, total length > of the TLV becomes 7, i.e. BT(1 Byte)+Reserved(3 Byte)+MPLS 20bit Label(3 > Byte) = 7 Byte > >> > >> Yes > >> > >> > So, now MPLS 20 Bit Labelwill be stored in 3 byte. Is it correct? > >> > >> You can consider it a case of rounding up 20 bits to 3 bytes. > >> > >> > >> > If this is correct then I feel the wording of the above paragraph > needs to be more specific, meaning in 3 Byte Label there will be no space > for TTL, so > >> > my suggestion is to make below correction: > >> > > >> > BT = 0: The binding value is an MPLS label carried in the format > >> > > >> > specified in [RFC5462] where only the label value is valid, and > >> > other fields (TC, S, and TTL) fields MUST be considered invalid. > >> > The Length MUST be set to 7. > >> > > >> > >> My suggestion would be not mention any of the other fields and talk > >> only of 20 bits of Label. I see other SR RFCs take similar approach. > > > > > > Sounds Good. I'm agree with you. > > > >> > >> > > >> > 2. In some cases, a stateful PCE can request the PCC to allocate a > >> > > >> > binding value. It may do so by sending a PCUpd message containing > an > >> > empty TE-PATH-BINDING TLV, i.e., no binding value is specified > >> > (making the length field of the TLV as 2). A PCE can also make the > >> > request PCC to allocate a binding at the time of initiation by > >> > sending a PCInitiate message with an empty TE-PATH-BINDING TLV. > >> > > >> > > >> > As per new Binding TLV Structure below, BT is of 1 Byte and there > will be 3 Byte Reserved. > >> > > >> > 0 1 2 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 > >> > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > >> > | Type | Length > | > >> > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > >> > | BT | Reserved > | > >> > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > >> > ~ Binding Value (variable length) > ~ > >> > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > >> > > >> > > >> > Now, an empty Binding TLV should have length of BT(1 Byte) + > Reserved (3 Byte) = 4 Byte instead of 2 Byte. > >> > > >> > So, I do not understand how in the draft it is calculated as 2 > Byte. Could you please give me some clue? > >> > >> > >> This seems to be an error IMHO. 4 seems to be correct. > > > > > > Okay. So what would be your suggestion to developer who is implementing > this draft? Should it be taken as 4? If draft needs correction > > when will that be published? > >> > >> > >> Thanks! > >> Dhruv > >> > >> > > >> > Thanks & Regards, > >> > Mrinmoy > --00000000000045ea6205a19d3350 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello Dhruv,

I appreciate your help. :)=C2=A0

Thanks & Regards,
Mrinmoy
<= /div>
O= n Tue, Mar 24, 2020, 7:45 PM Dhruv Dhody <dhruv.ietf@gmail.com> wrote:
Hi Mrinmoy,

I will give authors some time to respond and confirm (and spin a new
update). I have noted this in the PCE WG wiki [
https://trac.ietf.org/trac/pce/wiki/WikiStar= t ] to make sure we could
track this to closure.

Thanks!
Dhruv

On Tue, Mar 24, 2020 at 7:11 PM Mrinmoy Das <mrinmoy.ietf@gmail.com<= /a>> wrote:
>
> Hi Dhruv,
>
> Thanks for your quick reply.
>
> I have added PCE WG in this mail. More inline.
>
> Thanks & Regards,
> Mrinmoy
>
> On Tue, Mar 24, 2020 at 6:00 PM Dhruv Dhody <dhruv.ietf@gmail.com= > wrote:
>>
>> Hi Mrinmoy,
>>
>> I was suggest you to also include pce@ietf.org; WG could benefit fro= m
>> the discussion in future. More inline.
>>
>> On Tue, Mar 24, 2020 at 5:08 PM Mrinmoy Das <mrinmoy.ietf@g= mail.com> wrote:
>> >
>> > Respected Authors and Contributors,
>> >
>> > Hope you all are doing well and safe in this tough times of C= orona Virus Outbreak.
>> >
>> > I like to draw your attention regarding some parts of draft-i= etf-pce-binding-label-sid-02 which I didn't able to understand properly= .
>> >
>> > 1. BT =3D 0: The binding value is an MPLS label carried in th= e format
>> >
>> >=C2=A0 =C2=A0specified in [RFC5462] where only the label value= is valid, and
>> >=C2=A0 =C2=A0other fields (TC, S, and TTL) fields MUST be cons= idered invalid.
>> >=C2=A0 =C2=A0The Length MUST be set to 7.
>> >
>> >
>> >=C2=A0 =C2=A0 =C2=A0Previous versions of private draft uses 4 = byte to store MPLS 20 Bit label and ignores TC, S & TTL fields.
>>
>> The length in the previous version was 6, which was incorrect. The= TLV
>> length is as per https://tools.ie= tf.org/html/rfc5440#section-7.1
>> Which didnt make sense and your calculation below is correct!
>>
>> >=C2=A0 =C2=A0 =C2=A0But in IETF draft after TLV structure rede= finition, total length of the TLV becomes 7, i.e. BT(1 Byte)+Reserved(3 Byt= e)+MPLS 20bit Label(3 Byte) =3D 7 Byte
>>
>> Yes
>>
>> >=C2=A0 =C2=A0 =C2=A0So, now MPLS 20 Bit Labelwill be stored in= 3 byte. Is it correct?
>>
>> You can consider it a case of rounding up 20 bits to 3 bytes.
>>
>>
>> >=C2=A0 =C2=A0 =C2=A0If this is correct then I feel the wording= of the above paragraph needs to be more specific, meaning in 3 Byte Label = there will be no space for TTL, so
>> >=C2=A0 =C2=A0 =C2=A0my suggestion is to make below correction:=
>> >
>> >=C2=A0 =C2=A0 =C2=A0BT =3D 0: The binding value is an MPLS lab= el carried in the format
>> >
>> >=C2=A0 =C2=A0specified in [RFC5462] where only the label value= is valid, and
>> >=C2=A0 =C2=A0other fields (TC, S, and TTL) fields MUST be cons= idered invalid.
>> >=C2=A0 =C2=A0The Length MUST be set to 7.
>> >
>>
>> My suggestion would be not mention any of the other fields and tal= k
>> only of 20 bits of Label. I see other SR RFCs take similar approac= h.
>
>
> Sounds Good. I'm agree with you.
>
>>
>> >
>> > 2. In some cases, a stateful PCE can request the PCC to alloc= ate a
>> >
>> >=C2=A0 =C2=A0binding value.=C2=A0 It may do so by sending a PC= Upd message containing an
>> >=C2=A0 =C2=A0empty TE-PATH-BINDING TLV, i.e., no binding value= is specified
>> >=C2=A0 =C2=A0(making the length field of the TLV as 2).=C2=A0 = A PCE can also make the
>> >=C2=A0 =C2=A0request PCC to allocate a binding at the time of = initiation by
>> >=C2=A0 =C2=A0sending a PCInitiate message with an empty TE-PAT= H-BINDING TLV.
>> >
>> >
>> >=C2=A0 =C2=A0As per new Binding TLV Structure below, BT is of = 1 Byte and there will be 3 Byte Reserved.
>> >
>> >=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 0=C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01=C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A02=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A03
>> >
>> >=C2=A0 =C2=A0 =C2=A0 =C2=A0 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
>> >=C2=A0 =C2=A0 =C2=A0 =C2=A0+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+= -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>> >=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0Type=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Length=C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 |
>> >=C2=A0 =C2=A0 =C2=A0 =C2=A0+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+= -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>> >=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 BT=C2=A0 =C2= =A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0Reserved=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 |
>> >=C2=A0 =C2=A0 =C2=A0 =C2=A0+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+= -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>> >=C2=A0 =C2=A0 =C2=A0 =C2=A0~=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 Binding Value (variable length)=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ~
>> >=C2=A0 =C2=A0 =C2=A0 =C2=A0+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+= -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>> >
>> >
>> >=C2=A0 =C2=A0 Now, an empty Binding TLV should have length of = BT(1 Byte) + Reserved (3 Byte) =3D 4 Byte instead of 2 Byte.
>> >
>> >=C2=A0 =C2=A0 So, I do not understand how in the draft it is c= alculated as 2 Byte. Could you please give me some clue?
>>
>>
>> This seems to be an error IMHO. 4 seems to be correct.
>
>
> Okay. So what would=C2=A0 be your suggestion to developer who is imple= menting this draft? Should it be taken as 4? If draft needs correction
> when will that be published?
>>
>>
>> Thanks!
>> Dhruv
>>
>> >
>> > Thanks & Regards,
>> > Mrinmoy
--00000000000045ea6205a19d3350-- From nobody Wed Mar 25 03:26:47 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id F2A0A3A0CCC for ; Wed, 25 Mar 2020 03:26:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.897 X-Spam-Level: X-Spam-Status: No, score=-1.897 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=previdi-net.20150623.gappssmtp.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ElBJ45DPSCtS for ; Wed, 25 Mar 2020 03:26:10 -0700 (PDT) Received: from mail-wr1-x42c.google.com (mail-wr1-x42c.google.com [IPv6:2a00:1450:4864:20::42c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DCCE03A0CC8 for ; Wed, 25 Mar 2020 03:26:09 -0700 (PDT) Received: by mail-wr1-x42c.google.com with SMTP id 65so2297387wrl.1 for ; Wed, 25 Mar 2020 03:26:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=previdi-net.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=tbD7BXJ0lhhpk3KnNiLCOWA3+qjZbrUgqp7BElwxvIc=; b=OwI58UIImvTWrnEMqMESS2TN+ZyKMcKBzNniyqxKGUEJtRPBV9wZzl+W0gCzfqhuRr xYK+gzmxYZsfopPGRBhRS3KbYQcE+rPX9gcimjXrHjivaZ7/nWvf7gTecSgi62GvqfRm g11UCeWH04rVgPihTwp4usnZfvG0RPD9MCuGzR4YZQC0n2rmE3DBG6qBkPXD3bf46L2m SJRc2nVfZqez7K+hRQaPJOe0GnOmRfrxTGmWf/hJX/jc/a97/XzBDkpT8qBWiwwsY9Bm 4qrgB/ilNVfuqtpNeMErdNRaPIMxfoI9JcI1aHjJ+g8gqzhA6Ma5sSwib3mG8epvMcPL pUXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:mime-version:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=tbD7BXJ0lhhpk3KnNiLCOWA3+qjZbrUgqp7BElwxvIc=; b=B0Y1+Wz8BXzDtroDuLz6LjXHIKBp+bQ3ggs28EIeiLoWgX/CHDe7FYRpXrfan5c82u ZsBEJWKRwVKpUXRPiL0B4W9BDqTLC4gMR3Qzl29vPiIIg05fA8XR5eVZxOzHNeBCpVV7 DTXAdyMD+dNk3pzQLdJlgd2rbh3v3dH6RYZvMybcWnmaAOQv/iX9hfJC8/FqwaoZ/V4M gZcBWlyWO4GgV44BtaLC6xxV/tK2C2bZPodkR1RBzSiSN8TNU8hx6Tt8uShoNL5sGXuj RphxpB8EkVpmcYG6EPGsgUzord8MB97nPMcd30QdOpoH5tlgy2UYM2EeUK/v6YbrhwH+ prMw== X-Gm-Message-State: ANhLgQ11+6lL/+dA4fk8zi+ZDn9El5kl2iY3wynsNV9nXiF1FERD/KhO U8DlF5hZ2u5UgNLspdux8JRrUQ== X-Google-Smtp-Source: ADFU+vvz6009Xlz1CbM3V1UC6CBX2vjf1Fguqkgnh6vOXQHXS6Y3ZVrA2wNWvEawHdsWjNiyfq7/oQ== X-Received: by 2002:a5d:5408:: with SMTP id g8mr2631467wrv.82.1585131967970; Wed, 25 Mar 2020 03:26:07 -0700 (PDT) Received: from [192.168.1.5] (net-5-95-15-24.cust.vodafonedsl.it. [5.95.15.24]) by smtp.gmail.com with ESMTPSA id c85sm8578395wmd.48.2020.03.25.03.26.06 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 25 Mar 2020 03:26:07 -0700 (PDT) Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) Content-Type: text/plain; charset=us-ascii From: stefano previdi In-Reply-To: Date: Wed, 25 Mar 2020 11:26:07 +0100 Cc: Mrinmoy Das , Mahend Negi , "Siva Sivabalan (msiva)" , "Clarence Filsfils (cfilsfil)" , Jeff Tantsura , Jonathan Hardwick , "Chengli (Cheng Li)" , pce-chairs , pce@ietf.org Content-Transfer-Encoding: quoted-printable Message-Id: References: To: Dhruv Dhody X-Mailer: Apple Mail (2.2104) Archived-At: X-Mailman-Approved-At: Wed, 25 Mar 2020 03:26:46 -0700 Subject: Re: [Pce] Query regarding draft-ietf-pce-binding-label-sid-02 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Mar 2020 10:26:12 -0000 Hi Dhruv,=20 I agree with your proposed changes: 1. only mention the 20 bits label value 2. fix the length to 4. Thanks. s. > On Mar 24, 2020, at 3:14 PM, Dhruv Dhody wrote: >=20 > Hi Mrinmoy, >=20 > I will give authors some time to respond and confirm (and spin a new > update). I have noted this in the PCE WG wiki [ > https://trac.ietf.org/trac/pce/wiki/WikiStart ] to make sure we could > track this to closure. >=20 > Thanks! > Dhruv >=20 > On Tue, Mar 24, 2020 at 7:11 PM Mrinmoy Das = wrote: >>=20 >> Hi Dhruv, >>=20 >> Thanks for your quick reply. >>=20 >> I have added PCE WG in this mail. More inline. >>=20 >> Thanks & Regards, >> Mrinmoy >>=20 >> On Tue, Mar 24, 2020 at 6:00 PM Dhruv Dhody = wrote: >>>=20 >>> Hi Mrinmoy, >>>=20 >>> I was suggest you to also include pce@ietf.org; WG could benefit = from >>> the discussion in future. More inline. >>>=20 >>> On Tue, Mar 24, 2020 at 5:08 PM Mrinmoy Das = wrote: >>>>=20 >>>> Respected Authors and Contributors, >>>>=20 >>>> Hope you all are doing well and safe in this tough times of Corona = Virus Outbreak. >>>>=20 >>>> I like to draw your attention regarding some parts of = draft-ietf-pce-binding-label-sid-02 which I didn't able to understand = properly. >>>>=20 >>>> 1. BT =3D 0: The binding value is an MPLS label carried in the = format >>>>=20 >>>> specified in [RFC5462] where only the label value is valid, and >>>> other fields (TC, S, and TTL) fields MUST be considered invalid. >>>> The Length MUST be set to 7. >>>>=20 >>>>=20 >>>> Previous versions of private draft uses 4 byte to store MPLS 20 = Bit label and ignores TC, S & TTL fields. >>>=20 >>> The length in the previous version was 6, which was incorrect. The = TLV >>> length is as per https://tools.ietf.org/html/rfc5440#section-7.1 >>> Which didnt make sense and your calculation below is correct! >>>=20 >>>> But in IETF draft after TLV structure redefinition, total length = of the TLV becomes 7, i.e. BT(1 Byte)+Reserved(3 Byte)+MPLS 20bit = Label(3 Byte) =3D 7 Byte >>>=20 >>> Yes >>>=20 >>>> So, now MPLS 20 Bit Labelwill be stored in 3 byte. Is it = correct? >>>=20 >>> You can consider it a case of rounding up 20 bits to 3 bytes. >>>=20 >>>=20 >>>> If this is correct then I feel the wording of the above = paragraph needs to be more specific, meaning in 3 Byte Label there will = be no space for TTL, so >>>> my suggestion is to make below correction: >>>>=20 >>>> BT =3D 0: The binding value is an MPLS label carried in the = format >>>>=20 >>>> specified in [RFC5462] where only the label value is valid, and >>>> other fields (TC, S, and TTL) fields MUST be considered invalid. >>>> The Length MUST be set to 7. >>>>=20 >>>=20 >>> My suggestion would be not mention any of the other fields and talk >>> only of 20 bits of Label. I see other SR RFCs take similar approach. >>=20 >>=20 >> Sounds Good. I'm agree with you. >>=20 >>>=20 >>>>=20 >>>> 2. In some cases, a stateful PCE can request the PCC to allocate a >>>>=20 >>>> binding value. It may do so by sending a PCUpd message containing = an >>>> empty TE-PATH-BINDING TLV, i.e., no binding value is specified >>>> (making the length field of the TLV as 2). A PCE can also make = the >>>> request PCC to allocate a binding at the time of initiation by >>>> sending a PCInitiate message with an empty TE-PATH-BINDING TLV. >>>>=20 >>>>=20 >>>> As per new Binding TLV Structure below, BT is of 1 Byte and there = will be 3 Byte Reserved. >>>>=20 >>>> 0 1 2 = 3 >>>>=20 >>>> 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 >>>> = +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >>>> | Type | Length = | >>>> = +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >>>> | BT | Reserved = | >>>> = +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >>>> ~ Binding Value (variable length) = ~ >>>> = +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >>>>=20 >>>>=20 >>>> Now, an empty Binding TLV should have length of BT(1 Byte) + = Reserved (3 Byte) =3D 4 Byte instead of 2 Byte. >>>>=20 >>>> So, I do not understand how in the draft it is calculated as 2 = Byte. Could you please give me some clue? >>>=20 >>>=20 >>> This seems to be an error IMHO. 4 seems to be correct. >>=20 >>=20 >> Okay. So what would be your suggestion to developer who is = implementing this draft? Should it be taken as 4? If draft needs = correction >> when will that be published? >>>=20 >>>=20 >>> Thanks! >>> Dhruv >>>=20 >>>>=20 >>>> Thanks & Regards, >>>> Mrinmoy From nobody Thu Mar 26 05:07:49 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 656343A0A58; Thu, 26 Mar 2020 05:07:47 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.899 X-Spam-Level: X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id F26mB31EAy4b; Thu, 26 Mar 2020 05:07:45 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 382363A0970; Thu, 26 Mar 2020 05:07:43 -0700 (PDT) Received: from LHREML712-CAH.china.huawei.com (unknown [172.18.7.106]) by Forcepoint Email with ESMTP id 24379969BBAE385B2F2E; Thu, 26 Mar 2020 12:07:41 +0000 (GMT) Received: from fraeml710-chm.china.huawei.com (10.206.15.59) by LHREML712-CAH.china.huawei.com (10.201.108.35) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 26 Mar 2020 12:07:40 +0000 Received: from fraeml714-chm.china.huawei.com (10.206.15.33) by fraeml710-chm.china.huawei.com (10.206.15.59) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Thu, 26 Mar 2020 13:07:40 +0100 Received: from fraeml714-chm.china.huawei.com ([10.206.15.33]) by fraeml714-chm.china.huawei.com ([10.206.15.33]) with mapi id 15.01.1713.004; Thu, 26 Mar 2020 13:07:40 +0100 From: Giuseppe Fioccola To: "pce@ietf.org" CC: "draft-chen-pce-sr-policy-ifit@ietf.org" Thread-Topic: draft-chen-pce-sr-policy-ifit-00 Thread-Index: AdYDZPiy5aAaEO7OQTedSo/Gv7P1bA== Date: Thu, 26 Mar 2020 12:07:39 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.210.167.90] Content-Type: multipart/alternative; boundary="_000_aae9030445bd43e6b867bbb5169c5ad4huaweicom_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: [Pce] draft-chen-pce-sr-policy-ifit-00 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Mar 2020 12:07:48 -0000 --_000_aae9030445bd43e6b867bbb5169c5ad4huaweicom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Dear All, We published draft-chen-pce-sr-policy-ifit-00 (https://datatracker.ietf.org= /doc/draft-chen-pce-sr-policy-ifit/). This document aims to define the Extensions to PCEP to distribute SR polici= es carrying In-situ Flow Information Telemetry information. The scope is t= o enable automatically data plane on-path telemetry methods, like IOAM and = Alternate Marking, when the SR policy is applied. We would introduce it during the next virtual meeting, that has been moved = to May or June, and meanwhile, we would really appreciate inputs and review= s of the document. Best Regards, Giuseppe --_000_aae9030445bd43e6b867bbb5169c5ad4huaweicom_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dear All,

We published draft-chen-pce-sr-policy-ifit-00 (http= s://datatracker.ietf.org/doc/draft-chen-pce-sr-policy-ifit/).

This document aims to define the Extensions to PCEP = to distribute SR policies carrying In-situ Flow Information Telemetry infor= mation.  The scope is to enable automatically data plane on-path telem= etry methods, like IOAM and Alternate Marking, when the SR policy is applied.

 

We would introduce it during the next virtual meetin= g, that has been moved to May or June, and meanwhile, we would really appre= ciate inputs and reviews of the document.

 

Best Regards,

 

Giuseppe

--_000_aae9030445bd43e6b867bbb5169c5ad4huaweicom_-- From nobody Thu Mar 26 05:35:10 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6C7D43A08E7; Thu, 26 Mar 2020 05:35:07 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.098 X-Spam-Level: X-Spam-Status: No, score=-2.098 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Gf6NWR_iRReP; Thu, 26 Mar 2020 05:35:05 -0700 (PDT) Received: from mail-il1-x132.google.com (mail-il1-x132.google.com [IPv6:2607:f8b0:4864:20::132]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5D0A73A085B; Thu, 26 Mar 2020 05:35:05 -0700 (PDT) Received: by mail-il1-x132.google.com with SMTP id g15so5112691ilj.10; Thu, 26 Mar 2020 05:35:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=6Z286Gik0MpchMsOYAnBUlkZ7pU+2i9VT02rG45TfFc=; b=YBNYnjG3iVjEj9eKI5avOLYwifyfuOSLQ5t4PXTtSC1XGtJwOpJziATl/1kc66SZdE kCY9TD843APgorGAcbwTRY1h21DoWG+dS++w02FEwhWpR9a+m8tvyggKqMiAybcW9pJM L/guVt0oTLqxHrA7Nde7NGMOSj4NKsPqvjvrkBkoTrZQvDprAh/cZXkKg86k4fK7S/Mr F+2qVhdh415fo18e7Jqqlc7u++xN867rcUHUqiUuLLVjXm7czolEqTgrRD+JWbWy57WG /qFvSg1aZi94cP18mdITnCFlqnaA3pdQ3+2Sss2857EjeH2HRIJVDJiUp2VcsIM7zREA EGIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=6Z286Gik0MpchMsOYAnBUlkZ7pU+2i9VT02rG45TfFc=; b=BOXmy10WS1ecAC/S/+xPL711Nn2Hm1LDDj7S29hn2jTuYtbMn+MWMxXk3caRW7Sudc X2/gmhOKvMPSontiXs8SQywcl0v5LLfE0Zy8ZM/oOfzWLp9QvpU0SpmKCOdvmHcLLY3y 30Ch21MLjFOBzicaOne2z/kKqDRPmeKes7ex16Qn+oTRR+VkA8Z+bbrkyPm1tWAGRHLt 7Q/Citek6C1MVfdT9AX11aevzxN1djDh1YzRshg3C9mS5i1Wa9glXuvUwlanQ04JNzcQ 8GRD2onuJXf4FozyXwEZNDJyxg7+aCRuq1vkMMCGI3X0CoWEh67d2AYcI8L4ar4dxzWo MBEQ== X-Gm-Message-State: ANhLgQ1KX0E67giRn8SY5vS+pJ3tHYXI2BgSkSAdPi1sysdnzjv1olhm 0jBBEONnU8eq9bCoKPFUz5+3MEvP5Yid+MHZAvA= X-Google-Smtp-Source: ADFU+vuWfLr7olXdbMm848bAy2agXesy3s5JBO/NO7hYu81Id76p9phYccfprYTUXl2Ja8huphcOT7JfBhIZJqfNRL4= X-Received: by 2002:a92:96c6:: with SMTP id g189mr8147174ilh.276.1585226104398; Thu, 26 Mar 2020 05:35:04 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Dhruv Dhody Date: Thu, 26 Mar 2020 18:04:28 +0530 Message-ID: To: Giuseppe Fioccola Cc: "pce@ietf.org" , "draft-chen-pce-sr-policy-ifit@ietf.org" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Archived-At: Subject: Re: [Pce] draft-chen-pce-sr-policy-ifit-00 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Mar 2020 12:35:08 -0000 Hi Giuseppe, Thank you for introducing your draft on the mailing list. A quick high level questions - Could we make this generic: to be applied for any Path Setup Type (PST) in PCEP - RSVP-TE, SR, PCECC etc? I agree that SR might be of immediate importance; but from PCEP point of view, it could be useful to keep this generic so that we don't have to reinvent it for other PST. It might be good idea to tackle the need for this extension in PCEP - which to me is to make sure that the PCC includes IOAM header in the data packet with fields as specified by the PCE. Correct? Also suggest to add capability exchange during open messages before a peer uses this extension. Thanks! Dhruv (as a WG contributor) On Thu, Mar 26, 2020 at 5:38 PM Giuseppe Fioccola wrote: > > Dear All, > > We published draft-chen-pce-sr-policy-ifit-00 (https://datatracker.ietf.o= rg/doc/draft-chen-pce-sr-policy-ifit/). > > This document aims to define the Extensions to PCEP to distribute SR poli= cies carrying In-situ Flow Information Telemetry information. The scope is= to enable automatically data plane on-path telemetry methods, like IOAM an= d Alternate Marking, when the SR policy is applied. > > > > We would introduce it during the next virtual meeting, that has been move= d to May or June, and meanwhile, we would really appreciate inputs and revi= ews of the document. > > > > Best Regards, > > > > Giuseppe > > _______________________________________________ > Pce mailing list > Pce@ietf.org > https://www.ietf.org/mailman/listinfo/pce From nobody Thu Mar 26 07:00:41 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 88F5F3A08AA; Thu, 26 Mar 2020 07:00:39 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HwNibX6C86zP; 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Thu, 26 Mar 2020 15:00:33 +0100 From: Giuseppe Fioccola To: Dhruv Dhody CC: "pce@ietf.org" , "draft-chen-pce-sr-policy-ifit@ietf.org" Thread-Topic: [Pce] draft-chen-pce-sr-policy-ifit-00 Thread-Index: AdYDZPiy5aAaEO7OQTedSo/Gv7P1bP//+xIA///bhuA= Date: Thu, 26 Mar 2020 14:00:33 +0000 Message-ID: <43ed0fe248824034a0abeed871f99017@huawei.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.47.0.92] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: Re: [Pce] draft-chen-pce-sr-policy-ifit-00 X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Mar 2020 14:00:40 -0000 SGkgRGhydXYsDQpUaGFua3MgZm9yIHlvdXIgcXVpY2sgZmVlZGJhY2suDQoNClRoZSBjdXJyZW50 IHZlcnNpb24gb2YgdGhlIGRyYWZ0IGFkZHMgYXR0cmlidXRlIFRMVnMgdG8gdGhlIFNSIFBvbGlj eSBBc3NvY2lhdGlvbiBHcm91cCwgYnV0IHRoZSBzYW1lIFRMVnMgY2FuIGFsc28gYmUgZ2VuZXJp YyBpbiBQQ0VQLg0KV2UgY2FuIHN1cmVseSBldmFsdWF0ZSB0byBnZW5lcmFsaXplIGl0Lg0KDQpZ b3VyIGFzc3VtcHRpb24gaXMgY29ycmVjdCwgYW55d2F5IHRoaXMgZXh0ZW5zaW9uIGluIFBDRVAg d291bGQgYWxsb3cgUENDIHRvIGluY2x1ZGUgaW4gZ2VuZXJhbCBhbGwgdGhlIGF2YWlsYWJsZSBk YXRhIHBsYW5lIG9uLXBhdGggdGVsZW1ldHJ5IG1ldGhvZHMgKElPQU0sIEFsdGVybmF0ZSBNYXJr aW5nIGFuZCBzbyBvbikuDQoNCkEgY2FwYWJpbGl0eSBleGNoYW5nZSBiZWZvcmUgdGhlIHVzZSBv ZiB0aGlzIGV4dGVuc2lvbiBpcyBhIGdvb2Qgc3VnZ2VzdGlvbiBpbiBwYXJ0aWN1bGFyIGZvciBJ T0FNLCBidXQgbm8gbmVlZCBmb3IgQWx0ZXJuYXRlIE1hcmtpbmcuDQoNClJlZ2FyZHMsDQoNCkdp dXNlcHBlDQoNCg0KLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCkZyb206IERocnV2IERob2R5 IFttYWlsdG86ZGhydXYuaWV0ZkBnbWFpbC5jb21dIA0KU2VudDogVGh1cnNkYXksIE1hcmNoIDI2 LCAyMDIwIDE6MzQgUE0NClRvOiBHaXVzZXBwZSBGaW9jY29sYSA8Z2l1c2VwcGUuZmlvY2NvbGFA aHVhd2VpLmNvbT4NCkNjOiBwY2VAaWV0Zi5vcmc7IGRyYWZ0LWNoZW4tcGNlLXNyLXBvbGljeS1p Zml0QGlldGYub3JnDQpTdWJqZWN0OiBSZTogW1BjZV0gZHJhZnQtY2hlbi1wY2Utc3ItcG9saWN5 LWlmaXQtMDANCg0KSGkgR2l1c2VwcGUsDQoNClRoYW5rIHlvdSBmb3IgaW50cm9kdWNpbmcgeW91 ciBkcmFmdCBvbiB0aGUgbWFpbGluZyBsaXN0Lg0KDQpBIHF1aWNrIGhpZ2ggbGV2ZWwgcXVlc3Rp b25zIC0gQ291bGQgd2UgbWFrZSB0aGlzIGdlbmVyaWM6IHRvIGJlIGFwcGxpZWQgZm9yIGFueSBQ YXRoIFNldHVwIFR5cGUgKFBTVCkgaW4gUENFUCAtIFJTVlAtVEUsIFNSLCBQQ0VDQyBldGM/IEkg YWdyZWUgdGhhdCBTUiBtaWdodCBiZSBvZiBpbW1lZGlhdGUgaW1wb3J0YW5jZTsgYnV0IGZyb20g UENFUCBwb2ludCBvZiB2aWV3LCBpdCBjb3VsZCBiZSB1c2VmdWwgdG8ga2VlcCB0aGlzIGdlbmVy aWMgc28gdGhhdCB3ZSBkb24ndCBoYXZlIHRvIHJlaW52ZW50IGl0IGZvciBvdGhlciBQU1QuDQoN Ckl0IG1pZ2h0IGJlIGdvb2QgaWRlYSB0byB0YWNrbGUgdGhlIG5lZWQgZm9yIHRoaXMgZXh0ZW5z aW9uIGluIFBDRVAgLSB3aGljaCB0byBtZSBpcyB0byBtYWtlIHN1cmUgdGhhdCB0aGUgUENDIGlu Y2x1ZGVzIElPQU0gaGVhZGVyIGluIHRoZSBkYXRhIHBhY2tldCB3aXRoIGZpZWxkcyBhcyBzcGVj aWZpZWQgYnkgdGhlIFBDRS4gQ29ycmVjdD8NCg0KQWxzbyBzdWdnZXN0IHRvIGFkZCBjYXBhYmls aXR5IGV4Y2hhbmdlIGR1cmluZyBvcGVuIG1lc3NhZ2VzIGJlZm9yZSBhIHBlZXIgdXNlcyB0aGlz IGV4dGVuc2lvbi4NCg0KVGhhbmtzIQ0KRGhydXYgKGFzIGEgV0cgY29udHJpYnV0b3IpDQoNCk9u IFRodSwgTWFyIDI2LCAyMDIwIGF0IDU6MzggUE0gR2l1c2VwcGUgRmlvY2NvbGEgPGdpdXNlcHBl LmZpb2Njb2xhQGh1YXdlaS5jb20+IHdyb3RlOg0KPg0KPiBEZWFyIEFsbCwNCj4NCj4gV2UgcHVi bGlzaGVkIGRyYWZ0LWNoZW4tcGNlLXNyLXBvbGljeS1pZml0LTAwIChodHRwczovL2RhdGF0cmFj a2VyLmlldGYub3JnL2RvYy9kcmFmdC1jaGVuLXBjZS1zci1wb2xpY3ktaWZpdC8pLg0KPg0KPiBU aGlzIGRvY3VtZW50IGFpbXMgdG8gZGVmaW5lIHRoZSBFeHRlbnNpb25zIHRvIFBDRVAgdG8gZGlz dHJpYnV0ZSBTUiBwb2xpY2llcyBjYXJyeWluZyBJbi1zaXR1IEZsb3cgSW5mb3JtYXRpb24gVGVs ZW1ldHJ5IGluZm9ybWF0aW9uLiAgVGhlIHNjb3BlIGlzIHRvIGVuYWJsZSBhdXRvbWF0aWNhbGx5 IGRhdGEgcGxhbmUgb24tcGF0aCB0ZWxlbWV0cnkgbWV0aG9kcywgbGlrZSBJT0FNIGFuZCBBbHRl cm5hdGUgTWFya2luZywgd2hlbiB0aGUgU1IgcG9saWN5IGlzIGFwcGxpZWQuDQo+DQo+DQo+DQo+ IFdlIHdvdWxkIGludHJvZHVjZSBpdCBkdXJpbmcgdGhlIG5leHQgdmlydHVhbCBtZWV0aW5nLCB0 aGF0IGhhcyBiZWVuIG1vdmVkIHRvIE1heSBvciBKdW5lLCBhbmQgbWVhbndoaWxlLCB3ZSB3b3Vs ZCByZWFsbHkgYXBwcmVjaWF0ZSBpbnB1dHMgYW5kIHJldmlld3Mgb2YgdGhlIGRvY3VtZW50Lg0K Pg0KPg0KPg0KPiBCZXN0IFJlZ2FyZHMsDQo+DQo+DQo+DQo+IEdpdXNlcHBlDQo+DQo+IF9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fDQo+IFBjZSBtYWlsaW5n IGxpc3QNCj4gUGNlQGlldGYub3JnDQo+IGh0dHBzOi8vd3d3LmlldGYub3JnL21haWxtYW4vbGlz dGluZm8vcGNlDQo= From nobody Sun Mar 29 14:52:15 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C5D613A0DB4; Sun, 29 Mar 2020 14:52:13 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0 X-Spam-Level: X-Spam-Status: No, score=0 tagged_above=-999 required=5 tests=[SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id V_wrJwxalz7g; Sun, 29 Mar 2020 14:52:12 -0700 (PDT) Received: from rfc-editor.org (rfc-editor.org [4.31.198.49]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9D1DE3A0DB3; Sun, 29 Mar 2020 14:52:12 -0700 (PDT) Received: by rfc-editor.org (Postfix, from userid 30) id 12A34F4073D; Sun, 29 Mar 2020 14:52:11 -0700 (PDT) To: ietf-announce@ietf.org, rfc-dist@rfc-editor.org X-PHP-Originating-Script: 1005:ams_util_lib.php From: rfc-editor@rfc-editor.org Cc: rfc-editor@rfc-editor.org, drafts-update-ref@iana.org, pce@ietf.org Content-type: text/plain; charset=UTF-8 Message-Id: <20200329215211.12A34F4073D@rfc-editor.org> Date: Sun, 29 Mar 2020 14:52:11 -0700 (PDT) Archived-At: Subject: [Pce] =?utf-8?q?RFC_8745_on_Path_Computation_Element_Communicati?= =?utf-8?q?on_Protocol_=28PCEP=29_Extensions_for_Associating_Working_and_P?= =?utf-8?q?rotection_Label_Switched_Paths_=28LSPs=29_with_Stateful_PCE?= X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 29 Mar 2020 21:52:14 -0000 A new Request for Comments is now available in online RFC libraries. RFC 8745 Title: Path Computation Element Communication Protocol (PCEP) Extensions for Associating Working and Protection Label Switched Paths (LSPs) with Stateful PCE Author: H. Ananthakrishnan, S. Sivabalan, C. Barth, I. Minei, M. Negi Status: Standards Track Stream: IETF Date: March 2020 Mailbox: hari@netflix.com, msiva@cisco.com, cbarth@juniper.net, inaminei@google.com, mahend.ietf@gmail.com Pages: 15 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-pce-stateful-path-protection-11.txt URL: https://www.rfc-editor.org/info/rfc8745 DOI: 10.17487/RFC8745 An active stateful Path Computation Element (PCE) is capable of computing as well as controlling via Path Computation Element Communication Protocol (PCEP) Multiprotocol Label Switching Traffic Engineering (MPLS-TE) Label Switched Paths (LSPs). Furthermore, it is also possible for an active stateful PCE to create, maintain, and delete LSPs. This document defines the PCEP extension to associate two or more LSPs to provide end-to-end path protection. This document is a product of the Path Computation Element Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC From nobody Tue Mar 31 11:34:54 2020 Return-Path: X-Original-To: pce@ietfa.amsl.com Delivered-To: pce@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6BB253A28AC; Tue, 31 Mar 2020 11:34:46 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0 X-Spam-Level: X-Spam-Status: No, score=0 tagged_above=-999 required=5 tests=[SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id oG0mzcOR32gE; Tue, 31 Mar 2020 11:34:44 -0700 (PDT) Received: from rfc-editor.org (rfc-editor.org [4.31.198.49]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 277BC3A2835; Tue, 31 Mar 2020 11:34:19 -0700 (PDT) Received: by rfc-editor.org (Postfix, from userid 30) id 89B39F40721; Tue, 31 Mar 2020 11:34:15 -0700 (PDT) To: ietf-announce@ietf.org, rfc-dist@rfc-editor.org X-PHP-Originating-Script: 1005:ams_util_lib.php From: rfc-editor@rfc-editor.org Cc: rfc-editor@rfc-editor.org, drafts-update-ref@iana.org, pce@ietf.org Content-type: text/plain; charset=UTF-8 Message-Id: <20200331183415.89B39F40721@rfc-editor.org> Date: Tue, 31 Mar 2020 11:34:15 -0700 (PDT) Archived-At: Subject: [Pce] =?utf-8?q?RFC_8751_on_Hierarchical_Stateful_Path_Computati?= =?utf-8?q?on_Element_=28PCE=29?= X-BeenThere: pce@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Path Computation Element List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 Mar 2020 18:34:53 -0000 A new Request for Comments is now available in online RFC libraries. RFC 8751 Title: Hierarchical Stateful Path Computation Element (PCE) Author: D. Dhody, Y. Lee, D. Ceccarelli, J. Shin, D. King Status: Informational Stream: IETF Date: March 2020 Mailbox: dhruv.ietf@gmail.com, younglee.tx@gmail.com, daniele.ceccarelli@ericsson.com, jongyoon.shin@sk.com, d.king@lancaster.ac.uk Pages: 21 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-pce-stateful-hpce-15.txt URL: https://www.rfc-editor.org/info/rfc8751 DOI: 10.17487/RFC8751 A stateful Path Computation Element (PCE) maintains information on the current network state received from the Path Computation Clients (PCCs), including computed Label Switched Paths (LSPs), reserved resources within the network, and pending path computation requests. This information may then be considered when computing the path for a new traffic-engineered LSP or for any associated/dependent LSPs. The path-computation response from a PCE helps the PCC to gracefully establish the computed LSP. The Hierarchical Path Computation Element (H-PCE) architecture allows the optimum sequence of interconnected domains to be selected and network policy to be applied if applicable, via the use of a hierarchical relationship between PCEs. Combining the capabilities of stateful PCE and the hierarchical PCE would be advantageous. This document describes general considerations and use cases for the deployment of stateful, but not stateless, PCEs using the hierarchical PCE architecture. This document is a product of the Path Computation Element Working Group of the IETF. INFORMATIONAL: This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC