From nobody Fri Dec 1 08:16:51 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6F3B112878D for ; Fri, 1 Dec 2017 08:16:49 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.998 X-Spam-Level: X-Spam-Status: No, score=-0.998 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, FREEMAIL_REPLY=1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=no 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 cgAI0vH6DExL for ; Fri, 1 Dec 2017 08:16:48 -0800 (PST) Received: from mail-ot0-x241.google.com (mail-ot0-x241.google.com [IPv6:2607:f8b0:4003:c0f::241]) (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 04EEE127011 for ; Fri, 1 Dec 2017 08:16:48 -0800 (PST) Received: by mail-ot0-x241.google.com with SMTP id h9so9444786oti.0 for ; Fri, 01 Dec 2017 08:16:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:mime-version:date:message-id:subject:to; bh=+Wu4pzoKOLTkBxgtpJQdYxxvir1rSXuHHBsMFo+AGP8=; b=MtD+yzTxodILn8+vyg9enFXTujT3N9dl12eV8APkcEx3zxuFxl2QJPpdkmhWg6ixZe lTLQODihYdnG910ikg7WZpraFNL+EAl0VPbdqms5QW4SfZ5F+Vtd/xnuhkq4J6M9yCvT l+4IGXAPfJoVtML5WiTxqeE+cZZwbbKX5VT7vUexQnuxGoc7ItLFdpiQEMrCxOkkJIMU zpIC40JgyyJBaygrez2ebofUpeSpPTMi/d0TL2EW1FuOJ0cPRZCllSypEoLrDevl2YGL ufXTPBAbQF0/ZemVSavXUJSr99tWgj4l9FIZmYhfsqM/iHBYXQdmoJukevVV3dKRv2Uf Xwyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:mime-version:date:message-id:subject:to; bh=+Wu4pzoKOLTkBxgtpJQdYxxvir1rSXuHHBsMFo+AGP8=; b=WxKSaVERJGObkHMC1evcahL+RMIf8/nSbNobC+FtCPG8EKpLnNgahrI1if/iugs6cu B5JPK89uHtdJ6y/iEbYNmVJnfdBhlOVSlyHBvDytrX9i8ywlGEHPxIPBjlTiTvUPHrj3 HCCE1jjEgqW69Li9YIW1tpyvw3kcMDTJij92AapxUbzDu38LzwyxaH0TW8zFYNhNWTMS gQiGMiwqIqP54YvOamy97vHfG1ZKKR+vkbxYP1i8keArOusZbKTCVweeYv3hR5OgULwX S9t6ZDA02i8DeYKdw6NC1uenctggtCw6uff6xLyfd1VhKfmIHv3Lg4rzLThk50Yf93mS +Aow== X-Gm-Message-State: AJaThX7UsEpNo8NIuDdKqHJ4N3ten6JZSwDXm4ux7D/d4zwlwmRGkRUC TSA4XmVSfdhRvZ157TPRWfGQ/iDsCZuKNV8m9UM= X-Google-Smtp-Source: AGs4zMYrpb31Fur22/KHIxawKTA3mot3oxvUrcSLAnIocgunzpBchdQBahFxPerOqkohLoyrC50OzgNQKvhrQO5ZJXo= X-Received: by 10.157.53.16 with SMTP id o16mr8725109otc.307.1512145006979; Fri, 01 Dec 2017 08:16:46 -0800 (PST) Received: from 1058052472880 named unknown by gmailapi.google.com with HTTPREST; Fri, 1 Dec 2017 11:16:46 -0500 From: Alvaro Retana X-Mailer: Airmail (461) MIME-Version: 1.0 Date: Fri, 1 Dec 2017 11:16:46 -0500 Message-ID: To: bess@ietf.org Content-Type: multipart/alternative; boundary="001a113dff2cfd6cba055f49b1b4" Archived-At: Subject: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Dec 2017 16:16:49 -0000 --001a113dff2cfd6cba055f49b1b4 Content-Type: text/plain; charset="UTF-8" Dear bess WG: I am sad to report that Thomas Morin has decided not to continue as bess Co-Chair due to the demands of his job. Thomas: thank you for all the effort you have put into the WG, we all look forward to your continued contributions to the IETF! In consultation with Martin and the other ADs, we have asked Stephane Litkowski to take on the role of bess Co-Chair. As most of you know, Stephane works at Orange Business Services, has been involved in the IETF for several years and had made significant contributions in a number of WGs in and out of the Routing Area. Welcome Stephane! Stephane can be reached at stephane.litkowski@orange.com. This change is effective immediately. Thanks! Alvaro. --001a113dff2cfd6cba055f49b1b4 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable =
Dear bess WG:

I am sad to report that Thomas Morin has decided not to = continue as bess Co-Chair due to the demands of his job.=C2=A0 Thomas: than= k you for all the effort you have put into the WG, we all look forward to y= our continued contributions to the IETF!

In consul= tation with Martin and the other ADs, we have asked Stephane Litkowski to t= ake on the role of bess Co-Chair.=C2=A0 As most of you know, Stephane works= at Orange Business Services, has been involved in the IETF for several yea= rs and had made significant contributions in a number of WGs in and out of = the Routing Area.=C2=A0 Welcome Stephane!

Stephane= can be reached at stephan= e.litkowski@orange.com.

This change is effecti= ve immediately.

Thanks!

A= lvaro.
--001a113dff2cfd6cba055f49b1b4-- From nobody Fri Dec 1 08:27:32 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8D29D126DCA for ; Fri, 1 Dec 2017 08:27:30 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.699 X-Spam-Level: X-Spam-Status: No, score=-1.699 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, FREEMAIL_REPLY=1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=no 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 tdnNbn8wwO49 for ; Fri, 1 Dec 2017 08:27:29 -0800 (PST) Received: from mail-wm0-x22c.google.com (mail-wm0-x22c.google.com [IPv6:2a00:1450:400c:c09::22c]) (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 ABF6E126CC7 for ; Fri, 1 Dec 2017 08:27:28 -0800 (PST) Received: by mail-wm0-x22c.google.com with SMTP id g75so4560730wme.0 for ; Fri, 01 Dec 2017 08:27:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=b6FcOXIosMoJwFmeONQdBvPSaEPvZfndl1iRQC73HWk=; b=CxTU/vqUoKNzS8ZDbsFWtNgMhRHGS9LUSkUF0Wn2Jd96fladKsGdYnysKGGdvn0eqa 5AbTYTJSgxVIRGo3JEX1h/xbivUfcDeiopQAJjRbPGCU9bKLjWbWSKwEfCd0Jd4WPCxw jQxCodfX9idDNZDR6JAXSQpltnJpHlZhkHZQmpFRx+1AxK0LeB+qb8gAqioFcUJzcpd1 S+9UZN8gsEVtOtm2YGpOn+7/G9DSSmyj8KwNsHF3hpD6Zwigfpv0Pp6wJB0tnVQNwkaH XgSJbCbSRWXEcVW7Fcg3UTMneLyMuCIE3j5Ul9uA2F1ekQFHecXRmwlOJOEuAUP5QLyn U7yg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=b6FcOXIosMoJwFmeONQdBvPSaEPvZfndl1iRQC73HWk=; b=If96wvccMNz696s+WBpCvtt6L8czCSkQ0hg7cEksnibtyp6Ynp+Dtu0okzoWHbsjvL cMl3x97Jl9PXofxbJ6gX4YPGZThhlHVMhvsJCva5hL6EdLfXW1K6h38mOLD2xCLP+wD9 VfNUc74qFfEXRDtJQ8VnryR6PGDkFfOTTMRhZ+clzKKWdz5ItQXorXsTEqBhFplN/1Sl 93zZI8RuQmDDoJVZxEJwRIgQpFXfHaIE5GqNMq8l4hoDgEXl3dqVq5+iYyxTuZUoMudB EfIRRVyYcFIM9ge2OnnZO/ozj4yeNEeujoo6txSb5IAAlv7/u4/B6N850W6ZmTQq/Zil Lvsw== X-Gm-Message-State: AJaThX5lj2JbfxDrIMnoENv96QqHE8Gtmm3sml68Vh1da/4c0X1FNeDM pVxceRYvu/LPJFul3XWoYWzM0qAiaEzUrhplaA6SEg== X-Google-Smtp-Source: AGs4zMYmq7DjLDYpb+j7bCQNCOHvBbHqktYJIjBv+EAeOUBvH1hwG6JLQ4fB6wZ0FiPVhjU0swkMI4lTkJW6frUuwws= X-Received: by 10.80.207.193 with SMTP id i1mr3746988edk.55.1512145647130; Fri, 01 Dec 2017 08:27:27 -0800 (PST) MIME-Version: 1.0 Received: by 10.80.164.199 with HTTP; Fri, 1 Dec 2017 08:26:46 -0800 (PST) In-Reply-To: References: From: Tony Przygienda Date: Fri, 1 Dec 2017 08:26:46 -0800 Message-ID: To: Alvaro Retana Cc: bess@ietf.org Content-Type: multipart/alternative; boundary="089e0822063c2562f5055f49d800" Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Dec 2017 16:27:30 -0000 --089e0822063c2562f5055f49d800 Content-Type: text/plain; charset="UTF-8" Ack, welcome, great to have more and more operators getting involved in the sausage definition. This leads often to early discussions and better appreciation of the challenges of ultimately pouring the resulting tapestry of RFCs into bits and silicon ;-) --- tony On Fri, Dec 1, 2017 at 8:16 AM, Alvaro Retana wrote: > Dear bess WG: > > I am sad to report that Thomas Morin has decided not to continue as bess > Co-Chair due to the demands of his job. Thomas: thank you for all the > effort you have put into the WG, we all look forward to your continued > contributions to the IETF! > > In consultation with Martin and the other ADs, we have asked Stephane > Litkowski to take on the role of bess Co-Chair. As most of you know, > Stephane works at Orange Business Services, has been involved in the IETF > for several years and had made significant contributions in a number of WGs > in and out of the Routing Area. Welcome Stephane! > > Stephane can be reached at stephane.litkowski@orange.com. > > This change is effective immediately. > > Thanks! > > Alvaro. > > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess > > --089e0822063c2562f5055f49d800 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Ack, welcome, great to have more and more operators g= etting involved in the sausage definition. This leads often to early discus= sions and better appreciation of the challenges of ultimately pouring the r= esulting tapestry of RFCs into bits and silicon ;-)

--- tony =

On Fri,= Dec 1, 2017 at 8:16 AM, Alvaro Retana <aretana.ietf@gmail.com>= ; wrote:
Dear bess WG:

I am sad to report that Thoma= s Morin has decided not to continue as bess Co-Chair due to the demands of = his job.=C2=A0 Thomas: thank you for all the effort you have put into the W= G, we all look forward to your continued contributions to the IETF!

In consultation with Martin and the other ADs, we have as= ked Stephane Litkowski to take on the role of bess Co-Chair.=C2=A0 As most = of you know, Stephane works at Orange Business Services, has been involved = in the IETF for several years and had made significant contributions in a n= umber of WGs in and out of the Routing Area.=C2=A0 Welcome Stephane!
<= div>
Stephane can be reached at stephane.litkowski@orange.com.

This change is effective immediately.

=
Thanks!

Alvaro.

_______________________________________________
BESS mailing list
BESS@ietf.org
https://www.ietf.org/mailman/listinfo/bess


--089e0822063c2562f5055f49d800-- From nobody Fri Dec 1 08:48:56 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 925031292D3 for ; Fri, 1 Dec 2017 08:48:54 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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 BRv_a7CF8DnX for ; Fri, 1 Dec 2017 08:48:53 -0800 (PST) Received: from orange.com (mta135.mail.business.static.orange.com [80.12.70.35]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 390E6129418 for ; Fri, 1 Dec 2017 08:48:53 -0800 (PST) Received: from opfednr01.francetelecom.fr (unknown [xx.xx.xx.65]) by opfednr21.francetelecom.fr (ESMTP service) with ESMTP id BF988C0BA7; Fri, 1 Dec 2017 17:48:51 +0100 (CET) Received: from Exchangemail-eme2.itn.ftgroup (unknown [xx.xx.31.27]) by opfednr01.francetelecom.fr (ESMTP service) with ESMTP id A15FE1A0077; Fri, 1 Dec 2017 17:48:51 +0100 (CET) Received: from l-fipglop (10.168.234.2) by OPEXCLILM7C.corporate.adroot.infra.ftgroup (10.114.31.27) with Microsoft SMTP Server id 14.3.361.1; Fri, 1 Dec 2017 17:48:51 +0100 Message-ID: <20181_1512146931_5A2187F3_20181_172_1_1512146931.4117.139.camel@orange.com> From: To: Alvaro Retana , Date: Fri, 1 Dec 2017 17:48:51 +0100 In-Reply-To: References: Organization: Orange S.A. Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.2-1 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.168.234.2] Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Dec 2017 16:48:54 -0000 Alvaro Retana, 2017-12-01 11:16: > I am sad to report that Thomas Morin has decided not to continue as > bess Co-Chair due to the demands of his job. Thomas: thank you for > all the effort you have put into the WG, we all look forward to your > continued contributions to the IETF! Thank you Alvaro. It has been an honor and a pleasure for me to co-chair l3vpn & bess, trying to accompany the working group contributions and maybe contribute a bit to driving it into useful directions. The great experience of co-chairing with Martin was unarguably a plus in this journey. > In consultation with Martin and the other ADs, we have asked > Stephane Litkowski to take on the role of bess Co-Chair. [...] > Welcome Stephane! Welcome Stephane! :) Be aware that co-chairing bess comes with the risk of being possibly misrepresented [1]. And to all, many thanks for being great BESS contributors ; don't celebrate too fast though: I'll still possibly be around lurking for that little-thing-in-this-obscure-extended-community or the other thing on which there can be something to nitpick about ! ;) Bess regards, -Thomas [1] https://twitter.com/LlanOldDog/status/643796807852630016 _________________________________________________________________________________________________________________________ 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. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified. Thank you. From nobody Fri Dec 1 11:27:11 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AC9C3128768 for ; Fri, 1 Dec 2017 11:27:09 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.91 X-Spam-Level: X-Spam-Status: No, score=-2.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=-1, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=nokia.onmicrosoft.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 egxpi3IqGXqo for ; Fri, 1 Dec 2017 11:27:07 -0800 (PST) Received: from EUR02-VE1-obe.outbound.protection.outlook.com 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AJaThX5Yo8C8X8t+prsT8/5IZNN6qbkj4SfEawhDACt+zbzobVIuVZmi yZ/bGQxkaZ7AKyPThAMDBN1r1uSC X-Google-Smtp-Source: AGs4zMYdEWx7wWE7jnLQTB9c0GjPpQvuD+Ah0QDPM/rWUqKiwBQFk2Jxob2JN2x+llTXartr1uY/hg== X-Received: by 10.99.3.195 with SMTP id 186mr7367243pgd.103.1512165599669; Fri, 01 Dec 2017 13:59:59 -0800 (PST) Received: from [10.233.206.125] ([73.93.153.141]) by smtp.gmail.com with ESMTPSA id o184sm12796975pga.3.2017.12.01.13.59.57 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 01 Dec 2017 13:59:58 -0800 (PST) Content-Type: multipart/alternative; boundary=Apple-Mail-816E586D-CE7E-483B-A971-F02C38FE0888 Mime-Version: 1.0 (1.0) From: Jeff Tantsura X-Mailer: iPhone Mail (15B202) In-Reply-To: Date: Fri, 1 Dec 2017 13:59:57 -0800 Cc: "Rabadan, Jorge (Nokia - US/Mountain View)" , Alvaro Retana , "bess@ietf.org" , Tony Przygienda Content-Transfer-Encoding: 7bit Message-Id: <6CF2832A-E5A3-4593-AA2F-C70B89F3405A@gmail.com> References: <45F72ACC-BCC2-4A24-8474-BE60DF56A680@nokia.com> To: "Dolganow, Andrew (Nokia - SG/Singapore)" Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Dec 2017 22:00:02 -0000 --Apple-Mail-816E586D-CE7E-483B-A971-F02C38FE0888 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable +1 Regards, Jeff > On Dec 1, 2017, at 13:08, Dolganow, Andrew (Nokia - SG/Singapore) wrote: >=20 > +1 >=20 > Andrew >=20 > Sent from my iPhone >=20 > On Dec 1, 2017, at 11:27 AM, Rabadan, Jorge (Nokia - US/Mountain View) wrote: >=20 >> +1 >> =20 >> Welcome Stephane! >> And Thomas, thank you very much for all your hard work. You=E2=80=99ve be= en crucial for all the work in this WG.=20 >> =20 >> =20 >> On 12/1/17, 8:27 AM, "BESS on behalf of Tony Przygienda" wrote: >> =20 >> Ack, welcome, great to have more and more operators getting involved in t= he sausage definition. This leads often to early discussions and better appr= eciation of the challenges of ultimately pouring the resulting tapestry of R= FCs into bits and silicon ;-) >>=20 >> --- tony >> =20 >> On Fri, Dec 1, 2017 at 8:16 AM, Alvaro Retana wr= ote: >> Dear bess WG: >> =20 >> I am sad to report that Thomas Morin has decided not to continue as bess C= o-Chair due to the demands of his job. Thomas: thank you for all the effort= you have put into the WG, we all look forward to your continued contributio= ns to the IETF! >> =20 >> In consultation with Martin and the other ADs, we have asked Stephane Lit= kowski to take on the role of bess Co-Chair. As most of you know, Stephane w= orks at Orange Business Services, has been involved in the IETF for several y= ears and had made significant contributions in a number of WGs in and out of= the Routing Area. Welcome Stephane! >> =20 >> Stephane can be reached at stephane.litkowski@orange.com. >> =20 >> This change is effective immediately. >> =20 >> Thanks! >> =20 >> Alvaro. >>=20 >> _______________________________________________ >> BESS mailing list >> BESS@ietf.org >> https://www.ietf.org/mailman/listinfo/bess >>=20 >> =20 >> _______________________________________________ >> BESS mailing list >> BESS@ietf.org >> https://www.ietf.org/mailman/listinfo/bess > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess --Apple-Mail-816E586D-CE7E-483B-A971-F02C38FE0888 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable +1

Re= gards,
Jeff

On Dec 1, 2017, at 13:08, Dolganow, Andr= ew (Nokia - SG/Singapore) <a= ndrew.dolganow@nokia.com> wrote:

+1

Andrew

Sent from my iPhone

On Dec 1, 2017, at 11:27 AM, Rabadan, Jorge (Nokia - US/Mountain View) <<= a href=3D"mailto:jorge.rabadan@nokia.com">jorge.rabadan@nokia.com> wr= ote:

+1

 =

Welcome Stephane!=

And Thomas, thank= you very much for all your hard work. You=E2=80=99ve been crucial for all t= he work in this WG.

 =

 

On 12/1/17, 8:27 AM, "BE= SS on behalf of Tony Przygienda" <bess-bounces@ietf.org on behalf of tonysietf@gmail.com> wrote:

 

 

On Fri, Dec 1, 2017 at 8:16 AM, Alvaro Retana <aretana.ietf@gmail.com> wrote:

Dear bess WG:

 

I am sad to report that Thomas Morin has decided not to continue as bess C= o-Chair due to the demands of his job.  Thomas: thank you for all the effort you have put into the WG, we all look f= orward to your continued contributions to the IETF!=

 

In consultation with Martin and the other ADs, we hav= e asked Stephane Litkowski to take on the role of bess Co-Chair.  As mo= st of you know, Stephane works at Orange Business Services, has been involved in the IETF for several years and had m= ade significant contributions in a number of WGs in and out of the Routing A= rea.  Welcome Stephane!

 

Stephane can be reached at stephane.litkowski@orange.com.

 

This change is effective immediately.

 

Thanks!

 

Alvaro.


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boundary="_000_AM4PR03MB1713BC179E5E5080E57F9B679D390AM4PR03MB1713eurp_" MIME-Version: 1.0 X-OriginatorOrg: ecitele.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7627e149-2694-46d8-fdf6-08d539175621 X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Dec 2017 23:57:53.3955 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 2c514a61-08de-4519-b4c0-921fef62c42a X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM4PR03MB1715 X-CFilter-Loop: Reflected Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Dec 2017 23:58:04 -0000 --_000_AM4PR03MB1713BC179E5E5080E57F9B679D390AM4PR03MB1713eurp_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable +1 Thump typed by Sasha Vainshtein ________________________________ From: BESS on behalf of Henderickx, Wim (Nokia - B= E/Antwerp) Sent: Friday, December 1, 2017 4:41:58 PM To: Jeff Tantsura; Dolganow, Andrew (Nokia - SG/Singapore) Cc: Rabadan, Jorge (Nokia - US/Mountain View); Alvaro Retana; bess@ietf.or= g; Tony Przygienda Subject: Re: [bess] New bess Co-Chair And one more. Thx Thomas and welcome Stephane From: BESS on behalf of EXT Jeff Tantsura Date: Friday, 1 December 2017 at 14:00 To: Andrew Dolganow Cc: Jorge Rabadan , Tony Przygienda , "bess@ietf.org" , Alvaro Retana Subject: Re: [bess] New bess Co-Chair +1 Regards, Jeff On Dec 1, 2017, at 13:08, Dolganow, Andrew (Nokia - SG/Singapore) > wrote: +1 Andrew Sent from my iPhone On Dec 1, 2017, at 11:27 AM, Rabadan, Jorge (Nokia - US/Mountain View) > wrote: +1 Welcome Stephane! And Thomas, thank you very much for all your hard work. You=92ve been cruc= ial for all the work in this WG. On 12/1/17, 8:27 AM, "BESS on behalf of Tony Przygienda" on behalf of tonysietf@gmail.com> wrote: Ack, welcome, great to have more and more operators getting involved in th= e sausage definition. This leads often to early discussions and better app= reciation of the challenges of ultimately pouring the resulting tapestry o= f RFCs into bits and silicon ;-) --- tony On Fri, Dec 1, 2017 at 8:16 AM, Alvaro Retana > wrote: Dear bess WG: I am sad to report that Thomas Morin has decided not to continue as bess C= o-Chair due to the demands of his job. Thomas: thank you for all the effo= rt you have put into the WG, we all look forward to your continued contrib= utions to the IETF! In consultation with Martin and the other ADs, we have asked Stephane Litk= owski to take on the role of bess Co-Chair. As most of you know, Stephane= works at Orange Business Services, has been involved in the IETF for seve= ral years and had made significant contributions in a number of WGs in and= out of the Routing Area. Welcome Stephane! Stephane can be reached at stephane.litkowski@orange.com. This change is effective immediately. Thanks! Alvaro. _______________________________________________ BESS mailing list BESS@ietf.org https://www.ietf.org/mailman/listinfo/bess _______________________________________________ BESS mailing list BESS@ietf.org https://www.ietf.org/mailman/listinfo/bess _______________________________________________ BESS mailing list BESS@ietf.org https://www.ietf.org/mailman/listinfo/bess __________________________________________________________________________= _ This e-mail message is intended for the recipient only and contains inform= ation which is=20 CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have rece= ived this=20 transmission in error, please inform us by e-mail, phone or fax, and then = delete the original=20 and all copies thereof. __________________________________________________________________________= _ --_000_AM4PR03MB1713BC179E5E5080E57F9B679D390AM4PR03MB1713eurp_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
+1

Thump typed by Sasha Vainshtein

From: BESS <bess-bounc= es@ietf.org> on behalf of Henderickx, Wim (Nokia - BE/Antwerp) <wim.= henderickx@nokia.com>
Sent: Friday, December 1, 2017 4:41:58 PM
To: Jeff Tantsura; Dolganow, Andrew (Nokia - SG/Singapore)
Cc: Rabadan, Jorge (Nokia - US/Mountain View); Alvaro Retana; bess@= ietf.org; Tony Przygienda
Subject: Re: [bess] New bess Co-Chair
 

And one more. Thx Thomas and w= elcome Stephane

 

From: BESS <bess-bou= nces@ietf.org> on behalf of EXT Jeff Tantsura <jefftant.ietf@gmail.c= om>
Date: Friday, 1 December 2017 at 14:00
To: Andrew Dolganow <andrew.dolganow@nokia.com>
Cc: Jorge Rabadan <jorge.rabadan@nokia.com>, Tony Przygienda = <tonysietf@gmail.com>, "bess@ietf.org" <bess@ietf.org&g= t;, Alvaro Retana <aretana.ietf@gmail.com>
Subject: Re: [bess] New bess Co-Chair

 

+1

Regards,

Jeff


On Dec 1, 2017, at 13:08, Dolganow, Andrew (Nokia - SG/Singapore) <andrew.dolganow@nokia.com>= wrote:

+1

Andrew

 

Sent from my iPhone


On Dec 1, 2017, at 11:27 AM, Rabadan, Jorge (Nokia - US/Mountain View) <= ;jorge.rabadan@nokia.com>= ; wrote:

+1

 

Welcome Stephane!

And Thomas, thank you very much for all your hard work. You=92= ve been crucial for all the work in this WG.

 

 

On 12/1/17, 8:27 AM,= "BESS on behalf of Tony Przygienda" <bess-bounces@ietf.org on behalf of tonysietf@gmail.com> wrote:<= /p>

 

 = ;

On Fr= i, Dec 1, 2017 at 8:16 AM, Alvaro Retana <aretana.ietf@gmail.= com> wrote:

Dear bess WG:

 

I am sad to report that= Thomas Morin has decided not to continue as bess Co-Chair due to the dema= nds of his job.  Thomas: thank you for all the effort you have put into the WG, we all look forward to your continue= d contributions to the IETF!

 = ;

In co= nsultation with Martin and the other ADs, we have asked Stephane Litkowski= to take on the role of bess Co-Chair.  As most of you know, Stephane= works at Orange Business Services, has been involved in the IETF for several years and had made significant contributions in a= number of WGs in and out of the Routing Area.  Welcome Stephane!

 = ;

Steph= ane can be reached at = stephane.litkowski@orange.com.

 = ;

This = change is effective immediately.

 = ;

Thank= s!

 

Alvaro.


_______________________________________________
BESS mailing list
BESS@ietf.org
https://www.ietf.org/mailman/listinfo/bess

 = ;

_____= __________________________________________
BESS mailing list
BESS@ietf.org
https://www.ietf.org/mailman/listinfo/bess

_____= __________________________________________
BESS mailing list
BESS@ietf.org
https://www.ietf.org/mailman/listinfo/bess


__________________________________________________________________________= _

This e-mail message is intended for the recipient only and contains inform= ation which is
CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have rece= ived this
transmission in error, please inform us by e-mail, phone or fax, and then = delete the original
and all copies thereof.
__________________________________________________________________________= _
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([64.101.220.149]) with mapi id 15.00.1320.000; Fri, 1 Dec 2017 20:04:28 -0500 From: "Patrice Brissette (pbrisset)" To: Alvaro Retana , "bess@ietf.org" Thread-Topic: [bess] New bess Co-Chair Thread-Index: AQHTawmBg8HPVBkJ1UqKLWHrsjUs8g== Date: Sat, 2 Dec 2017 01:04:28 +0000 Message-ID: References: <45F72ACC-BCC2-4A24-8474-BE60DF56A680@nokia.com> In-Reply-To: <45F72ACC-BCC2-4A24-8474-BE60DF56A680@nokia.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.27.0.171010 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.82.252.52] Content-Type: multipart/alternative; boundary="_000_F8FFAF9440784ED08C74F0C411924B29ciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: 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--_000_F8FFAF9440784ED08C74F0C411924B29ciscocom_-- From nobody Sat Dec 2 04:44:24 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 868021287A3 for ; Sat, 2 Dec 2017 04:44:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.947 X-Spam-Level: X-Spam-Status: No, score=0.947 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DOS_OUTLOOK_TO_MX=2.845, HTML_MESSAGE=0.001, URIBL_BLOCKED=0.001] autolearn=no 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 aXQthKJho8pS for ; Sat, 2 Dec 2017 04:44:20 -0800 (PST) Received: from hickoryhill-consulting.com (50-245-122-97-static.hfc.comcastbusiness.net [50.245.122.97]) (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 B6C85124F57 for ; Sat, 2 Dec 2017 04:44:20 -0800 (PST) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=174.230.159.179; From: "Susan Hares" To: "'Alvaro Retana'" , References: In-Reply-To: Date: Sat, 2 Dec 2017 07:44:18 -0500 Message-ID: <00f501d36b6b$44f6bd10$cee43730$@ndzh.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00F6_01D36B41.5C20B510" X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQKc/1dBjforfr7r1aB4XvekYA5tlKGc17Pw Content-Language: en-us X-Authenticated-User: skh@ndzh.com Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Dec 2017 12:44:22 -0000 This is a multipart message in MIME format. ------=_NextPart_000_00F6_01D36B41.5C20B510 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Stephane =E2=80=93 Thanks for agreeing to be chair!=20 =20 Sue Hares=20 =20 From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Alvaro Retana Sent: Friday, December 1, 2017 11:17 AM To: bess@ietf.org Subject: [bess] New bess Co-Chair =20 Dear bess WG: =20 I am sad to report that Thomas Morin has decided not to continue as bess = Co-Chair due to the demands of his job. Thomas: thank you for all the = effort you have put into the WG, we all look forward to your continued = contributions to the IETF! =20 In consultation with Martin and the other ADs, we have asked Stephane = Litkowski to take on the role of bess Co-Chair. As most of you know, = Stephane works at Orange Business Services, has been involved in the = IETF for several years and had made significant contributions in a = number of WGs in and out of the Routing Area. Welcome Stephane! =20 Stephane can be reached at stephane.litkowski@orange.com. =20 This change is effective immediately. =20 Thanks! =20 Alvaro. ------=_NextPart_000_00F6_01D36B41.5C20B510 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Stephane =E2=80=93 Thanks for agreeing to be chair! =

 

Sue Hares

 

From:= = BESS [mailto:bess-bounces@ietf.org] On Behalf Of Alvaro = Retana
Sent: Friday, December 1, 2017 11:17 AM
To: = bess@ietf.org
Subject: [bess] New bess = Co-Chair

 

Dear = bess WG:

&nbs= p;

I am sad = to report that Thomas Morin has decided not to continue as bess Co-Chair = due to the demands of his job.  Thomas: thank you for all the = effort you have put into the WG, we all look forward to your continued = contributions to the IETF!

&nbs= p;

In = consultation with Martin and the other ADs, we have asked Stephane = Litkowski to take on the role of bess Co-Chair.  As most of you = know, Stephane works at Orange Business Services, has been involved in = the IETF for several years and had made significant contributions in a = number of WGs in and out of the Routing Area.  Welcome = Stephane!

&nbs= p;

Stephane = can be reached at stephane.litkowski@orange.c= om.

&nbs= p;

This = change is effective immediately.

&nbs= p;

Thanks!

&nbs= p;

Alvaro.

------=_NextPart_000_00F6_01D36B41.5C20B510-- From nobody Sun Dec 3 17:57:19 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5AE9E12726E for ; Sun, 3 Dec 2017 17:57:18 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.22 X-Spam-Level: X-Spam-Status: No, score=-4.22 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-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 QwMt07ZgnNhs for ; Sun, 3 Dec 2017 17:57:16 -0800 (PST) Received: from huawei.com (lhrrgout.huawei.com [194.213.3.17]) (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 466BC127241 for ; Sun, 3 Dec 2017 17:57:16 -0800 (PST) Received: from LHREML714-CAH.china.huawei.com (unknown [172.18.7.107]) by Forcepoint Email with ESMTP id 4F8EA8B19CA31 for ; Mon, 4 Dec 2017 01:57:13 +0000 (GMT) Received: from NKGEML414-HUB.china.huawei.com (10.98.56.75) by LHREML714-CAH.china.huawei.com (10.201.108.37) with Microsoft SMTP Server (TLS) id 14.3.361.1; Mon, 4 Dec 2017 01:57:13 +0000 Received: from NKGEML515-MBS.china.huawei.com ([169.254.5.57]) by nkgeml414-hub.china.huawei.com ([10.98.56.75]) with mapi id 14.03.0361.001; Mon, 4 Dec 2017 09:57:11 +0800 From: "Dongjie (Jimmy)" To: Jeff Tantsura , "Dolganow, Andrew (Nokia - SG/Singapore)" CC: "Rabadan, Jorge (Nokia - US/Mountain View)" , Tony Przygienda , "bess@ietf.org" , Alvaro Retana Thread-Topic: [bess] New bess Co-Chair Thread-Index: AQHTar/Zz+i5ndB7WkeKldzYTsm1gqMuJsAAgAAyX4CAABxcgIAADlyAgAPshFA= Date: Mon, 4 Dec 2017 01:57:10 +0000 Message-ID: <76CD132C3ADEF848BD84D028D243C92798195D26@NKGEML515-MBS.china.huawei.com> References: <45F72ACC-BCC2-4A24-8474-BE60DF56A680@nokia.com> <6CF2832A-E5A3-4593-AA2F-C70B89F3405A@gmail.com> In-Reply-To: <6CF2832A-E5A3-4593-AA2F-C70B89F3405A@gmail.com> Accept-Language: en-US, zh-CN Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.130.151.75] Content-Type: multipart/alternative; boundary="_000_76CD132C3ADEF848BD84D028D243C92798195D26NKGEML515MBSchi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Dec 2017 01:57:18 -0000 --_000_76CD132C3ADEF848BD84D028D243C92798195D26NKGEML515MBSchi_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 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(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 082BC12421A for ; Sun, 3 Dec 2017 18:07:27 -0800 (PST) Received: from LHREML712-CAH.china.huawei.com (unknown [172.18.7.107]) by Forcepoint Email with ESMTP id 26865F96EAFD for ; Mon, 4 Dec 2017 02:07:24 +0000 (GMT) Received: from DGGEML405-HUB.china.huawei.com (10.3.17.49) by LHREML712-CAH.china.huawei.com (10.201.108.35) with Microsoft SMTP Server (TLS) id 14.3.361.1; Mon, 4 Dec 2017 02:07:24 +0000 Received: from DGGEML510-MBX.china.huawei.com ([169.254.2.54]) by dggeml405-hub.china.huawei.com ([10.3.17.49]) with mapi id 14.03.0361.001; Mon, 4 Dec 2017 10:07:21 +0800 From: Mach Chen To: "Henderickx, Wim (Nokia - BE/Antwerp)" , "Jeff Tantsura" , "Dolganow, Andrew (Nokia - SG/Singapore)" CC: "Rabadan, Jorge (Nokia - US/Mountain View)" , Alvaro Retana , "bess@ietf.org" , Tony Przygienda Thread-Topic: [bess] New bess Co-Chair Thread-Index: AQHTar/byTMFr7KB6EWDVljLNDWX7aMuJsAAgAAyX4CAABxcgIAADlyAgAALvQCAA+QBIA== Date: Mon, 4 Dec 2017 02:07:20 +0000 Message-ID: References: <45F72ACC-BCC2-4A24-8474-BE60DF56A680@nokia.com> <6CF2832A-E5A3-4593-AA2F-C70B89F3405A@gmail.com> In-Reply-To: Accept-Language: en-US, zh-CN Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.194.201] Content-Type: multipart/alternative; boundary="_000_F73A3CB31E8BE34FA1BBE3C8F0CB2AE2922DF94Bdggeml510mbxchi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Dec 2017 02:07:29 -0000 --_000_F73A3CB31E8BE34FA1BBE3C8F0CB2AE2922DF94Bdggeml510mbxchi_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 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To: "IETF-Announce" X-Test-IDTracker: no X-IETF-IDTracker: 6.66.0 Auto-Submitted: auto-generated Precedence: bulk Cc: The IESG , aretana.ietf@gmail.com, Thomas Morin , thomas.morin@orange.com, bess-chairs@ietf.org, draft-ietf-bess-evpn-etree@ietf.org, bess@ietf.org, rfc-editor@rfc-editor.org MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-ID: <151239921129.6314.16611743884087943290.idtracker@ietfa.amsl.com> Date: Mon, 04 Dec 2017 06:53:31 -0800 Archived-At: Subject: [bess] Protocol Action: 'E-TREE Support in EVPN & PBB-EVPN' to Proposed Standard (draft-ietf-bess-evpn-etree-14.txt) X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Dec 2017 14:53:31 -0000 The IESG has approved the following document: - 'E-TREE Support in EVPN & PBB-EVPN' (draft-ietf-bess-evpn-etree-14.txt) as Proposed Standard This document is the product of the BGP Enabled ServiceS Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-bess-evpn-etree/ Technical Summary The Metro Ethernet Forum (MEF) has defined a rooted-multipoint Ethernet service known as Ethernet Tree (E-Tree). A solution framework for supporting this service in MPLS networks is proposed in RFC7387 ("A Framework for Ethernet Tree (E-Tree) Service over a Multiprotocol Label Switching (MPLS) Network"). This document discusses how those functional requirements can be easily met with Ethernet VPN (EVPN) and how EVPN offers a more efficient implementation of these functions. This document makes use of the most significant bit of the scope governed by the IANA registry created by RFC7385, and hence updates RFC7385 accordingly. Working Group Summary Nothing substantial. A first call for adoption did not lead to adoption, for lack of an observable support base, but the document was later adopted on a second pass. Document Quality The document is of satisfying technical and editorial quality. Three vendors are known to be working on an implementation or update of pre-standard implementations. Personnel Thomas Morin is the Document Shepherd. Alvaro Retana is the Responsible Area Director. From nobody Mon Dec 4 13:49:30 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B33D1128CD5; Mon, 4 Dec 2017 13:49:28 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.998 X-Spam-Level: X-Spam-Status: No, score=-1.998 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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 7ct9E5SQlacf; Mon, 4 Dec 2017 13:49:25 -0800 (PST) Received: from mail-ot0-x241.google.com (mail-ot0-x241.google.com [IPv6:2607:f8b0:4003:c0f::241]) (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 72AF4128BB7; Mon, 4 Dec 2017 13:49:25 -0800 (PST) Received: by mail-ot0-x241.google.com with SMTP id v21so16127173oth.6; Mon, 04 Dec 2017 13:49:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:mime-version:date:message-id:subject:to:cc; bh=xplbdpkacz6S1PEGrgCoaLrMABXaGvuI/ONdO90mmKk=; b=WH+OAw6PdSKchgCmd9PcHJKzBh1qlz92jm8SRjt7pVgKDOuVJX1pdzkhou2XbG3VQJ ZRdl6CN87RU5YfhxO+PVL7Pc8ttrmBavty3L1bCXKRu22v98S0cns8L4UuNxH1J/Tky6 URoz0ZKtlivtoYVxRMdYdawDfk4Vp/7B3wwMkjfCaXpTv7hRAno0VBkLjyZAMW6lzX7L osulHP589us/UVzES06rWas0JLnHrBhh4YTOXX70QYkEmfZpg5F3BAXSIQfIXGQR3RCt bBrbjtXiNL6MV51WcfXJ3352Tb15h8JbA/aO1F2L1sRHU1ygLb794yQx/DQyoFzkfSCG 9n6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:mime-version:date:message-id:subject:to:cc; bh=xplbdpkacz6S1PEGrgCoaLrMABXaGvuI/ONdO90mmKk=; b=ENaXG6tm0WAN0+qZp+ENeS+JYbCW+cWJ28mgamoTyl+sk7K01h9GrlwQy59eds7so4 qHmPo5oFStWY1hEyMwpatQ/F9+1Q/T8T16S70vUFHs7keVH1zyMZBUlup/80oIsdioO2 mCjM4UsYewVHVetLuiFi5VX0VTV5YYHR83lATuO3AmoZtxlrK79js5/SuhyEOFBloZ1O oX8iWnPm82VmrxGUmMbEJcxallHoy+lVOgFvCdcy/y5epm34feXkH1EW7fcIWlAAqKRI dmvTZNSUjVdJjJOaQHh8syPcG7VE2XcBEePuwBJpTifzUCHNy0bS+eMj1/uVMkAGOrxc cQog== X-Gm-Message-State: AJaThX6Vx1OSfulUzoB4QrRCYzHu3W5IMdgWoeAOn8gqa/nuRcEMIZl2 PjywMSzqsyzTQvQzgtk7QvbTyosyzoshVOEGoaw= X-Google-Smtp-Source: AGs4zMaz1AvdnzMacw5ztq7QpMVj5bsG4+eDUo//qF9c4bwHoxXqpZdl+gb7sbIKcNxqTsgbWzFRAyOxJjJKjAw/fnQ= X-Received: by 10.157.22.183 with SMTP id c52mr16040361ote.317.1512424164612; Mon, 04 Dec 2017 13:49:24 -0800 (PST) Received: from 1058052472880 named unknown by gmailapi.google.com with HTTPREST; Mon, 4 Dec 2017 16:49:24 -0500 From: Alvaro Retana X-Mailer: Airmail (461) MIME-Version: 1.0 Date: Mon, 4 Dec 2017 16:49:24 -0500 Message-ID: To: bess-chairs@ietf.org Cc: Thomas Morin , bess@ietf.org Content-Type: multipart/alternative; boundary="001a1141c09014e01a055f8ab13a" Archived-At: Subject: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Dec 2017 21:49:28 -0000 --001a1141c09014e01a055f8ab13a Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear Authors: I just finished reading this document (finally!). I have a some comments (see below) which I think should be easy to address. I also have some bigger issues that we=E2=80=99ll need the Chairs=E2=80=99 = help to solve: (1) Coordination with nv03 For the Chairs: Except for some clarification comments [1] related to the current version, I see no other traffic in the nvo3 list related to this document. Was there some other coordination that I=E2=80=99m missing? I = am not questioning having this document in bess (that=E2=80=99s perfectly fine); I= =E2=80=99m just raising the needed coordination with other WGs, from the Charter: "The working group will also coordinate with...NVO3 working group for coordinati= on of protocols to support data center VPNs.=E2=80=9D What about Geneve (draft-ietf-nvo3-geneve)? The nvo3 WG is focusing on Geneve as the Standard encapsulation, but this document doesn=E2=80=99t even mention it. (2) Document Status Why is this a Standards Track document? The Abstract/Introduction say that =E2=80=9Cthis document describes how Ethernet VPN (EVPN) can be used as an = NVO solution and explores applicability of EVPN functions and procedures.=E2=80= =9D -- if it=E2=80=99s just a description (as the text clearly is), and not a tech= nical specification, then why it is not Informational? I can see how we could call it an Applicability Statement (rfc2026) and still publish it in the Standards Track. If we want to go that way, we would need some minor updates to make it clear that this is an Applicability Statement and is not intended to stand in for a Technical Specification. I am not clear on the process as it related to possible DownRefs (see below), but I=E2=80=99m willing to Last Call an Applicability Statement in the Standards Track=E2=80=A6if that is what you want. Thanks! Alvaro. [1] https://mailarchive.ietf.org/arch/msg/nvo3/cd0hOfb966ROcL4t8JCrBD28bBg/?qid= =3Dc9f632dc5d6aab5e4b22972bb242baf0 Major: M1. Section 5.1.2.1 (Auto Derivation of RT) shows a =E2=80=9Cpacket format= =E2=80=9D to illustrate how the RT can be auto-derived. Without any context, the description doesn=E2=80=99t make much sense: the fields are not described i= n order, the reader is expected to know about global and local administrative fields, the =E2=80=9CA-bit=E2=80=9D (or the Type field) are not mentioned i= n the description, people could probably guess that =E2=80=9CD-ID=E2=80=9D means = =E2=80=9Cdomain-id=E2=80=9D, there=E2=80=99s no indication of what to do with that =E2=80=9Cpacket forma= t=E2=80=9D, etc. Please clean the description up, include clearer explanations and some references can=E2=80=99t hurt. M1.2. What about 4-byte ASNs? M2. From 5.1.3 (Constructing EVPN BGP Routes): =E2=80=9C...routes MAY be advertised with multiple encapsulation types as long as they use the same EVPN multi-homing procedures (section 8.3.1, Split Horizon)=E2=80=A6=E2=80=9D. Is Split Horiz= on an example, or the only multi-homing procedure that should be considered? Please be clear. M3. From 5.2 (MPLS over GRE): M3.1. =E2=80=9C...when it is used in conjunction with EVPN the GRE key fiel= d SHOULD be present, and SHOULD be used to provide a 32-bit entropy field.=E2=80=9D = What are the cases when it is ok not to include the field, or use it for that purpose? IOW, why are these SHOULDs not MUSTs? Or maybe, when is the key field needed? M3.2. "The Checksum and Sequence Number fields are not needed and their corresponding C and S bits MUST be set to zero.=E2=80=9D This is different= than what rfc4023 specifies (not a problem). If you=E2=80=99re specifying the s= etting of the bits, then you should be more prescriptive with whether the fields are included of not; suggestion: "The Checksum and Sequence Number fields MUST NOT be included and the corresponding C and S bits in the GRE Packet Header MUST be set to zero.=E2=80=9D M4. In 7.1 (Impact on EVPN BGP Routes & Attributes for VXLAN/NVGRE Encapsulation) M4.1. These 2 MUSTs seem out of place as they are used to explain, and not in a Normative way: =E2=80=9C ..the RD must be a unique value per EVI or pe= r NVE as described in [RFC7432]. In other words, whenever there is more than one administrative domain for global VNI, then a unique RD MUST be used, or whenever the VNI value have local significance, then a unique RD MUST be used.=E2=80=9D s/MUST/must M4.2. This SHOULD is also out of place because the standardization was already done in rfc7432 (this document is just mentioning it): =E2=80=9C...= as noted in section 8.6 of [RFC7432]...the single-homing ingress NVE SHOULD be able to=E2=80=A6=E2=80=9D. s/SHOULD/should M4.3. Section 10.2.1 then points back at the text in 7.1 using another SHOULD=E2=80=A6again, s/SHOULD/should M5. 7.2 (Impact on EVPN Procedures for VXLAN/NVGRE Encapsulation) also includes a superfluous SHOULD: =E2=80=9C...as noted in section 8.6 of [RFC7= 432]...a single-homing ingress NVE SHOULD implement=E2=80=A6=E2=80=9D. s/SHOULD/sho= uld M6. The introductory paragraph in Section 8.1 (EVPN Multi-Homing Features) says that it is used to "recap the multi-homing features of EVPN to highlig= ht the encapsulation dependencies. The section only describes the features and functions at a high-level. For more details, the reader is to refer to [RFC7432].=E2=80=9D However some of the 8.1.* sub-sections contain Normati= ve language. Is that Normative language specifying new behavior introduced in this document, or highlighting the recap from rfc7432? If there=E2=80=99s = no new behavior, then please use lower cases. If there is new behavior, then it would be nice to clarify that in 8.1. M7. In 8.3.1 (Split Horizon), this MUST is out of place because it is not specifying anything: =E2=80=9C...other means of performing the split-horizo= n filtering function MUST be devised.=E2=80=9D s/MUST/must M8. References M8.1. TUNNEL-ENCAP (aka draft-ietf-idr-tunnel-encaps) should be Normative, which btw is marked to Obsolete rfc5512; I mention this because both are listed in several parts, so you should take rfc5512 out. M8.2. These should also be Normative: RFC7348, NVGRE, VXLAN-GPE, RFC4023 Minor: P1. Please use the new Normative Language boilerplate (rfc8174). P2. From 7.1 (Impact on EVPN BGP Routes & Attributes for VXLAN/NVGRE Encapsulation): =E2=80=9C...reduces the required routes and attributes to t= he following subset of four out of eight=E2=80=9D. Please either list the att= ributes that are not needed, or put in a reference to where those can be found. (rfc7432 ??) P3. From 8.3.1 (Split Horizon): "In order to prevent unhealthy interactions=E2=80=A6=E2=80=9D. I would really like to see more here: what = does =E2=80=9Cunhealthy interactions=E2=80=9D mean? Can it result in loops or lost traffic or some= other =E2=80=9Cbad=E2=80=9D thing? I note that even through you =E2=80=9Cprohib= it=E2=80=9D the configuration, you don=E2=80=99t go as far as mandating that it not to be used (MUST NOT),= which makes me want to understand more the potential effects=E2=80=A6if it happen= s, what are the risks? P4. In 8.3.3 (Unknown Unicast Traffic Designation): =E2=80=9C...the ingress= PE MAY use a flag-bit in the VxLAN header to indicate BUM traffic type. Bit 6 of flag field in the VxLAN header is used for this purpose per section 3.1 of [VXLAN-GPE].=E2=80=9D Suggestion: =E2=80=9C=E2=80=A6the ingress PE MAY set= the BUM Traffic Bit (B bit) [VXLAN-GPE] to indicate BUM traffic.=E2=80=9D P5. Security Considerations: I find that the suggestion of IPSec may be out of place in this document; this document pretty much just talks about how to use EVPN, it doesn=E2=80=99t really introduce new capabilities, so u= nless IPSec is mentioned in rfc7432 (which is not =E2=80=94 and not even mentione= d in this section), or recommended in rfc4271 (which is not) then I would refrain from including such recommendation here. In fact, I think that pointing at the Security Considerations of existing RFCs should be enough. P5.1. The reference to rfc4301 (beyond what VXLAN/NVGRE) mention seems like you=E2=80=99re trying too hard. I would just put explicit references to th= e encapsulations since they should be dealing with security themselves. P6. References: [KEYWORDS] shows up twice. I think that the reference to rfc4271 can be made Informative. Nits: N1. Section 3 (Terminology) literally transcribes several definitions from rfc7432/rfc7365 =E2=80=94 while it is ok, I personally prefer just poi= nting at the definitions: it=E2=80=99s just easier to have the other RFCs be the authoritative source and not rely on maintaining the definitions in sync should they ever change. Suggestion: =E2=80=9CThe reader is expected to be familiar with the terminology in =E2=80=A6=E2=80=9D. N2. s/the VNI value have local significance/the VNI value has local significance N3. s/it is recommend/it is recommended N4. Please be consistent in naming references, some list the RFC number, while others a name... --001a1141c09014e01a055f8ab13a Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable =
D= ear Authors:
=
I= =C2=A0just finished reading this document (finally!).=C2=A0 I have a some c= omments (see below) which I think=C2=A0should be easy to address.

I also have some bigger issues that we=E2=80=99ll need = the Chairs=E2=80=99 help to solve:

(1) Coordin= ation with nv03

For the=C2=A0Chairs:=C2=A0=C2=A0Except for so= me clarification comments [1] related to the current version, I see no othe= r traffic in the nvo3 list related to this document.=C2=A0= =C2=A0Was there some other coordination tha= t I=E2=80=99m missing? =C2=A0 I am not questioning having this document in = bess (that=E2=80=99s perfectly fine); I=E2=80=99m just raising the=C2=A0nee= ded coordination with other WGs, from the Charter: "The working group = will also coordinate with...NV= O3 working group for=C2=A0coordination of p= rotocols to support data center VPNs.=E2=80=9D


What about Geneve (draft-ietf-nvo3-geneve)?=C2=A0 The nvo3 WG is focusing= on Geneve as the Standard encapsulation, but this document doesn=E2=80=99t= even=C2=A0mention it.


=C2=A0=

(2) Document Status


Why i= s this a Standards Track document?=C2=A0=C2=A0The Abstract/Introduction say= that =E2=80=9Cthis document describes how Ethernet VPN (EVPN) can be used = as an NVO solution and explores applicability of EVPN functions and procedu= res.=E2=80=9D=C2=A0=C2=A0-- if it=E2=80=99s just a description (as the text= clearly is), and not a technical specification, then why it is not Informa= tional? =C2=A0


I can see how we coul= d call it an Applicability Statement (rfc2026) and still publish it in the = Standards Track.=C2=A0 If we want to go that way, we would need some minor = updates to=C2=A0make it clear that this is an Applicability Statement and i= s not intended to stand in for a Technical Specification.=C2=A0 I am not cl= ear on the process as it related to possible DownRefs (see below), but I=E2= =80=99m willing to Last Call an Applicability Statement in the Standards Tr= ack=E2=80=A6if that is what you want.



Thanks!<= /font>


Alvaro.

=C2=A0


[1] https://mailarchive.ietf.org/arch/msg/nvo3/cd= 0hOfb966ROcL4t8JCrBD28bBg/?qid=3Dc9f632dc5d6aab5e4b22972bb242baf0




Major:


M1. Section=C2=A05.1.2.1 (Auto Derivat= ion of RT) shows a=C2=A0=E2=80=9Cpacket format=E2=80=9D to illustrate how t= he RT can be auto-derived.=C2=A0 Without any context, the description=C2=A0= doesn=E2=80=99t make much sense: the fields are not described in order, the= reader is expected to know about global and local=C2=A0administrative fiel= ds, the=C2=A0=E2=80=9CA-bit=E2=80=9D (or the Type field) are not mentioned = in the description, people could probably guess that=C2=A0=E2=80=9CD-ID=E2= =80=9D means=C2=A0=E2=80=9Cdomain-id=E2=80=9D, there=E2=80=99s no indicatio= n of what to do with that=C2=A0=E2=80=9Cpacket format=E2=80=9D, etc.=C2=A0 = Please clean the description up, include clearer explanations and some refe= rences can=E2=80=99t hurt.


M1.2. Wha= t about 4-byte ASNs?



=

M2. From=C2=A05.1.3 (Constructing EVPN BGP Routes):=C2=A0=E2=80=9C..= .routes MAY be advertised=C2=A0with multiple encapsulation types as long as they use the same EVPN=C2=A0<= /span>multi-homing procedures (section 8.3.1, Spli= t Horizon)=E2=80=A6=E2=80=9D. Is Split Horizon an example, or the only mult= i-homing procedure that should be considered?=C2=A0 Please be clear.=



M3. From=C2=A05.2 (MPLS over GRE):

=

M3.1. =E2=80=9C...when it is used in=C2=A0conjunction with EVPN the GRE key field S= HOULD be present, and SHOULD=C2=A0be used t= o provide a 32-bit entropy field.=E2=80=9D =C2=A0What are the cases when it= is ok not to include the field, or use it for that purpose?=C2=A0 IOW, why= are these SHOULDs not MUSTs?=C2=A0 Or maybe, when is the key field needed?=


M3.2. "The Checksum and Sequen= ce=C2=A0Number fields are not = needed and their corresponding C and S bits=C2=A0MUST be set to zero.=E2=80=9D =C2=A0This is different than what rfc40= 23 specifies (not a problem).=C2=A0 If you=E2=80=99re specifying the settin= g of the bits, then you should be more prescriptive with whether the fields= are included of not; suggestion: "The Checksum and Sequence Number fi= elds MUST NOT be=C2=A0included=C2=A0and the corresponding C and S bits in t= he GRE Packet Header MUST be set to zero.=E2=80=9D



M4. In=C2=A07.1 (Impact on EVPN BGP Ro= utes & Attributes for VXLAN/NVGRE Encapsulation)


<= /font>

M4.1. These 2 MUSTs seem out of place as they are used to = explain, and not in a Normative way:=C2=A0=E2=80=9C ..the RD must be a uniq= ue value per EVI or per NVE as=C2=A0described in [RFC7432]. In other words, whenever there is more than= =C2=A0one administrative domai= n for global VNI, then a unique RD MUST be=C2=A0used, or whenever the VNI value have local significance, = then a=C2=A0unique RD MUST be used.=E2=80= =9D =C2=A0s/MUST/must


M4.2. This SHO= ULD is also out of place because the standardization was already done in rf= c7432 (this document is just=C2=A0mentioning it):=C2=A0=E2=80=9C...as noted= in section 8.6 of [RFC7432]...the single-homing ingress=C2=A0NVE SHOULD = be able to=E2=80=A6=E2=80=9D. s/SHOULD/should


<= /p>

M4.3. Section 10.2.1 then points back at the text in 7.1 using an= other SHOULD=E2=80=A6again, s/SHOULD/should



M= 5. 7.2 (Impact on EVPN Procedures for VXLAN/NVGRE Encapsulation) also inclu= des a superfluous SHOULD:=C2=A0=E2=80=9C...as noted in section 8.6 of [RFC7= 432]...a single-homing ingress= =C2=A0NVE SHOULD implement=E2=80=A6=E2=80= =9D. =C2=A0s/SHOULD/should



M6. The introductory paragraph in Section=C2=A08.1 (EVPN Mul= ti-Homing Features) says that it is used to "recap the multi-homing fe= atures of EVPN to=C2=A0highlig= ht the encapsulation dependencies. The section only describes=C2=A0<= span style=3D"font-family:Helvetica">the features and functions at a high-l= evel. For more details, the=C2=A0reader is = to refer to [RFC7432].=E2=80=9D =C2=A0However some of the 8.1.* sub-section= s contain Normative language.=C2=A0 Is that Normative language specifying n= ew behavior introduced in this document, or highlighting the recap from rfc= 7432?=C2=A0 If there=E2=80=99s no new=C2=A0behavior, then please use lower = cases.=C2=A0 If there is new behavior, then it would be nice to clarify tha= t in 8.1.



M7. = In=C2=A08.3.1 (Split Horizon), this MUST is out of place because it is not = specifying anything:=C2=A0=E2=80=9C...other means of performing the split-h= orizon filtering function=C2=A0MUST be devised.=E2=80=9D s/MUST/must



= M8.=C2=A0References

=

M8.1. TUNNEL-ENCAP (aka=C2=A0draft-ietf-idr-tunnel-en= caps) should be Normative, which btw is marked to Obsolete rfc5512; I menti= on=C2=A0this because both are listed in several parts, so you should take r= fc5512 out.


M8.2. These should also = be Normative:=C2=A0RFC734= 8, NVGRE,=C2=A0VXLAN-GPE,=C2=A0RFC4023

=



Minor:


P1. Please use the new Normative Language boil= erplate (rfc8174).



P2. From=C2=A07.= 1 (Impact on EVPN BGP Routes & Attributes for VXLAN/NVGRE Encapsulation= ): =E2=80=9C...reduces the required routes and attributes to the following = subset of four out of eight=E2=80=9D.=C2=A0 Please either list the attribut= es that are not needed, or put in a reference to where those can be found. = (rfc7432 ??)


P3. From=C2=A08.3.1 (S= plit Horizon): "In order to prevent unhealthy interactions=E2=80=A6=E2= =80=9D. I would really like to see more here: what does =E2=80=9Cunhealthy = interactions=E2=80=9D mean?=C2=A0 Can it result in loops or lost traffic or= some other =E2=80=9Cbad=E2=80=9D thing? =C2=A0 I note that even through yo= u =E2=80=9Cprohibit=E2=80=9D the configuration, you don=E2=80=99t go as far= as mandating that it not to be used (MUST NOT), which makes me want to und= erstand more the potential effects=E2=80=A6if it happens, what are the risk= s?



P4. In=C2=A08.3.3 (Unknown Unica= st Traffic Designation): =E2=80=9C...the ingress PE MAY use a flag-bit in t= he VxLAN header to indicate BUM traffic type. Bit 6 of flag field in the Vx= LAN header is used for this purpose per section 3.1 of [VXLAN-GPE].=E2=80= =9D =C2=A0Suggestion: =E2=80=9C=E2=80=A6the ingress PE MAY set the=C2=A0BUM= Traffic Bit (B bit) [VXLAN-GPE] to indicate BUM traffic.=E2=80=9D



P5. Security Considerations: =C2=A0I find t= hat the suggestion of IPSec may be out of place in this document; this docu= ment pretty much just talks about how to use EVPN, it doesn=E2=80=99t reall= y introduce new capabilities, so unless IPSec is mentioned in rfc7432 (whic= h is not =E2=80=94 and not even mentioned in this section), or recommended = in rfc4271 (which is not) then I would refrain from including such recommen= dation here.=C2=A0 In fact, I think that pointing at the Security Considera= tions of existing RFCs should be enough.


P5.1. The reference to rfc4301 (beyond what VXLAN/NVGRE) me= ntion seems like you=E2=80=99re trying too hard.=C2=A0 I would just put exp= licit references to the encapsulations since they should be dealing with se= curity themselves.



P6. References: = [KEYWORDS] shows up twice.=C2=A0 I think that the reference to rfc4271 can = be made Informative.



=



Nits:


N1. Sec= tion 3 (Terminology)=C2=A0literally=C2=A0transcribes several definitions fr= om=C2=A0rfc7432/rfc7365=C2=A0=E2=80=94 while it is ok, I personally prefer = just pointing at the definitions: it=E2=80=99s just easier to have the othe= r RFCs be the authoritative source and not rely on maintaining the definiti= ons in sync should they ever change.=C2=A0 Suggestion:=C2=A0=E2=80=9CThe re= ader is expected to be familiar with the terminology in=C2=A0=E2=80=A6=E2= =80=9D.

=

N2. s/the VNI value have local significance/the VNI value ha= s local significance

=C2=A0

N3. s<= span style=3D"font-family:Helvetica">/it is recommend/it is recommended


N4. 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<20171124152148.GB21793@faui40p.informatik.uni-erlangen.de> From: Stig Venaas Date: Mon, 4 Dec 2017 14:17:42 -0800 Message-ID: To: Toerless Eckert Cc: "Jeffrey (Zhaohui) Zhang" , MBONED WG , Toerless Eckert , Lenny Giuliano , "bess@ietf.org" Content-Type: text/plain; charset="UTF-8" Archived-At: Subject: Re: [bess] bess: draft-zzhang-bess-mvpn-msdp-sa-interoperation X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Dec 2017 22:17:48 -0000 Hi On Fri, Nov 24, 2017 at 7:21 AM, Toerless Eckert wrote: > On Fri, Nov 24, 2017 at 02:26:39PM +0000, Jeffrey (Zhaohui) Zhang wrote: >> > a) I was asking Jeffrey in the WG meeting if he saw any difference >> > between MSDP and 4610 wrt. to the applicability of your draft, and >> > he also said no (as i think too), thats where this originated. >> >> On the spot I did make a mistake that I thought with 4610 the RPs would propagate registers (received from a C-RP) to another :-) Lenny caught that. Isn't that exactly what 4610 does though? Any register received by one RP in the anycast RP set, is replicated and sent to each of the other routers in the set. Stig > Ok. But the fact that it does not just means tht 4610 just acts like > an MSDP mesh group, and your draft is equally applicable to MSDP mesh > groups and therefore equally to 4610 (IMHO). > > In fact, as soon as you have a setup that is not equivalent to > a mesh group, considerations for MSDP become more difficult. > > [...] > >> > it would be great to give >> > examples of the so tht one can check if/how the proposed spec in your >> > draft would work in the fce of those cases existing MSDP RPF rules >> > (which can of course be quite complex). >> >> Yes more text would help. The idea is that MVPN SA messages would just be treated as MSDP SAs from the PE that originated the SAs. Those MSDP SAs received from true MSDP peers and those treated as MSDP SAs would follow the existing MSDP rules. > > Right. But the problem is when you have non-PE RPs running MSDP > without mesh group, so the MSDP connectivity is set up with the assumption > that some of the RPF rules apply to avid looping MSDP SAs. Now you introduce > an MVPN core represented in that MSDP SA RPF loop prevention, and > you need to look how that will work. > > I have not tried to imagine any such complex non-mesh-group seteup > because i have not see this in the real world. If you have, then it would > be great to explain that example in the draft. But if you have any > such example from the real world, i think we have a more fundamental > problem: > > If there are really future important non-mesh group MSDP + MVPN examples, > that can not be converted better to mesh groups, then we have the > fundamental problem that we have no solution (yet) how to solve > such setup requirements with IPv6. Because we don't have MSDP there. > And we established it can't be converted to mesh-group. Aka: can't > be replaced with 6410. > > So, i would suggest the draft distinguishes between mesh-group > and non-mesh-group MSDP setups. For the mesh-group setups, it should > be defined to work equally for MSDP and 6410. For the non-mesh group > setup we shuold vet whether that case is declared to be "non-relevant/ > non-supported" because we have no evidence of need in real-world... OR > we have to solve another IPv6 issue. > > Cheer > Toerless > >> > >> > 3) Btw: It would be good if you would add some picture to your draft >> > starting from section 2 to illustrate your text example PE1, PE2 >> > and so on. >> >> Sure. >> >> > >> > Also, your draft says: >> > >> > [RFC6514] only specifies that a PE receiving the MVPN SA routes, say >> > PE2, will advertise (C-S,C-G) C-multicast routes if it has >> > corresponding (C-*,C-G) state learnt from its CE >> > >> > can you point me to the text in 6514 that says that ? >> >> The full text is the following: >> >> 14.2. Receiver(s) within a Site >> >> ... >> >> When (as a result of receiving PIM messages from one of its CEs) a PE >> creates, in one of its MVPN-TIBs, a (new) (C-*,C-G) entry with a non- >> empty outgoing interface list that contains one or more PE-CE >> interfaces, the PE MUST check if it has any matching Source Active >> A-D routes. If there is one or more such matching routes, and the >> best path to C-S carried in the matching route(s) is reachable >> through some other PE, then for each such route the PE MUST originate >> a Source Tree Join C-multicast route. If there is one or more such >> matching routes, and the best path to C-S carried in the matching >> route(s) is reachable through a CE connected to the PE, then for each >> such route the PE MUST originate a PIM Join (C-S,C-G) towards the CE. >> >> When, as a result of receiving a new Source Active A-D route, a PE >> updates its VRF with the route, the PE MUST check if the newly >> received route matches any (C-*,C-G) entries. If there is a matching >> entry, and the best path to C-S carried in the (A-D) route is >> reachable through some other PE, the PE MUST originate a Source Tree >> Join C-multicast route for the (C-S,C-G) carried by the route. If >> there is a matching entry, and the best path to C-S carried in the >> (A-D) route is reachable through a CE connected to the PE, the PE >> MUST originate a PIM Join (C-S,C-G) towards the CE. >> >> Jeffrey >> >> > >> > Cheers >> > Toerless >> > >> > On Wed, Nov 22, 2017 at 02:38:09PM -0800, Leonard Giuliano wrote: >> > > Toerless, >> > > >> > > Thanks for the comments. After thinking about your feedback on RFC4610 a >> > > bit, I'm not sure that case is applicable here. Consider the 2 directions >> > > of interworking: >> > > >> > > 1) MSDP SA/AnycastRP_PIM_Register -> MVPN SA >> > > >> > > 2) MVPN SA -> MSDP SA/AnycastRP_PIM_Register >> > > >> > > As I understand, #1 is already covered by RFC6513/6514. #2 is the missing >> > > piece that this draft attempts to address. I don't believe #2 will be >> > > applicable for RFC4610, as these registers only go to members of the RP >> > > set. And the RP set should be configured on all the C-RPs. It wouldn't >> > > make much sense to have these registers transit the MVPN domain to go to >> > > an AnycastRP not in the configured RP set. >> > > >> > > Hope this is clear, and let me know if I'm missing anything. >> > > >> > > -Lenny >> > > >> > > | -----Original Message----- >> > > | From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Toerless Eckert >> > > | Sent: Monday, November 13, 2017 9:43 PM >> > > | To: bess@ietf.org >> > > | Cc: mboned@ietf.org >> > > | Subject: [bess] bess: draft-zzhang-bess-mvpn-msdp-sa-interoperation >> > > | >> > > | Jeffrey presented subject draft in mboned. Given how i am >> > > | not usually tracking BESS WG mailing list and may not be around: >> > > | >> > > | I would like to see subject draft to be adopted as a WG document in BESS >> > > | and become an update to RFC6514 (not to say bugfix ;-). >> > > | >> > > | Feeedback detail: The draft should be amended to fix the same problem >> > not only for >> > > | MSDP SA but also RFC4610 and probably accordingly change the draft >> > name. >> > > | >> > > | Cross-posted to mboned (sorry) because there where a couple of MBoned >> > > | participants expressing support for the draft in BESS and may like me not >> > > | be BESS regulars. >> > > | >> > > | Cheers >> > > | Toerless >> > >> > -- >> > --- >> > tte@cs.fau.de >> > >> > _______________________________________________ >> > BESS mailing list >> > BESS@ietf.org >> > https://urldefense.proofpoint.com/v2/url?u=https- >> > 3A__www.ietf.org_mailman_listinfo_bess&d=DwICAg&c=HAkYuh63rsuhr6Scbf >> > h0UjBXeMK- >> > ndb3voDTXcWzoCI&r=f7wsLGcfzAWDNS6XNTBZwj_OLAOsZZqdrR2IDAzeZqE& >> > m=hQz-NA6r7ahWKqMy6aI7ZXX5lvGX1ubRovr3Co5_VNE&s=rC5k8JOSHYD- >> > XaNaPGxhtl-yyDQhzqd909XjwXnS5EI&e= > > -- > --- > tte@cs.fau.de > > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess From nobody Tue Dec 5 01:03:56 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9D18D1271FD for ; 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a=rsa-sha256; c=relaxed/relaxed; d=nokia.onmicrosoft.com; s=selector1-nokia-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=RYXy7UJdfhEC7H95VgGATYqZRxP4qlWMSgGnyepcwQg=; b=Aj8Ds4BGGN4j3smv+rVq2PTwm+ROMcd5hYzcpFdrtxJSUnriZyIpqFiVKmHGfeeMLb4avufid33vliCk8qx+C0yyuwlE/KigdUik6SqVv2tN+yEk7AFICnfeHlzvYud0wSCMIj4aFnkZFZORZabmdt4Em4Zu5mHKwW52bFcsMLg= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=martin.vigoureux@nokia.com; Received: from [192.168.1.5] (92.169.252.156) by DB6PR0701MB2134.eurprd07.prod.outlook.com (2603:10a6:4:50::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.302.2; Tue, 5 Dec 2017 09:03:33 +0000 To: bess@ietf.org References: <20181_1512146931_5A2187F3_20181_172_1_1512146931.4117.139.camel@orange.com> From: Martin Vigoureux Message-ID: <73458a60-df4e-70ff-03b7-f998837981fa@nokia.com> Date: Tue, 5 Dec 2017 10:03:25 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: <20181_1512146931_5A2187F3_20181_172_1_1512146931.4117.139.camel@orange.com> Content-Type: text/plain; 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Thanks for that. Thanks for your dedication and I wish you all the best. Stphane, welcome! -m Le 01/12/2017 17:48, thomas.morin@orange.com a crit : > Alvaro Retana, 2017-12-01 11:16: >> I am sad to report that Thomas Morin has decided not to continue as >> bess Co-Chair due to the demands of his job. Thomas: thank you for >> all the effort you have put into the WG, we all look forward to your >> continued contributions to the IETF! > > Thank you Alvaro. > > It has been an honor and a pleasure for me to co-chair l3vpn & bess, > trying to accompany the working group contributions and maybe > contribute a bit to driving it into useful directions. The great > experience of co-chairing with Martin was unarguably a plus in this > journey. > >> In consultation with Martin and the other ADs, we have asked >> Stephane Litkowski to take on the role of bess Co-Chair. [...] >> Welcome Stephane! > > Welcome Stephane! :) > Be aware that co-chairing bess comes with the risk of being possibly > misrepresented [1]. > > And to all, many thanks for being great BESS contributors ; don't > celebrate too fast though: I'll still possibly be around lurking for > that little-thing-in-this-obscure-extended-community or the other thing > on which there can be something to nitpick about ! ;) > > Bess regards, > > -Thomas > > [1] https://twitter.com/LlanOldDog/status/643796807852630016 > > _________________________________________________________________________________________________________________________ > > 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. 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Please see in-line regarding the two first points. -m Le 04/12/2017 à 22:49, Alvaro Retana a écrit : > Dear Authors: > > I just finished reading this document (finally!). I have a some > comments (see below) which I think should be easy to address. > > I also have some bigger issues that we’ll need the Chairs’ help to solve: > > (1) Coordination with nv03 > > For the Chairs: Except for some clarification comments [1] related to > the current version, I see no other traffic in the nvo3 list related to > this document. Was there some other coordination that I’m missing? I > am not questioning having this document in bess (that’s perfectly fine); > I’m just raising the needed coordination with other WGs, from the > Charter: "The working group will also coordinate with...NVO3 working > group for coordination of protocols to support data center VPNs.” > > > What about Geneve (draft-ietf-nvo3-geneve)? The nvo3 WG is focusing on > Geneve as the Standard encapsulation, but this document doesn’t > even mention it. Indeed. But The decision by NVO3 to work on Geneve is fairly recent. I have indicated in the BESS report that we'll likely be working closeer with NVO3 from now on. An individual draft on the applicability of EVPN to NVO3 networks is targeting NVO3 WG. Conversely, an individual draft on EVPN extensions for Geneve is targeting BESS. We have agreed that we'll do cross reviews at the important milestones of these docs. > (2) Document Status > > > Why is this a Standards Track document? The Abstract/Introduction say > that “this document describes how Ethernet VPN (EVPN) can be used as an > NVO solution and explores applicability of EVPN functions and > procedures.” -- if it’s just a description (as the text clearly is), > and not a technical specification, then why it is not Informational? > I can see how we could call it an Applicability Statement (rfc2026) and > still publish it in the Standards Track. If we want to go that way, we > would need some minor updates to make it clear that this is an > Applicability Statement and is not intended to stand in for a Technical > Specification. I am not clear on the process as it related to possible > DownRefs (see below), but I’m willing to Last Call an Applicability > Statement in the Standards Track…if that is what you want. Maybe the authors should s/describes/specifies/ to better reflect the content of the document. On the other hand, rfc2026 says "A Technical Specification is any description of a protocol, service, procedure, convention, or format." It seems to match as well. > > > > Thanks! > > > Alvaro. > > > > > [1] > https://mailarchive.ietf.org/arch/msg/nvo3/cd0hOfb966ROcL4t8JCrBD28bBg/?qid=c9f632dc5d6aab5e4b22972bb242baf0 > > > > > Major: > > > M1. Section 5.1.2.1 (Auto Derivation of RT) shows a “packet format” to > illustrate how the RT can be auto-derived. Without any context, the > description doesn’t make much sense: the fields are not described in > order, the reader is expected to know about global and > local administrative fields, the “A-bit” (or the Type field) are not > mentioned in the description, people could probably guess that “D-ID” > means “domain-id”, there’s no indication of what to do with that “packet > format”, etc. Please clean the description up, include clearer > explanations and some references can’t hurt. > > > M1.2. What about 4-byte ASNs? > > > > M2. From 5.1.3 (Constructing EVPN BGP Routes): “...routes MAY be > advertised with multiple encapsulation types as long as they use the > same EVPN multi-homing procedures (section 8.3.1, Split Horizon)…”. Is > Split Horizon an example, or the only multi-homing procedure that should > be considered? Please be clear. > > > > M3. From 5.2 (MPLS over GRE): > > > M3.1. “...when it is used in conjunction with EVPN the GRE key field > SHOULD be present, and SHOULD be used to provide a 32-bit entropy > field.” What are the cases when it is ok not to include the field, or > use it for that purpose? IOW, why are these SHOULDs not MUSTs? Or > maybe, when is the key field needed? > > > M3.2. "The Checksum and Sequence Number fields are not needed and their > corresponding C and S bits MUST be set to zero.” This is different than > what rfc4023 specifies (not a problem). If you’re specifying the > setting of the bits, then you should be more prescriptive with whether > the fields are included of not; suggestion: "The Checksum and Sequence > Number fields MUST NOT be included and the corresponding C and S bits in > the GRE Packet Header MUST be set to zero.” > > > > M4. In 7.1 (Impact on EVPN BGP Routes & Attributes for VXLAN/NVGRE > Encapsulation) > > > M4.1. These 2 MUSTs seem out of place as they are used to explain, and > not in a Normative way: “ ..the RD must be a unique value per EVI or per > NVE as described in [RFC7432]. In other words, whenever there is more > than one administrative domain for global VNI, then a unique RD MUST > be used, or whenever the VNI value have local significance, then > a unique RD MUST be used.” s/MUST/must > > > M4.2. This SHOULD is also out of place because the standardization was > already done in rfc7432 (this document is just mentioning it): “...as > noted in section 8.6 of [RFC7432]...the single-homing ingress NVE SHOULD > be able to…”. s/SHOULD/should > > > M4.3. Section 10.2.1 then points back at the text in 7.1 using another > SHOULD…again, s/SHOULD/should > > > > M5. 7.2 (Impact on EVPN Procedures for VXLAN/NVGRE Encapsulation) also > includes a superfluous SHOULD: “...as noted in section 8.6 of > [RFC7432]...a single-homing ingress NVE SHOULD implement…”. s/SHOULD/should > > > > M6. The introductory paragraph in Section 8.1 (EVPN Multi-Homing > Features) says that it is used to "recap the multi-homing features of > EVPN to highlight the encapsulation dependencies. The section only > describes the features and functions at a high-level. For more details, > the reader is to refer to [RFC7432].” However some of the 8.1.* > sub-sections contain Normative language. Is that Normative language > specifying new behavior introduced in this document, or highlighting the > recap from rfc7432? If there’s no new behavior, then please use lower > cases. If there is new behavior, then it would be nice to clarify that > in 8.1. > > > > M7. In 8.3.1 (Split Horizon), this MUST is out of place because it is > not specifying anything: “...other means of performing the split-horizon > filtering function MUST be devised.” s/MUST/must > > > > M8. References > > > M8.1. TUNNEL-ENCAP (aka draft-ietf-idr-tunnel-encaps) should be > Normative, which btw is marked to Obsolete rfc5512; I mention this > because both are listed in several parts, so you should take rfc5512 out. > > > M8.2. These should also be Normative: RFC7348, NVGRE, VXLAN-GPE, RFC4023 > > > > > Minor: > > > P1. Please use the new Normative Language boilerplate (rfc8174). > > > > P2. From 7.1 (Impact on EVPN BGP Routes & Attributes for VXLAN/NVGRE > Encapsulation): “...reduces the required routes and attributes to the > following subset of four out of eight”. Please either list the > attributes that are not needed, or put in a reference to where those can > be found. (rfc7432 ??) > > > > P3. From 8.3.1 (Split Horizon): "In order to prevent unhealthy > interactions…”. I would really like to see more here: what does > “unhealthy interactions” mean? Can it result in loops or lost traffic > or some other “bad” thing? I note that even through you “prohibit” the > configuration, you don’t go as far as mandating that it not to be used > (MUST NOT), which makes me want to understand more the potential > effects…if it happens, what are the risks? > > > > P4. In 8.3.3 (Unknown Unicast Traffic Designation): “...the ingress PE > MAY use a flag-bit in the VxLAN header to indicate BUM traffic type. Bit > 6 of flag field in the VxLAN header is used for this purpose per section > 3.1 of [VXLAN-GPE].” Suggestion: “…the ingress PE MAY set the BUM > Traffic Bit (B bit) [VXLAN-GPE] to indicate BUM traffic.” > > > > P5. Security Considerations: I find that the suggestion of IPSec may be > out of place in this document; this document pretty much just talks > about how to use EVPN, it doesn’t really introduce new capabilities, so > unless IPSec is mentioned in rfc7432 (which is not — and not even > mentioned in this section), or recommended in rfc4271 (which is not) > then I would refrain from including such recommendation here. In fact, > I think that pointing at the Security Considerations of existing RFCs > should be enough. > > > P5.1. The reference to rfc4301 (beyond what VXLAN/NVGRE) mention seems > like you’re trying too hard. I would just put explicit references to > the encapsulations since they should be dealing with security themselves. > > > > P6. References: [KEYWORDS] shows up twice. I think that the reference > to rfc4271 can be made Informative. > > > > > > Nits: > > > N1. Section 3 (Terminology) literally transcribes several definitions > from rfc7432/rfc7365 — while it is ok, I personally prefer just pointing > at the definitions: it’s just easier to have the other RFCs be the > authoritative source and not rely on maintaining the definitions in sync > should they ever change. Suggestion: “The reader is expected to be > familiar with the terminology in …”. > > > N2. s/the VNI value have local significance/the VNI value has local > significance > > > > N3. s/it is recommend/it is recommended > > > N4. Please be consistent in naming references, some list the RFC number, > while others a name... > From nobody Tue Dec 5 06:25:49 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 00A9C1294E9; Tue, 5 Dec 2017 06:25:45 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.618 X-Spam-Level: X-Spam-Status: No, score=-2.618 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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 cBK2mHwc87yT; Tue, 5 Dec 2017 06:25:43 -0800 (PST) Received: from orange.com (mta241.mail.business.static.orange.com [80.12.66.41]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 2F59C1294B2; Tue, 5 Dec 2017 06:25:42 -0800 (PST) Received: from opfedar07.francetelecom.fr (unknown [xx.xx.xx.9]) by opfedar23.francetelecom.fr (ESMTP service) with ESMTP id CFF6416025A; Tue, 5 Dec 2017 15:25:40 +0100 (CET) Received: from Exchangemail-eme2.itn.ftgroup (unknown [xx.xx.31.27]) by opfedar07.francetelecom.fr (ESMTP service) with ESMTP id 9942FC0052; Tue, 5 Dec 2017 15:25:40 +0100 (CET) Received: from l-fipglop (10.168.234.2) by OPEXCLILM7C.corporate.adroot.infra.ftgroup (10.114.31.27) with Microsoft SMTP Server id 14.3.361.1; Tue, 5 Dec 2017 15:25:40 +0100 Message-ID: <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> From: To: Martin Vigoureux , Alvaro Retana , CC: Date: Tue, 5 Dec 2017 15:25:39 +0100 In-Reply-To: <3ca43a6b-2716-ff87-76da-ab520f23c6b4@nokia.com> References: <3ca43a6b-2716-ff87-76da-ab520f23c6b4@nokia.com> Organization: Orange S.A. Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.2-1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Originating-IP: [10.168.234.2] Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Dec 2017 14:25:45 -0000 All, Martin Vigoureux, 2017-12-05 11:34: > > Alvaro: [...] > > > > What about Geneve (draft-ietf-nvo3-geneve)? The nvo3 WG is > > focusing on > > Geneve as the Standard encapsulation, but this document doesn’t > > even mention it. > > Indeed. But The decision by NVO3 to work on Geneve is fairly recent. > I have indicated in the BESS report that we'll likely be working > closeer > with NVO3 from now on. An individual draft on the applicability of > EVPN > to NVO3 networks is targeting NVO3 WG. Conversely, an individual > draft > on EVPN extensions for Geneve is targeting BESS. We have agreed that > we'll do cross reviews at the important milestones of these docs. Perhaps draft-ietf-bess-evpn-overlay could hint on such a Geneve work for EVPN; something like: "Adapting the EVPN control plane to the Geneve encapsulation is out of the scope of this document, and is expected to be covered in a separate document based on the same architectural principles" > > > (2) Document Status > > > > > > Why is this a Standards Track document? The Abstract/Introduction > > say > > that “this document describes how Ethernet VPN (EVPN) can be used > > as an > > NVO solution and explores applicability of EVPN functions and > > procedures.” -- if it’s just a description (as the text clearly > > is), > > and not a technical specification, then why it is not > > Informational? > > I can see how we could call it an Applicability Statement (rfc2026) > > and > > still publish it in the Standards Track. If we want to go that > > way, we > > would need some minor updates to make it clear that this is an > > Applicability Statement and is not intended to stand in for a > > Technical > > Specification. I am not clear on the process as it related to > > possible > > DownRefs (see below), but I’m willing to Last Call an Applicability > > Statement in the Standards Track…if that is what you want. > > Maybe the authors should s/describes/specifies/ to better reflect > the > content of the document. > On the other hand, rfc2026 says "A Technical Specification is any > description of a protocol, service, procedure, convention, or > format." > It seems to match as well. I agree that "specifies" is a better wording for the content of this document which does specify detailed procedures combining existing mechanisms. It certainly needs to be Standard Track. (more comments/answers below) > > > > M2. From 5.1.3 (Constructing EVPN BGP Routes): as long as they use > > the > > same EVPN multi-homing procedures (section 8.3.1, Split Horizon)…”. > > Is > > Split Horizon an example, or the only multi-homing procedure that > > should > > be considered? Please be clear. (Related to this sentence, but not related to your question:) I recently realized that I'm unclear on this point: the way the MPLS label fields are decoded is not the same for a VXLAN or NVGRE encap (where the whole 3 bytes are used) than for an MPLS encap (where only the topmost 20 bits of the 3 bytes are used). This means that, although the encoding is unambiguous when one encap is used (or when VXLAN and NVGRE would be used at the same time), it becomes ambiguous when a mix is used, for instance MPLS and VXLAN, unless the dataplane MPLS label to use is equal to the VNI after a 4-bit left shifting. If I'm not wrong "...routes MAY be advertised with multiple encapsulation types" needs to be restricted to the cases that work. [...] > > > > M8. References > > > > > > M8.1. TUNNEL-ENCAP (aka ) should be > > Normative, which btw is marked to Obsolete rfc5512; I mention this > > because both are listed in several parts, so you should take > > rfc5512 out. This was debated on a while ago, and this is somehow the conclusion of the discussion: https://mailarchive.ietf.org/arch/msg/bess/z1J2VD9rtCQC7NHnmi_4tz_bR_w Copy-paste: ---- We'll also add idr-tunnel-encaps a Informative reference. With respect to Tunnel Encap Extended Community (which is the only part of idr-tunnel-encap used by evpn-overlay draft), idr-tunel-encap draft itself references RFC 5512. During the course of WG LC and RFC editorship of evpn-overlay draft, if we see that idr-tunnel-encap is progressing fast, then we can drop the reference to RFC 5512 and make the reference to idr-tunnel-encap Normative. Otherwise, we'll keep both references with RFC 5512 as Normative and idr-tunnel-encap as Informative. ---- The question probably is whether or not idr-tunnel-encap progress is sufficient. > > > > > > M8.2. These should also be Normative: RFC7348, NVGRE, VXLAN-GPE, > > RFC4023 > > My process fu is weakening, but if this specification is standard track (and I believe it should be), I believe it can't normatively depend on Informative specs and some of the above are in this category. -Thomas (as document shep) _________________________________________________________________________________________________________________________ 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. 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From nobody Tue Dec 5 14:09:00 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 66932128954; Tue, 5 Dec 2017 14:08:59 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.997 X-Spam-Level: X-Spam-Status: No, score=-0.997 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, FREEMAIL_REPLY=1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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=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 B3AJbfOdsyhf; Tue, 5 Dec 2017 14:08:58 -0800 (PST) Received: from mail-ot0-x244.google.com (mail-ot0-x244.google.com [IPv6:2607:f8b0:4003:c0f::244]) (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 D6A55126B6D; Tue, 5 Dec 2017 14:08:57 -0800 (PST) Received: by mail-ot0-x244.google.com with SMTP id v21so1676000oth.6; Tue, 05 Dec 2017 14:08:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:in-reply-to:references:mime-version:date:message-id:subject:to :cc; bh=H/4qidX/1vYoZsk8fjeUWzvj/c5CnEQwUCWdwH8c2mA=; b=k8hfhurso8rIQ/X+vz9bW410k6+qwy5zwpFaC5V2Wa4L0v/V8Rq3SopLRpVfy3C7Md qxZSLNQlhvQY3k6j2D9KemhYmYU1osfy80g07im9ZmozxATERhxp8lYwxqb5JL7WBCLU k3asvIlD7UjCw1XF2Dlyid0DFbNRJZnOAanauZyj82J5572UJYlZLVXTdZYMzQ0WFSDN 2247vS16FkEboqLySPQBPi3UFqK/pyybrPnh31ijEGqpqlAKKrosqLV0g7nxD6MNJVOf 0c8zTyUPdWJVwgRz2SXMt8yM3vyTGv/fcZ176IhEoiv/PkIinjkxz2ZJP/9SAhF4mgSQ kqug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:in-reply-to:references:mime-version:date :message-id:subject:to:cc; bh=H/4qidX/1vYoZsk8fjeUWzvj/c5CnEQwUCWdwH8c2mA=; b=kswjWDWjKATIF9KWfUxnfA2ohqjqmhVRvm1bvODUTyPNjmTNV/N+Y1E+4AD4Mhy7L3 CE4nJ7rllpM9QvIAJwMX+imPiJKjA2EVtmj8YDSD+yeTtDoMS8OfNrR19e2ekXB9ViJd oceqvi9F3qSXzIBUXOtPoe/6gALr2PU4gnw7U45wZfzWEv+bWB/6kUtC0gv9ITaY83uk 0YIH/peMn9oaS+1ohhWK3JIy5aYSf+OFOrdoGT4KQDHeqnUIxCrwGxiPiwhwNId/b70r kgI1ty4yU50rws3yAs735tkxbXm6m8QsAwK10QhqB2fNlWIUvwcbCofGgSTzHbLEhI0c lC9w== X-Gm-Message-State: AJaThX5zx0ZK0Pt6onTSq7rBLoXv0X20lD27V6llpt7RfR8Dz9AY4cbI bHryfu1VJDc/GfFTh1hcIbzBfVOXaLqqzmm1z0Y= X-Google-Smtp-Source: AGs4zMbreoi2hGXwAUriON9pTrzKv6i326PM3DhY9gkHARktfV+AXnBi/vpyE5cVDnHpUkP7CXOFDci0E0h9k9KmwB0= X-Received: by 10.157.56.200 with SMTP id k8mr19188587ote.3.1512511737316; Tue, 05 Dec 2017 14:08:57 -0800 (PST) Received: from 895490483151 named unknown by gmailapi.google.com with HTTPREST; Tue, 5 Dec 2017 14:08:56 -0800 From: Alvaro Retana In-Reply-To: <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> References: <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> X-Mailer: Airmail iOS (331) MIME-Version: 1.0 Date: Tue, 5 Dec 2017 14:08:56 -0800 Message-ID: To: Martin Vigoureux , bess-chairs@ietf.org, thomas.morin@orange.com Cc: bess@ietf.org Content-Type: multipart/alternative; boundary="001a11c01f18d24988055f9f1489" Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Dec 2017 22:08:59 -0000 --001a11c01f18d24988055f9f1489 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On December 5, 2017 at 9:25:39 AM, thomas.morin@orange.com ( thomas.morin@orange.com) wrote: > All, > > Martin Vigoureux, 2017-12-05 11:34: > > > Alvaro: [...] > > > What about Geneve (draft-ietf-nvo3-geneve)? The nvo3 WG is > focusing on > Geneve as the Standard encapsulation, but this document doesn=E2=80=99t > even mention it. > > > Indeed. But The decision by NVO3 to work on Geneve is fairly recent. > I have indicated in the BESS report that we'll likely be working > closeer > with NVO3 from now on. An individual draft on the applicability of > EVPN > to NVO3 networks is targeting NVO3 WG. Conversely, an individual > draft > on EVPN extensions for Geneve is targeting BESS. We have agreed that > we'll do cross reviews at the important milestones of these docs. > > > Perhaps draft-ietf-bess-evpn-overlay could hint on such a Geneve > work for EVPN; something like: "Adapting the EVPN control plane to the > Geneve encapsulation is out of the scope of this document, and is > expected to be covered in a separate document based on the same > architectural principles" > Perfect, thanks! Is that draft already in the works, or just planned? Alvaro. --001a11c01f18d24988055f9f1489 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

On D= ecember 5, 2017 at 9:25:39 AM, t= homas.morin@orange.com (thom= as.morin@orange.com) wrote:

All,

Martin Vigoureux, 2017-12-05 11:34:

Alvaro: [...]

What about Geneve (draft-ietf-nvo3-geneve)? The nvo3 WG is
focusing on
Geneve as the Standard encapsulation, but this document doesn=E2=80=99t
even mention it.

Indeed. But The decision by NVO3 to work on Geneve is fairly recent.
I have indicated in the BESS report that we'll likely be working
closeer =20
with NVO3 from now on. An individual draft on the applicability of
EVPN =20
to NVO3 networks is targeting NVO3 WG. Conversely, an individual
draft =20
on EVPN extensions for Geneve is targeting BESS. We have agreed that = =20
we'll do cross reviews at the important milestones of these docs.

Perhaps draft-ietf-bess-evpn-overlay could hint on such a Geneve
work for EVPN; something like: "Adapting the EVPN control plane to= the
Geneve encapsulation is out of the scope of this document, and is
expected to be covered in a separate document based on the same
architectural principles"

Perfe= ct, thanks!

Is that draft already in the works, or just planned?

<= p>Alvaro.

--001a11c01f18d24988055f9f1489-- From nobody Tue Dec 5 14:11:56 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B4A4D126B6D; Tue, 5 Dec 2017 14:11:54 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.997 X-Spam-Level: X-Spam-Status: No, score=-0.997 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, FREEMAIL_REPLY=1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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=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 A8l2z7K2a75Q; Tue, 5 Dec 2017 14:11:53 -0800 (PST) Received: from mail-oi0-x244.google.com (mail-oi0-x244.google.com [IPv6:2607:f8b0:4003:c06::244]) (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 56BDF124319; Tue, 5 Dec 2017 14:11:53 -0800 (PST) Received: by mail-oi0-x244.google.com with SMTP id w125so1291647oie.7; Tue, 05 Dec 2017 14:11:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:in-reply-to:references:mime-version:date:message-id:subject:to :cc; bh=VMIymbZF9VYQ685CmHvZmtvPJdpMNgcmdHrD+LyXSA0=; b=Tq2O9gYG1BxH/kAg0Ehmw6N9kQqXXr02KLP408EFWPBksOJTGtlzTCLApUKJY2eMBZ akWLsFpfOY6z+mojmq/pL/QJAwl7OhdZ5lra0PyP/HbWtnEpwk6QiTGulmXf3SuX7tUA ytfBQGGnGQ+V2zNwYB71sVT9ZnPCGJHNC+0OP7pVCAGtYXlhtWyxLaAG8B6MY0DezTs8 Qw2JJnz3ZWmNlpLKJOtotfm4vpvYS860TmHw+KnwJ53QPCZkZVe3bOcdda8NbZU6FtSt f5m/1Dgn9R5uMSAgsf45vF2ma+aUwoSwdfF5/kuvYK95c5r+cdh6XJUTA/D22U+d72aV OZ3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:in-reply-to:references:mime-version:date :message-id:subject:to:cc; bh=VMIymbZF9VYQ685CmHvZmtvPJdpMNgcmdHrD+LyXSA0=; b=Gh60e32jW0xX/mQYkVDzQ1IcyXL3Q+mFhontM/ld3ksJBOhNRgTBt0HMThc2w63W13 vXJd58qa9oCMkC93t0EGSmtAt5VJfsHtT4hG6pG5xlerc+znxFCX98fm/6i65WKcp3Vo J6iQaZSfu1JYEtGWc+8SwCRVUJcARu+I1dOxsbhggoKryy/jZ6VEa8H+JiMwtbwB1P0r Y4xY9wcMtzCFWAAvmS08NyNn0aI1KcKGs8k244znpVfprWF4YUUNwhulldFb/oMti95c cx86aE7xNab2SsfEZ2WofjQxrP51Dh1x9g7oYHntms8/fYvlTZYPrpahdDpWwR9OG1Ng c/HQ== X-Gm-Message-State: AJaThX5HRhSWgKhBQYP0AvOfouoO22SovwsIGkVajDa9uWG27iUicsZL bAYpiv11gaTktqXU3/XbRZ9sE8hpCuVxb31jlMs= X-Google-Smtp-Source: AGs4zMZTqu8NP+rHRarJd4bstmLSGojV6DQ25pxWaQcEM9g2vq+flR0X8rEaIF9pidZ1ZS+W+DvuQ38XJit52bMMxT4= X-Received: by 10.202.218.68 with SMTP id r65mr18421674oig.308.1512511912718; Tue, 05 Dec 2017 14:11:52 -0800 (PST) Received: from 895490483151 named unknown by gmailapi.google.com with HTTPREST; Tue, 5 Dec 2017 14:11:52 -0800 From: Alvaro Retana In-Reply-To: <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> References: <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> X-Mailer: Airmail iOS (331) MIME-Version: 1.0 Date: Tue, 5 Dec 2017 14:11:52 -0800 Message-ID: To: Martin Vigoureux , bess-chairs@ietf.org, thomas.morin@orange.com Cc: bess@ietf.org Content-Type: multipart/alternative; boundary="001a113d57cc46b513055f9f1faf" Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Dec 2017 22:11:54 -0000 --001a113d57cc46b513055f9f1faf Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On December 5, 2017 at 9:25:39 AM, thomas.morin@orange.com ( thomas.morin@orange.com) wrote: > > > (2) Document Status > > > Why is this a Standards Track document? The Abstract/Introduction > say > that =E2=80=9Cthis document describes how Ethernet VPN (EVPN) can be used > as an > NVO solution and explores applicability of EVPN functions and > procedures.=E2=80=9D -- if it=E2=80=99s just a description (as the text c= learly > is), > and not a technical specification, then why it is not > Informational? > I can see how we could call it an Applicability Statement (rfc2026) > and > still publish it in the Standards Track. If we want to go that > way, we > would need some minor updates to make it clear that this is an > Applicability Statement and is not intended to stand in for a > Technical > Specification. I am not clear on the process as it related to > possible > DownRefs (see below), but I=E2=80=99m willing to Last Call an Applicabili= ty > Statement in the Standards Track=E2=80=A6if that is what you want. > > > Maybe the authors should s/describes/specifies/ to better reflect > the > content of the document. > On the other hand, rfc2026 says "A Technical Specification is any > description of a protocol, service, procedure, convention, or > format." > It seems to match as well. > > > I agree that "specifies" is a better wording for the content of this > document which does specify detailed procedures combining existing > mechanisms. It certainly needs to be Standard Track. > Ok, that=E2=80=99s fine. Alvaro. --001a113d57cc46b513055f9f1faf Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

On D= ecember 5, 2017 at 9:25:39 AM, t= homas.morin@orange.com (thom= as.morin@orange.com) wrote:



(2) Document Status


Why is this a Standards Track document? The Abstract/Introduction
say
that =E2=80=9Cthis document describes how Ethernet VPN (EVPN) can be us= ed
as an
NVO solution and explores applicability of EVPN functions and
procedures.=E2=80=9D -- if it=E2=80=99s just a description (as the tex= t clearly
is),
and not a technical specification, then why it is not
Informational?
I can see how we could call it an Applicability Statement (rfc2026)
and
still publish it in the Standards Track. If we want to go that
way, we
would need some minor updates to make it clear that this is an
Applicability Statement and is not intended to stand in for a
Technical
Specification. I am not clear on the process as it related to
possible
DownRefs (see below), but I=E2=80=99m willing to Last Call an Applicabi= lity
Statement in the Standards Track=E2=80=A6if that is what you want.

Maybe the authors should s/describes/specifies/ to better reflect
the =20
content of the document.
On the other hand, rfc2026 says "A Technical Specification is any = =20
description of a protocol, service, procedure, convention, or
format."
It seems to match as well.

I agree that "specifies" is a better wording for the content = of this
document which does specify detailed procedures combining existing
mechanisms. It certainly needs to be Standard Track.

Ok, that=E2=80=99s fine.

Alvaro.



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05 Dec 2017 22:12:06 +0000 Received: from XCH-RTP-001.cisco.com (xch-rtp-001.cisco.com [64.101.220.141]) by alln-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id vB5MC5jC020888 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Tue, 5 Dec 2017 22:12:05 GMT Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-001.cisco.com (64.101.220.141) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Tue, 5 Dec 2017 17:12:05 -0500 Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1320.000; Tue, 5 Dec 2017 17:12:04 -0500 From: "Ali Sajassi (sajassi)" To: Alvaro Retana , Martin Vigoureux , "bess-chairs@ietf.org" , "thomas.morin@orange.com" CC: "bess@ietf.org" Thread-Topic: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 Thread-Index: AQHTbUnIE1F0wt2PNkWhZhKoHul01KM04mOAgABAs4CAAIFxAP//esEA Date: Tue, 5 Dec 2017 22:12:04 +0000 Message-ID: <48971A10-0789-400F-9192-3024A401BFAE@cisco.com> References: <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.28.0.171108 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.128.224.40] Content-Type: multipart/alternative; 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Tue, 05 Dec 2017 14:22:35 -0800 (PST) Received: from 895490483151 named unknown by gmailapi.google.com with HTTPREST; Tue, 5 Dec 2017 14:22:35 -0800 From: Alvaro Retana In-Reply-To: <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> References: <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> X-Mailer: Airmail iOS (331) MIME-Version: 1.0 Date: Tue, 5 Dec 2017 14:22:35 -0800 Message-ID: To: Martin Vigoureux , bess-chairs@ietf.org, thomas.morin@orange.com Cc: bess@ietf.org Content-Type: multipart/alternative; boundary="001a113cdada97154e055f9f4562" Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Dec 2017 22:22:39 -0000 --001a113cdada97154e055f9f4562 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On December 5, 2017 at 9:25:39 AM, thomas.morin@orange.com ( thomas.morin@orange.com) wrote: > > [...] > > > M8. References > > > M8.1. TUNNEL-ENCAP (aka ) should be > Normative, which btw is marked to Obsolete rfc5512; I mention this > because both are listed in several parts, so you should take > rfc5512 out. > > > This was debated on a while ago, and this is somehow the conclusion of > the discussion: > > https://mailarchive.ietf.org/arch/msg/bess/z1J2VD9rtCQC7NHnmi_4tz_bR_w > > Copy-paste: > ---- > We'll also add idr-tunnel-encaps a Informative reference. With respect > to Tunnel Encap Extended Community (which is the only part of > idr-tunnel-encap used by evpn-overlay draft), idr-tunel-encap draft > itself references RFC 5512. > > During the course of WG LC and RFC editorship of evpn-overlay draft, if > we see that idr-tunnel-encap is progressing fast, then we can drop the > reference to RFC 5512 and make the reference to idr-tunnel-encap > Normative. Otherwise, we'll keep both references with RFC 5512 as > Normative and idr-tunnel-encap as Informative. > ---- > > The question probably is whether or not idr-tunnel-encap progress is > sufficient. > If anything, both references should at least be of the same type: I can see no reasoning why one would be Normative and the other Informative. In this case, idr-tunnel-encap already went through WGLC (according to the datatracker) =E2=80=94 we can=E2=80=99t ignore the fact that idr has consen= sus on deprecating rfc5512. Again, we don=E2=80=99t need both references. > > > > > M8.2. These should also be Normative: RFC7348, NVGRE, VXLAN-GPE, > RFC4023 > > > My process fu is weakening, but if this specification is standard track > (and I believe it should be), I believe it can't normatively depend on > Informative specs and some of the above are in this category. > It can if we call the Down References out in the IETF Last Call and no one opposes. I think we already processed at least one document with a DownRef toVXLAN, so I don=E2=80=99t think that=E2=80=99s a problem. In any case, the type of Reference should be decided based on the real dependency of the document, not on its status. Thanks! Alvaro. --001a113cdada97154e055f9f4562 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

On D= ecember 5, 2017 at 9:25:39 AM, t= homas.morin@orange.com (thom= as.morin@orange.com) wrote:


[...]

M8. References


M8.1. TUNNEL-ENCAP (aka ) should be
Normative, which btw is marked to Obsolete rfc5512; I mention this
because both are listed in several parts, so you should take
rfc5512 out.

This was debated on a while ago, and this is somehow the conclusion of
the discussion:

https://mailarchive.ietf.org/arch/msg/bess/z1J2VD9rtCQC7NHnmi_4= tz_bR_w

Copy-paste:
----
We'll also add idr-tunnel-encaps a Informative reference. With resp= ect
to Tunnel Encap Extended Community (which is the only part of
idr-tunnel-encap used by evpn-overlay draft), idr-tunel-encap draft
itself references RFC 5512.

During the course of WG LC and RFC editorship of evpn-overlay draft, if
we see that idr-tunnel-encap is progressing fast, then we can drop the
reference to RFC 5512 and make the reference to idr-tunnel-encap
Normative. Otherwise, we'll keep both references with RFC 5512 as
Normative and idr-tunnel-encap as Informative.
----

The question probably is whether or not idr-tunnel-encap progress is
sufficient.

If anything, both references should at l= east be of the same type: I can see no reasoning why one would be Normative= and the other Informative.

In this case, idr-tunnel-encap already we= nt through WGLC (according to the datatracker) =E2=80=94 we can=E2=80=99t i= gnore the fact that idr has consensus on deprecating rfc5512.=C2=A0 Again, = we don=E2=80=99t need both references.







M8.2. These should also be Normative: RFC7348, NVGRE, VXLAN-GPE,
RFC4023


My process fu is weakening, but if this specification is standard track
(and I believe it should be), I believe it can't normatively depend= on
Informative specs and some of the above are in this category.

It can if we call the Down References ou= t in the IETF Last Call and no one opposes.=C2=A0 I think we already proces= sed at least one document with a DownRef toVXLAN, so I don=E2=80=99t think = that=E2=80=99s a problem.

In any case, the type of Reference should b= e decided based on the real dependency of the document, not on its status.<= /p>

Thanks!

Alvaro.


<= /body> --001a113cdada97154e055f9f4562-- From nobody Tue Dec 5 15:16:10 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E35BC12895E; Tue, 5 Dec 2017 15:16:08 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.92 X-Spam-Level: X-Spam-Status: No, score=-1.92 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=nokia.onmicrosoft.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 q-DcZzw2pm7E; Tue, 5 Dec 2017 15:16:07 -0800 (PST) Received: from EUR01-DB5-obe.outbound.protection.outlook.com (mail-db5eur01on0125.outbound.protection.outlook.com [104.47.2.125]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 8CF61120726; Tue, 5 Dec 2017 15:16:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nokia.onmicrosoft.com; s=selector1-nokia-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=8X2J3VESP5P9l49oXKQcD+r94lZcp3Zx0XlUDo/OtDI=; b=cIXhztxYXKh+aEsOn83fkEtI1ASppuGkQrVM8JiMXS0kg+VXxYivFLW2cs8jLLC96JIqdDpx0suSd/b/DVne0ykgqi14fe3XEk723lLdhTFtdzHxLQ8zcTmmeOIF3v2ZZxbQDPoXGqkDxQmOOUbjhwvMV6rG6cX+6Clg0omDptE= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=martin.vigoureux@nokia.com; Received: from [135.244.200.249] (135.245.212.25) by DB6PR0701MB2134.eurprd07.prod.outlook.com (2603:10a6:4:50::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.302.2; Tue, 5 Dec 2017 23:16:03 +0000 To: Alvaro Retana , bess-chairs@ietf.org, thomas.morin@orange.com References: <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> Cc: bess@ietf.org From: Martin Vigoureux Message-ID: <43cce22b-4d08-a68b-8733-1c241654d338@nokia.com> Date: Wed, 6 Dec 2017 00:15:57 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; 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The nvo3 WG is >>>> focusing on >>>> Geneve as the Standard encapsulation, but this document doesn’t >>>> even mention it. >>> >>> Indeed. But The decision by NVO3 to work on Geneve is fairly recent. >>> I have indicated in the BESS report that we'll likely be working >>> closeer >>> with NVO3 from now on. An individual draft on the applicability of >>> EVPN >>> to NVO3 networks is targeting NVO3 WG. Conversely, an individual >>> draft >>> on EVPN extensions for Geneve is targeting BESS. We have agreed that >>> we'll do cross reviews at the important milestones of these docs. >> >> Perhaps draft-ietf-bess-evpn-overlay could hint on such a Geneve >> work for EVPN; something like: "Adapting the EVPN control plane to the >> Geneve encapsulation is out of the scope of this document, and is >> expected to be covered in a separate document based on the same >> architectural principles" > > Perfect, thanks! > > Is that draft already in the works, or just planned? > > Alvaro. > From nobody Tue Dec 5 19:51:22 2017 Return-Path: X-Original-To: bess@ietf.org Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 0236D128DF2; Tue, 5 Dec 2017 19:51:16 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: bess@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.67.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <151253227598.30817.13684113659866381860@ietfa.amsl.com> Date: Tue, 05 Dec 2017 19:51:16 -0800 Archived-At: Subject: [bess] I-D Action: draft-ietf-bess-evpn-overlay-09.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Dec 2017 03:51:16 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the BGP Enabled ServiceS WG of the IETF. Title : A Network Virtualization Overlay Solution using EVPN Authors : Ali Sajassi John Drake Nabil Bitar R. Shekhar James Uttaro Wim Henderickx Filename : draft-ietf-bess-evpn-overlay-09.txt Pages : 29 Date : 2017-12-05 Abstract: This document specifies how Ethernet VPN (EVPN) can be used as a Network Virtualization Overlay (NVO) solution and explores the various tunnel encapsulation options over IP and their impact on the EVPN control-plane and procedures. In particular, the following encapsulation options are analyzed: VXLAN, NVGRE, and MPLS over GRE. This document also specifies new multi-homing procedures for split- horizon filtering and mass-withdraw. It also specifies EVPN route constructions for VxLAN/NvGRE encapsulations and ASBR procedures for multi-homing NV Edge devices. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-bess-evpn-overlay/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-bess-evpn-overlay-09 https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-overlay-09 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-evpn-overlay-09 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 Dec 5 19:53:08 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E5FCA128DF2; Tue, 5 Dec 2017 19:53:05 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.52 X-Spam-Level: X-Spam-Status: No, score=-14.52 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.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 sc_sy92241Mm; Tue, 5 Dec 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XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1320.000; Tue, 5 Dec 2017 22:52:58 -0500 From: "Ali Sajassi (sajassi)" To: Alvaro Retana , "bess-chairs@ietf.org" CC: Thomas Morin , "bess@ietf.org" Thread-Topic: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 Thread-Index: AQHTbUnIE1F0wt2PNkWhZhKoHul01KM1focA Date: Wed, 6 Dec 2017 03:52:58 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.28.0.171108 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.19.76.52] Content-Type: multipart/alternative; boundary="_000_B7A13142235A455EAD31EAE02E0E916Cciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , 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--001a11492f88a62dc1055fada8d5 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On December 4, 2017 at 5:16:49 PM, John E Drake (jdrake@juniper.net) wrote: (1) Coordination with nv03 For the Chairs: Except for some clarification comments [1] related to the current version, I see no other traffic in the nvo3 list related to this document. Was there some other coordination that I=E2=80=99m missing? I = am not questioning having this document in bess (that=E2=80=99s perfectly fine); I= =E2=80=99m just raising the needed coordination with other WGs, from the Charter: "The working group will also coordinate with...NVO3 working group for coordination of protocols to support data center VPNs.=E2=80=9D *[JD] This draft had been around for nearly five years and the coordination happened a long time ago. Because NVO3 was not chartered to work on a control plane, the coordination was mainly to ensure that this draft met the requirements specified by that group.* The coordination I=E2=80=99m talking about is not the one related to the de= cision of where the work should be done. The question is to raise the point that if bess (in the case) is doing work related nvo3, then ideally the document wold have been flagged to nvo3 when it went into WGLC to allow them to review and comment. In this case, I don=E2=80=99t think this document includes anything that wo= uld be contentious in nvo3 =E2=80=94 so I=E2=80=99m happy to explicitly let the WG= know when we start the IETF LC. Alvaro. --001a11492f88a62dc1055fada8d5 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable =
On December 4, 2017 at 5:16:49 PM, John E Drake (= jdrake@juniper.net) wrote:
<= div id=3D"bloop_customfont" style=3D"font-family:Helvetica,Arial;font-size:= 13px;color:rgba(0,0,0,1.0);margin:0px;line-height:auto">

(1) Co= ordination with nv03

=C2=A0

=

For the=C2=A0Chairs:=C2=A0=C2=A0Except for some = clarification comments [1] related to the current version, I see no other t= raffic in the nvo3 list related to this document.=C2=A0=C2=A0Was there some= other coordination that I=E2=80=99m missing? =C2=A0 I am not questioning h= aving this document in bess (that=E2=80=99s perfectly fine); I=E2=80=99m ju= st raising the=C2=A0needed coordination with other WGs, from the Charter: &= quot;The working group will also coordinate with...NVO3 working group for= =C2=A0coordination of protocols to support data center VPNs.=E2=80=9D

=C2=A0

[JD]=C2=A0= This draft had been around for nearly five years and the coordination happ= ened a long time ago.=C2=A0 Because NVO3 was not chartered to work on a con= trol plane, the coordination was mainly to ensure that this draft met the r= equirements specified by that group.

=C2=A0
<= div id=3D"bloop_sign_1512574127139744000" class=3D"bloop_sign">
The coordinat= ion I=E2=80=99m talking about is not the one related to the decision of whe= re the work should be done.=C2=A0 The question is to raise the point that i= f bess (in the case) is doing work related nvo3, then ideally the document = wold have been flagged to nvo3 when it went into WGLC to allow them to revi= ew and comment.

In this case, I don=E2=80=99t think this document includes anythin= g that would be contentious in nvo3 =E2=80=94 so I=E2=80=99m happy to expli= citly let the WG know when we start the IETF LC.

Alvaro.
--001a11492f88a62dc1055fada8d5-- From nobody Wed Dec 6 07:36:48 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AC2E1126DD9; Wed, 6 Dec 2017 07:36:47 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.738 X-Spam-Level: X-Spam-Status: No, score=-1.738 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, HTML_OBFUSCATE_05_10=0.26, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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 jidmi-3so7d4; Wed, 6 Dec 2017 07:36:46 -0800 (PST) Received: from mail-ot0-x242.google.com (mail-ot0-x242.google.com [IPv6:2607:f8b0:4003:c0f::242]) (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 22E02126D45; Wed, 6 Dec 2017 07:36:46 -0800 (PST) Received: by mail-ot0-x242.google.com with SMTP id s4so3678288ote.4; Wed, 06 Dec 2017 07:36:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:in-reply-to:references:mime-version:date:message-id:subject:to :cc; bh=ApZtFyHAm0x+B2PnfdnjCytXaGFv/EQ7Jsj1VU18g5Y=; b=oDA7qv2qIwUxinzbbuVpGqvHDrfa3d9tDwOrq5TxZho95ZUtgQ9laxbZPS5sPNOYny g9MSntBbKtx8XE7P//oSOSiJs5hqRxKo8VIpm4pJPo0IiOHoEbb8HmH2sMq5XPlmkLR7 HvJwAbS33qX5MvE8SYa3GlSdH71t7+gh+mbBp4xMluUl6POiqlQmnj+Hr0YCL25Md4Vc v0FXFRG6qNUX+VKnGaPpg5OKwctRMyt59lh9R+iKCr6KzoH/IfM+uvNoccv8Nb2tKjTk 5dvMzbfX0vQ/cQGkPIYYOdG+xwmDyboqphrCsOhxfP557FMaQ3YEE9nv9WgEpV773SPO bs0g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:in-reply-to:references:mime-version:date :message-id:subject:to:cc; bh=ApZtFyHAm0x+B2PnfdnjCytXaGFv/EQ7Jsj1VU18g5Y=; b=LB5WYtGsyhmzkeOb/l5DIrlbptel+szPh//EZchAKFCkTmzpVMILIPw0sXnMR6HOwW qSUGXoiVDb7ZOVIqGD13vnAR2qCNCZS9X4RrVoBApkLxR3Q2HPz5eE3da2RHBq3KzhGb wvbpWHIB0zNBqsxwvoeNRz4ytsS3j3dazK1BLrn5VFnPo3uH5eMSXYjQM4ph4rzty5oh hhLPFd2K3APxIJo3eXd7aigk4RM4ekfvR7JAI1Gr4Wv8qUq+S8QEdY6ygNMvY5+UY04U v8AsKoQ0x+4gCcAzJeLxKThuA8zXaBHVyFfOHPSrbqkcBABh/vchWwDA7S61P/6nsGhr rX3g== X-Gm-Message-State: AJaThX7sAcDAPfvRFivXgfCvpQM4wYdNXh6YupN0kbUADXaKSmzXwNSE IehUyywgVXQRkh9oKgw9n4UlaZ7HA+ceSiWKFbE= X-Google-Smtp-Source: AGs4zMbJmEssNun1KCeHVe8PREUuDk9apoPofaKshttk4Fxxp/p7/4tWWHcQfYokuF+In9WpZWssn+b6Bybv0A4WAfc= X-Received: by 10.157.56.200 with SMTP id k8mr21146397ote.3.1512574605595; Wed, 06 Dec 2017 07:36:45 -0800 (PST) Received: from 1058052472880 named unknown by gmailapi.google.com with HTTPREST; Wed, 6 Dec 2017 07:36:44 -0800 From: Alvaro Retana In-Reply-To: <109CAA9D-AA82-423E-8CEE-E721A1879D33@cisco.com> References: <3ca43a6b-2716-ff87-76da-ab520f23c6b4@nokia.com> <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> <109CAA9D-AA82-423E-8CEE-E721A1879D33@cisco.com> X-Mailer: Airmail (461) MIME-Version: 1.0 Date: Wed, 6 Dec 2017 07:36:44 -0800 Message-ID: To: "Ali Sajassi (sajassi)" , "bess-chairs@ietf.org" , "thomas.morin@orange.com" , Martin Vigoureux Cc: "bess@ietf.org" Content-Type: multipart/alternative; boundary="001a11c01f1810188f055fadb81f" Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Dec 2017 15:36:48 -0000 --001a11c01f1810188f055fadb81f Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On December 6, 2017 at 6:52:42 AM, Ali Sajassi (sajassi) (sajassi@cisco.com= ) wrote: Martin Vigoureux, 2017-12-05 11:34: Perhaps draft-ietf-bess-evpn-overlay could hint on such a Geneve work for EVPN; something like: "Adapting the EVPN control plane to the Geneve encapsulation is out of the scope of this document, and is expected to be covered in a separate document based on the same architectural principles" I will add the following sentence to the abstract. =E2=80=9CThis specification is also applicable to other NVO encapsulations = such as GENEVE, GPE, and GUE; however, these encapsulations may require additional incremental work and thus will be specified in separate document(s).=E2=80= =9D I think that mentioning other encapsulations (beyond Geneve) is not necessary (and may raise more questions). IOW, I like Martin=E2=80=99s sug= gested text more. In either case, at least add an Informative reference to draft-boutros-bess-evpn-geneve. Thanks! Alvaro. --001a11c01f1810188f055fadb81f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable =
On December 6, 2017 at 6:52:42 AM, Ali Sajassi (s= ajassi) (sajassi@cisco.com) wrote:=
<= /div>
=C2=A0
Martin Vig= oureux, 2017-12-05 11:34:=C2=A0

Perhaps draft-ietf-bess-evpn-overlay could hint on such a Geneve=C2=A0
work for EVPN; somethi= ng like: "Adapting the EVPN control plane to the=C2=A0
Geneve encapsulation is out of the scope o= f this document, and is=C2=A0<= br>expected to be covered in a separate document based on the same=C2=A0
architectural principles"= ;=C2=A0

I will add the = following sentence to the abstract.= =C2=A0
=E2=80=9CThis specification is also applicable to other NV= O encapsulations such as GENEVE, GPE, and GUE; however, these encapsulation= s may require additional incremental work and thus will be specified in sep= arate document(s).=E2=80=9D=C2=A0

I think that mentioning other e= ncapsulations (beyond Geneve) is not necessary (and may raise more question= s).=C2=A0 IOW, I like Martin=E2=80=99s suggested text more.

In either= case, at least add an Informative reference to=C2=A0draft-boutros-bess-evp= n-geneve.

Thanks!

Alvaro.

--001a11c01f1810188f055fadb81f-- From nobody Wed Dec 6 12:25:22 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E9947124207; Wed, 6 Dec 2017 12:25:19 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.52 X-Spam-Level: X-Spam-Status: No, score=-14.52 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.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 CXlGMWgJ8lJw; Wed, 6 Dec 2017 12:25:18 -0800 (PST) Received: from alln-iport-6.cisco.com (alln-iport-6.cisco.com [173.37.142.93]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0FFF11200FC; 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06 Dec 2017 20:25:17 +0000 Received: from XCH-RTP-004.cisco.com (xch-rtp-004.cisco.com [64.101.220.144]) by alln-core-12.cisco.com (8.14.5/8.14.5) with ESMTP id vB6KPG3f032596 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Wed, 6 Dec 2017 20:25:17 GMT Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-004.cisco.com (64.101.220.144) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Wed, 6 Dec 2017 15:25:16 -0500 Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1320.000; Wed, 6 Dec 2017 15:25:16 -0500 From: "Ali Sajassi (sajassi)" To: Alvaro Retana , "bess-chairs@ietf.org" , "thomas.morin@orange.com" , Martin Vigoureux CC: "bess@ietf.org" Thread-Topic: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 Thread-Index: AQHTbUnIE1F0wt2PNkWhZhKoHul01KM04mOAgABAs4CAAOF7AIAAxLYA///KfwA= Date: Wed, 6 Dec 2017 20:25:16 +0000 Message-ID: <8288808A-708C-465D-8868-AFFE685D70B8@cisco.com> References: <3ca43a6b-2716-ff87-76da-ab520f23c6b4@nokia.com> <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> <109CAA9D-AA82-423E-8CEE-E721A1879D33@cisco.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.28.0.171108 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.19.76.52] Content-Type: multipart/alternative; boundary="_000_8288808A708C465D8868AFFE685D70B8ciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Dec 2017 20:25:20 -0000 --_000_8288808A708C465D8868AFFE685D70B8ciscocom_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 DQoNCkkgd2lsbCBhZGQgdGhlIGZvbGxvd2luZyBzZW50ZW5jZSB0byB0aGUgYWJzdHJhY3QuDQri gJxUaGlzIHNwZWNpZmljYXRpb24gaXMgYWxzbyBhcHBsaWNhYmxlIHRvIG90aGVyIE5WTyBlbmNh cHN1bGF0aW9ucyBzdWNoIGFzIEdFTkVWRSwgR1BFLCBhbmQgR1VFOyBob3dldmVyLCB0aGVzZSBl bmNhcHN1bGF0aW9ucyBtYXkgcmVxdWlyZSBhZGRpdGlvbmFsIGluY3JlbWVudGFsIHdvcmsgYW5k IHRodXMgd2lsbCBiZSBzcGVjaWZpZWQgaW4gc2VwYXJhdGUgZG9jdW1lbnQocyku4oCdDQoNCkkg dGhpbmsgdGhhdCBtZW50aW9uaW5nIG90aGVyIGVuY2Fwc3VsYXRpb25zIChiZXlvbmQgR2VuZXZl KSBpcyBub3QgbmVjZXNzYXJ5IChhbmQgbWF5IHJhaXNlIG1vcmUgcXVlc3Rpb25zKS4gIElPVywg SSBsaWtlIE1hcnRpbuKAmXMgc3VnZ2VzdGVkIHRleHQgbW9yZS4NCg0KT0ssIEkgY2hhbmdlZCB0 aGUgc2VudGVuY2UgdG8gdGhlIGZvbGxvd2luZzoNCg0K4oCcVGhpcyBzcGVjaWZpY2F0aW9uIGlz IGFsc28gYXBwbGljYWJsZSB0byBbR0VORVZFXSBlbmNhcHN1bGF0aW9uOyBob3dldmVyLCBzb21l IGluY3JlbWVudGFsIHdvcmsgaXMgcmVxdWlyZWQgd2hpY2ggd2lsbCBiZSBjb3ZlcmVkIGluIGEg c2VwYXJhdGUgZG9jdW1lbnQgW0VWUE4tR0VORVZFXS7igJ0NCg0KSW4gZWl0aGVyIGNhc2UsIGF0 IGxlYXN0IGFkZCBhbiBJbmZvcm1hdGl2ZSByZWZlcmVuY2UgdG8gZHJhZnQtYm91dHJvcy1iZXNz LWV2cG4tZ2VuZXZlLg0KDQpEb25lLg0KDQpDaGVlcnMsDQoNCkFsaQ0KDQpUaGFua3MhDQoNCkFs dmFyby4NCg== --_000_8288808A708C465D8868AFFE685D70B8ciscocom_ Content-Type: text/html; 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Thu, 07 Dec 2017 06:05:39 -0800 (PST) Received: from 1058052472880 named unknown by gmailapi.google.com with HTTPREST; Thu, 7 Dec 2017 06:05:39 -0800 From: Alvaro Retana In-Reply-To: References: X-Mailer: Airmail (461) MIME-Version: 1.0 Date: Thu, 7 Dec 2017 06:05:39 -0800 Message-ID: To: "bess-chairs@ietf.org" , "Ali Sajassi (sajassi)" Cc: Thomas Morin , "bess@ietf.org" Content-Type: multipart/alternative; boundary="001a11c179841f08d1055fc0906d" Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Dec 2017 14:05:43 -0000 --001a11c179841f08d1055fc0906d Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On December 5, 2017 at 10:53:02 PM, Ali Sajassi (sajassi) (sajassi@cisco.co= m) wrote: Ali: Hi! Thanks for the review. Please refer to my replies to your comments marked with [Ali] inline. I have incorporated them in rev09 of the draft that has just been published. Please let me know if you have any other comments. The only significant issues left are about the references (see below). I need the Normative references to be in place so I can start the IETF LC (and can point them out there). As soon as you post an update I=E2=80=99ll= start the LC. Thanks! Alvaro. ... M3. From 5.2 (MPLS over GRE): M3.1. =E2=80=9C...when it is used in conjunction with EVPN the GRE key fiel= d SHOULD be present, and SHOULD be used to provide a 32-bit entropy field.=E2=80=9D = What are the cases when it is ok not to include the field, or use it for that purpose? IOW, why are these SHOULDs not MUSTs? Or maybe, when is the key field needed? [Ali] The reason it is a =E2=80=9CSHOULD=E2=80=9D because, the MPLS over GR= E encap still works without the key field set to the entropy value; however, if that=E2= =80=99s done, then ECMP won=E2=80=99t work well in the network. Also, the core rout= ers in the network may not support ECMP based on GRE key and that=E2=80=99s anothe= r reason for =E2=80=9CSHOULD=E2=80=9D. Can you include something along those lines? ... M8. References M8.1. TUNNEL-ENCAP (aka draft-ietf-idr-tunnel-encaps) should be Normative, which btw is marked to Obsolete rfc5512; I mention this because both are listed in several parts, so you should take rfc5512 out. [Ali] Please refer to Thomas explanation on this which is copied here for your convenience: =E2=80=9CThis was debated on a while ago, and this is somehow the conclusio= n of the discussion: https://mailarchive.ietf.org/arch/msg/bess/z1J2VD9rtCQC7NHnmi_4tz_bR_w Copy-paste: ---- We'll also add idr-tunnel-encaps a Informative reference. With respect to Tunnel Encap Extended Community (which is the only part of idr-tunnel-encap used by evpn-overlay draft), idr-tunel-encap draft itself references RFC 5512. During the course of WG LC and RFC editorship of evpn-overlay draft, if we see that idr-tunnel-encap is progressing fast, then we can drop the reference to RFC 5512 and make the reference to idr-tunnel-encap Normative. Otherwise, we'll keep both references with RFC 5512 as Normative and idr-tunnel-encap as Informative. ---- The question probably is whether or not idr-tunnel-encap progress is sufficient.=E2=80=9D As I replied back: If anything, both references should at least be of the same type: I can see no reasoning why one would be Normative and the other Informative. In this case, idr-tunnel-encap already went through WGLC (according to the datatracker) =E2=80=94 we can=E2=80=99t ignore the fact that idr has consen= sus on deprecating rfc5512. Again, we don=E2=80=99t need both references. M8.2. These should also be Normative: RFC7348, NVGRE, VXLAN-GPE, RFC4023 [Ali] Please refer to Thomas explanation on this which is copied here for your convenience: =E2=80=9CMy process fu is weakening, but if this specification is standard = track (and I believe it should be), I believe it can't normatively depend on Informative specs and some of the above are in this category.=E2=80=9D My reply: It can if we call the Down References out in the IETF Last Call and no one opposes. I think we already processed at least one document with a DownRef toVXLAN, so I don=E2=80=99t think that=E2=80=99s a problem. In any case, the type of Reference should be decided based on the real dependency of the document, not on its status. --001a11c179841f08d1055fc0906d Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable =
On December 5, 2017 at 10:53:02 PM, Ali Sajassi (= sajassi) (sajassi@cisco.com) wrote= :

<= div id=3D"bloop_customfont" style=3D"font-family:Helvetica,Arial;font-size:= 13px;color:rgba(0,0,0,1.0);margin:0px;line-height:auto">Ali:

Hi!

Thanks for the review. P= lease refer to my replies to your comments marked with [Ali] inline. I have= incorporated them in rev09 of the draft that has just been published. Plea= se let me know if you have any other comments.

=

The only significant issues left are about the= references (see below).

I need the Normative references to be in pla= ce so I can start the IETF LC (and can point them out there).=C2=A0 As soon= as you post an update I=E2=80=99ll start the LC.

Thanks!

Alvar= o.



...

M3. From=C2=A05.2 (MPLS over GRE):

=C2=A0

M3.1. =E2=80=9C...when it is used in=C2=A0conjunction with EVPN t= he GRE key field SHOULD be present, and SHOULD=C2=A0be used to provide a 32= -bit entropy field.=E2=80=9D =C2=A0What are the cases when it is ok not to = include the field, or use it for that purpose?=C2=A0 IOW, why are these SHO= ULDs not MUSTs?=C2=A0 Or maybe, when is the key field needed?

=C2=A0=

[Ali] The reaso= n it is a =E2=80=9CSHOULD=E2=80=9D because, the MPLS over GRE encap still w= orks without the key field set to the entropy value; however, if that=E2=80= =99s done, then ECMP won=E2=80=99t work well in the network. Also, the core= routers in the network may not support ECMP based on GRE key and that=E2= =80=99s another reason for =E2=80=9CSHOULD=E2=80=9D.

=

Can you include something along th= ose lines?


...

M8.=C2=A0References

=C2=A0

M= 8.1. TUNNEL-ENCAP (aka=C2=A0draft-ietf-idr-tunnel-encaps) should be Normati= ve, which btw is marked to Obsolete rfc5512; I mention=C2=A0this because bo= th are listed in several parts, so you should take rfc5512 out.

<= p class=3D"MsoNormal">=C2= =A0

[Ali] Please refer to Thomas explanation on this which= is copied here for your convenience:

=E2=80=9CThis was de= bated on a while ago, and this is somehow the conclusion of

the discussion:

=C2=A0

= https://= mailarchive.ietf.org/arch/msg/bess/z1J2VD9rtCQC7NHnmi_4tz_bR_w

=C2=A0

Copy-paste:

----

We'll also add idr-tunnel-encaps a Informative reference. With= respect

to Tunnel Encap Extended Community (which is the = only part of

idr-tunnel-encap used by evpn-overlay draft),= idr-tunel-encap draft

itself references RFC 5512.<= /p>

=C2=A0

During the course of WG LC and RFC editor= ship of evpn-overlay draft, if

we see that idr-tunnel-enca= p is progressing fast, then we can drop the

reference to R= FC 5512 and make the reference to idr-tunnel-encap

Normati= ve. Otherwise, we'll keep both references with RFC 5512 as

Normative and idr-tunnel-encap as Informative.

----

=C2=A0

The question probably is whether or= not idr-tunnel-encap progress is

sufficient.=E2=80=9D

As I replied ba= ck:

If anything, both references should at least be of the same type:= I can see no reasoning why one would be Normative and the other Informativ= e.

In this case, idr-tunnel-encap already went through WGLC (accordin= g to the datatracker) =E2=80=94 we can=E2=80=99t ignore the fact that idr h= as consensus on deprecating rfc5512.=C2=A0 Again, we don=E2=80=99t need bot= h references.


M8.2. These should also be Normative:=C2=A0RFC7348, NVGRE,=C2=A0VXLAN-GPE,=C2=A0RFC4023

=C2=A0

[Ali] Please refer to Thomas explanation on this which is copied here fo= r your convenience:

=E2=80=9CMy process fu is weakening, but if this specification is stand= ard track

(and I= believe it should be), I believe it can't normatively depend on=

Informative specs and = some of the above are in this category.=E2=80=9D

My reply:

It can if we call the Down R= eferences out in the IETF Last Call and no one opposes.=C2=A0 I think we al= ready processed at least one document with a DownRef toVXLAN, so I don=E2= =80=99t think that=E2=80=99s a problem.

In any case, the type of Refe= rence should be decided based on the real dependency of the document, not o= n its status.

--001a11c179841f08d1055fc0906d-- From nobody Thu Dec 7 18:59:52 2017 Return-Path: X-Original-To: bess@ietf.org Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 941621205F1; Thu, 7 Dec 2017 18:59:45 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: bess@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.67.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <151270198556.5838.18411751959210635849@ietfa.amsl.com> Date: Thu, 07 Dec 2017 18:59:45 -0800 Archived-At: Subject: [bess] I-D Action: draft-ietf-bess-evpn-overlay-10.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Dec 2017 02:59:46 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the BGP Enabled ServiceS WG of the IETF. Title : A Network Virtualization Overlay Solution using EVPN Authors : Ali Sajassi John Drake Nabil Bitar R. Shekhar James Uttaro Wim Henderickx Filename : draft-ietf-bess-evpn-overlay-10.txt Pages : 30 Date : 2017-12-07 Abstract: This document specifies how Ethernet VPN (EVPN) can be used as a Network Virtualization Overlay (NVO) solution and explores the various tunnel encapsulation options over IP and their impact on the EVPN control-plane and procedures. In particular, the following encapsulation options are analyzed: VXLAN, NVGRE, and MPLS over GRE. This specification is also applicable to GENEVE encapsulation; however, some incremental work is required which will be covered in a separate document. This document also specifies new multi-homing procedures for split-horizon filtering and mass-withdraw. It also specifies EVPN route constructions for VxLAN/NvGRE encapsulations and ASBR procedures for multi-homing NV Edge devices. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-bess-evpn-overlay/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-bess-evpn-overlay-10 https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-overlay-10 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-evpn-overlay-10 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 Dec 7 19:02:01 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 39B70128B44; Thu, 7 Dec 2017 19:01:59 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.52 X-Spam-Level: X-Spam-Status: No, score=-14.52 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.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 AGd52WbUVN0P; Thu, 7 Dec 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-0500 From: "Ali Sajassi (sajassi)" To: Alvaro Retana , "bess-chairs@ietf.org" CC: Thomas Morin , "bess@ietf.org" Thread-Topic: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 Thread-Index: AQHTbUnIE1F0wt2PNkWhZhKoHul01KM1focAgALDooCAAFLEAA== Date: Fri, 8 Dec 2017 03:01:52 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.28.0.171108 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.19.76.52] Content-Type: multipart/alternative; boundary="_000_A8721DD2C7434E4F843B86F1671A9170ciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: 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[IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 62297128D3E; Thu, 7 Dec 2017 21:03:06 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: bess@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.67.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <151270938636.5929.2449344229665634567@ietfa.amsl.com> Date: Thu, 07 Dec 2017 21:03:06 -0800 Archived-At: Subject: [bess] I-D Action: draft-ietf-bess-mvpn-mib-05.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Dec 2017 05:03:06 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the BGP Enabled ServiceS WG of the IETF. Title : BGP/MPLS Layer 3 VPN Multicast Management Information Base Authors : Zhaohui (Jeffrey) Zhang Saud Asif Andy Green Cisco Systems Pradeep G. Jain Hiroshi Tsunoda Filename : draft-ietf-bess-mvpn-mib-05.txt Pages : 40 Date : 2017-12-07 Abstract: This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects to configure and/or monitor MVPN, Multicast in MultiProtocol Label Switching/Border Gateway Protocol (MPLS/BGP) IP Virtual Private Networks (VPNs) on a Provider Edge router. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-bess-mvpn-mib/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-bess-mvpn-mib-05 https://datatracker.ietf.org/doc/html/draft-ietf-bess-mvpn-mib-05 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-mvpn-mib-05 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 Dec 8 01:39:26 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8303C126579; Fri, 8 Dec 2017 01:39:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.215 X-Spam-Level: X-Spam-Status: No, score=0.215 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_BRBL_LASTEXT=1.449, SPF_SOFTFAIL=0.665] autolearn=no 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 VVI45QjUlUlk; Fri, 8 Dec 2017 01:39:23 -0800 (PST) Received: from p-mail2.rd.orange.com (p-mail2.rd.orange.com [161.106.1.3]) by ietfa.amsl.com (Postfix) with ESMTP id 5FDB41200CF; Fri, 8 Dec 2017 01:39:23 -0800 (PST) Received: from p-mail2.rd.orange.com (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id 81DC3E300BA; Fri, 8 Dec 2017 10:39:22 +0100 (CET) Received: from FTRDCH01.rd.francetelecom.fr (unknown [10.194.32.11]) by p-mail2.rd.orange.com (Postfix) with ESMTP id D1AA1E300B8; Fri, 8 Dec 2017 10:39:21 +0100 (CET) Received: from l-fipglop (10.193.71.131) by FTRDCH01.rd.francetelecom.fr (10.194.32.11) with Microsoft SMTP Server id 14.3.361.1; Fri, 8 Dec 2017 10:39:21 +0100 Message-ID: <1512725961.28574.2.camel@orange.com> From: Thomas Morin To: "Ali Sajassi (sajassi)" , Alvaro Retana , "bess-chairs@ietf.org" CC: "bess@ietf.org" Date: Fri, 8 Dec 2017 10:39:21 +0100 In-Reply-To: References: Organization: Orange S.A. Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.2-1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Dec 2017 09:39:25 -0000 Ali Sajassi (sajassi), 2017-12-08 03:01: > M8.2. These should also be Normative: RFC7348, NVGRE, VXLAN- > > GPE, RFC4023 > > > > [Ali] Please refer to Thomas explanation on this which is copied > > here for your convenience: > > “My process fu is weakening, but if this specification is standard > > track > > (and I believe it should be), I believe it can't normatively depend > > on > > Informative specs and some of the above are in this category.” > > My reply: > It can if we call the Down References out in the IETF Last Call and > no one opposes. I think we already processed at least one document > with a DownRef toVXLAN, so I don’t think that’s a problem. > In any case, the type of Reference should be decided based on the > real dependency of the document, not on its status. > [Ali2] Done. I've just updated the shepherd review to list the downward references. Best, -Thomas From nobody Fri Dec 8 01:45:40 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4F586126CBF; Fri, 8 Dec 2017 01:45:38 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.215 X-Spam-Level: X-Spam-Status: No, score=0.215 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_BRBL_LASTEXT=1.449, SPF_SOFTFAIL=0.665] autolearn=no 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 KFYwrn_iiH1b; Fri, 8 Dec 2017 01:45:37 -0800 (PST) Received: from p-mail2.rd.orange.com (p-mail2.rd.orange.com [161.106.1.3]) by ietfa.amsl.com (Postfix) with ESMTP id 5C987126CB6; Fri, 8 Dec 2017 01:45:37 -0800 (PST) Received: from p-mail2.rd.orange.com (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id B637DE300BA; Fri, 8 Dec 2017 10:45:36 +0100 (CET) Received: from FTRDCH01.rd.francetelecom.fr (unknown [10.194.32.11]) by p-mail2.rd.orange.com (Postfix) with ESMTP id 9D21EE300B8; Fri, 8 Dec 2017 10:45:36 +0100 (CET) Received: from l-fipglop (10.193.71.131) by FTRDCH01.rd.francetelecom.fr (10.194.32.11) with Microsoft SMTP Server id 14.3.361.1; Fri, 8 Dec 2017 10:45:35 +0100 Message-ID: <1512726336.28574.6.camel@orange.com> From: Thomas Morin To: "Ali Sajassi (sajassi)" , Martin Vigoureux , Alvaro Retana , "bess-chairs@ietf.org" CC: "bess@ietf.org" Date: Fri, 8 Dec 2017 10:45:36 +0100 In-Reply-To: <109CAA9D-AA82-423E-8CEE-E721A1879D33@cisco.com> References: <3ca43a6b-2716-ff87-76da-ab520f23c6b4@nokia.com> <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> <109CAA9D-AA82-423E-8CEE-E721A1879D33@cisco.com> Organization: Orange S.A. Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.2-1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Dec 2017 09:45:38 -0000 Ali, A few nits, sorry for not answering earlier: > > I added the following paragraph to section 6 for clarification: > “When a PE advertises multiple supported encapsulations, it MUST > advertise encapsulations that use the same EVPN procedures including > procedures associated with split-horizon filtering described in > section 8.3.1. For example, VxLAN and NvGRE (or MPLS and MPLS over > GRE) encapsulations use the same EVPN procedures and thus a PE can > advertise both of them and can support either of them or both of them > simultaneously. However, a PE MUST NOT advertise VxLAN and MPLS You should say "VxLAN/NVGRE" here to be consistent with the rest of the document that treats VXLAN and NVGRE equally. > encapsulations together because a) MPLS field of EVPN routes is set - s/MPLS field/the MPLS field/ - "(a)" instead of "a)" would be a bit more readable > to either a MPLS label for a VNI but not both and b) some of EVPN - s/a MPLS label/an MPLS label/ - s/for a VNI/or a VNI/ - s/some of EVPN/some EVPN/ (?) > procedures (such as split-horizon filtering) are different for > VxLAN/NvGRE and MPLS encapsulations.” Thanks, -Thomas From nobody Fri Dec 8 04:43:01 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 20627124B17 for ; Fri, 8 Dec 2017 04:43:00 -0800 (PST) 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=ieee-org.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 E8rwpPlujD4M for ; Fri, 8 Dec 2017 04:42:57 -0800 (PST) Received: from mail-qt0-x22f.google.com (mail-qt0-x22f.google.com [IPv6:2607:f8b0:400d:c0d::22f]) (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 C2056124D68 for ; Fri, 8 Dec 2017 04:42:57 -0800 (PST) Received: by mail-qt0-x22f.google.com with SMTP id a16so25630464qtj.3 for ; Fri, 08 Dec 2017 04:42:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ieee-org.20150623.gappssmtp.com; s=20150623; h=mime-version:sender:from:date:message-id:subject:to:cc; bh=YMDwuvM1D+CL078FVRIUqpwMYzhwZ56we/9ebdCTtQ4=; b=nynV9Hamrhzdl8YQbfZQUxBXBwjX6y8xkvo8fImOL0Ieic/KvqEMeMz4zJcz0SETTy UXxp+IXhtoUI8Jz+MeIisHdVgsEGHMa0XA6Qg6PG+KePnLjH3+LPoTSvnjC3Nvmwrn8S VUjPeURsbIrD+IDv4fWOCN/+jSgdrj5ee5qW7tw5bn52lKIG0fpl3vN9WOdfRUHU2a/+ BzAAzu0DYJnId/sXMkmVK2E5w+WG5Zpj5HM9mPYerwiLcyeDEg8U7jq2/V858/YCR7B7 M9h/tzsTWLjk5kJg1OmalhPudbigYITn4OdTpw18XqozS4gHjHxJw62i0LeJiYLcMe0D X7EQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:from:date:message-id:subject :to:cc; bh=YMDwuvM1D+CL078FVRIUqpwMYzhwZ56we/9ebdCTtQ4=; b=IKOgEjZHQQ7EXJ8ojHLwwyzx1c2w61pY0D2QrYDGLYGfbYyPz9vc7rkG0JGkfaPg/e FHKMgFdnHQST/ms1hEIidy5/EkhZVxe7vnb0HB9IH/wmX7BbhQUZ/5P1FJ3NeMlV/n3C 13jIpRKIGhpZGHGjdxTMtDC/oSq5vxzhvtQeI8DQuQIT+O6vgcwoqsdphF/LCv7HsTHs L6YlqCb8pa3H4ta4Nudwd6uRGQV/K5fgtMZkDJA/waofWrO0gaIqCWXWf87IN+2x6uiO B8GVjiC+ob6kILC2KheDDACVL7zel8aygtsjdiArepm6lUweD/knU42LNA83g/SntTe6 PzFg== X-Gm-Message-State: AKGB3mLVtw7YCVQHPeDTrCAs2LRBTmfsx15KqL60X0dSCJkWKzV3b0YO y9ZxLf/gYwDv0Jv0nlK0nhBrHiwnPg3KugDSJTuZHA== X-Google-Smtp-Source: AGs4zMbV6WhQd3Wq7b6SsQR8NNmjQ8JtGqVmEkLeEYLqGKs69aHYRBe8a737cuyiT6M7SZLCScynQz2Zap4WzGxR/Xc= X-Received: by 10.55.18.92 with SMTP id c89mr35269416qkh.297.1512736976655; Fri, 08 Dec 2017 04:42:56 -0800 (PST) MIME-Version: 1.0 Sender: dr.h.t@ieee.org Received: by 10.140.86.84 with HTTP; Fri, 8 Dec 2017 04:42:16 -0800 (PST) From: Hiroshi Tsunoda Date: Fri, 8 Dec 2017 13:42:16 +0100 X-Google-Sender-Auth: myvyePY1auW-u3ZZtWf9rke4zPY Message-ID: To: "Glenn M. Keeni" Cc: "Jeffrey (Zhaohui) Zhang" , "bess@ietf.org" Content-Type: text/plain; charset="UTF-8" Archived-At: Subject: [bess] Update to draft-ietf-bess-mvpn-mib-05 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Dec 2017 12:43:00 -0000 Dear Glenn, I have submitted the new version of BGP/MPLS Layer 3 VPN Multicast MIB. (draft-ietf-bess-mvpn-mib-05.txt) Since I have been focusing on draft-ietf-bess-l2-l3-vpn-mcast-mib matter, this update includes only minor improvement. Sorry for the late progress. I am going to simplify the MIB design and clarify its usage according to your recommendation in the next revision. URL: https://www.ietf.org/internet-drafts/draft-ietf-bess-mvpn-mib-05.txt Htmlized: https://tools.ietf.org/html/draft-ietf-bess-mvpn-mib-05 Htmlized: https://datatracker.ietf.org/doc/html/draft-ietf-bess-mvpn-mib-05 Diff: https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-mvpn-mib-05 Best regards, -- tsuno From nobody Fri Dec 8 11:06:47 2017 Return-Path: X-Original-To: bess@ietf.org Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 8F61D128DF2; Fri, 8 Dec 2017 11:06:46 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: The IESG To: "IETF-Announce" X-Test-IDTracker: no X-IETF-IDTracker: 6.67.0 Auto-Submitted: auto-generated Precedence: bulk CC: aretana.ietf@gmail.com, draft-ietf-bess-evpn-overlay@ietf.org, Thomas Morin , thomas.morin@orange.com, bess-chairs@ietf.org, bess@ietf.org Reply-To: ietf@ietf.org Sender: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-ID: <151276000658.5904.14206192368132702268.idtracker@ietfa.amsl.com> Date: Fri, 08 Dec 2017 11:06:46 -0800 Archived-At: Subject: [bess] Last Call: (A Network Virtualization Overlay Solution using EVPN) to Proposed Standard X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Dec 2017 19:06:46 -0000 The IESG has received a request from the BGP Enabled ServiceS WG (bess) to consider the following document: - 'A Network Virtualization Overlay Solution using EVPN' as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2017-12-22. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document specifies how Ethernet VPN (EVPN) can be used as a Network Virtualization Overlay (NVO) solution and explores the various tunnel encapsulation options over IP and their impact on the EVPN control-plane and procedures. In particular, the following encapsulation options are analyzed: VXLAN, NVGRE, and MPLS over GRE. This specification is also applicable to GENEVE encapsulation; however, some incremental work is required which will be covered in a separate document. This document also specifies new multi-homing procedures for split-horizon filtering and mass-withdraw. It also specifies EVPN route constructions for VxLAN/NvGRE encapsulations and ASBR procedures for multi-homing NV Edge devices. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-bess-evpn-overlay/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-bess-evpn-overlay/ballot/ No IPR declarations have been submitted directly on this I-D. The document contains these normative downward references. See RFC 3967 for additional information: rfc7637: NVGRE: Network Virtualization Using Generic Routing Encapsulation (Informational - Independent Submission Editor stream) draft-ietf-idr-tunnel-encaps: The BGP Tunnel Encapsulation Attribute (None - IETF stream) rfc7348: Virtual eXtensible Local Area Network (VXLAN): A Framework for Overlaying Virtualized Layer 2 Networks over Layer 3 Networks (Informational - Independent Submission Editor stream) draft-ietf-nvo3-vxlan-gpe: Generic Protocol Extension for VXLAN (None - IETF stream) From nobody Sun Dec 10 22:59:01 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3B53C1270A7; Sun, 10 Dec 2017 22:59:00 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.521 X-Spam-Level: X-Spam-Status: No, score=-14.521 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, 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(version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Mon, 11 Dec 2017 06:58:57 GMT Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-001.cisco.com (64.101.220.141) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Mon, 11 Dec 2017 01:58:56 -0500 Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1320.000; Mon, 11 Dec 2017 01:58:56 -0500 From: "Ali Sajassi (sajassi)" To: Thomas Morin , Martin Vigoureux , Alvaro Retana , "bess-chairs@ietf.org" CC: "bess@ietf.org" Thread-Topic: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 Thread-Index: AQHTbUnIE1F0wt2PNkWhZhKoHul01KM04mOAgABAs4CAAOF7AIADh0UAgAQB14A= Date: Mon, 11 Dec 2017 06:58:56 +0000 Message-ID: <56506AD6-326D-4401-ADC7-024BB865CCFD@cisco.com> References: <3ca43a6b-2716-ff87-76da-ab520f23c6b4@nokia.com> <23037_1512483940_5A26AC64_23037_392_5_1512483939.26596.80.camel@orange.com> <109CAA9D-AA82-423E-8CEE-E721A1879D33@cisco.com> <1512726336.28574.6.camel@orange.com> In-Reply-To: <1512726336.28574.6.camel@orange.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.28.0.171108 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.19.76.52] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [bess] AD Review of draft-ietf-bess-evpn-overlay-08 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Dec 2017 06:59:00 -0000 DQpIaSBUaG9tYXMsDQoNCkkgaGF2ZSBpbmNvcnBvcmF0ZWQgeW91ciBjb21tZW50cyBpbnRvIHJl djExIG9mIHRoZSBkb2N1bWVudC4gDQoNCkNoZWVycywNCkFsaQ0KDQpPbiAxMi84LzE3LCAxOjQ1 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bess Co-Chair Thread-Index: AQHTar/QaBQUlQUmc0OQ070C3dlQ2aMvBtmAgAXHSYCACMragA== Date: Mon, 11 Dec 2017 07:19:32 +0000 Message-ID: <37B07F60-E58B-4197-B253-58CE21DD689E@cisco.com> References: <20181_1512146931_5A2187F3_20181_172_1_1512146931.4117.139.camel@orange.com> <73458a60-df4e-70ff-03b7-f998837981fa@nokia.com> In-Reply-To: <73458a60-df4e-70ff-03b7-f998837981fa@nokia.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.28.0.171108 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.19.76.52] Content-Type: text/plain; charset="utf-8" Content-ID: <6164CAC24AD57B4B805C29058FDF79F2@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , 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Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 1A01F12940A; Tue, 12 Dec 2017 01:53:47 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: bess@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.67.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <151307242706.20358.5446900059840071767@ietfa.amsl.com> Date: Tue, 12 Dec 2017 01:53:47 -0800 Archived-At: Subject: [bess] I-D Action: draft-ietf-bess-l2l3-vpn-mcast-mib-13.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Dec 2017 09:53:47 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the BGP Enabled ServiceS WG of the IETF. Title : L2L3 VPN Multicast MIB Authors : Zhaohui (Jeffrey) Zhang Hiroshi Tsunoda Filename : draft-ietf-bess-l2l3-vpn-mcast-mib-13.txt Pages : 20 Date : 2017-12-12 Abstract: This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes two MIB modules which will be used by other MIB modules for monitoring and/or configuring Layer 2 and Layer 3 Virtual Private Networks that support multicast. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-bess-l2l3-vpn-mcast-mib/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-bess-l2l3-vpn-mcast-mib-13 https://datatracker.ietf.org/doc/html/draft-ietf-bess-l2l3-vpn-mcast-mib-13 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-l2l3-vpn-mcast-mib-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. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Tue Dec 12 02:24:23 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3DD77129417 for ; Tue, 12 Dec 2017 02:24:22 -0800 (PST) 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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=ieee-org.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 oTU8zbjY1Iev for ; Tue, 12 Dec 2017 02:24:20 -0800 (PST) Received: from mail-qt0-x22b.google.com (mail-qt0-x22b.google.com [IPv6:2607:f8b0:400d:c0d::22b]) (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 EB039129413 for ; Tue, 12 Dec 2017 02:24:19 -0800 (PST) Received: by mail-qt0-x22b.google.com with SMTP id 33so45945373qtv.1 for ; Tue, 12 Dec 2017 02:24:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ieee-org.20150623.gappssmtp.com; s=20150623; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=5tL0ra0HF37X/DcPgZQI6/uNlHusVK9RJG811fXTaRk=; b=EEWnhwpPawdplZPwLdb4R+lvBDIPkZOOP8mUuiDZ9RAhEN9BWWW+mednuVAqPEdrXz nz6+9j/jQOkfswR7dOrZIyaj//LUIF2NljyKe2wAGS676cdZ5Hv9vbARqIF+VfPSmATZ ekahnlvFdyNMz9xg4rdHUZzjxYzV11Ypf6Ma8NP40or6m96JddTHMdK3cAHuSIgQXz8x hxxdldbUYgrLsItXioiSgGah6RbFYRNDI5vwjo/YjUVCPgpyu1jSltTySXZ7d3Rh3Ez7 WNLWta7KSXdR/3pFRn0HUyQ+52He+vBYcF8nKdKNTTqDZV+jtiOUler93UZ1kYGeG6vD b+tg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=5tL0ra0HF37X/DcPgZQI6/uNlHusVK9RJG811fXTaRk=; b=E5UL50qedcSlcnbCYwLa04Dsoc0G3DkU9NEM1irRRSWjTkUlYiIuLd2FzLN3m3kup2 bCngO7EGiKBtD05i/+BdWJsr9l6JQUqcHbdQ9nvxO7myGeUWHuUHNml8JsEZaD8Bj14F 6hZFilyyShkuzNntSJCY6gqUcg+03aFiXOMHoeN5EQhwj2T9mELArT2FNolniPn64RbA 3gnCAOjsuUrcJAY7sHwfsl1DO4QZrsSdydFJNyJImhfIIToWCADJkIWVFPB+w0lamGmb gVjFV1NKlHwisxlt+D3j2sEBDLw7kO7Exwv0JSIYteqlc/8XkFA8mA0iJl10VZ7hmGXE ZrhA== X-Gm-Message-State: AKGB3mK7WaJnLWRRmqSwaPDlAPMdEImAWgE6Xq5Cnub+4wAXnp1NZVQC OK3dJP1+KVx03JqXg8KnFgWA+qf6Ulinh5hPyh6PiQ== X-Google-Smtp-Source: ACJfBos6nJWzKrz1UWXqTdQUxXvRnZwXYJMe/bYdIvfia5mNH3Ng2LRhBGFSWb60R+YgibAzXnoHbyN3EhkJmpkcrvs= X-Received: by 10.55.20.42 with SMTP id e42mr4918190qkh.325.1513074259043; Tue, 12 Dec 2017 02:24:19 -0800 (PST) MIME-Version: 1.0 Sender: dr.h.t@ieee.org Received: by 10.140.86.84 with HTTP; Tue, 12 Dec 2017 02:23:38 -0800 (PST) In-Reply-To: References: From: Hiroshi Tsunoda Date: Tue, 12 Dec 2017 11:23:38 +0100 X-Google-Sender-Auth: 29qX9IBDZzea4mZZWSMF_CtHKBk Message-ID: To: "Glenn M. Keeni" Cc: Mach Chen , mib-doctors@ietf.org, "Jeffrey (Zhaohui) Zhang" , "EXT - thomas.morin@orange.com" , Martin Vigoureux , bess@ietf.org Content-Type: text/plain; charset="UTF-8" Archived-At: Subject: Re: [bess] Update to draft-ietf-bess-l2l3-vpn-mcast-mib-12 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Dec 2017 10:24:22 -0000 Dear Glenn, I have fixed some nits and submitted as new revision. Links to the draft and diff are as follows. URL: https://www.ietf.org/internet-drafts/draft-ietf-bess-l2l3-vpn-mcast-mib-13.txt Htmlized: https://tools.ietf.org/html/draft-ietf-bess-l2l3-vpn-mcast-mib-13 Htmlized: https://datatracker.ietf.org/doc/html/draft-ietf-bess-l2l3-vpn-mcast-mib-13 Diff: https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-l2l3-vpn-mcast-mib-13 Thanks in advance, -- tsuno 2017-11-28 0:09 GMT+01:00 Hiroshi Tsunoda : > Dear Glenn, > > May I ask you to give one more review > for draft-ietf-bess-l2l3-vpn-mcast-mib matter? > I posted a new revision (-12). > In this revision, I have made the following changes > in order to make the MIB simpler and be less > dependent on BGP. > > - Added l2L3VpnMCastPmsiTunnelLeafInfoRequired > object. This object corresponds to > "Leaf Information Required" flag in Flags field. > > - Removed two objects shown below > - l2L3VpnMcastPmsiTunnelAttributeFlags > - l2L3VpnMcastPmsiTunnelAttributeAddlFlags > > - Fixed some editorial issues. > > Links to the draft and diff are as follows. > > URL: > https://www.ietf.org/internet-drafts/draft-ietf-bess-l2l3-vpn-mcast-mib-12.txt > Htmlized: > https://tools.ietf.org/html/draft-ietf-bess-l2l3-vpn-mcast-mib-12 > Htmlized: > https://datatracker.ietf.org/doc/html/draft-ietf-bess-l2l3-vpn-mcast-mib-12 > Diff: > https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-l2l3-vpn-mcast-mib-12 > > Thanks in advance, > > -- tsuno From nobody Thu Dec 14 03:25:24 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D3C33128B37 for ; Thu, 14 Dec 2017 03:25:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, 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=lamehost-it.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 Ju4Kcd8lDe2E for ; Thu, 14 Dec 2017 03:25:20 -0800 (PST) Received: from mail-qk0-x236.google.com (mail-qk0-x236.google.com [IPv6:2607:f8b0:400d:c09::236]) (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 7ECA2128AFE for ; Thu, 14 Dec 2017 03:25:20 -0800 (PST) Received: by mail-qk0-x236.google.com with SMTP id j207so5763549qke.10 for ; Thu, 14 Dec 2017 03:25:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lamehost-it.20150623.gappssmtp.com; s=20150623; h=mime-version:from:date:message-id:subject:to; bh=IOyYmqg+nIjJ9KlTR7izUS5DCvhnLb3BArSnpveJ2nA=; b=F5lgVo5EAgib7Cia0TlItDJv1UO1m9RdIYoru8Rw5s5pYtftFGHu8RbPj1Tbhy/OoI TOk2aTGw5RaMRTCH1PMZAT6KAukaipSv4YdRZFdne8qNNa923X4TtpeWHHYJP99hA1I2 odMkpWJM1GZq/pnQAwnWeavRUYja8rpeios9ViaG2JTS7JpU7MjDMN8eKPXYlOHc8ZKZ WorS+e//DXmsAyv0zrUi1AefbaFhzRVu2vwiks3EPSPkI1a2keH8+YaCl0lElZHp3RdW N9batqnoGsp3c9g/hgOuHvQrGd+ucQlF7Z5WXinCTrKYYx8fiX+8Le27B3CxvxTw8G8k 065Q== 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; bh=IOyYmqg+nIjJ9KlTR7izUS5DCvhnLb3BArSnpveJ2nA=; b=NFdjir3N4SlTHzO9KYVQQbe6LIaxWeU6kKa7YtOrKJ0BXn2TMQ6sTyB/psWMzl7Xhc NODM5eK0KkuVLSifvng5LaUgszb/zo4s6dnJCnUsSVEK4w7CW8dW1cW2X6ieBwV9o44X OIhRuSsYlf193NENiwqsH5ty4GUdVL/FZItvy9peIeSDheZ2jxzl9FbE0PxA7oJ8iH2a aJNd/D9+4+inlKyNr6b7vCU/BlAgHITHjf4/RTF43Lp0mNOQCMFH7KPNrYJSxSQ6654f NvDwEWCZZ7h3Rywwue9YUbmGBEbVlRPcft6UlfgwUbzS+9501xNUC6aukJy1Lpfghv9Z Mdcw== X-Gm-Message-State: AKGB3mJIx1G/yJdS9zc2L02xgfS2nRm0tA9cCr9WO3FU43AfYs78NzOg c1l8hD3RgXiXrJg+1f1XRwnLUhnUDnusBHRos8CitztM X-Google-Smtp-Source: ACJfBosJl7fcoz08LfVmOJ1v7smrBa4LFKLwNWqPVgZFvcOtiEbIRthbxwEV4cjAEI99kLwQtDkBMR3SG9F0FR0Frfg= X-Received: by 10.55.17.140 with SMTP id 12mr15262730qkr.229.1513250719166; Thu, 14 Dec 2017 03:25:19 -0800 (PST) MIME-Version: 1.0 Received: by 10.200.26.105 with HTTP; Thu, 14 Dec 2017 03:25:18 -0800 (PST) From: Marco Marzetti Date: Thu, 14 Dec 2017 12:25:18 +0100 Message-ID: To: bess@ietf.org Content-Type: multipart/alternative; boundary="001a11469fd692851005604b23dc" Archived-At: Subject: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Dec 2017 11:25:23 -0000 --001a11469fd692851005604b23dc Content-Type: text/plain; charset="UTF-8" Dear members of the WG and authors of the draft, I am writing this email asking you to clarify what's the suggested behavior when PMSI Tunnel Type is set to "Ingress Replication" (type 6) as draft-ietf-bess-evpn-overlay-10 only suggests what to do with multicast tunnel trees. I think the originating PE should conform with RFC6514 and RFC7432 (from which you've taken inspiration) and always (RFC2119 MUST) attach PMSI Tunnel attribute with the Tunnel Type set to Ingress Replication and Tunnel Identifier set to a routable address of the PE itself (more specifically NVE's IP address). Is that correct? In that case i suggest to add the following line at the end of Section 9. """ For Ingress Replication the PE should follow what's stated in RFC6514 Section 5 . """ URL to RFC6514 section 5: https://tools.ietf.org/html/rfc6514#section-5 Thank you Regards -- Marco --001a11469fd692851005604b23dc Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Dear members of the WG and authors of the draft,

I am writing this email asking you to clarify what'= ;s the suggested behavior when PMSI Tunnel Type is set to "Ingress Rep= lication" (type 6) as draft-ietf-bess-evpn-overlay-10 only suggests wh= at to do with multicast tunnel trees.

I think the = originating PE should conform with RFC6514 and RFC7432 (from which you'= ve taken inspiration) and always (RFC2119 MUST) attach PMSI Tunnel attribut= e with the Tunnel Type set to Ingress Replication and Tunnel Identifier set= to a routable address of the PE itself (more specifically=C2=A0NVE's IP address).

Is that = correct?
In that case i suggest to add the followin= g line at the end of Section 9.
"""
For = Ingress=C2=A0Replicati= on the PE should follow what's stated in RFC6514 Section 5 .
"""

Thank you

=
Regards

--
Marco
--001a11469fd692851005604b23dc-- From nobody Thu Dec 14 05:15:55 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A6639128D69; Thu, 14 Dec 2017 05:15:53 -0800 (PST) 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 x9xydkTALPcM; Thu, 14 Dec 2017 05:15:51 -0800 (PST) Received: from niseko.cysol.co.jp (niseko.cysol.co.jp [210.233.3.236]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5B6E0124205; Thu, 14 Dec 2017 05:15:51 -0800 (PST) Received: from [192.168.0.93] (cysvpn06.priv.cysol.co.jp [192.168.0.93]) (authenticated bits=0) by aso.priv.cysol.co.jp (8.14.9/8.14.9) with ESMTP id vBEDFgf6054949 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Thu, 14 Dec 2017 22:15:43 +0900 (JST) (envelope-from glenn@cysols.com) To: Hiroshi Tsunoda Cc: Mach Chen , mib-doctors@ietf.org, "Jeffrey (Zhaohui) Zhang" , "EXT - thomas.morin@orange.com" , Martin Vigoureux , bess@ietf.org References: From: Glenn Mansfield Keeni Message-ID: <09aac2fd-28ae-331e-7d6f-0aa6f8309378@cysols.com> Date: Thu, 14 Dec 2017 22:15:37 +0900 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=iso-2022-jp; format=flowed; delsp=yes Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [bess] Update to draft-ietf-bess-l2l3-vpn-mcast-mib-12 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Dec 2017 13:15:53 -0000 Dear Tsuno, Thank you for the good work. All the issues are addressed. I have no further issues with this MIB. I believe the MIB review is complete. Thanks again for the cooperation during this long review period,. Glenn On 2017/12/12 19:23, Hiroshi Tsunoda wrote: > Dear Glenn, > > I have fixed some nits and submitted as new revision. > Links to the draft and diff are as follows. > > URL: > https://www.ietf.org/internet-drafts/draft-ietf-bess-l2l3-vpn-mcast-mib-13.txt > Htmlized: > https://tools.ietf.org/html/draft-ietf-bess-l2l3-vpn-mcast-mib-13 > Htmlized: > https://datatracker.ietf.org/doc/html/draft-ietf-bess-l2l3-vpn-mcast-mib-13 > Diff: > https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-l2l3-vpn-mcast-mib-13 > > Thanks in advance, > > -- tsuno > > 2017-11-28 0:09 GMT+01:00 Hiroshi Tsunoda : >> Dear Glenn, >> >> May I ask you to give one more review >> for draft-ietf-bess-l2l3-vpn-mcast-mib matter? >> I posted a new revision (-12). >> In this revision, I have made the following changes >> in order to make the MIB simpler and be less >> dependent on BGP. >> >> - Added l2L3VpnMCastPmsiTunnelLeafInfoRequired >> object. This object corresponds to >> "Leaf Information Required" flag in Flags field. >> >> - Removed two objects shown below >> - l2L3VpnMcastPmsiTunnelAttributeFlags >> - l2L3VpnMcastPmsiTunnelAttributeAddlFlags >> >> - Fixed some editorial issues. >> >> Links to the draft and diff are as follows. >> >> URL: >> https://www.ietf.org/internet-drafts/draft-ietf-bess-l2l3-vpn-mcast-mib-12.txt >> Htmlized: >> https://tools.ietf.org/html/draft-ietf-bess-l2l3-vpn-mcast-mib-12 >> Htmlized: >> https://datatracker.ietf.org/doc/html/draft-ietf-bess-l2l3-vpn-mcast-mib-12 >> Diff: >> https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-l2l3-vpn-mcast-mib-12 >> >> Thanks in advance, >> >> -- tsuno From nobody Thu Dec 14 05:20:55 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 62395128D69; Thu, 14 Dec 2017 05:20:49 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.92 X-Spam-Level: X-Spam-Status: No, score=-1.92 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); 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Mach, can you check the shepherd write-up and let me know when we are good to go. Thanks -m Le 2017-12-14 à 14:15, Glenn Mansfield Keeni a écrit : > Dear Tsuno, >      Thank you for the good work. > All the issues are addressed. I have > no further issues with this MIB. I > believe the MIB review is complete. > > Thanks again for the cooperation during > this long review period,. > > Glenn > > On 2017/12/12 19:23, Hiroshi Tsunoda wrote: >> Dear Glenn, >> >> I have fixed some nits and submitted as new revision. >> Links to the draft and diff are as follows. >> >> URL: >> >> https://www.ietf.org/internet-drafts/draft-ietf-bess-l2l3-vpn-mcast-mib-13.txt >> >> Htmlized: >>      https://tools.ietf.org/html/draft-ietf-bess-l2l3-vpn-mcast-mib-13 >> Htmlized: >> >> https://datatracker.ietf.org/doc/html/draft-ietf-bess-l2l3-vpn-mcast-mib-13 >> >> Diff: >> >> https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-l2l3-vpn-mcast-mib-13 >> >> Thanks in advance, >> >> -- tsuno >> >> 2017-11-28 0:09 GMT+01:00 Hiroshi Tsunoda : >>> Dear Glenn, >>> >>> May I ask you to give one more review >>> for draft-ietf-bess-l2l3-vpn-mcast-mib matter? >>> I posted a new revision (-12). >>> In this revision, I have made the following changes >>> in order to make the MIB simpler and be less >>> dependent on BGP. >>> >>>   - Added l2L3VpnMCastPmsiTunnelLeafInfoRequired >>>     object. This object corresponds to >>>     "Leaf Information Required" flag  in Flags field. >>> >>>   - Removed two objects shown below >>>       - l2L3VpnMcastPmsiTunnelAttributeFlags >>>       - l2L3VpnMcastPmsiTunnelAttributeAddlFlags >>> >>>   - Fixed some editorial issues. >>> >>> Links to the draft and diff are as follows. >>> >>> URL: >>> >>> https://www.ietf.org/internet-drafts/draft-ietf-bess-l2l3-vpn-mcast-mib-12.txt >>> >>> Htmlized: >>>       https://tools.ietf.org/html/draft-ietf-bess-l2l3-vpn-mcast-mib-12 >>> Htmlized: >>> >>> https://datatracker.ietf.org/doc/html/draft-ietf-bess-l2l3-vpn-mcast-mib-12 >>> >>> Diff: >>> >>> https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-l2l3-vpn-mcast-mib-12 >>> >>> Thanks in advance, >>> >>> -- tsuno > > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess > From nobody Thu Dec 14 05:37:54 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3B521126C83 for ; Thu, 14 Dec 2017 05:37:53 -0800 (PST) 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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=ieee-org.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 z9OI-Yu_HvD9 for ; Thu, 14 Dec 2017 05:37:50 -0800 (PST) Received: from mail-qt0-x229.google.com (mail-qt0-x229.google.com [IPv6:2607:f8b0:400d:c0d::229]) (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 9A74D1252BA for ; Thu, 14 Dec 2017 05:37:50 -0800 (PST) Received: by mail-qt0-x229.google.com with SMTP id d4so7940893qtj.5 for ; Thu, 14 Dec 2017 05:37:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ieee-org.20150623.gappssmtp.com; s=20150623; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=t/5B/Z8XjYU7L3jCXtV//D6aMIFzQpiUvFaIhakQAV8=; b=gl2WJk2OnE2TywXHffrwsZYUksQNxP2bLnSSYtVKTKZNytL9oZR0Wf8QfsBqZ2wYfR r4ftZLxBdK/D0aUFTkH3KpHo9HVHDGT/rE7wXU/16JxJnluNugw4EBR3rDtKyNqoT4uj zN591JVYakyGW5ldEwiONjOBE1T8O5/SNavD7dm+uVF4nUiwLAcpaGQPwe2hkPDDuH3M Pqqfpeepz6TCu7ze1FWhC4Mr7Ob+o+lI5n0vUOAcN8emvLXrfjuMI9Qd4nWajiwSwC+v 6bBsFI0CfXYtgF8WpgMpTYQouwhF2c/E1G5XDZL795qSRxlO/96EwEyCkeN6AiU/lW3/ Wyaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=t/5B/Z8XjYU7L3jCXtV//D6aMIFzQpiUvFaIhakQAV8=; b=Et1hj/t0z6G/lxJ+eFkh6WOU1IVB1nOo1nufXr06omg2SQ33pB8jlC932TgXSqdbc/ r3kAvHoYRBa+X6F4Ce7RHPp5wzK5ALXasWw+cG1M6Q8I5ot7fDkuliVB+MvsQofY66Pa XjP9S8r95CLfLOQIcrvmxJ0PrsdaVvv23uiC9ggDeFc+/QrNmePK9MULp85cGwnh6De5 4+EdFnce0AWBvgSCBZhC6rDmwyUThrFJ3rIUUFcKdES2+/AZ8W0ZLv9z0vKTITJNVYpv fpYEJ2sWDcIXl6UpSoZlhK58PuG8ukbRssrnOLOsTWqiY7d5DAlsFB/P5R/QboWcEQwa 3/gw== X-Gm-Message-State: AKGB3mJXhVtjEgfxPXUjs2nPMLBV5Lg1CIraQb58uJ/ONEL7/qH7IAMx /S2tG0CYndPa+dUxU7m5HdnHnfxBgk05GW6yMTwOFw== X-Google-Smtp-Source: ACJfBotbNDX47mygCdmVEcR5BPQ9A0oWWWOgrld5zfp/f/0h6sYpHpsDNHo3o78YuYGrd6l/6AJXwIoheKcsJkqmMY8= X-Received: by 10.237.56.68 with SMTP id j62mr16720807qte.33.1513258669526; Thu, 14 Dec 2017 05:37:49 -0800 (PST) MIME-Version: 1.0 Sender: dr.h.t@ieee.org Received: by 10.140.86.84 with HTTP; Thu, 14 Dec 2017 05:37:09 -0800 (PST) In-Reply-To: <09aac2fd-28ae-331e-7d6f-0aa6f8309378@cysols.com> References: <09aac2fd-28ae-331e-7d6f-0aa6f8309378@cysols.com> From: Hiroshi Tsunoda Date: Thu, 14 Dec 2017 14:37:09 +0100 X-Google-Sender-Auth: cCALpmHTftJN1SE6-cnhvmKu4n4 Message-ID: To: Glenn Mansfield Keeni Cc: Mach Chen , mib-doctors@ietf.org, "Jeffrey (Zhaohui) Zhang" , Martin Vigoureux , bess@ietf.org, stephane.litkowski@orange.com Content-Type: text/plain; charset="UTF-8" Archived-At: Subject: Re: [bess] Update to draft-ietf-bess-l2l3-vpn-mcast-mib-12 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Dec 2017 13:37:53 -0000 Dear Glenn, Thank you very much for your elaborate review and advice. I am very glad to know that all issues are addressed. I appreciate if you would give continuous support also for another draft. Best regards, -- tsuno 2017-12-14 14:15 GMT+01:00 Glenn Mansfield Keeni : > Dear Tsuno, > Thank you for the good work. > All the issues are addressed. I have > no further issues with this MIB. I > believe the MIB review is complete. > > Thanks again for the cooperation during > this long review period,. > > Glenn > > > On 2017/12/12 19:23, Hiroshi Tsunoda wrote: >> >> Dear Glenn, >> >> I have fixed some nits and submitted as new revision. >> Links to the draft and diff are as follows. >> >> URL: >> >> https://www.ietf.org/internet-drafts/draft-ietf-bess-l2l3-vpn-mcast-mib-13.txt >> Htmlized: >> https://tools.ietf.org/html/draft-ietf-bess-l2l3-vpn-mcast-mib-13 >> Htmlized: >> >> https://datatracker.ietf.org/doc/html/draft-ietf-bess-l2l3-vpn-mcast-mib-13 >> Diff: >> >> https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-l2l3-vpn-mcast-mib-13 >> >> Thanks in advance, >> >> -- tsuno >> >> 2017-11-28 0:09 GMT+01:00 Hiroshi Tsunoda : >>> >>> Dear Glenn, >>> >>> May I ask you to give one more review >>> for draft-ietf-bess-l2l3-vpn-mcast-mib matter? >>> I posted a new revision (-12). >>> In this revision, I have made the following changes >>> in order to make the MIB simpler and be less >>> dependent on BGP. >>> >>> - Added l2L3VpnMCastPmsiTunnelLeafInfoRequired >>> object. This object corresponds to >>> "Leaf Information Required" flag in Flags field. >>> >>> - Removed two objects shown below >>> - l2L3VpnMcastPmsiTunnelAttributeFlags >>> - l2L3VpnMcastPmsiTunnelAttributeAddlFlags >>> >>> - Fixed some editorial issues. >>> >>> Links to the draft and diff are as follows. >>> >>> URL: >>> >>> https://www.ietf.org/internet-drafts/draft-ietf-bess-l2l3-vpn-mcast-mib-12.txt >>> Htmlized: >>> https://tools.ietf.org/html/draft-ietf-bess-l2l3-vpn-mcast-mib-12 >>> Htmlized: >>> >>> https://datatracker.ietf.org/doc/html/draft-ietf-bess-l2l3-vpn-mcast-mib-12 >>> Diff: >>> >>> https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-l2l3-vpn-mcast-mib-12 >>> >>> Thanks in advance, >>> >>> -- tsuno > > From nobody Thu Dec 14 05:39:42 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C99031250B8 for ; Thu, 14 Dec 2017 05:39:40 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.215 X-Spam-Level: X-Spam-Status: No, score=0.215 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_BRBL_LASTEXT=1.449, SPF_SOFTFAIL=0.665] autolearn=no 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 eXIFM7XzFTc8 for ; Thu, 14 Dec 2017 05:39:39 -0800 (PST) Received: from p-mail2.rd.orange.com (p-mail2.rd.orange.com [161.106.1.3]) by ietfa.amsl.com (Postfix) with ESMTP id 6FE80124205 for ; Thu, 14 Dec 2017 05:39:39 -0800 (PST) Received: from p-mail2.rd.orange.com (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id ABFBFE30098; Thu, 14 Dec 2017 14:39:38 +0100 (CET) Received: from FTRDCH01.rd.francetelecom.fr (unknown [10.194.32.11]) by p-mail2.rd.orange.com (Postfix) with ESMTP id 92038E30097; Thu, 14 Dec 2017 14:39:38 +0100 (CET) Received: from l-fipglop (10.193.71.131) by FTRDCH01.rd.francetelecom.fr (10.194.32.11) with Microsoft SMTP Server id 14.3.361.1; Thu, 14 Dec 2017 14:39:38 +0100 Message-ID: <1513258777.30252.11.camel@orange.com> From: Thomas Morin To: Marco Marzetti , Date: Thu, 14 Dec 2017 14:39:37 +0100 In-Reply-To: References: Organization: Orange S.A. Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.3-1 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Dec 2017 13:39:41 -0000 Hi Marco, Marco Marzetti, 2017-12-14 12:25: > I am writing this email asking you to clarify what's the suggested > behavior when PMSI Tunnel Type is set to "Ingress Replication" (type > 6) as draft-ietf-bess-evpn-overlay-10 only suggests what to do with > multicast tunnel trees. > > I think the originating PE should conform with RFC6514 and RFC7432 > (from which you've taken inspiration) and always (RFC2119 MUST) > attach PMSI Tunnel attribute with the Tunnel Type set to Ingress > Replication and Tunnel Identifier set to a routable address of the PE > itself (more specifically NVE's IP address). > > Is that correct? > In that case i suggest to add the following line at the end of > Section 9. > """ > For Ingress Replication the PE should follow what's stated in RFC6514 > Section 5 . > """ The text of section 9 lists "Ingress Replication" in the list of tunnel types that can be used. My understanding is that, in the absence of anything being specifically said for Ingress Replication, an implementation should follow what is said in RFC7432 and RFC6514. (What other specs could it follow to implement this supported type ? RFC7432 and RFC6514 are more than an inspiration here, these are specs that the document refers to explicitly) So I'm not sure that it is useful or needed to add text. Can you perhaps expand on why the current text would possibly be ambiguous, misleading or incomplete...? -Thomas From nobody Thu Dec 14 06:20:40 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5C3AC1200CF for ; Thu, 14 Dec 2017 06:20:39 -0800 (PST) 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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=lamehost-it.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 087134y3hMhl for ; Thu, 14 Dec 2017 06:20:36 -0800 (PST) Received: from mail-qt0-x236.google.com (mail-qt0-x236.google.com [IPv6:2607:f8b0:400d:c0d::236]) (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 4F1BB12420B for ; Thu, 14 Dec 2017 06:20:36 -0800 (PST) Received: by mail-qt0-x236.google.com with SMTP id g10so8050808qtj.12 for ; Thu, 14 Dec 2017 06:20:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lamehost-it.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=6Nkg2LzRX3Mwg8EBcu9qFIaVUVevZhTC59L+ajOHuFo=; b=lwNKOjQ+t2Yla4CnEvQdTrSwwX25G82/7Ik+d4+AaI39tjvu7PXHxSLlmnN3+n1Tju 4ARRzOIhyRVxS5+RF4DTCUjOBZrBEUSravfogCW58qNGSbHcN9sSIybUDpCZ16lNfsVy vB/MepMkhFysLYxUoF9xogS/9Hc6MkWKq53Jy4WFuRti8b7wNJSnviIRqqIKAW3grimy 4hARrxfTaxYZq9iPGEb0+/lEobNnJl0kn2PiMPn8Lqghlm4O9dVVeaq+X8EwlIZmoS8i sE+vghIBD//JH+M8TL8G18bFMadzhen3VsdUmYVhq1AmBJ0Eu18CsiFGacnM5/KRj8Eg C07A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=6Nkg2LzRX3Mwg8EBcu9qFIaVUVevZhTC59L+ajOHuFo=; b=KE9aVehwCOpkNigFQ+SND63Arl9cNgn5s/tKQpvFfCqEZLglL3nwM3neFFxfpo2qr+ lshVJCkwTgpvju31LPPzG5PFB/99DwdMs02+0llTyKw4D0Et0Rsb7FM2Ayd2yH6CHMzF bE7TuJto9Fttrc8r9xynrV2y9Sb4IXVCPPO45Bfbgj3zG8PiYLGglezNMAl6OBdU4D3O DEY++54QJAQXudP8rXVsnfP6y1Qlh0Cj67I2sBvbos12YXJGwzRcfZ0iuMSgGQzJTAbE Bjx6IqmSsEWg2Dz5pVlrfY1S4xNhC+qBCnKWjtVQjArYAw/VZ1GQmSmLo5eKbfK4elZ1 Pcug== X-Gm-Message-State: AKGB3mJG5/lAb2/KtG1qHkIfByn+Tb3TJHa2xbcYs2LItNnOGhXCYyFl 5qxxs8Hidb1KqV28NA8VmCQegvfftfy4kani53TMLg== X-Google-Smtp-Source: ACJfBovxDsdHiWOqIS+geize34StfTt60MstMULIR0/kT3tzIU1rOJgdUjUk4dD6tGc0khHz/IJbWk375cQ0CgObRbE= X-Received: by 10.200.58.231 with SMTP id x94mr15637627qte.245.1513261235023; Thu, 14 Dec 2017 06:20:35 -0800 (PST) MIME-Version: 1.0 Received: by 10.200.26.105 with HTTP; Thu, 14 Dec 2017 06:20:34 -0800 (PST) In-Reply-To: <1513258777.30252.11.camel@orange.com> References: <1513258777.30252.11.camel@orange.com> From: Marco Marzetti Date: Thu, 14 Dec 2017 15:20:34 +0100 Message-ID: To: Thomas Morin Cc: bess@ietf.org Content-Type: multipart/alternative; boundary="94eb2c1254c85dcab405604d9684" Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Dec 2017 14:20:39 -0000 --94eb2c1254c85dcab405604d9684 Content-Type: text/plain; charset="UTF-8" Hello, I have encountered an implementation that is not attaching any PMSI to the IMET. The authors think they don't really need it because they only support Ingress Replication. Such behavior breaks interoperability with other implementations that are dropping the NLRI if PMSI is not attached. So i looked at draft-ietf-bess-evpn-overlay-10 and noticed that there's no clear indication of what the proper behavior is. As said i assumed i had to look at RFC7432 and RFC6514 (and i did it), but i wasn't 100% sure and i preferred to ask. Onestly you already made my day by confirming what i thought. My suggestion was to make things more clear, but i admit that it could look redundant. Thanks On Thu, Dec 14, 2017 at 2:39 PM, Thomas Morin wrote: > Hi Marco, > > Marco Marzetti, 2017-12-14 12:25: > > I am writing this email asking you to clarify what's the suggested > > behavior when PMSI Tunnel Type is set to "Ingress Replication" (type > > 6) as draft-ietf-bess-evpn-overlay-10 only suggests what to do with > > multicast tunnel trees. > > > > I think the originating PE should conform with RFC6514 and RFC7432 > > (from which you've taken inspiration) and always (RFC2119 MUST) > > attach PMSI Tunnel attribute with the Tunnel Type set to Ingress > > Replication and Tunnel Identifier set to a routable address of the PE > > itself (more specifically NVE's IP address). > > > > Is that correct? > > In that case i suggest to add the following line at the end of > > Section 9. > > """ > > For Ingress Replication the PE should follow what's stated in RFC6514 > > Section 5 . > > """ > > The text of section 9 lists "Ingress Replication" in the list of tunnel > types that can be used. My understanding is that, in the absence of > anything being specifically said for Ingress Replication, an > implementation should follow what is said in RFC7432 and RFC6514. (What > other specs could it follow to implement this supported type ? RFC7432 > and RFC6514 are more than an inspiration here, these are specs that the > document refers to explicitly) > > So I'm not sure that it is useful or needed to add text. > > Can you perhaps expand on why the current text would possibly be > ambiguous, misleading or incomplete...? > > -Thomas > > -- Marco --94eb2c1254c85dcab405604d9684 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello,

I have encountered an implementa= tion that is not attaching any PMSI to the IMET.
The authors thin= k=C2=A0they=C2=A0don't really need it because=C2=A0they only= support Ingress Replication.
Such behavior breaks interoperabili= ty with other implementations that are dropping the NLRI if PMSI is not att= ached.

So i looked at=C2=A0draft-ietf-bess-evpn-ov= erlay-10 and noticed that there's no clear indication of what the prope= r behavior is.
As said i assumed i had to look at=C2=A0RFC7432 and RFC6514 (and i did it), but i wasn't= 100% sure and i preferred=C2=A0to ask.

Onest= ly you already made my day by confirming what i thought.
<= span style=3D"font-size:12.8px">My suggestion was to make things more clear= , but i admit that it could look redundant.

T= hanks




=



On Thu, Dec 14, 2017 at 2:39 PM, Thoma= s Morin <thomas.morin@orange.com> wrote:
Hi Marco,

Marco Marzetti, 2017-12-14 12:25:
> I am writing this email asking you to clarify what= 9;s the suggested
> behavior when PMSI Tunnel Type is set to "Ingress Replication&quo= t; (type
> 6) as draft-ietf-bess-evpn-overlay-10 only suggests what to do wi= th
> multicast tunnel trees.
>
> I think the originating PE should conform with RFC6514 and RFC7432
> (from which you've taken inspiration) and always (RFC2119 MUST) > attach PMSI Tunnel attribute with the Tunnel Type set to Ingress
> Replication and Tunnel Identifier set to a routable address of the PE<= br> > itself (more specifically NVE's IP address).
>
> Is that correct?
> In that case i suggest to add the following line at the end of
> Section 9.
> """
> For Ingress Replication the PE should follow what's stated in RFC6= 514
> Section 5 .
> """

The text of section 9 lists "Ingress Replication" in the l= ist of tunnel
types that can be used. My understanding is that, in the absence of
anything being specifically said for Ingress Replication, an
implementation should follow what is said in RFC7432 and RFC6514. (What
other specs could it follow to implement this supported type ? RFC7432
and RFC6514 are more than an inspiration here, these are specs that the
document refers to explicitly)

So I'm not sure that it is useful or needed to add text.

Can you perhaps expand on why the current text would possibly be
ambiguous, misleading or incomplete...?

-Thomas




--
Marco
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Sajassi (sajassi)" To: Marco Marzetti , Thomas Morin CC: "bess@ietf.org" Thread-Topic: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication Thread-Index: AQHTdM5AxSlRFluwPkmVHdFfkfBaX6NDLCyAgAALcQD//74qAA== Date: Thu, 14 Dec 2017 18:24:59 +0000 Message-ID: <003CD803-EAB8-47F4-B36D-2E3CD6F8E9A4@cisco.com> References: <1513258777.30252.11.camel@orange.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.29.0.171205 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.32.222.43] Content-Type: multipart/alternative; boundary="_000_003CD803EAB847F4B36D2E3CD6F8E9A4ciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list 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L3A+DQo8ZGl2Pg0KPHAgY2xhc3M9Ik1zb05vcm1hbCI+TWFyY288bzpwPjwvbzpwPjwvcD4NCjwv ZGl2Pg0KPC9kaXY+DQo8L2Rpdj4NCjwvYm9keT4NCjwvaHRtbD4NCg== --_000_AT5PR8401MB0353B2B69B6F8D292FFB268BF60A0AT5PR8401MB0353_-- From nobody Fri Dec 15 02:42:32 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 584BA1271FD for ; Fri, 15 Dec 2017 02:42:30 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.534 X-Spam-Level: X-Spam-Status: No, score=-2.534 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, FREEMAIL_REPLY=1, RCVD_IN_DNSWL_MED=-2.3, SPF_SOFTFAIL=0.665] 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 acXjBRMoVhKX for ; Fri, 15 Dec 2017 02:42:27 -0800 (PST) Received: from r-mail2.rd.orange.com (r-mail2.rd.orange.com [217.108.152.42]) by ietfa.amsl.com (Postfix) with ESMTP id D75471201F8 for ; Fri, 15 Dec 2017 02:42:26 -0800 (PST) Received: from r-mail2.rd.orange.com (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id 71DA05D8B1C; Fri, 15 Dec 2017 11:42:25 +0100 (CET) Received: from FTRDCH01.rd.francetelecom.fr (unknown [10.194.32.11]) by r-mail2.rd.orange.com (Postfix) with ESMTP id 571B65D8B18; Fri, 15 Dec 2017 11:42:25 +0100 (CET) Received: from l-fipglop (10.193.71.131) by FTRDCH01.rd.francetelecom.fr (10.194.32.11) with Microsoft SMTP Server id 14.3.361.1; Fri, 15 Dec 2017 11:42:24 +0100 Message-ID: <1513334544.6588.9.camel@orange.com> From: Thomas Morin To: "Fedyk, Don" , Marco Marzetti CC: "bess@ietf.org" Date: Fri, 15 Dec 2017 11:42:24 +0100 In-Reply-To: References: <1513258777.30252.11.camel@orange.com> Organization: Orange S.A. Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.3-1 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Dec 2017 10:42:30 -0000 Hi Don, Fedyk, Don, 2017-12-14 20:33: > I think the gray area is that this draft talks about BUM traffic and > ingress replication and then has a section on Multicast tunnels which > excludes ingress replication traffic from the tunnels. No, ingress replication is not excluded at all: The following tunnel types as defined in [RFC6514] can be used in the PMSI tunnel attribute for VXLAN/NVGRE: + 3 - PIM-SSM Tree + 4 - PIM-SM Tree + 5 - BIDIR-PIM Tree + 6 - Ingress Replication > If you are using point to point VXLAN/NVGRE tunnels then ingress > replication is default [...] This formulation surprises me: that some implementations behave as you describe is possibly true (this seems to be the case of the implementation that triggered this discussion), but I don't know about any text in the specs we are discussing that would imply such a 'default'. You might have implementations that in the absence of any local configuration for an EVPN instance on which type of tunnel to use for BUM, will default to ingress replication: this is fine, out of the scope of what is specified for interop, and not breaking other implementations (as long, of course, that what is chosen locally is then advertised as expected in a PMSI Tunnel Attribute). > but IMET is being used to identify the NVE IP. I read RFC7432 and > RFC6514 in this area and thought that the PMSI attribute MUST be set > when there is an Inclusive Multicast Ethernet tag IMET. Yes! (the text of RFC7432 quoted by Ali reminds us that) > I can see two possible fixes: > - Specify that the PMSI attribute MUST be set if there is an > IMET route and specify correct attribute. Given the content of RFC7432 and the fact that this is a normative ref of draft-ietf-bess-evpn-overlay, I think that we don't need to repeat this MUST in draft-ietf-bess-evpn-overlay. That is, unless we explicitly identify an ambiguous piece of text. > - Allow that ingress replication is default when PMSI is > absent but accept PMSI that specifies ingress replication. > I don't think we should do that. It would overnight make non-compliant pre-standard implementation of draft-ietf-bess-evpn-overlay, without a rationale to do so except coping with an implementation that assumed a bit too much. Best, -Thomas > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Marco Marzetti > Sent: Thursday, December 14, 2017 9:21 AM > To: Thomas Morin > Cc: bess@ietf.org > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress > Replication > > Hello, > > I have encountered an implementation that is not attaching any PMSI > to the IMET. > The authors think they don't really need it because they only support > Ingress Replication. > Such behavior breaks interoperability with other implementations that > are dropping the NLRI if PMSI is not attached. > > So i looked at draft-ietf-bess-evpn-overlay-10 and noticed that > there's no clear indication of what the proper behavior is. > As said i assumed i had to look at RFC7432 and RFC6514 (and i did > it), but i wasn't 100% sure and i preferred to ask. > > Onestly you already made my day by confirming what i thought. > My suggestion was to make things more clear, but i admit that it > could look redundant. > > Thanks > > > > > > > > On Thu, Dec 14, 2017 at 2:39 PM, Thomas Morin m> wrote: > > Hi Marco, > > > > Marco Marzetti, 2017-12-14 12:25: > > > I am writing this email asking you to clarify what's the > > suggested > > > behavior when PMSI Tunnel Type is set to "Ingress Replication" > > (type > > > 6) as draft-ietf-bess-evpn-overlay-10 only suggests what to do > > with > > > multicast tunnel trees. > > > > > > I think the originating PE should conform with RFC6514 and > > RFC7432 > > > (from which you've taken inspiration) and always (RFC2119 MUST) > > > attach PMSI Tunnel attribute with the Tunnel Type set to Ingress > > > Replication and Tunnel Identifier set to a routable address of > > the PE > > > itself (more specifically NVE's IP address). > > > > > > Is that correct? > > > In that case i suggest to add the following line at the end of > > > Section 9. > > > """ > > > For Ingress Replication the PE should follow what's stated in > > RFC6514 > > > Section 5 . > > > """ > > > > The text of section 9 lists "Ingress Replication" in the list of > > tunnel > > types that can be used. My understanding is that, in the absence of > > anything being specifically said for Ingress Replication, an > > implementation should follow what is said in RFC7432 and RFC6514. > > (What > > other specs could it follow to implement this supported type ? > > RFC7432 > > and RFC6514 are more than an inspiration here, these are specs that > > the > > document refers to explicitly) > > > > So I'm not sure that it is useful or needed to add text. > > > > Can you perhaps expand on why the current text would possibly be > > ambiguous, misleading or incomplete...? > > > > -Thomas > > > > > > -- > Marco From nobody Fri Dec 15 03:42:10 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B9121127977 for ; Fri, 15 Dec 2017 03:42:08 -0800 (PST) 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, WEIRD_QUOTING=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=lamehost-it.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 1X_znkCZDCor for ; Fri, 15 Dec 2017 03:42:05 -0800 (PST) Received: from mail-qt0-x236.google.com (mail-qt0-x236.google.com [IPv6:2607:f8b0:400d:c0d::236]) (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 7A06E126557 for ; Fri, 15 Dec 2017 03:42:05 -0800 (PST) Received: by mail-qt0-x236.google.com with SMTP id r39so11624378qtr.13 for ; Fri, 15 Dec 2017 03:42:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lamehost-it.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=DXwIdKZmAfyZQiEOyRrC0fQAo/Pi3TSWxbqxjH1jk4M=; b=EMS5BnvJd6lXLGHa3R02ShPIjCPLuk32oyR1lwK/hGjuBKc1xob77wYnFZTZ+UZkUr IPkOKShY6OfIXSz4whXQky3ajCB+NhgH0lWMk/W1cM8LVjhQqgPj1s12ctlXXiTooIOm XCFxsOYAJb1iFPxvKmeKchRYHbQutmY9bz3lxnTh/7VfNb4UIh3C5fBWqsebrCsNX2a1 bnDsxdyvr1Ox00Gm8mGrjYlmWyKFUzUc1+4we61ndqD6RHKlvWhMEMR0gFDxFtjco+QA ATE0u3AWybmDKTpkriBz5GDibSuoHKi7ytSy0736P35RneYmIOYb0qToiZyXR5Ypykb0 OKkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=DXwIdKZmAfyZQiEOyRrC0fQAo/Pi3TSWxbqxjH1jk4M=; b=dyjAoz0H3jAVCGSYvt6zEuTjzsS6a0l18ysKkZuSV6N4rXleqSIjZSK3aR1a84Bzwq uAKZK+LwhHym59eg9K8yTebgaGFXYtrzR273BpHuXwKj7qD3ZgEWmCCJcMl4UeOc78W5 IyK631aPZt3IdQrnQ2hBqs6Dd/dvRWDmm+CCajn2BUvS5Co3y8Efeaxp1AyOk2yfpfzu Snpu/Sm926maS561wbp80SWBTYGusojSJGAyloFH1+10tUk/LMmHkGx1OXsDD4Kj/pBC 1I5z3ynYOFXTOD73wHFgyatsa7ATVHEfnxxgmqld7SNMx/yi26IFn+bASoXEbTef8wD5 oa8A== X-Gm-Message-State: AKGB3mL3Tnx/q5eX5vzT8fkteIw7e3i3v3wcbs/0Hxz5tqyH/O6WjZDM Ndvh/GwqAfe6Q57SNauETApou6/e+0kaTL7jeR8r2g4u X-Google-Smtp-Source: ACJfBosMkYkZjNUPJQmZCwBcvJlUDHA1CASj485l6kZgqkTuBNGSwHkpE2E5+1sthxYcrGKHsAJ+wNcTCd8v3IADFFo= X-Received: by 10.200.6.4 with SMTP id d4mr21362371qth.15.1513338124441; Fri, 15 Dec 2017 03:42:04 -0800 (PST) MIME-Version: 1.0 Received: by 10.200.26.105 with HTTP; Fri, 15 Dec 2017 03:42:04 -0800 (PST) In-Reply-To: <1513334544.6588.9.camel@orange.com> References: <1513258777.30252.11.camel@orange.com> <1513334544.6588.9.camel@orange.com> From: Marco Marzetti Date: Fri, 15 Dec 2017 12:42:04 +0100 Message-ID: To: Thomas Morin Cc: "Fedyk, Don" , "bess@ietf.org" Content-Type: multipart/alternative; boundary="f403043afcb45533eb05605f7d20" Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Dec 2017 11:42:09 -0000 --f403043afcb45533eb05605f7d20 Content-Type: text/plain; charset="UTF-8" Hello, My comments as #MARCO. On Fri, Dec 15, 2017 at 11:42 AM, Thomas Morin wrote: > Hi Don, > > Fedyk, Don, 2017-12-14 20:33: > > I think the gray area is that this draft talks about BUM traffic and > > ingress replication and then has a section on Multicast tunnels which > > excludes ingress replication traffic from the tunnels. > > No, ingress replication is not excluded at all: > > The following tunnel types as defined in [RFC6514] can be used in > the PMSI tunnel attribute for VXLAN/NVGRE: > > + 3 - PIM-SSM Tree > + 4 - PIM-SM Tree > + 5 - BIDIR-PIM Tree > + 6 - Ingress Replication > #MARCO. Agreed that Ingress Replicaiton is cited here, but there's no reference in the paragraphs down to the end of the section. """ Except for Ingress Replication, .... """" I am not saying that the draft is necessarily unclear or it's missing something and I don't know if developers of the non-conforming implementation simply overlooked or totally mis-interpreted that part, but the fact is they got it wrong. I sent them a copy of your last emails, i am confident that they will amend their code as suggested. > > > If you are using point to point VXLAN/NVGRE tunnels then ingress > > replication is default [...] > > This formulation surprises me: that some implementations behave as you > describe is possibly true (this seems to be the case of the > implementation that triggered this discussion), but I don't know about > any text in the specs we are discussing that would imply such a > 'default'. > > You might have implementations that in the absence of any local > configuration for an EVPN instance on which type of tunnel to use for > BUM, will default to ingress replication: this is fine, out of the > scope of what is specified for interop, and not breaking other > implementations (as long, of course, that what is chosen locally is > then advertised as expected in a PMSI Tunnel Attribute). > > > > but IMET is being used to identify the NVE IP. I read RFC7432 and > > RFC6514 in this area and thought that the PMSI attribute MUST be set > > when there is an Inclusive Multicast Ethernet tag IMET. > > Yes! (the text of RFC7432 quoted by Ali reminds us that) > > > > I can see two possible fixes: > > - Specify that the PMSI attribute MUST be set if there is an > > IMET route and specify correct attribute. > > Given the content of RFC7432 and the fact that this is a normative ref > of draft-ietf-bess-evpn-overlay, I think that we don't need to repeat > this MUST in draft-ietf-bess-evpn-overlay. That is, unless we > explicitly identify an ambiguous piece of text. > > > - Allow that ingress replication is default when PMSI is > > absent but accept PMSI that specifies ingress replication. > > > > I don't think we should do that. It would overnight make non-compliant > pre-standard implementation of draft-ietf-bess-evpn-overlay, without a > rationale to do so except coping with an implementation that assumed a > bit too much. > #MARCO Agreed. If their behavior is wrong we should ask them to fix it instead of seconding what they're doing. > > Best, > > -Thomas > > > > > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Marco Marzetti > > Sent: Thursday, December 14, 2017 9:21 AM > > To: Thomas Morin > > Cc: bess@ietf.org > > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress > > Replication > > > > Hello, > > > > I have encountered an implementation that is not attaching any PMSI > > to the IMET. > > The authors think they don't really need it because they only support > > Ingress Replication. > > Such behavior breaks interoperability with other implementations that > > are dropping the NLRI if PMSI is not attached. > > > > So i looked at draft-ietf-bess-evpn-overlay-10 and noticed that > > there's no clear indication of what the proper behavior is. > > As said i assumed i had to look at RFC7432 and RFC6514 (and i did > > it), but i wasn't 100% sure and i preferred to ask. > > > > Onestly you already made my day by confirming what i thought. > > My suggestion was to make things more clear, but i admit that it > > could look redundant. > > > > Thanks > > > > > > > > > > > > > > > > On Thu, Dec 14, 2017 at 2:39 PM, Thomas Morin > m> wrote: > > > Hi Marco, > > > > > > Marco Marzetti, 2017-12-14 12:25: > > > > I am writing this email asking you to clarify what's the > > > suggested > > > > behavior when PMSI Tunnel Type is set to "Ingress Replication" > > > (type > > > > 6) as draft-ietf-bess-evpn-overlay-10 only suggests what to do > > > with > > > > multicast tunnel trees. > > > > > > > > I think the originating PE should conform with RFC6514 and > > > RFC7432 > > > > (from which you've taken inspiration) and always (RFC2119 MUST) > > > > attach PMSI Tunnel attribute with the Tunnel Type set to Ingress > > > > Replication and Tunnel Identifier set to a routable address of > > > the PE > > > > itself (more specifically NVE's IP address). > > > > > > > > Is that correct? > > > > In that case i suggest to add the following line at the end of > > > > Section 9. > > > > """ > > > > For Ingress Replication the PE should follow what's stated in > > > RFC6514 > > > > Section 5 . > > > > """ > > > > > > The text of section 9 lists "Ingress Replication" in the list of > > > tunnel > > > types that can be used. My understanding is that, in the absence of > > > anything being specifically said for Ingress Replication, an > > > implementation should follow what is said in RFC7432 and RFC6514. > > > (What > > > other specs could it follow to implement this supported type ? > > > RFC7432 > > > and RFC6514 are more than an inspiration here, these are specs that > > > the > > > document refers to explicitly) > > > > > > So I'm not sure that it is useful or needed to add text. > > > > > > Can you perhaps expand on why the current text would possibly be > > > ambiguous, misleading or incomplete...? > > > > > > -Thomas > > > > > > > > > > > -- > > Marco > -- Marco --f403043afcb45533eb05605f7d20 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello,

My comments as #MARCO.

On Fri, Dec 15, 2017 = at 11:42 AM, Thomas Morin <thomas.morin@orange.com> wr= ote:
Hi Don,

Fedyk, Don, 2017-12-14 20:33:
> I think the gray area is that this draft talks = about BUM traffic and
> ingress replication and then has a section on Multicast tunnels which<= br> > excludes ingress replication traffic from the tunnels.

No, ingress replication is not excluded at all:

=C2=A0 =C2=A0The following tunnel types as defined in [RFC6514] can be used= in
=C2=A0 =C2=A0the PMSI tunnel attribute for VXLAN/NVGRE:

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0+ 3 - PIM-SSM Tree
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0+ 4 - PIM-SM Tree
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0+ 5 - BIDIR-PIM Tree
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0+ 6 - Ingress Replication


#MARCO.
Agreed that Ingress R= eplicaiton is cited here, but there's no reference in the paragraphs do= wn to the end of the section.

"""
Except for Ingress Replication, ....
""&qu= ot;"

I am not saying that the draft is necess= arily unclear or it's missing something and I don't know if develop= ers of the non-conforming implementation simply overlooked or totally mis-i= nterpreted that part, but the fact is they got it wrong.
I sent t= hem a copy of your last emails, i am confident that they will amend their c= ode as suggested.
=C2=A0

> If you are using point to point VXLAN/NVGRE=C2=A0 tunnels then ingress=
> replication is default [...]

This formulation surprises me: that some implementations behave as you
describe is possibly true (this seems to be the case of the
implementation that triggered this discussion), but I don't know about<= br> any text in the specs we are discussing that would imply such a
'default'.

You might have implementations that in the absence of any local
configuration for an EVPN instance on which type of tunnel to use for
BUM, will default to ingress replication: this is fine, out of the
scope of what is specified for interop, and not breaking other
implementations (as long, of course, that what is chosen locally is
then advertised as expected in a PMSI Tunnel Attribute).


> but IMET is being used to identify the NVE IP.=C2=A0 =C2=A0 I read RFC= 7432 and
> RFC6514 in this area and thought that the PMSI attribute MUST be set > when there is an Inclusive Multicast Ethernet tag IMET.

Yes!=C2=A0 (the text of RFC7432 quoted by Ali reminds us that)


> I can see two possible fixes:
> -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Specify that the PMSI attribute MU= ST be set if there is an
> IMET route and specify correct attribute.

Given the content of RFC7432 and the fact that this is a normative r= ef
of draft-ietf-bess-evpn-overlay, I think that we don't need to repeat this MUST in draft-ietf-bess-evpn-overlay.=C2=A0 That is, unless we
explicitly identify an ambiguous piece of text.

> -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Allow that ingress replication is = default when PMSI is
> absent but accept PMSI that specifies ingress replication.
>

I don't think we should do that. It would overnight make non-com= pliant
pre-standard implementation of draft-ietf-bess-evpn-overlay, without a
rationale to do so except coping with an implementation that assumed a
bit too much.


#MARCO
Agreed.
If their behavior is wrong we should ask them to f= ix it instead of seconding what they're doing.

=C2=A0

Best,

-Thomas



> From: BESS [mailto:bess-bounc= es@ietf.org] On Behalf Of Marco Marzetti
> Sent: Thursday, December 14, 2017 9:21 AM
> To: Thomas Morin <thomas= .morin@orange.com>
> Cc: bess@ietf.org
> Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ing= ress
> Replication
>
> Hello,
>
> I have encountered an implementation that is not attaching any PMSI > to the IMET.
> The authors think they don't really need it because they only supp= ort
> Ingress Replication.
> Such behavior breaks interoperability with other implementations that<= br> > are dropping the NLRI if PMSI is not attached.
>
> So i looked at draft-ietf-bess-evpn-overlay-10 and noticed that > there's no clear indication of what the proper behavior is.
> As said i assumed i had to look at RFC7432 and RFC6514 (and i did
> it), but i wasn't 100% sure and i preferred to ask.
>
> Onestly you already made my day by confirming what i thought.
> My suggestion was to make things more clear, but i admit that it
> could look redundant.
>
> Thanks
>
>
>
>
>
>
>
> On Thu, Dec 14, 2017 at 2:39 PM, Thomas Morin <thomas.morin@orange.co
> m> wrote:
> > Hi Marco,
> >
> > Marco Marzetti, 2017-12-14 12:25:
> > > I am writing this email asking you to clarify what's the=
> > suggested
> > > behavior when PMSI Tunnel Type is set to "Ingress Repli= cation"
> > (type
> > > 6) as draft-ietf-bess-evpn-overlay-10 only suggests wha= t to do
> > with
> > > multicast tunnel trees.
> > >
> > > I think the originating PE should conform with RFC6514 and > > RFC7432
> > > (from which you've taken inspiration) and always (RFC211= 9 MUST)
> > > attach PMSI Tunnel attribute with the Tunnel Type set to Ing= ress
> > > Replication and Tunnel Identifier set to a routable address = of
> > the PE
> > > itself (more specifically NVE's IP address).
> > >
> > > Is that correct?
> > > In that case i suggest to add the following line at the end = of
> > > Section 9.
> > > """
> > > For Ingress Replication the PE should follow what's stat= ed in
> > RFC6514
> > > Section 5 .
> > > """
> >
> > The text of section 9 lists "Ingress Replication" in th= e list of
> > tunnel
> > types that can be used. My understanding is that, in the absence = of
> > anything being specifically said for Ingress Replication, an
> > implementation should follow what is said in RFC7432 and RFC6514.=
> > (What
> > other specs could it follow to implement this supported type ? > > RFC7432
> > and RFC6514 are more than an inspiration here, these are specs th= at
> > the
> > document refers to explicitly)
> >
> > So I'm not sure that it is useful or needed to add text.
> >
> > Can you perhaps expand on why the current text would possibly be<= br> > > ambiguous, misleading or incomplete...?
> >
> > -Thomas
> >
>
>
>
> --
> Marco



--
=
Marco
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DIR:OUT; SFP:1102; SCL:1; SRVR:MWHPR05MB3549; H:MWHPR05MB3551.namprd05.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; A:1; MX:1; LANG:en; received-spf: None (protection.outlook.com: juniper.net does not designate permitted sender hosts) spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: juniper.net X-MS-Exchange-CrossTenant-Network-Message-Id: b70989bb-45c2-488e-d556-08d543cb6a48 X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Dec 2017 14:52:08.2904 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR05MB3549 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-12-15_06:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1712150209 Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Dec 2017 14:52:23 -0000 Thomas, I completely agree w/ your email, below. Yours Irrespectively, John > -----Original Message----- > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Thomas Morin > Sent: Friday, December 15, 2017 5:42 AM > To: Fedyk, Don ; Marco Marzetti > > Cc: bess@ietf.org > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress > Replication >=20 > Hi Don, >=20 > Fedyk, Don, 2017-12-14 20:33: > > I think the gray area is that this draft talks about BUM traffic and > > ingress replication and then has a section on Multicast tunnels which > > excludes ingress replication traffic from the tunnels. >=20 > No, ingress replication is not excluded at all: >=20 > The following tunnel types as defined in [RFC6514] can be used in > the PMSI tunnel attribute for VXLAN/NVGRE: >=20 > + 3 - PIM-SSM Tree > + 4 - PIM-SM Tree > + 5 - BIDIR-PIM Tree > + 6 - Ingress Replication >=20 > > If you are using point to point VXLAN/NVGRE tunnels then ingress > > replication is default [...] >=20 > This formulation surprises me: that some implementations behave as you > describe is possibly true (this seems to be the case of the implementatio= n > that triggered this discussion), but I don't know about any text in the s= pecs > we are discussing that would imply such a 'default'. >=20 > You might have implementations that in the absence of any local > configuration for an EVPN instance on which type of tunnel to use for BUM= , > will default to ingress replication: this is fine, out of the scope of wh= at is > specified for interop, and not breaking other implementations (as long, o= f > course, that what is chosen locally is then advertised as expected in a P= MSI > Tunnel Attribute). >=20 >=20 > > but IMET is being used to identify the NVE IP. I read RFC7432 and > > RFC6514 in this area and thought that the PMSI attribute MUST be set > > when there is an Inclusive Multicast Ethernet tag IMET. >=20 > Yes! (the text of RFC7432 quoted by Ali reminds us that) >=20 >=20 > > I can see two possible fixes: > > - Specify that the PMSI attribute MUST be set if there is an > > IMET route and specify correct attribute. >=20 > Given the content of RFC7432 and the fact that this is a normative ref of > draft-ietf-bess-evpn-overlay, I think that we don't need to repeat this M= UST > in draft-ietf-bess-evpn-overlay. That is, unless we explicitly identify = an > ambiguous piece of text. >=20 > > - Allow that ingress replication is default when PMSI is > > absent but accept PMSI that specifies ingress replication. > > >=20 > I don't think we should do that. It would overnight make non-compliant pr= e- > standard implementation of draft-ietf-bess-evpn-overlay, without a ration= ale > to do so except coping with an implementation that assumed a bit too much= . >=20 > Best, >=20 > -Thomas >=20 >=20 >=20 > > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Marco Marzetti > > Sent: Thursday, December 14, 2017 9:21 AM > > To: Thomas Morin > > Cc: bess@ietf.org > > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress > > Replication > > > > Hello, > > > > I have encountered an implementation that is not attaching any PMSI to > > the IMET. > > The authors think they don't really need it because they only support > > Ingress Replication. > > Such behavior breaks interoperability with other implementations that > > are dropping the NLRI if PMSI is not attached. > > > > So i looked at draft-ietf-bess-evpn-overlay-10 and noticed that > > there's no clear indication of what the proper behavior is. > > As said i assumed i had to look at RFC7432 and RFC6514 (and i did it), > > but i wasn't 100% sure and i preferred to ask. > > > > Onestly you already made my day by confirming what i thought. > > My suggestion was to make things more clear, but i admit that it could > > look redundant. > > > > Thanks > > > > > > > > > > > > > > > > On Thu, Dec 14, 2017 at 2:39 PM, Thomas Morin > > m> wrote: > > > Hi Marco, > > > > > > Marco Marzetti, 2017-12-14 12:25: > > > > I am writing this email asking you to clarify what's the > > > suggested > > > > behavior when PMSI Tunnel Type is set to "Ingress Replication" > > > (type > > > > 6) as draft-ietf-bess-evpn-overlay-10 only suggests what to do > > > with > > > > multicast tunnel trees. > > > > > > > > I think the originating PE should conform with RFC6514 and > > > RFC7432 > > > > (from which you've taken inspiration) and always (RFC2119 MUST) > > > > attach PMSI Tunnel attribute with the Tunnel Type set to Ingress > > > > Replication and Tunnel Identifier set to a routable address of > > > the PE > > > > itself (more specifically NVE's IP address). > > > > > > > > Is that correct? > > > > In that case i suggest to add the following line at the end of > > > > Section 9. > > > > """ > > > > For Ingress Replication the PE should follow what's stated in > > > RFC6514 > > > > Section 5 . > > > > """ > > > > > > The text of section 9 lists "Ingress Replication" in the list of > > > tunnel types that can be used. My understanding is that, in the > > > absence of anything being specifically said for Ingress Replication, > > > an implementation should follow what is said in RFC7432 and RFC6514. > > > (What > > > other specs could it follow to implement this supported type ? > > > RFC7432 > > > and RFC6514 are more than an inspiration here, these are specs that > > > the document refers to explicitly) > > > > > > So I'm not sure that it is useful or needed to add text. > > > > > > Can you perhaps expand on why the current text would possibly be > > > ambiguous, misleading or incomplete...? > > > > > > -Thomas > > > > > > > > > > > -- > > Marco >=20 > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://urldefense.proofpoint.com/v2/url?u=3Dhttps- > 3A__www.ietf.org_mailman_listinfo_bess&d=3DDwICAg&c=3DHAkYuh63rsuhr6Sc > bfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DCRB2tJiQePk0cT-h5LGhEWH- > s_xXXup3HzvBSMRj5VE&m=3DtHiUTn9_QXrhs3cw- > Dn9_qwR3VK2xWv72DcpoOfR_SI&s=3DVxylPoVhzXC58hBsqToxzhUK6-3kfy- > ktUi7A9KZDcs&e=3D From nobody Fri Dec 15 07:35:02 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E1AB8128E19 for ; 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But at least one implementation got it wrong. =20 You Wrote:=20 That is, unless we explicitly identify an ambiguous piece of text. I think section 9. Support for Multicast could use a slight rewording. Pe= rhaps citing RFC7432 as well. =20 I know I read this part several times. The draft specifies a Multicast tun= nel with attribute Ingress replication that you don't use for multicast tra= ffic. >>>>> For example, the PMSI Tunnel attribute may indicate the multicast tunnel is of type PIM-SM; whereas, the BGP Encapsulation extended community may indicate the encapsulation for that tunnel is of type VxLAN. The following tunnel types as defined in [RFC6514] can be used in the PMSI tunnel attribute for VXLAN/NVGRE: + 3 - PIM-SSM Tree + 4 - PIM-SM Tree + 5 - BIDIR-PIM Tree + 6 - Ingress Replication Except for Ingress Replication, this multicast tunnel is used by the PE originating the route for sending multicast traffic to other PEs, and is used by PEs that receive this route for receiving the traffic originated by hosts connected to the PE that originated the route. <<<<< =20 Cheers Don=20 -----Original Message----- From: John E Drake [mailto:jdrake@juniper.net]=20 Sent: Friday, December 15, 2017 9:52 AM To: EXT - thomas.morin@orange.com ; Fedyk, Don ; Marco Marzetti Cc: bess@ietf.org Subject: RE: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Repli= cation Thomas, I completely agree w/ your email, below. Yours Irrespectively, John > -----Original Message----- > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Thomas Morin > Sent: Friday, December 15, 2017 5:42 AM > To: Fedyk, Don ; Marco Marzetti > Cc: bess@ietf.org > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress=20 > Replication >=20 > Hi Don, >=20 > Fedyk, Don, 2017-12-14 20:33: > > I think the gray area is that this draft talks about BUM traffic and=20 > > ingress replication and then has a section on Multicast tunnels=20 > > which excludes ingress replication traffic from the tunnels. >=20 > No, ingress replication is not excluded at all: >=20 > The following tunnel types as defined in [RFC6514] can be used in > the PMSI tunnel attribute for VXLAN/NVGRE: >=20 > + 3 - PIM-SSM Tree > + 4 - PIM-SM Tree > + 5 - BIDIR-PIM Tree > + 6 - Ingress Replication >=20 > > If you are using point to point VXLAN/NVGRE tunnels then ingress=20 > > replication is default [...] >=20 > This formulation surprises me: that some implementations behave as you=20 > describe is possibly true (this seems to be the case of the=20 > implementation that triggered this discussion), but I don't know about=20 > any text in the specs we are discussing that would imply such a 'default'= . >=20 > You might have implementations that in the absence of any local=20 > configuration for an EVPN instance on which type of tunnel to use for=20 > BUM, will default to ingress replication: this is fine, out of the=20 > scope of what is specified for interop, and not breaking other=20 > implementations (as long, of course, that what is chosen locally is=20 > then advertised as expected in a PMSI Tunnel Attribute). >=20 >=20 > > but IMET is being used to identify the NVE IP. I read RFC7432 and > > RFC6514 in this area and thought that the PMSI attribute MUST be set=20 > > when there is an Inclusive Multicast Ethernet tag IMET. >=20 > Yes! (the text of RFC7432 quoted by Ali reminds us that) >=20 >=20 > > I can see two possible fixes: > > - Specify that the PMSI attribute MUST be set if there is an > > IMET route and specify correct attribute. >=20 > Given the content of RFC7432 and the fact that this is a normative ref=20 > of draft-ietf-bess-evpn-overlay, I think that we don't need to repeat=20 > this MUST in draft-ietf-bess-evpn-overlay. That is, unless we=20 > explicitly identify an ambiguous piece of text. >=20 > > - Allow that ingress replication is default when PMSI is > > absent but accept PMSI that specifies ingress replication. > > >=20 > I don't think we should do that. It would overnight make non-compliant=20 > pre- standard implementation of draft-ietf-bess-evpn-overlay, without=20 > a rationale to do so except coping with an implementation that assumed a = bit too much. >=20 > Best, >=20 > -Thomas >=20 >=20 >=20 > > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Marco=20 > > Marzetti > > Sent: Thursday, December 14, 2017 9:21 AM > > To: Thomas Morin > > Cc: bess@ietf.org > > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with=20 > > Ingress Replication > > > > Hello, > > > > I have encountered an implementation that is not attaching any PMSI=20 > > to the IMET. > > The authors think they don't really need it because they only=20 > > support Ingress Replication. > > Such behavior breaks interoperability with other implementations=20 > > that are dropping the NLRI if PMSI is not attached. > > > > So i looked at draft-ietf-bess-evpn-overlay-10 and noticed that=20 > > there's no clear indication of what the proper behavior is. > > As said i assumed i had to look at RFC7432 and RFC6514 (and i did=20 > > it), but i wasn't 100% sure and i preferred to ask. > > > > Onestly you already made my day by confirming what i thought. > > My suggestion was to make things more clear, but i admit that it=20 > > could look redundant. > > > > Thanks > > > > > > > > > > > > > > > > On Thu, Dec 14, 2017 at 2:39 PM, Thomas Morin > > m> wrote: > > > Hi Marco, > > > > > > Marco Marzetti, 2017-12-14 12:25: > > > > I am writing this email asking you to clarify what's the > > > suggested > > > > behavior when PMSI Tunnel Type is set to "Ingress Replication" > > > (type > > > > 6) as draft-ietf-bess-evpn-overlay-10 only suggests what to do > > > with > > > > multicast tunnel trees. > > > > > > > > I think the originating PE should conform with RFC6514 and > > > RFC7432 > > > > (from which you've taken inspiration) and always (RFC2119 MUST)=20 > > > > attach PMSI Tunnel attribute with the Tunnel Type set to Ingress=20 > > > > Replication and Tunnel Identifier set to a routable address of > > > the PE > > > > itself (more specifically NVE's IP address). > > > > > > > > Is that correct? > > > > In that case i suggest to add the following line at the end of=20 > > > > Section 9. > > > > """ > > > > For Ingress Replication the PE should follow what's stated in > > > RFC6514 > > > > Section 5 . > > > > """ > > > > > > The text of section 9 lists "Ingress Replication" in the list of=20 > > > tunnel types that can be used. My understanding is that, in the=20 > > > absence of anything being specifically said for Ingress=20 > > > Replication, an implementation should follow what is said in RFC7432 = and RFC6514. > > > (What > > > other specs could it follow to implement this supported type ? > > > RFC7432 > > > and RFC6514 are more than an inspiration here, these are specs=20 > > > that the document refers to explicitly) > > > > > > So I'm not sure that it is useful or needed to add text. > > > > > > Can you perhaps expand on why the current text would possibly be=20 > > > ambiguous, misleading or incomplete...? > > > > > > -Thomas > > > > > > > > > > > -- > > Marco >=20 > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://urldefense.proofpoint.com/v2/url?u=3Dhttps- > 3A__www.ietf.org_mailman_listinfo_bess&d=3DDwICAg&c=3DHAkYuh63rsuhr6Sc > bfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DCRB2tJiQePk0cT-h5LGhEWH- > s_xXXup3HzvBSMRj5VE&m=3DtHiUTn9_QXrhs3cw- > Dn9_qwR3VK2xWv72DcpoOfR_SI&s=3DVxylPoVhzXC58hBsqToxzhUK6-3kfy- > ktUi7A9KZDcs&e=3D From nobody Fri Dec 15 08:42:30 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1CA1F126CC7 for ; Fri, 15 Dec 2017 08:42:29 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.234 X-Spam-Level: X-Spam-Status: No, score=-1.234 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, SPF_SOFTFAIL=0.665] autolearn=no 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 Z5punXtA2AKT for ; Fri, 15 Dec 2017 08:42:26 -0800 (PST) Received: from p-mail1.rd.orange.com (p-mail1.rd.orange.com [161.106.1.2]) by ietfa.amsl.com (Postfix) with ESMTP id 4F868126C83 for ; Fri, 15 Dec 2017 08:42:26 -0800 (PST) Received: from p-mail1.rd.orange.com (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id 2D3167CC002; Fri, 15 Dec 2017 17:42:25 +0100 (CET) Received: from FTRDCH01.rd.francetelecom.fr (unknown [10.194.32.11]) by p-mail1.rd.orange.com (Postfix) with ESMTP id 147AA41022F; Fri, 15 Dec 2017 17:42:25 +0100 (CET) Received: from l-fipglop (10.193.71.131) by FTRDCH01.rd.francetelecom.fr (10.194.32.11) with Microsoft SMTP Server id 14.3.361.1; Fri, 15 Dec 2017 17:42:24 +0100 Message-ID: <1513356144.6588.38.camel@orange.com> From: Thomas Morin To: "Fedyk, Don" , John E Drake , Marco Marzetti CC: "bess@ietf.org" Date: Fri, 15 Dec 2017 17:42:24 +0100 In-Reply-To: References: <1513258777.30252.11.camel@orange.com> <1513334544.6588.9.camel@orange.com> Organization: Orange S.A. Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.3-1 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Dec 2017 16:42:29 -0000 Hi Don, Fedyk, Don, 2017-12-15 15:34: > I know I read this part several times. The draft specifies a > Multicast tunnel with attribute Ingress replication that you don't > use for multicast traffic. > > > > > > > > > For example, > the PMSI Tunnel attribute may indicate the multicast tunnel is of > type PIM-SM; whereas, the BGP Encapsulation extended community may > indicate the encapsulation for that tunnel is of type VxLAN. The > following tunnel types as defined in [RFC6514] can be used in the > PMSI tunnel attribute for VXLAN/NVGRE: > > + 3 - PIM-SSM Tree > + 4 - PIM-SM Tree > + 5 - BIDIR-PIM Tree > + 6 - Ingress Replication > > > Except for Ingress Replication, this multicast tunnel is used by > the > PE originating the route for sending multicast traffic to other > PEs, > and is used by PEs that receive this route for receiving the > traffic > originated by hosts connected to the PE that originated the route. > <<<<< Honestly, interpreting the above as "The draft specifies a Multicast tunnel with attribute Ingress replication that you don't use for multicast traffic" is in my opinion really far fetched, for two reasons: - the paragraph does not talk about the advertised routes, but what is used in the dataplane (the actual dataplane construct corresponding to the PMSI Tunnel Attribute) - the paragraph only talks about the traffic flowing from advertiser to remote PEs, so it does not exclude the other direction of traffic from being used in the case of ingress replication So well, it's not the first time that additional text aiming at helping people understand, rather than add precisions required for interop, ends up being a source of questions. Here I would suggest to authors to consider purely removing this paragraph, not because it would be wrong or ambiguous (as said above, I don't think it is), but because as far as I can tell it has never meant to specify anything not already implied by RFC7432, but was here only to help understand. Best, -Thomas -----Original Message----- > From: John E Drake [mailto:jdrake@juniper.net] > Sent: Friday, December 15, 2017 9:52 AM > To: EXT - thomas.morin@orange.com ; Fedyk, > Don ; Marco Marzetti > Cc: bess@ietf.org > Subject: RE: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress > Replication > > Thomas, > > I completely agree w/ your email, below. > > Yours Irrespectively, > > John > > > > -----Original Message----- > > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Thomas Morin > > Sent: Friday, December 15, 2017 5:42 AM > > To: Fedyk, Don ; Marco Marzetti > it> > > Cc: bess@ietf.org > > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with > > Ingress > > Replication > > > > Hi Don, > > > > Fedyk, Don, 2017-12-14 20:33: > > > I think the gray area is that this draft talks about BUM traffic > > > and > > > ingress replication and then has a section on Multicast tunnels > > > which excludes ingress replication traffic from the tunnels. > > > > No, ingress replication is not excluded at all: > > > > The following tunnel types as defined in [RFC6514] can be used > > in > > the PMSI tunnel attribute for VXLAN/NVGRE: > > > > + 3 - PIM-SSM Tree > > + 4 - PIM-SM Tree > > + 5 - BIDIR-PIM Tree > > + 6 - Ingress Replication > > > > > If you are using point to point VXLAN/NVGRE tunnels then > > > ingress > > > replication is default [...] > > > > This formulation surprises me: that some implementations behave as > > you > > describe is possibly true (this seems to be the case of the > > implementation that triggered this discussion), but I don't know > > about > > any text in the specs we are discussing that would imply such a > > 'default'. > > > > You might have implementations that in the absence of any local > > configuration for an EVPN instance on which type of tunnel to use > > for > > BUM, will default to ingress replication: this is fine, out of the > > scope of what is specified for interop, and not breaking other > > implementations (as long, of course, that what is chosen locally > > is > > then advertised as expected in a PMSI Tunnel Attribute). > > > > > > > but IMET is being used to identify the NVE IP. I read RFC7432 > > > and > > > RFC6514 in this area and thought that the PMSI attribute MUST be > > > set > > > when there is an Inclusive Multicast Ethernet tag IMET. > > > > Yes! (the text of RFC7432 quoted by Ali reminds us that) > > > > > > > I can see two possible fixes: > > > - Specify that the PMSI attribute MUST be set if there > > > is an > > > IMET route and specify correct attribute. > > > > Given the content of RFC7432 and the fact that this is a normative > > ref > > of draft-ietf-bess-evpn-overlay, I think that we don't need to > > repeat > > this MUST in draft-ietf-bess-evpn-overlay. That is, unless we > > explicitly identify an ambiguous piece of text. > > > > > - Allow that ingress replication is default when PMSI is > > > absent but accept PMSI that specifies ingress replication. > > > > > > > I don't think we should do that. It would overnight make non- > > compliant > > pre- standard implementation of draft-ietf-bess-evpn-overlay, > > without > > a rationale to do so except coping with an implementation that > > assumed a bit too much. > > > > Best, > > > > -Thomas > > > > > > > > > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Marco > > > Marzetti > > > Sent: Thursday, December 14, 2017 9:21 AM > > > To: Thomas Morin > > > Cc: bess@ietf.org > > > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with > > > Ingress Replication > > > > > > Hello, > > > > > > I have encountered an implementation that is not attaching any > > > PMSI > > > to the IMET. > > > The authors think they don't really need it because they only > > > support Ingress Replication. > > > Such behavior breaks interoperability with other implementations > > > that are dropping the NLRI if PMSI is not attached. > > > > > > So i looked at draft-ietf-bess-evpn-overlay-10 and noticed that > > > there's no clear indication of what the proper behavior is. > > > As said i assumed i had to look at RFC7432 and RFC6514 (and i > > > did > > > it), but i wasn't 100% sure and i preferred to ask. > > > > > > Onestly you already made my day by confirming what i thought. > > > My suggestion was to make things more clear, but i admit that it > > > could look redundant. > > > > > > Thanks > > > > > > > > > > > > > > > > > > > > > > > > On Thu, Dec 14, 2017 at 2:39 PM, Thomas Morin > > > > > > m> wrote: > > > > Hi Marco, > > > > > > > > Marco Marzetti, 2017-12-14 12:25: > > > > > I am writing this email asking you to clarify what's the > > > > > > > > suggested > > > > > behavior when PMSI Tunnel Type is set to "Ingress > > > > > Replication" > > > > > > > > (type > > > > > 6) as draft-ietf-bess-evpn-overlay-10 only suggests what to > > > > > do > > > > > > > > with > > > > > multicast tunnel trees. > > > > > > > > > > I think the originating PE should conform with RFC6514 and > > > > > > > > RFC7432 > > > > > (from which you've taken inspiration) and always (RFC2119 > > > > > MUST) > > > > > attach PMSI Tunnel attribute with the Tunnel Type set to > > > > > Ingress > > > > > Replication and Tunnel Identifier set to a routable address > > > > > of > > > > > > > > the PE > > > > > itself (more specifically NVE's IP address). > > > > > > > > > > Is that correct? > > > > > In that case i suggest to add the following line at the end > > > > > of > > > > > Section 9. > > > > > """ > > > > > For Ingress Replication the PE should follow what's stated in > > > > > > > > RFC6514 > > > > > Section 5 . > > > > > """ > > > > > > > > The text of section 9 lists "Ingress Replication" in the list > > > > of > > > > tunnel types that can be used. My understanding is that, in > > > > the > > > > absence of anything being specifically said for Ingress > > > > Replication, an implementation should follow what is said in > > > > RFC7432 and RFC6514. > > > > (What > > > > other specs could it follow to implement this supported type ? > > > > RFC7432 > > > > and RFC6514 are more than an inspiration here, these are specs > > > > that the document refers to explicitly) > > > > > > > > So I'm not sure that it is useful or needed to add text. > > > > > > > > Can you perhaps expand on why the current text would possibly > > > > be > > > > ambiguous, misleading or incomplete...? > > > > > > > > -Thomas > > > > > > > > > > > > > > > > -- > > > Marco > > > > _______________________________________________ > > BESS mailing list > > BESS@ietf.org > > https://urldefense.proofpoint.com/v2/url?u=https- > > 3A__www.ietf.org_mailman_listinfo_bess&d=DwICAg&c=HAkYuh63rsuhr6Sc > > bfh0UjBXeMK-ndb3voDTXcWzoCI&r=CRB2tJiQePk0cT-h5LGhEWH- > > s_xXXup3HzvBSMRj5VE&m=tHiUTn9_QXrhs3cw- > > Dn9_qwR3VK2xWv72DcpoOfR_SI&s=VxylPoVhzXC58hBsqToxzhUK6-3kfy- > > ktUi7A9KZDcs&e= From nobody Fri Dec 15 10:09:36 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DC4B912706D for ; Fri, 15 Dec 2017 10:09:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.521 X-Spam-Level: X-Spam-Status: No, score=-14.521 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.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 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([64.101.220.145]) with mapi id 15.00.1320.000; Fri, 15 Dec 2017 13:09:29 -0500 From: "Ali Sajassi (sajassi)" To: "Fedyk, Don" , John E Drake , "EXT - thomas.morin@orange.com" , Marco Marzetti CC: "bess@ietf.org" Thread-Topic: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication Thread-Index: AQHTdM5LxSlRFluwPkmVHdFfkfBaX6NC2FuAgAALcQCAAFZkMIABUs4AgABFxgCAAAvuAP//pRmA Date: Fri, 15 Dec 2017 18:09:29 +0000 Message-ID: <6D2DD885-E104-4822-8815-6C631F755DD4@cisco.com> References: <1513258777.30252.11.camel@orange.com> <1513334544.6588.9.camel@orange.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.29.0.171205 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.19.76.52] Content-Type: text/plain; charset="utf-8" Content-ID: <9FB9395D58418045AD8A08884709B7CC@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Dec 2017 18:09:35 -0000 SGkgRG9uLA0KDQpPbiAxMi8xNS8xNywgNzozNSBBTSwgIkJFU1Mgb24gYmVoYWxmIG9mIEZlZHlr LCBEb24iIDxiZXNzLWJvdW5jZXNAaWV0Zi5vcmcgb24gYmVoYWxmIG9mIGRvbi5mZWR5a0BocGUu Y29tPiB3cm90ZToNCg0KICAgIEhpIFRob21hcw0KICAgIA0KICAgIEknbSBnb29kIHdpdGggdGhl IGludGVycHJldGF0aW9uIG9mIFJGQzc0MzIgYW5kIFJGQzY1MTQgaW4gdGhpcyBhcmVhIGFzIEkg c2FpZC4gIEJ1dCBhdCBsZWFzdCBvbmUgaW1wbGVtZW50YXRpb24gZ290IGl0IHdyb25nLiAgIA0K ICAgIA0KICAgIFlvdSBXcm90ZTogDQogICAgVGhhdCBpcywgdW5sZXNzIHdlICBleHBsaWNpdGx5 IGlkZW50aWZ5IGFuIGFtYmlndW91cyBwaWVjZSBvZiB0ZXh0Lg0KICAgIA0KICAgIEkgdGhpbmsg c2VjdGlvbiAgOS4gU3VwcG9ydCBmb3IgTXVsdGljYXN0IGNvdWxkIHVzZSBhIHNsaWdodCByZXdv 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Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1320.000; Fri, 15 Dec 2017 13:21:21 -0500 From: "Ali Sajassi (sajassi)" To: Thomas Morin , "Fedyk, Don" , John E Drake , Marco Marzetti CC: "bess@ietf.org" Thread-Topic: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication Thread-Index: AQHTdM5LxSlRFluwPkmVHdFfkfBaX6NC2FuAgAALcQCAAFZkMIABUs4AgABFxgCAAAvuAIAAEuEA//+ViYA= Date: Fri, 15 Dec 2017 18:21:21 +0000 Message-ID: <37A2C852-9730-4944-8205-88ACE9112990@cisco.com> References: <1513258777.30252.11.camel@orange.com> <1513334544.6588.9.camel@orange.com> <1513356144.6588.38.camel@orange.com> In-Reply-To: <1513356144.6588.38.camel@orange.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.29.0.171205 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.19.76.52] Content-Type: text/plain; charset="utf-8" Content-ID: <104B23668FA72C48B3E2BCEC973F3446@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Dec 2017 18:21:27 -0000 SGkgVGhvbWFzLA0KDQpPbiAxMi8xNS8xNywgODo0MiBBTSwgIkJFU1Mgb24gYmVoYWxmIG9mIFRo b21hcyBNb3JpbiIgPGJlc3MtYm91bmNlc0BpZXRmLm9yZyBvbiBiZWhhbGYgb2YgdGhvbWFzLm1v cmluQG9yYW5nZS5jb20+IHdyb3RlOg0KDQogICAgDQogICAgSGVyZSBJIHdvdWxkIHN1Z2dlc3Qg dG8gYXV0aG9ycyB0byBjb25zaWRlciBwdXJlbHkgcmVtb3ZpbmcgdGhpcw0KICAgIHBhcmFncmFw aCwgbm90IGJlY2F1c2UgaXQgd291bGQgYmUgd3Jvbmcgb3IgYW1iaWd1b3VzIChhcyBzYWlkIGFi b3ZlLCBJDQogICAgZG9uJ3QgdGhpbmsgaXQgaXMpLCBidXQgYmVjYXVzZSBhcyBmYXIgYXMgSSBj 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X-List-Received-Date: Fri, 15 Dec 2017 18:24:38 -0000 if the intent was to help people better understand the reasoning behind the design, is it really best to remove it? Wouldn't a rephrasing be more appropriate? -m Le 2017-12-15 à 19:21, Ali Sajassi (sajassi) a écrit : > Hi Thomas, > > On 12/15/17, 8:42 AM, "BESS on behalf of Thomas Morin" wrote: > > > Here I would suggest to authors to consider purely removing this > paragraph, not because it would be wrong or ambiguous (as said above, I > don't think it is), but because as far as I can tell it has never meant > to specify anything not already implied by RFC7432, but was here only > to help understand. > > OK, I will remove it in the next rev. > > Cheers, > Ali > > Best, > > -Thomas > > > > > -----Original Message----- > > From: John E Drake [mailto:jdrake@juniper.net] > > Sent: Friday, December 15, 2017 9:52 AM > > To: EXT - thomas.morin@orange.com ; Fedyk, > > Don ; Marco Marzetti > > Cc: bess@ietf.org > > Subject: RE: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress > > Replication > > > > Thomas, > > > > I completely agree w/ your email, below. > > > > Yours Irrespectively, > > > > John > > > > > > > -----Original Message----- > > > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Thomas Morin > > > Sent: Friday, December 15, 2017 5:42 AM > > > To: Fedyk, Don ; Marco Marzetti > > it> > > > Cc: bess@ietf.org > > > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with > > > Ingress > > > Replication > > > > > > Hi Don, > > > > > > Fedyk, Don, 2017-12-14 20:33: > > > > I think the gray area is that this draft talks about BUM traffic > > > > and > > > > ingress replication and then has a section on Multicast tunnels > > > > which excludes ingress replication traffic from the tunnels. > > > > > > No, ingress replication is not excluded at all: > > > > > > The following tunnel types as defined in [RFC6514] can be used > > > in > > > the PMSI tunnel attribute for VXLAN/NVGRE: > > > > > > + 3 - PIM-SSM Tree > > > + 4 - PIM-SM Tree > > > + 5 - BIDIR-PIM Tree > > > + 6 - Ingress Replication > > > > > > > If you are using point to point VXLAN/NVGRE tunnels then > > > > ingress > > > > replication is default [...] > > > > > > This formulation surprises me: that some implementations behave as > > > you > > > describe is possibly true (this seems to be the case of the > > > implementation that triggered this discussion), but I don't know > > > about > > > any text in the specs we are discussing that would imply such a > > > 'default'. > > > > > > You might have implementations that in the absence of any local > > > configuration for an EVPN instance on which type of tunnel to use > > > for > > > BUM, will default to ingress replication: this is fine, out of the > > > scope of what is specified for interop, and not breaking other > > > implementations (as long, of course, that what is chosen locally > > > is > > > then advertised as expected in a PMSI Tunnel Attribute). > > > > > > > > > > but IMET is being used to identify the NVE IP. I read RFC7432 > > > > and > > > > RFC6514 in this area and thought that the PMSI attribute MUST be > > > > set > > > > when there is an Inclusive Multicast Ethernet tag IMET. > > > > > > Yes! (the text of RFC7432 quoted by Ali reminds us that) > > > > > > > > > > I can see two possible fixes: > > > > - Specify that the PMSI attribute MUST be set if there > > > > is an > > > > IMET route and specify correct attribute. > > > > > > Given the content of RFC7432 and the fact that this is a normative > > > ref > > > of draft-ietf-bess-evpn-overlay, I think that we don't need to > > > repeat > > > this MUST in draft-ietf-bess-evpn-overlay. That is, unless we > > > explicitly identify an ambiguous piece of text. > > > > > > > - Allow that ingress replication is default when PMSI is > > > > absent but accept PMSI that specifies ingress replication. > > > > > > > > > > I don't think we should do that. It would overnight make non- > > > compliant > > > pre- standard implementation of draft-ietf-bess-evpn-overlay, > > > without > > > a rationale to do so except coping with an implementation that > > > assumed a bit too much. > > > > > > Best, > > > > > > -Thomas > > > > > > > > > > > > > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Marco > > > > Marzetti > > > > Sent: Thursday, December 14, 2017 9:21 AM > > > > To: Thomas Morin > > > > Cc: bess@ietf.org > > > > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with > > > > Ingress Replication > > > > > > > > Hello, > > > > > > > > I have encountered an implementation that is not attaching any > > > > PMSI > > > > to the IMET. > > > > The authors think they don't really need it because they only > > > > support Ingress Replication. > > > > Such behavior breaks interoperability with other implementations > > > > that are dropping the NLRI if PMSI is not attached. > > > > > > > > So i looked at draft-ietf-bess-evpn-overlay-10 and noticed that > > > > there's no clear indication of what the proper behavior is. > > > > As said i assumed i had to look at RFC7432 and RFC6514 (and i > > > > did > > > > it), but i wasn't 100% sure and i preferred to ask. > > > > > > > > Onestly you already made my day by confirming what i thought. > > > > My suggestion was to make things more clear, but i admit that it > > > > could look redundant. > > > > > > > > Thanks > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Thu, Dec 14, 2017 at 2:39 PM, Thomas Morin > > > > > > > > > m> wrote: > > > > > Hi Marco, > > > > > > > > > > Marco Marzetti, 2017-12-14 12:25: > > > > > > I am writing this email asking you to clarify what's the > > > > > > > > > > suggested > > > > > > behavior when PMSI Tunnel Type is set to "Ingress > > > > > > Replication" > > > > > > > > > > (type > > > > > > 6) as draft-ietf-bess-evpn-overlay-10 only suggests what to > > > > > > do > > > > > > > > > > with > > > > > > multicast tunnel trees. > > > > > > > > > > > > I think the originating PE should conform with RFC6514 and > > > > > > > > > > RFC7432 > > > > > > (from which you've taken inspiration) and always (RFC2119 > > > > > > MUST) > > > > > > attach PMSI Tunnel attribute with the Tunnel Type set to > > > > > > Ingress > > > > > > Replication and Tunnel Identifier set to a routable address > > > > > > of > > > > > > > > > > the PE > > > > > > itself (more specifically NVE's IP address). > > > > > > > > > > > > Is that correct? > > > > > > In that case i suggest to add the following line at the end > > > > > > of > > > > > > Section 9. > > > > > > """ > > > > > > For Ingress Replication the PE should follow what's stated in > > > > > > > > > > RFC6514 > > > > > > Section 5 . > > > > > > """ > > > > > > > > > > The text of section 9 lists "Ingress Replication" in the list > > > > > of > > > > > tunnel types that can be used. My understanding is that, in > > > > > the > > > > > absence of anything being specifically said for Ingress > > > > > Replication, an implementation should follow what is said in > > > > > RFC7432 and RFC6514. > > > > > (What > > > > > other specs could it follow to implement this supported type ? > > > > > RFC7432 > > > > > and RFC6514 are more than an inspiration here, these are specs > > > > > that the document refers to explicitly) > > > > > > > > > > So I'm not sure that it is useful or needed to add text. > > > > > > > > > > Can you perhaps expand on why the current text would possibly > > > > > be > > > > > ambiguous, misleading or incomplete...? > > > > > > > > > > -Thomas > > > > > > > > > > > > > > > > > > > > > -- > > > > Marco > > > > > > _______________________________________________ > > > BESS mailing list > > > BESS@ietf.org > > > https://urldefense.proofpoint.com/v2/url?u=https- > > > 3A__www.ietf.org_mailman_listinfo_bess&d=DwICAg&c=HAkYuh63rsuhr6Sc > > > bfh0UjBXeMK-ndb3voDTXcWzoCI&r=CRB2tJiQePk0cT-h5LGhEWH- > > > s_xXXup3HzvBSMRj5VE&m=tHiUTn9_QXrhs3cw- > > > Dn9_qwR3VK2xWv72DcpoOfR_SI&s=VxylPoVhzXC58hBsqToxzhUK6-3kfy- > > > ktUi7A9KZDcs&e= > > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess > > > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess > From nobody Fri Dec 15 10:30:03 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2746B1270A7 for ; Fri, 15 Dec 2017 10:30:02 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.721 X-Spam-Level: X-Spam-Status: No, score=-0.721 tagged_above=-999 required=5 tests=[BAYES_40=-0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01] 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 h_3lreuL2s09 for ; Fri, 15 Dec 2017 10:30:00 -0800 (PST) Received: from asmtp5.iomartmail.com (asmtp5.iomartmail.com [62.128.201.176]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C208212706D for ; Fri, 15 Dec 2017 10:29:59 -0800 (PST) Received: from asmtp5.iomartmail.com (localhost.localdomain [127.0.0.1]) by asmtp5.iomartmail.com (8.13.8/8.13.8) with ESMTP id vBFITvXG027301; Fri, 15 Dec 2017 18:29:57 GMT Received: from 950129200 (83.20.112.87.dyn.plus.net [87.112.20.83]) (authenticated bits=0) by asmtp5.iomartmail.com (8.13.8/8.13.8) with ESMTP id vBFITtto027282 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 15 Dec 2017 18:29:56 GMT Reply-To: From: "Adrian Farrel" To: "Thomas Morin" Cc: References: <20181_1512146931_5A2187F3_20181_172_1_1512146931.4117.139.camel@orange.com> <73458a60-df4e-70ff-03b7-f998837981fa@nokia.com> <37B07F60-E58B-4197-B253-58CE21DD689E@cisco.com> In-Reply-To: <37B07F60-E58B-4197-B253-58CE21DD689E@cisco.com> Date: Fri, 15 Dec 2017 18:29:51 -0000 Message-ID: <036d01d375d2$b2f46760$18dd3620$@olddog.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQKc/1dBjforfr7r1aB4XvekYA5tlAGIuU7RAY9GhLMDm5Z/3qF8CEgA Content-Language: en-gb X-TM-AS-MML: disable X-TM-AS-Product-Ver: IMSS-7.1.0.1679-8.2.0.1013-23532.001 X-TM-AS-Result: No-1.234-10.0-31-10 X-imss-scan-details: No-1.234-10.0-31-10 X-TMASE-MatchedRID: 9zTThWtzIms4HKI/yaqRm8ikxLAkSHclTLQEUv3ZO7jdlUBV/nLsUjNC 3jY10N+NpiGSgn7jjRbw7Epw61REjymsXCLiPR5DHFAJdqqxfclIeNYTP8OmTL0CHtIgSetxJz/ Fli73wMhVbmUBto85MIhvDuwhdNATof0ugjLmfW6Vjmqvt/p8cnLhUU/qa4OGxXry9SlzFG+jxY yRBa/qJQOkBnb8H8GWDV8DVAd6AO/dB/CxWTRRuwihQpoXbuXFdMDZHj2cSVEUPQi+o+tcsqBAn MFFLQByi45/1XNLUqSKBZLf3RPySP3sR2vyZsKszE7cUvYcdjYzGEQdfOx9re22z8wfpczKCQKe QDeH+fUPvTV19UCLO5Iv06+1Rxr97r4PjzaceGv6svlVb6h9lw== Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Dec 2017 18:30:02 -0000 > > Welcome Stephane! :) > > Be aware that co-chairing bess comes with the risk of being = possibly > > misrepresented [1]. > > > > [1] https://twitter.com/LlanOldDog/status/643796807852630016 Thanks for all the hard work over the years, Thomas. I have to promise that the quote was genuine. I wouldn't want to be = thought of as the sort of person who writes fairy tales. Adrian -- Buy someone a book for Christmas Tales from the Wood - Eighteen new fairy tales More Tales from the Wood - Eighteen MORE new fairy tales Tales from Beyond the Wood - A bumper collection of twenty-two new tales https://www.feedaread.com/profiles/8604/ http://www.amazon.co.uk/Tales-Wood-Adrian-Farrel/dp/1786100924 Or buy from me direct. 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From: "Ali Sajassi (sajassi)" To: Martin Vigoureux , "bess@ietf.org" Thread-Topic: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication Thread-Index: AQHTdM5LxSlRFluwPkmVHdFfkfBaX6NC2FuAgAALcQCAAFZkMIABUs4AgABFxgCAAAvuAIAAEuEA//+ViYCAAIb6gP//fCMA Date: Fri, 15 Dec 2017 18:32:30 +0000 Message-ID: <4CFCEFAC-3829-42B1-AD9E-916812ACCC57@cisco.com> References: <1513258777.30252.11.camel@orange.com> <1513334544.6588.9.camel@orange.com> <1513356144.6588.38.camel@orange.com> <37A2C852-9730-4944-8205-88ACE9112990@cisco.com> <5c71355d-d55d-d74b-73dc-dc924a756ec9@nokia.com> In-Reply-To: <5c71355d-d55d-d74b-73dc-dc924a756ec9@nokia.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/f.29.0.171205 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.19.76.52] Content-Type: text/plain; charset="utf-8" Content-ID: <2ABB4EC2E4881D4C8DB08F114E819759@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Dec 2017 18:32:35 -0000 DQpIaSBNYXJ0aW4sDQoNCkl0IGlzIG9uZSBvZiB0aG9zZSB0aGluZ3MgdGhhdCDigJxsZXNzIG1h eSBiZSBtb3Jl4oCd4oCTIGkuZS4sIGRpZmZlcmVuY2UgYmV0d2VlbiByb3V0ZSBvcmlnaW5hdGlv biBhbmQgdHJhZmZpYyBvcmlnaW5hdGlvbiBmb3IgaW5ncmVzcy1yZXBsaWNhdGlvbiB0dW5uZWxz IHZlcnN1cyBQMk1QIHNob3VsZCBiZSBjbGVhciB0byBwZW9wbGUgaW4gdGhlIEJFU1MgV0cuIEZ1 cnRoZXJtb3JlLCBpdCBpcyBjb25zaXN0ZW50IHdpdGggUkZDIDc0MzIuIEluIG90aGVyIHdvcmRz LCBpZiB0aGUgcHJvY2VkdXJlIHdhcyBkaWZmZXJlbnQgdGhhbiBSRkMgNzQzMiwgdGhlbiBJIHdv dWxkIGhhdmUgZWxhYm9yYXRlZCBvbiB0aGlzIHBhcmFncmFwaCBpbnN0ZWFkIG9mIHJlbW92aW5n 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ID4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18NCiAgICA+ IEJFU1MgbWFpbGluZyBsaXN0DQogICAgPiBCRVNTQGlldGYub3JnDQogICAgPiBodHRwczovL3d3 dy5pZXRmLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2Jlc3MNCiAgICA+IA0KICAgIA0KICAgIF9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fDQogICAgQkVTUyBtYWls aW5nIGxpc3QNCiAgICBCRVNTQGlldGYub3JnDQogICAgaHR0cHM6Ly93d3cuaWV0Zi5vcmcvbWFp bG1hbi9saXN0aW5mby9iZXNzDQogICAgDQoNCg== From nobody Fri Dec 15 10:33:38 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 030CA1270A7 for ; Fri, 15 Dec 2017 10:33:37 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, MIME_QP_LONG_LINE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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<5c71355d-d55d-d74b-73dc-dc924a756ec9@nokia.com> In-Reply-To: <5c71355d-d55d-d74b-73dc-dc924a756ec9@nokia.com> Mime-version: 1.0 Content-type: text/plain; charset="UTF-8" Content-transfer-encoding: quoted-printable Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Dec 2017 18:33:37 -0000 +1 Martin. By removing it you assume right interpretation, by wording it unambiguously= you provide the right interpretation. Cheers, Jeff -----Original Message----- From: BESS on behalf of Martin Vigoureux Date: Friday, December 15, 2017 at 10:24 To: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Repli= cation if the intent was to help people better understand the reasoning behind= =20 the design, is it really best to remove it? Wouldn't a rephrasing be more appropriate? =20 -m =20 Le 2017-12-15 =C3=A0 19:21, Ali Sajassi (sajassi) a =C3=A9crit : > Hi Thomas, >=20 > On 12/15/17, 8:42 AM, "BESS on behalf of Thomas Morin" wrote: >=20 > =20 > Here I would suggest to authors to consider purely removing this > paragraph, not because it would be wrong or ambiguous (as said a= bove, I > don't think it is), but because as far as I can tell it has neve= r meant > to specify anything not already implied by RFC7432, but was here= only > to help understand. > =20 > OK, I will remove it in the next rev. > =20 > Cheers, > Ali > =20 > Best, > =20 > -Thomas > =20 > =20 > =20 > =20 > -----Original Message----- > > From: John E Drake [mailto:jdrake@juniper.net] > > Sent: Friday, December 15, 2017 9:52 AM > > To: EXT - thomas.morin@orange.com ; F= edyk, > > Don ; Marco Marzetti > > Cc: bess@ietf.org > > Subject: RE: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with = Ingress > > Replication > > > > Thomas, > > > > I completely agree w/ your email, below. > > > > Yours Irrespectively, > > > > John > > > > > > > -----Original Message----- > > > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Thoma= s Morin > > > Sent: Friday, December 15, 2017 5:42 AM > > > To: Fedyk, Don ; Marco Marzetti > > it> > > > Cc: bess@ietf.org > > > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI wit= h > > > Ingress > > > Replication > > > > > > Hi Don, > > > > > > Fedyk, Don, 2017-12-14 20:33: > > > > I think the gray area is that this draft talks about BUM t= raffic > > > > and > > > > ingress replication and then has a section on Multicast tu= nnels > > > > which excludes ingress replication traffic from the tunnel= s. > > > > > > No, ingress replication is not excluded at all: > > > > > > The following tunnel types as defined in [RFC6514] can be= used > > > in > > > the PMSI tunnel attribute for VXLAN/NVGRE: > > > > > > + 3 - PIM-SSM Tree > > > + 4 - PIM-SM Tree > > > + 5 - BIDIR-PIM Tree > > > + 6 - Ingress Replication > > > > > > > If you are using point to point VXLAN/NVGRE tunnels then > > > > ingress > > > > replication is default [...] > > > > > > This formulation surprises me: that some implementations beh= ave as > > > you > > > describe is possibly true (this seems to be the case of the > > > implementation that triggered this discussion), but I don't = know > > > about > > > any text in the specs we are discussing that would imply suc= h a > > > 'default'. > > > > > > You might have implementations that in the absence of any lo= cal > > > configuration for an EVPN instance on which type of tunnel t= o use > > > for > > > BUM, will default to ingress replication: this is fine, out = of the > > > scope of what is specified for interop, and not breaking oth= er > > > implementations (as long, of course, that what is chosen loc= ally > > > is > > > then advertised as expected in a PMSI Tunnel Attribute). > > > > > > > > > > but IMET is being used to identify the NVE IP. I read R= FC7432 > > > > and > > > > RFC6514 in this area and thought that the PMSI attribute M= UST be > > > > set > > > > when there is an Inclusive Multicast Ethernet tag IMET. > > > > > > Yes! (the text of RFC7432 quoted by Ali reminds us that) > > > > > > > > > > I can see two possible fixes: > > > > - Specify that the PMSI attribute MUST be set if = there > > > > is an > > > > IMET route and specify correct attribute. > > > > > > Given the content of RFC7432 and the fact that this is a nor= mative > > > ref > > > of draft-ietf-bess-evpn-overlay, I think that we don't need = to > > > repeat > > > this MUST in draft-ietf-bess-evpn-overlay. That is, unless = we > > > explicitly identify an ambiguous piece of text. > > > > > > > - Allow that ingress replication is default when = PMSI is > > > > absent but accept PMSI that specifies ingress replication. > > > > > > > > > > I don't think we should do that. It would overnight make non= - > > > compliant > > > pre- standard implementation of draft-ietf-bess-evpn-overlay= , > > > without > > > a rationale to do so except coping with an implementation th= at > > > assumed a bit too much. > > > > > > Best, > > > > > > -Thomas > > > > > > > > > > > > > From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Mar= co > > > > Marzetti > > > > Sent: Thursday, December 14, 2017 9:21 AM > > > > To: Thomas Morin > > > > Cc: bess@ietf.org > > > > Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI w= ith > > > > Ingress Replication > > > > > > > > Hello, > > > > > > > > I have encountered an implementation that is not attaching= any > > > > PMSI > > > > to the IMET. > > > > The authors think they don't really need it because they o= nly > > > > support Ingress Replication. > > > > Such behavior breaks interoperability with other implement= ations > > > > that are dropping the NLRI if PMSI is not attached. > > > > > > > > So i looked at draft-ietf-bess-evpn-overlay-10 and noticed= that > > > > there's no clear indication of what the proper behavior is= . > > > > As said i assumed i had to look at RFC7432 and RFC6514 (an= d i > > > > did > > > > it), but i wasn't 100% sure and i preferred to ask. > > > > > > > > Onestly you already made my day by confirming what i thoug= ht. > > > > My suggestion was to make things more clear, but i admit t= hat it > > > > could look redundant. > > > > > > > > Thanks > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Thu, Dec 14, 2017 at 2:39 PM, Thomas Morin > > > > > > > > > m> wrote: > > > > > Hi Marco, > > > > > > > > > > Marco Marzetti, 2017-12-14 12:25: > > > > > > I am writing this email asking you to clarify what's t= he > > > > > > > > > > suggested > > > > > > behavior when PMSI Tunnel Type is set to "Ingress > > > > > > Replication" > > > > > > > > > > (type > > > > > > 6) as draft-ietf-bess-evpn-overlay-10 only suggests wh= at to > > > > > > do > > > > > > > > > > with > > > > > > multicast tunnel trees. > > > > > > > > > > > > I think the originating PE should conform with RFC6514= and > > > > > > > > > > RFC7432 > > > > > > (from which you've taken inspiration) and always (RFC2= 119 > > > > > > MUST) > > > > > > attach PMSI Tunnel attribute with the Tunnel Type set = to > > > > > > Ingress > > > > > > Replication and Tunnel Identifier set to a routable ad= dress > > > > > > of > > > > > > > > > > the PE > > > > > > itself (more specifically NVE's IP address). > > > > > > > > > > > > Is that correct? > > > > > > In that case i suggest to add the following line at th= e end > > > > > > of > > > > > > Section 9. > > > > > > """ > > > > > > For Ingress Replication the PE should follow what's st= ated in > > > > > > > > > > RFC6514 > > > > > > Section 5 . > > > > > > """ > > > > > > > > > > The text of section 9 lists "Ingress Replication" in the= list > > > > > of > > > > > tunnel types that can be used. My understanding is that,= in > > > > > the > > > > > absence of anything being specifically said for Ingress > > > > > Replication, an implementation should follow what is sai= d in > > > > > RFC7432 and RFC6514. > > > > > (What > > > > > other specs could it follow to implement this supported = type ? > > > > > RFC7432 > > > > > and RFC6514 are more than an inspiration here, these are= specs > > > > > that the document refers to explicitly) > > > > > > > > > > So I'm not sure that it is useful or needed to add text. > > > > > > > > > > Can you perhaps expand on why the current text would pos= sibly > > > > > be > > > > > ambiguous, misleading or incomplete...? > > > > > > > > > > -Thomas > > > > > > > > > > > > > > > > > > > > > -- > > > > Marco > > > > > > _______________________________________________ > > > BESS mailing list > > > BESS@ietf.org > > > https://urldefense.proofpoint.com/v2/url?u=3Dhttps- > > > 3A__www.ietf.org_mailman_listinfo_bess&d=3DDwICAg&c=3DHAkYuh63rs= uhr6Sc > > > bfh0UjBXeMK-ndb3voDTXcWzoCI&r=3DCRB2tJiQePk0cT-h5LGhEWH- > > > s_xXXup3HzvBSMRj5VE&m=3DtHiUTn9_QXrhs3cw- > > > Dn9_qwR3VK2xWv72DcpoOfR_SI&s=3DVxylPoVhzXC58hBsqToxzhUK6-3kfy- > > > ktUi7A9KZDcs&e=3D > =20 > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess > =20 >=20 > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess >=20 =20 _______________________________________________ BESS mailing list BESS@ietf.org https://www.ietf.org/mailman/listinfo/bess =20 From nobody Fri Dec 15 11:27:13 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D7BB5126E3A for ; Fri, 15 Dec 2017 11:27:12 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.001 X-Spam-Level: X-Spam-Status: No, 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Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: juniper.net X-MS-Exchange-CrossTenant-Network-Message-Id: 395bfe57-d292-488d-bd17-08d543f1d391 X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Dec 2017 19:27:05.7422 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR05MB3551 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-12-15_11:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1712150271 Archived-At: Subject: Re: [bess] draft-ietf-bess-evpn-overlay-10 PMSI with Ingress Replication X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Dec 2017 19:27:13 -0000 SSBkb24ndCB0aGluayBpdCBhZGRzIGFueXRoaW5nIHRvIHdoYXQgaXMgYWxyZWFkeSBpbiBSRkMg NzQzMi4NCg0KWW91cnMgSXJyZXNwZWN0aXZlbHksDQoNCkpvaG4NCg0KPiAtLS0tLU9yaWdpbmFs IE1lc3NhZ2UtLS0tLQ0KPiBGcm9tOiBCRVNTIFttYWlsdG86YmVzcy1ib3VuY2VzQGlldGYub3Jn XSBPbiBCZWhhbGYgT2YgTWFydGluIFZpZ291cmV1eA0KPiBTZW50OiBGcmlkYXksIERlY2VtYmVy IDE1LCAyMDE3IDE6MjQgUE0NCj4gVG86IGJlc3NAaWV0Zi5vcmcNCj4gU3ViamVjdDogUmU6IFti ZXNzXSBkcmFmdC1pZXRmLWJlc3MtZXZwbi1vdmVybGF5LTEwIFBNU0kgd2l0aCBJbmdyZXNzDQo+ IFJlcGxpY2F0aW9uDQo+IA0KPiBpZiB0aGUgaW50ZW50IHdhcyB0byBoZWxwIHBlb3BsZSBiZXR0 ZXIgdW5kZXJzdGFuZCB0aGUgcmVhc29uaW5nIGJlaGluZCB0aGUNCj4gZGVzaWduLCBpcyBpdCBy ZWFsbHkgYmVzdCB0byByZW1vdmUgaXQ/DQo+IFdvdWxkbid0IGEgcmVwaHJhc2luZyBiZSBtb3Jl 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aXN0aW5mb19iZXNzJmQ9RHdJR2FRJmM9SEFrWXVoNjNyc3VocjZTDQo+IGNiZmgwVWpCWGVNSy1u ZGIzdm9EVFhjV3pvQ0kmcj1DUkIydEppUWVQazBjVC1oNUxHaEVXSC0NCj4gc194WFh1cDNIenZC U01SajVWRSZtPTF4OGFGT3ZrX1JQMDNmeXEzSUJwWndCdEp4anFVajRRX1NVcVktDQo+IEozaG1z JnM9dVdiRUh2cWc3dDc4WEktTU5DMWRxSEtzRTZZdGRvZVNHeTlnZHhkU1FxOCZlPQ0K From nobody Mon Dec 18 11:15:45 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0DC5C12D853 for ; Mon, 18 Dec 2017 11:15:41 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.449 X-Spam-Level: * X-Spam-Status: No, score=1.449 tagged_above=-999 required=5 tests=[DOS_OUTLOOK_TO_MX=1.449] autolearn=no 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 Hx2iLhGdbm_M for ; Mon, 18 Dec 2017 11:15:39 -0800 (PST) Received: from hickoryhill-consulting.com (50-245-122-97-static.hfc.comcastbusiness.net [50.245.122.97]) (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 F0DC21277BB for ; Mon, 18 Dec 2017 11:15:32 -0800 (PST) X-Default-Received-SPF: pass (skip=loggedin (res=PASS)) x-ip-name=166.177.58.28; From: "Susan Hares" To: , "'Thomas Morin'" Cc: References: <20181_1512146931_5A2187F3_20181_172_1_1512146931.4117.139.camel@orange.com> <73458a60-df4e-70ff-03b7-f998837981fa@nokia.com> <37B07F60-E58B-4197-B253-58CE21DD689E@cisco.com> <036d01d375d2$b2f46760$18dd3620$@olddog.co.uk> In-Reply-To: <036d01d375d2$b2f46760$18dd3620$@olddog.co.uk> Date: Mon, 18 Dec 2017 14:15:24 -0500 Message-ID: <023a01d37834$8ebcb280$ac361780$@ndzh.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQKc/1dBjforfr7r1aB4XvekYA5tlAGIuU7RAY9GhLMDm5Z/3gJog+GtoW04yAA= Content-Language: en-us X-Authenticated-User: skh@ndzh.com Archived-At: Subject: Re: [bess] New bess Co-Chair X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Dec 2017 19:15:41 -0000 Thomas: As one of the BGP family of Co-chairs you have been co-operative, helpful and pushed the BGP applications forward. Thank you for all you did in the last few years. Susan Hares -----Original Message----- From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Adrian Farrel Sent: Friday, December 15, 2017 1:30 PM To: Thomas Morin Cc: bess@ietf.org Subject: Re: [bess] New bess Co-Chair > > Welcome Stephane! :) > > Be aware that co-chairing bess comes with the risk of being possibly > > misrepresented [1]. > > > > [1] https://twitter.com/LlanOldDog/status/643796807852630016 Thanks for all the hard work over the years, Thomas. I have to promise that the quote was genuine. I wouldn't want to be thought of as the sort of person who writes fairy tales. Adrian -- Buy someone a book for Christmas Tales from the Wood - Eighteen new fairy tales More Tales from the Wood - Eighteen MORE new fairy tales Tales from Beyond the Wood - A bumper collection of twenty-two new tales https://www.feedaread.com/profiles/8604/ http://www.amazon.co.uk/Tales-Wood-Adrian-Farrel/dp/1786100924 Or buy from me direct. _______________________________________________ BESS mailing list BESS@ietf.org https://www.ietf.org/mailman/listinfo/bess From nobody Thu Dec 21 01:23:12 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7DFDD1270FC for ; Thu, 21 Dec 2017 01:23:11 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.23 X-Spam-Level: X-Spam-Status: No, score=-4.23 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] 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 XsUkzZkT44bm for ; Thu, 21 Dec 2017 01:23:09 -0800 (PST) Received: from huawei.com (lhrrgout.huawei.com [194.213.3.17]) (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 315BA1200FC for ; Thu, 21 Dec 2017 01:23:09 -0800 (PST) Received: from lhreml706-cah.china.huawei.com (unknown [172.18.7.107]) by Forcepoint Email with ESMTP id E6AF72866BE0D for ; Thu, 21 Dec 2017 09:23:05 +0000 (GMT) Received: from NKGEML411-HUB.china.huawei.com (10.98.56.70) by lhreml706-cah.china.huawei.com (10.201.108.47) with Microsoft SMTP Server (TLS) id 14.3.361.1; Thu, 21 Dec 2017 09:23:07 +0000 Received: from NKGEML514-MBS.china.huawei.com ([169.254.3.248]) by nkgeml411-hub.china.huawei.com ([10.98.56.70]) with mapi id 14.03.0361.001; Thu, 21 Dec 2017 17:22:56 +0800 From: Xiejingrong To: "bess@ietf.org" CC: Xiejingrong Thread-Topic: [bess] Comments on draft-ietf-bess-mvpn-expl-track-03 Thread-Index: AdN6NEanDCpPv20UQYKcimcePljNRg== Date: Thu, 21 Dec 2017 09:22:56 +0000 Message-ID: <16253F7987E4F346823E305D08F9115A99A06375@nkgeml514-mbs.china.huawei.com> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.217.214] Content-Type: multipart/alternative; boundary="_000_16253F7987E4F346823E305D08F9115A99A06375nkgeml514mbschi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: [bess] Comments on draft-ietf-bess-mvpn-expl-track-03 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Dec 2017 09:23:11 -0000 --_000_16253F7987E4F346823E305D08F9115A99A06375nkgeml514mbschi_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I have a comment on draft-ietf-bess-mvpn-expl-track-03. The chap 5.3 of this document said: Furthermore, if the PTA specifies "no tunnel info", the LIR and LIR-pF flags in the PTA MUST be passed along unchanged. This will ensure that an egress ABR/ASBR only sends a Leaf A-D route in response to a "match for tracking" if it is on the path to an egress PE for the flow(s) identified in the corresponding S-PMSI A-D route. The issue is as follow: In a [IngressPE--EgressABR--EgressPE] topology, IngressPE send a Wildcard S= -PMSI(*,*) route with PTA(flag), whose NLRI is donated as SPMS= I(type<0/1/2>RD,*,*,IngressPE). This SPMSI route will be relayed by EgressA= BR to EgressPE with PTA flag untouched. Then EgressPE will generate ONE Lea= fAD route with NLRI(type<0/1/2>RD,*,*,IngressPE,EgressPE) and RT= and N(N>=3D0) LeafAD routes with NLRI(type<16/17/18>RD,S,G,IngressPE,Egres= sPE) and RT. All according to chap 5.2 of this document. Then according to chap 5.3 of this document: IngressABR will only send a Leaf A-D route, It should be the ONE of LeafAD(= type<0/1/2RD,*,*,IngressPE,EgressABR) with RT. Then how should IngressABR deal with the the N(N>=3D0) LeafAD routes with N= LRI(type<16/17/18>RD,S,G,IngressPE,EgressPE) and RT ? It is not clarified in RFC7524 either. See chap 7.1 of RFC7524, which only = clarify LeafAD route with type<0/1/2>RD. Should such LeafAD route with type<16/17/18>RD be accepted and installed by= EgressABR, and then 'relay' back to IngressPE, and thus enable IngressPE e= xplicit tracking inside the ingress "segmentation domain" ? Thanks. XieJingrong --_000_16253F7987E4F346823E305D08F9115A99A06375nkgeml514mbschi_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

I have a comment on draft-ietf-bess-mvpn-expl-= track-03.

 

The chap 5.3 of this document said:=

 

Furthermore, if the PTA specifies "no tunnel info&= quot;, the LIR and LIR-pF

flags in the PTA MUST be passed along unchanged.

 

   This will ensure that an egress A= BR/ASBR only sends a Leaf A-D route 

   in response to a "match for = tracking" if it is on the path to an

   egress PE for the flow(s) identif= ied in the corresponding S-PMSI A-D

   route.

 

The issue is as follow:

In a [IngressPE--EgressABR--EgressPE] topology= , IngressPE send a Wildcard S-PMSI(*,*) route with PTA(flag<LIR+LIR-= pF>), whose NLRI is donated as  SPMSI(type<0/1/2>RD,*,*,IngressPE). T= his SPMSI route will be relayed by EgressABR to EgressPE with PTA flag unto= uched. Then EgressPE will generate ONE LeafAD route with NLRI(type<0/1/2= >RD,*,*,IngressPE,EgressPE) and RT<EgressABR> and N(N>=3D0) LeafAD routes with NLRI(type<16/17/18>RD,S,G,Ingres= sPE,EgressPE) and RT<EgressABR>. All according to chap 5.2 of this do= cument.

 

Then according to chap 5.3  of this docum= ent:

IngressABR will only send a Leaf A-D route, It= should be the ONE of LeafAD(type<0/1/2RD,*,*,IngressPE,EgressABR) with RT<IngressABR>.

Then how should IngressABR deal with the the N= (N>=3D0) LeafAD routes with NLRI(type<16/17/18>RD,S,G,IngressPE,Eg= ressPE) and RT<EgressABR> ?

It is not clarified in RFC7524 either. See cha= p 7.1 of RFC7524, which only clarify LeafAD route with type<0/1/2>RD.

Should such LeafAD route with type<16/17/18= >RD be accepted and installed by EgressABR, and then ‘relay’ back to IngressPE, and thus enable IngressPE explicit tracking inside the = ingress “segmentation domain” ?

 

Thanks.

 

XieJingrong

 

 

 

--_000_16253F7987E4F346823E305D08F9115A99A06375nkgeml514mbschi_-- From nobody Thu Dec 21 06:16:56 2017 Return-Path: X-Original-To: bess@ietf.org Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 657AE12D880; Thu, 21 Dec 2017 06:16:50 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Vijay Gurbani To: Cc: draft-ietf-bess-evpn-overlay.all@ietf.org, ietf@ietf.org, bess@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.68.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <151386581037.12921.16380046165179697315@ietfa.amsl.com> Date: Thu, 21 Dec 2017 06:16:50 -0800 Archived-At: Subject: [bess] Genart last call review of draft-ietf-bess-evpn-overlay-10 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Dec 2017 14:16:50 -0000 Reviewer: Vijay Gurbani Review result: Ready I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at . Document: draft-ietf-bess-evpn-overlay-?? Reviewer: Vijay Gurbani Review Date: 2017-12-21 IETF LC End Date: 2017-12-22 IESG Telechat date: 2018-01-11 Summary: The draft is ready as a PS. It has one Minor issue that needs some discussion. Major issues: None. Minor issues: One. Nits/editorial comments: None. Minor issues: In S13 (IANA Considerations), I am not sure whether this draft is allocating the tunnel types or not. The responsible IANA registry [0] shows that the tunnel types mentioned in this draft are already allocated through a precursor individual draft [1], which has long expired. However, when I look at the IANA Consideration section in [1], it is empty! So I am not sure how the IANA registry in [0] received the allocations. I think the IANA section of this draft needs to be updated accordingly. [0] https://www.iana.org/assignments/bgp-parameters/bgp-parameters.xhtml#tunnel-types [1] http://www.iana.org/go/draft-sd-l2vpn-evpn-overlay (the expired individual draft itself is at https://tools.ietf.org/html/draft-sd-l2vpn-evpn-overlay-03) From nobody Fri Dec 22 05:34:22 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6422112E88C; Fri, 22 Dec 2017 05:34:07 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.438 X-Spam-Level: X-Spam-Status: No, score=-2.438 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, HTML_OBFUSCATE_05_10=0.26, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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 W1dsoIXG0Ieo; Fri, 22 Dec 2017 05:34:05 -0800 (PST) Received: from mail-oi0-x230.google.com (mail-oi0-x230.google.com [IPv6:2607:f8b0:4003:c06::230]) (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 533C912D859; Fri, 22 Dec 2017 05:34:05 -0800 (PST) Received: by mail-oi0-x230.google.com with SMTP id u193so18944406oie.1; Fri, 22 Dec 2017 05:34:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:in-reply-to:references:mime-version:date:message-id:subject:to :cc; bh=fDHl+0KfV7l2BwGMG3SYnVWHJCZdN8D5miUyyrA+WCY=; b=sK2+RljTlYMJYM6qXekUpPmzdMaeuGc2aRrqy/yKN0hN7RWLc40vIpRLL4mLYquzvu Gs6Crn4vSVVP4FHVDHPDgI0IYWVhwtnytAhwMB+eNt9REKbC8fcDwGpIS60htuxeU8xn 1iynMvKzU0jSNIGmGMIui1ZZV6HvkztEsRCYUovUnWZBb+7uifhNoaPic/31SF/W796y x5PVOWzEsVhVbjXRsEDf7MN/N0kKE+DtUQm5KaP/i1T4hStiO6xxNwlrmutzAFAECOH2 3gCnV3PCsXkNc0Oo44oHo2Z5BwAIajr920hPFmVc0n720dUbSjwZJXoNV03h7Hy66Uuh WqqQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:in-reply-to:references:mime-version:date :message-id:subject:to:cc; bh=fDHl+0KfV7l2BwGMG3SYnVWHJCZdN8D5miUyyrA+WCY=; b=H5IMZ2uldk2XbItcZjK1iPAOYlX2NPyWSmG0YswjZuxYpGzz/uPKIHvLz0LgZlhd53 UDV3kKWJuzapFHmfM3mUiNJnHr2/lLdiVTso3Ij1IGncO7xtEmSgVeGS8dAZpZP5wjcR 8JvqTU2HNqIk75V7avhf/JR6apv5OgnJES13jsIvDouu7NvTSQ8HYKxT63JjV8i951Rd LbixBkbRiu8IozUOMVGMflGXY2LMJLaW8uvU286DbSJC1vdTcu6OZtmWhQqdzQsiM/yU k+mYzfUjrz62X9GfIRoAV30yrNlZrW0puS+DefVOjbPA0Lxyjz1BfmqwlmyqtZSUmk6Q LWzw== X-Gm-Message-State: AKGB3mI2nvlAGsWkMb7zO3EwiID/3M6naWPKAQqlZNrFLRimzl9f2fOw LOQhVoYEAjHle+lYRaY89kUkcmOrr3TzqCihPzE= X-Google-Smtp-Source: ACJfBotxLNxAcO2iN3qWli4DK1rmr2g6GuufW2scAzmyhWJ55qKcY87YJOrc0WKRy0hnygSsCxoQkerrpuI2VJdZ0xk= X-Received: by 10.202.114.88 with SMTP id p85mr9486694oic.214.1513949644610; Fri, 22 Dec 2017 05:34:04 -0800 (PST) Received: from 1058052472880 named unknown by gmailapi.google.com with HTTPREST; Fri, 22 Dec 2017 08:34:03 -0500 From: Alvaro Retana In-Reply-To: <151386581037.12921.16380046165179697315@ietfa.amsl.com> References: <151386581037.12921.16380046165179697315@ietfa.amsl.com> X-Mailer: Airmail (467) MIME-Version: 1.0 Date: Fri, 22 Dec 2017 08:34:03 -0500 Message-ID: To: Vijay Gurbani , draft-ietf-bess-evpn-overlay.all@ietf.org Cc: bess@ietf.org, ietf@ietf.org, gen-art@ietf.org Content-Type: multipart/alternative; boundary="001a11c17420c662550560edde50" Archived-At: Subject: Re: [bess] Genart last call review of draft-ietf-bess-evpn-overlay-10 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Dec 2017 13:34:08 -0000 --001a11c17420c662550560edde50 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Vijay: Hi! Thanks for your review! The registry has a FCFS registration policy, so at some point in the life of draft-sd-l2vpn-evpn-overlay the code points were requested =E2=80=94 not necessarily in the draft itself. Even though draft-ietf-bess-evpn-overlay is tagged in the datatracker to have replaced draft-sd-l2vpn-evpn-overlay, I think you make a good point in that the registry needs to be updated with the current/correct information. Authors: Please add a note in the IANA Considerations Section to have the reference in the registry point to this document. Thanks! Alvaro. On December 21, 2017 at 9:16:53 AM, Vijay Gurbani (vkg@acm.org) wrote: Minor issues: In S13 (IANA Considerations), I am not sure whether this draft is allocatin= g the tunnel types or not. The responsible IANA registry [0] shows that the tunnel types mentioned in this draft are already allocated through a precursor individual draft [1], which has long expired. However, when I look at the IANA Consideration section in [1], it is empty! So I am not sure how the IANA registry in [0] received the allocations. I think the IANA section of this draft needs to be updated accordingly. [0] https://www.iana.org/assignments/bgp-parameters/bgp-parameters.xhtml#tunnel= -types [1] http://www.iana.org/go/draft-sd-l2vpn-evpn-overlay (the expired individual draft itself is at https://tools.ietf.org/html/draft-sd-l2vpn-evpn-overlay-03) --001a11c17420c662550560edde50 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable =
Vijay:

<= /div>
Hi!

Thanks for your review!
<= div id=3D"bloop_customfont" style=3D"margin:0px"><= br>
The registry has a FCFS registration policy, so at some poi= nt in the life of=C2=A0draft-sd-l2vpn-evpn-overlay the code points were req= uested =E2=80=94 not necessarily in the draft itself.

Even though draft-ietf-bess-evpn-overlay is tagged in the datatra= cker to have replaced draft-sd-l2vpn-evpn-overlay, I think you make a good = point in that the registry needs to be updated with the current/correct inf= ormation.

Authors: =C2=A0Please add a note i= n the IANA Considerations Section to have the reference in the registry poi= nt to this document.

Thanks!

<= /font>
Alvaro.

On December 21, 2017 at 9:16:53 = AM, Vijay Gurbani (vkg@acm.org) wrote:

Minor issues:=C2=A0
In S13 (IANA Consi= derations), I am not sure whether this draft is allocating=C2=A0
the= tunnel types or not. The responsible IANA registry [0] shows that the=C2=A0
tunnel types mentioned in this draft are already allocated through= a precursor=C2=A0
individual draft [1], which has long expired. How= ever, when I look at the IANA=C2=A0
Consideration section in [1], it= is empty! So I am not sure how the IANA=C2=A0
registry in [0] recei= ved the allocations. I think the IANA section of this=C2=A0
draft ne= eds to be updated accordingly.=C2=A0<= /span>

[0]=C2=A0
https://www.iana.org/assignments/bgp-parameters/bgp-parameters.xhtml#tu= nnel-types=C2=A0
[1]=C2=A0http://www.iana.org/go/draft-sd-l2vpn-evpn-overlay=C2=A0(the expired indivi= dual=C2=A0
draft itself is at= =C2=A0https://tools.ietf.org/html/draft-sd-l2vpn-evpn-overlay-03<= span style=3D"color:rgb(0,0,0);font-variant-caps:normal;letter-spacing:norm= al;text-align:start;text-indent:0px;text-transform:none;white-space:normal;= word-spacing:0px;background-color:rgb(255,255,255);float:none;display:inlin= e!important">)=C2=A0
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(Also copying the 12 "authors" ;-)) Section 1 ...    To provide SRv6-VPN service with best-effort connectivity, the egress    PE signals an SRv6-VPN SID with the VPN route.  The ingress PE    encapsulates the VPN packet in an outer IPv6 header where the    destination address is the SRv6-VPN SID provided by the egress PE.    The underlay between the PE's only need to support plain IPv6    forwarding [RFC2460]. **** This suggests that an IPv6 address has to be assigned to each VRF (for **** per-VRF "labeling"), or even to each CE (for per-CE labeling). **** Presumably these would be taken from an IPv6 prefix owned by the **** advertising PE?  Or not? **** If those addresses are routable, doesn't this create a security issue **** as discussed in RFC 4023 Section 8.2? Section 3 ...    For egress-PEs which supports SRv6-VPN advertises an SRv6-VPN SID    with VPN routes.  This SRv6-VPN SID only has local significance at    the egress-PE where it is allocated or configured on a per-CE or per-    VRF basis. **** The phrase "only has local significance" suggests that these SIDs are **** not routable. But later on there is a suggestion that they are **** routable, or at least that they might be. ...    In practice, the SID encodes a cross-connect to a    specific Address Family table (END.DT) or next-hop/interface (END.DX)    as defined in the SRv6 Network Programming Document    [I-D.filsfils-spring-srv6-network-programming] **** I'm not sure what is meant by "in practice".  Aren't these semantics **** NECESSSARY in order to provide the L3VPN service?    The SRv6 VPN SID MAY be routable within the AS of the egress-PE and    serves the dual purpose of providing reachability between ingress-PE    and egress-PE while also encoding the VPN identifier. **** Did you mean:    The SRv6 VPN SID MAY be routable all along the path from the ingress-PE    to the egress-PE, and if so, MAY serve the dual purpose of providing    reachability between ingress-PE and egress-PE while also encoding the VPN    identifier. **** Though I guess if the SID is routable only in the egress AS, one could **** tunnel to an entry point of that AS and then route within the AS based **** on the SID.  (Of course this amplifies the spoofing problem discussed **** in Section 8.2 of RFC 4023.) **** So there are a number of options: **** - not routable **** - globally routable **** - routable only within egress AS **** If the intention is to allow all those options, please explain the **** signaling that lets the ingress PE know which option to use.  Or is the **** intention that this is known a priori (i.e., via provisioning)?    To support SRv6 based L3VPN overlay, a SID is advertised with BGP    MPLS L3VPN route update[RFC4364].  SID is encoded in a SRv6-VPN SID    TLV, which is optional transitive BGP Prefix SID    attribute[I-D.ietf-idr-bgp-prefix-sid].  This attribute serves two    purposes; first it indicates that the BGP egress device is reachable    via an SRv6 underlay **** Whether the egress PE is reachable via an SRv6 underlay has nothing to **** do with the presence or absence of the SRv6-VPN SID TLV.  The presence **** of that TLV really only means that the egress PE can handle the SRv6 **** encapsulation for L3VPN.    and the BGP ingress device receiving this route    MAY choose to encapsulate or insert an SRv6 SRH, second it indicates    the value of the SID to include in the SRH encapsulation.  For L3VPN,    only a single SRv6-VPN SID MAY be necessary. **** I don't understand the phrase "only a single SRv6-VPN SID MAY be **** necessary".    A BGP speaker supporting an SRv6 underlay MAY distribute SID per route    via the BGP SRv6-VPN Attribute. **** I think you mean "If a PE supports an SRv6 underlay, it may attach the **** BGP SRv6-VPN attribute to the VPN-IP routes that it originates".    If the BGP speaker supports MPLS based    L3VPN simultaneously, it MAY also populate the Label values in L3VPN    route types and allow the BGP ingress device to decide which    encapsulation to use.  If the BGP speaker does not support MPLS based    L3VPN services the MPLS Labels in L3VPN route types MUST be set to    IMPLICIT-NULL. **** Please provide a reference that specifies how you set the Label field **** of a SAFI-4 or SAFI-128 route to "implicit null".  I don't recall any **** such thing existing in RFC 3107, 4364, or 8277. **** If you mean "set to zero", I think that will generally be interpreted **** in a SAFI-4 or SAFI-128 route as "push on label 0 (explicit null)". **** If you mean "set to three" (the value defined in RFC 3032 to represent **** "implicit null"), I don't think the SAFI-4/SAFI-128 implementations **** generally interpret the value three in that manner. **** I'm not really sure what you're trying to do here. There are at least **** four cases to consider: **** 1. For the case where the backbone doesn't have MPLS, there is no harm **** in saying "set the label to zero". **** 2. For the case where the backbone supports both MPLS and SRv6, and **** some PEs support L3VPN both ways, while others support only MPLS-based **** L3VPN, then a real label needs to be put in. **** 3. For the case where the backbone supports both MPLS and SRv6, but a **** particular egress PE only supports SRv6, there needs to be some way to **** instruct the ingress PEs to use SRv6 and not MPLS. Perhaps the **** presence of the prefix-SID attribute with VPN-SID TLV is sufficient. **** 4. For the case where the backbone supports both MPLS and SRv6, the **** egress PE supports both for transit, but the egress PE only supports **** SRv6 for L3VPN, the label in the SAFI-1/SAFI-128 routes should be a **** value that will cause the egress PE to discard the packet.  If there **** happens to be an ingress PE that only supports the MPLS style of L3VPN, **** this will prevent the egress PE from misrouting MPLS packets that **** arrive from that ingress PE.  (This would be an odd, probably **** transitional, deployment.  But the draft isn't very explicit about just **** what combinations of MPLS and SRv6 it is supposed to support.) **** In any event, the draft would be better off specifying the actual label value **** to be included rather than saying "implicit null". This occurs several **** times in the draft. Section 3.1 ...    SRv6-VPN SID is encoded as part of the SRv6-VPN SID TLV defined in    Section 2.  The function of the SRv6 SID is entirely up to the    originator of the advertisement.  In practice, the function may    likely be End.DX4 or End.DT4. **** Obviously, the behavior is not up to the originator, it MUST provide **** the functionality necessary to provide the behavior that would have been **** provided by the MPLS label(s).  Statements like this occur several **** times in the draft and should all be fixed. Section 4 ...    Ethernet VPN(EVPN), as defined in [RFC7432] provides an extendable    method of building an EVPN overlay.  It primarily focuses on MPLS    based EVPNs but calls out the extensibility to IP based EVPN    overlays.  It defines 4 route-types which carry prefixes and MPLS    Label attributes, the Labels each have specific use for MPLS    encapsulation of EVPN traffic.  The fifth route-type carrying MPLS    label information (and thus encapsulation information) for EVPN is    defined in[I-D.ietf-bess-evpn-prefix-advertisement].    The Route Types discussed below are: **** After carefully counting up to five route types, the document then proceeds to identify eight route types ;-) **** And there are lots more on the way! Section 4.1.1 ...    SRv6-VPN TLV MAY be advertised along with the route advertisement and    the behavior of the SRv6-VPN SID is entirely up to the originator of    the advertisement.  In practice, the behavior would likely be    Arg.FE2. **** This seems to require that a unique IPv6 address be assigned to each **** ES.  Is that the intention?  If so, then probably those addresses **** should not be routable. ... Section 4.3 ...    An Inclusive Multicast Ethernet Tag route type specific EVPN NLRI    consists of the following [RFC7432] where:    o  BGP next-hop: IPv6 address of egress PE **** I don't think there is any reason for this document to specify the **** contents of the NH field of the IMET route.  The above doesn't make **** much sense anyway, as the term "egress PE" doesn't really make sense in **** the context of the IMET route, and the next hop can change as the route **** is propagated.    o  SRv6-VPN TLV MAY encode END.DX2/END.DT2M function.    o  BGP Attribute: PMSI Tunnel Attribute[RFC6514] MAY contain MPLS       implicit-null label and Tunnel Type would be similar to defined in       EVPN Type-6 i.e. Ingress replication route. **** Is the intention to prohibit the use of either P2MP tunnels or assisted **** replication in an SRv6 overlay?  That seems to be a consequence of the **** above.  If that's the intention, please say so explicitly and do not **** leave it as an inference.  If that's not the intention, then do not say **** what the tunnel type should be.    The format of PMSI Tunnel Attribute attribute is encoded as follows    for an SRv6 Core:                   +---------------------------------------+                   |  Flag (1 octet)                       |                   +---------------------------------------+                   |  Tunnel Type (1 octet)                |                   +---------------------------------------+                   |  MPLS label (3 octet)                 |                   +---------------------------------------+                   |  Tunnel Identifier (variable)         |                   +---------------------------------------+    o  Flag: zero value defined per [RFC7432] **** The EVPN specs (of which RFC 7432 is not the only one) use five or six **** of the PMSI tunnel attribute flags.  This spec should not say to set **** the flags to zero, unless it is meant to prohibit the use of any **** function requiring the flags.    o  Tunnel Type: defined per [RFC6514]    o  MPLS label: Implicit-Null **** MPLS label should be zero; in the PMSI Tunnel attribute, it is clear **** that zero means "no label is specified".    o  Tunnel Identifier: IP address of egress PE **** This makes no sense when P2MP tunnels are used. **** For IR, the tunnel identifier is the identifier of the PE originating **** the route, per RFC 7432 section 11.2. **** Note that this will require that a unique IPv6 address be assigned to **** each Broadcast Domain; that should be stated explicitly. **** In a draft entitled " BGP Signaling of IPv6-Segment-Routing-based VPN **** Networks", it would be nice if the following little details were **** mentioned explicitly: **** - In L3VPN, an IPv6 address must be assigned to each VRF (or to each ****   VRF interface) **** - In EVPN, an IPv6 address must be assigned to each ES. **** - In EVPN, an IPv6 address must be assigned to each BD. **** It would also be nice if multicast were covered in both MVPN and EVPN. ... 6.  Implementation Status    The SRv6-VPN is available for SRv6 on various Cisco hardware and    other software platforms. **** Does it provide the full set of L3VPN/EVPN features? If not, **** what subset of features are supported?  Does it support **** transitional scenarios without relying on non-standard **** behaviors? ... 7.  Error Handling of BGP SRv6 SID Updates    When a BGP Speaker receives a BGP Update message containing a    malformed SRv6-VPN SID TLV, it MUST ignore the received BGP    attributes and not pass it to other BGP peers.  This is equivalent to    the -attribute discard- action specified in [RFC7606].  When    discarding an attribute, a BGP speaker MAY log an error for further    analysis. **** If the attribute is discarded, and there is no label (or the backbone) **** doesn't support MPLS, what will happen to the VPN traffic? Can it be **** misdelivered outside the VPN?  That wouldn't be very good. From nobody Thu Dec 28 09:14:53 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5D9DE12D94A; Thu, 28 Dec 2017 09:14:51 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.398 X-Spam-Level: X-Spam-Status: No, score=-1.398 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-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=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 RAPxKV0zpont; Thu, 28 Dec 2017 09:14:48 -0800 (PST) Received: from mail-wr0-x236.google.com (mail-wr0-x236.google.com [IPv6:2a00:1450:400c:c0c::236]) (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 9AA9612706D; Thu, 28 Dec 2017 09:14:47 -0800 (PST) Received: by mail-wr0-x236.google.com with SMTP id 36so6450688wrh.1; Thu, 28 Dec 2017 09:14:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=drKq8GYbAElRuyHqLfoAKazbUPLzik4UNzdXNu+mV2A=; b=vePKSuQlMfKjSkYE8W+E+qVS+L7Fzxyf5qJYS12mK3cidSaQsYMoRCF8UtGfTGXEBs MLXIAE9m473/EKaCoZo/5XUEGwKMH/rEu6ur1wKT7gbv+VWoNhKmcSsXUrHeUHjO+spL oK6JtnCzr7DPEYcdxdr6cI7afIu/lGPk+LunYQRpxWMyC19NuIBjRVzOb86KlUYJV2ra aaT/7cHbPBU3q1WISoAC7nB5YgtAxMaZJKgVtcJqU3cqLBCeQR6ed9aDTS4f9rnh1n13 1nz2kY1q90o2YuDH416mWHzjFKZzKO4OfbAk8V34pIfa/4Nuqi7ZtE6NwRuE161Kc+HM 73sw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=drKq8GYbAElRuyHqLfoAKazbUPLzik4UNzdXNu+mV2A=; b=RUVsN4rkX2SKz/91aqyXRrnuZDr4HgLgGGrDMcPzTtdok99KaYlngsJJ2qYioCpUTk lkgTt2qHgB8iCDtrhaLJOciexNZ3Vt27Hc7LcgaUgMx2hkrwoNP5dmHAo9Jpg8URUFUX SD7VveTZddi1t/0Cp53gMsY71EyQD4lKF/YYDye+tpv4PPsCCcoV78cXRlSeTg70UZNw yMxc+Zt64Qfk/O3A9J9T1kOe5SOlL3rLgUnuEe0DywhYoCHKWhfjHtMEua9GAu5F91vD 5dB/xO+5FdRfchwieFYTmrZHIJxgBIQ1DxDU9o16J1vLx5xyoUY+IEsX1/w8piLfipIg uR9Q== X-Gm-Message-State: AKGB3mJSUMVWqSPX2K2Hh7E5x02UZ74bq6sZ9eVoXeMZEo6znDSN8Uof 2Hc7+J0rb7s86p1r3QF6CQfVS4x4ipOAD1DyKpY= X-Google-Smtp-Source: ACJfBouQEN7rADsPwdZXL7kBs0HUY1YgIMZNBmycmNbFg3YjPipfhKYoxXsTPUMAu/XAFbbFyzuHPN7hPyZ9U+WTU34= X-Received: by 10.223.201.6 with SMTP id m6mr29639645wrh.107.1514481285799; Thu, 28 Dec 2017 09:14:45 -0800 (PST) MIME-Version: 1.0 Sender: rraszuk@gmail.com Received: by 10.28.54.217 with HTTP; Thu, 28 Dec 2017 09:14:45 -0800 (PST) In-Reply-To: References: From: Robert Raszuk Date: Thu, 28 Dec 2017 18:14:45 +0100 X-Google-Sender-Auth: Od0opGjXjutj55PQN9OnRVWmIlA Message-ID: To: Eric C Rosen Cc: "bess@ietf.org" , draft-dawra-idr-srv6-vpn.authors@ietf.org, spring@ietf.org Content-Type: multipart/alternative; boundary="089e082f9bbc0f22b9056169a70e" Archived-At: Subject: Re: [bess] Comments on draft-dawra-idr-srv6-vpn-03 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Dec 2017 17:14:51 -0000 --089e082f9bbc0f22b9056169a70e Content-Type: text/plain; charset="UTF-8" Hi Eric, A lot of your comments are an indication that you treat SID to be IPv6 address fully responsible for demux to proper VRF or CE. This was never the intention. Imagine egress PE having /64 loopback. Then you have remaining 64 bits to put there a 20 bit VPN label (as we know it :) and even much more then that. You can attach new arbitrary new functions to this single "VPN SID". And further notice that this has no bearing on SID being routable or not. Only the first /64 bits of the dst address need to be routable in order for forwarding packets to happen ... So by no means there should be a case to have per vrf IPv6 address or per CE IPv6 address and make it fully /128 routable. Happy New Year ! Robert. On Thu, Dec 28, 2017 at 5:44 PM, Eric C Rosen wrote: > Following are a few comments (look for lines beginning ****) on > draft-dawra-idr-srv6-vpn-03. The name of the draft notwithstanding, I > think this is clearly a draft that falls within the scope of BESS, so I've > sent my comments to the BESS list. (Also copying the 12 "authors" ;-)) > > Section 1 > > ... > > To provide SRv6-VPN service with best-effort connectivity, the egress > PE signals an SRv6-VPN SID with the VPN route. The ingress PE > encapsulates the VPN packet in an outer IPv6 header where the > destination address is the SRv6-VPN SID provided by the egress PE. > The underlay between the PE's only need to support plain IPv6 > forwarding [RFC2460]. > > **** This suggests that an IPv6 address has to be assigned to each VRF (for > **** per-VRF "labeling"), or even to each CE (for per-CE labeling). > **** Presumably these would be taken from an IPv6 prefix owned by the > **** advertising PE? Or not? > > **** If those addresses are routable, doesn't this create a security issue > **** as discussed in RFC 4023 Section 8.2? > > Section 3 > > ... > > For egress-PEs which supports SRv6-VPN advertises an SRv6-VPN SID > with VPN routes. This SRv6-VPN SID only has local significance at > the egress-PE where it is allocated or configured on a per-CE or per- > VRF basis. > > **** The phrase "only has local significance" suggests that these SIDs are > **** not routable. But later on there is a suggestion that they are > **** routable, or at least that they might be. > > ... > > In practice, the SID encodes a cross-connect to a > specific Address Family table (END.DT) or next-hop/interface (END.DX) > as defined in the SRv6 Network Programming Document > [I-D.filsfils-spring-srv6-network-programming] > > **** I'm not sure what is meant by "in practice". Aren't these semantics > **** NECESSSARY in order to provide the L3VPN service? > > The SRv6 VPN SID MAY be routable within the AS of the egress-PE and > serves the dual purpose of providing reachability between ingress-PE > and egress-PE while also encoding the VPN identifier. > > **** Did you mean: > > The SRv6 VPN SID MAY be routable all along the path from the ingress-PE > to the egress-PE, and if so, MAY serve the dual purpose of providing > reachability between ingress-PE and egress-PE while also encoding the > VPN > identifier. > > **** Though I guess if the SID is routable only in the egress AS, one could > **** tunnel to an entry point of that AS and then route within the AS based > **** on the SID. (Of course this amplifies the spoofing problem discussed > **** in Section 8.2 of RFC 4023.) > > **** So there are a number of options: > **** - not routable > **** - globally routable > **** - routable only within egress AS > > **** If the intention is to allow all those options, please explain the > **** signaling that lets the ingress PE know which option to use. Or is > the > **** intention that this is known a priori (i.e., via provisioning)? > > To support SRv6 based L3VPN overlay, a SID is advertised with BGP > MPLS L3VPN route update[RFC4364]. SID is encoded in a SRv6-VPN SID > TLV, which is optional transitive BGP Prefix SID > attribute[I-D.ietf-idr-bgp-prefix-sid]. This attribute serves two > purposes; first it indicates that the BGP egress device is reachable > via an SRv6 underlay > > **** Whether the egress PE is reachable via an SRv6 underlay has nothing to > **** do with the presence or absence of the SRv6-VPN SID TLV. The presence > **** of that TLV really only means that the egress PE can handle the SRv6 > **** encapsulation for L3VPN. > > and the BGP ingress device receiving this route > MAY choose to encapsulate or insert an SRv6 SRH, second it indicates > the value of the SID to include in the SRH encapsulation. For L3VPN, > only a single SRv6-VPN SID MAY be necessary. > > **** I don't understand the phrase "only a single SRv6-VPN SID MAY be > **** necessary". > > A BGP speaker supporting an SRv6 underlay MAY distribute SID per route > via the BGP SRv6-VPN Attribute. > > **** I think you mean "If a PE supports an SRv6 underlay, it may attach the > **** BGP SRv6-VPN attribute to the VPN-IP routes that it originates". > > If the BGP speaker supports MPLS based > L3VPN simultaneously, it MAY also populate the Label values in L3VPN > route types and allow the BGP ingress device to decide which > encapsulation to use. If the BGP speaker does not support MPLS based > L3VPN services the MPLS Labels in L3VPN route types MUST be set to > IMPLICIT-NULL. > > **** Please provide a reference that specifies how you set the Label field > **** of a SAFI-4 or SAFI-128 route to "implicit null". I don't recall any > **** such thing existing in RFC 3107, 4364, or 8277. > > **** If you mean "set to zero", I think that will generally be interpreted > **** in a SAFI-4 or SAFI-128 route as "push on label 0 (explicit null)". > > **** If you mean "set to three" (the value defined in RFC 3032 to represent > **** "implicit null"), I don't think the SAFI-4/SAFI-128 implementations > **** generally interpret the value three in that manner. > > **** I'm not really sure what you're trying to do here. There are at least > **** four cases to consider: > > **** 1. For the case where the backbone doesn't have MPLS, there is no harm > **** in saying "set the label to zero". > > **** 2. For the case where the backbone supports both MPLS and SRv6, and > **** some PEs support L3VPN both ways, while others support only MPLS-based > **** L3VPN, then a real label needs to be put in. > > **** 3. For the case where the backbone supports both MPLS and SRv6, but a > **** particular egress PE only supports SRv6, there needs to be some way to > **** instruct the ingress PEs to use SRv6 and not MPLS. Perhaps the > **** presence of the prefix-SID attribute with VPN-SID TLV is sufficient. > > **** 4. For the case where the backbone supports both MPLS and SRv6, the > **** egress PE supports both for transit, but the egress PE only supports > **** SRv6 for L3VPN, the label in the SAFI-1/SAFI-128 routes should be a > **** value that will cause the egress PE to discard the packet. If there > **** happens to be an ingress PE that only supports the MPLS style of > L3VPN, > **** this will prevent the egress PE from misrouting MPLS packets that > **** arrive from that ingress PE. (This would be an odd, probably > **** transitional, deployment. But the draft isn't very explicit about > just > **** what combinations of MPLS and SRv6 it is supposed to support.) > > **** In any event, the draft would be better off specifying the actual > label value > **** to be included rather than saying "implicit null". This occurs several > **** times in the draft. > > Section 3.1 > > ... > > SRv6-VPN SID is encoded as part of the SRv6-VPN SID TLV defined in > Section 2. The function of the SRv6 SID is entirely up to the > originator of the advertisement. In practice, the function may > likely be End.DX4 or End.DT4. > > **** Obviously, the behavior is not up to the originator, it MUST provide > **** the functionality necessary to provide the behavior that would have > been > **** provided by the MPLS label(s). Statements like this occur several > **** times in the draft and should all be fixed. > > Section 4 > > ... > > Ethernet VPN(EVPN), as defined in [RFC7432] provides an extendable > method of building an EVPN overlay. It primarily focuses on MPLS > based EVPNs but calls out the extensibility to IP based EVPN > overlays. It defines 4 route-types which carry prefixes and MPLS > Label attributes, the Labels each have specific use for MPLS > encapsulation of EVPN traffic. The fifth route-type carrying MPLS > label information (and thus encapsulation information) for EVPN is > defined in[I-D.ietf-bess-evpn-prefix-advertisement]. > > The Route Types discussed below are: > > **** After carefully counting up to five route types, the document then > proceeds to identify eight route types ;-) > > **** And there are lots more on the way! > > Section 4.1.1 > > ... > > SRv6-VPN TLV MAY be advertised along with the route advertisement and > the behavior of the SRv6-VPN SID is entirely up to the originator of > the advertisement. In practice, the behavior would likely be > Arg.FE2. > > **** This seems to require that a unique IPv6 address be assigned to each > **** ES. Is that the intention? If so, then probably those addresses > **** should not be routable. > > ... > > Section 4.3 > > ... > > An Inclusive Multicast Ethernet Tag route type specific EVPN NLRI > consists of the following [RFC7432] where: > > o BGP next-hop: IPv6 address of egress PE > > **** I don't think there is any reason for this document to specify the > **** contents of the NH field of the IMET route. The above doesn't make > **** much sense anyway, as the term "egress PE" doesn't really make sense > in > **** the context of the IMET route, and the next hop can change as the > route > **** is propagated. > > o SRv6-VPN TLV MAY encode END.DX2/END.DT2M function. > > o BGP Attribute: PMSI Tunnel Attribute[RFC6514] MAY contain MPLS > implicit-null label and Tunnel Type would be similar to defined in > EVPN Type-6 i.e. Ingress replication route. > > **** Is the intention to prohibit the use of either P2MP tunnels or > assisted > **** replication in an SRv6 overlay? That seems to be a consequence of the > **** above. If that's the intention, please say so explicitly and do not > **** leave it as an inference. If that's not the intention, then do not > say > **** what the tunnel type should be. > > The format of PMSI Tunnel Attribute attribute is encoded as follows > for an SRv6 Core: > > +---------------------------------------+ > | Flag (1 octet) | > +---------------------------------------+ > | Tunnel Type (1 octet) | > +---------------------------------------+ > | MPLS label (3 octet) | > +---------------------------------------+ > | Tunnel Identifier (variable) | > +---------------------------------------+ > > o Flag: zero value defined per [RFC7432] > > **** The EVPN specs (of which RFC 7432 is not the only one) use five or six > **** of the PMSI tunnel attribute flags. This spec should not say to set > **** the flags to zero, unless it is meant to prohibit the use of any > **** function requiring the flags. > > o Tunnel Type: defined per [RFC6514] > > o MPLS label: Implicit-Null > > **** MPLS label should be zero; in the PMSI Tunnel attribute, it is clear > **** that zero means "no label is specified". > > o Tunnel Identifier: IP address of egress PE > > **** This makes no sense when P2MP tunnels are used. > > **** For IR, the tunnel identifier is the identifier of the PE originating > **** the route, per RFC 7432 section 11.2. > > **** Note that this will require that a unique IPv6 address be assigned to > **** each Broadcast Domain; that should be stated explicitly. > > **** In a draft entitled " BGP Signaling of IPv6-Segment-Routing-based VPN > **** Networks", it would be nice if the following little details were > **** mentioned explicitly: > > **** - In L3VPN, an IPv6 address must be assigned to each VRF (or to each > **** VRF interface) > > **** - In EVPN, an IPv6 address must be assigned to each ES. > > **** - In EVPN, an IPv6 address must be assigned to each BD. > > **** It would also be nice if multicast were covered in both MVPN and EVPN. > > ... > > 6. Implementation Status > > The SRv6-VPN is available for SRv6 on various Cisco hardware and > other software platforms. > > **** Does it provide the full set of L3VPN/EVPN features? If not, > **** what subset of features are supported? Does it support > **** transitional scenarios without relying on non-standard > **** behaviors? > > ... > > 7. Error Handling of BGP SRv6 SID Updates > > When a BGP Speaker receives a BGP Update message containing a > malformed SRv6-VPN SID TLV, it MUST ignore the received BGP > attributes and not pass it to other BGP peers. This is equivalent to > the -attribute discard- action specified in [RFC7606]. When > discarding an attribute, a BGP speaker MAY log an error for further > analysis. > > **** If the attribute is discarded, and there is no label (or the backbone) > **** doesn't support MPLS, what will happen to the VPN traffic? Can it be > **** misdelivered outside the VPN? That wouldn't be very good. > > > > > > > --089e082f9bbc0f22b9056169a70e Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Eric,

A lot of your comments are an indication that you tr= eat SID to be IPv6 address fully responsible for demux to proper VRF or CE.= This was never the intention.=C2=A0

Imagine egress PE having /64 loopback. Then you have remaini= ng 64 bits to put there a 20 bit VPN label (as we know it :) and even much = more then that. You can attach new arbitrary new functions to this single &= quot;VPN SID".=C2=A0

And further notice that this has no bearing on SID being routable or no= t. Only the first /64 bits of the dst address need to be routable in order = for forwarding packets to happen ... So by no means there should be a case = to have per vrf IPv6 address or per CE IPv6 address and make it fully /128 = routable.=C2=A0

Happy = New Year !
Robert.


On Thu, D= ec 28, 2017 at 5:44 PM, Eric C Rosen <erosen@juniper.net> w= rote:
Following are a few comments (look = for lines beginning ****) on draft-dawra-idr-srv6-vpn-03.=C2=A0 The name of= the draft notwithstanding, I think this is clearly a draft that falls with= in the scope of BESS, so I've sent my comments to the BESS list. (Also = copying the 12 "authors" ;-))

Section 1

...

=C2=A0=C2=A0 To provide SRv6-VPN service with best-effort connectivity, the= egress
=C2=A0=C2=A0 PE signals an SRv6-VPN SID with the VPN route.=C2=A0 The ingre= ss PE
=C2=A0=C2=A0 encapsulates the VPN packet in an outer IPv6 header where the<= br> =C2=A0=C2=A0 destination address is the SRv6-VPN SID provided by the egress= PE.
=C2=A0=C2=A0 The underlay between the PE's only need to support plain I= Pv6
=C2=A0=C2=A0 forwarding [RFC2460].

**** This suggests that an IPv6 address has to be assigned to each VRF (for=
**** per-VRF "labeling"), or even to each CE (for per-CE labeling= ).
**** Presumably these would be taken from an IPv6 prefix owned by the
**** advertising PE?=C2=A0 Or not?

**** If those addresses are routable, doesn't this create a security is= sue
**** as discussed in RFC 4023 Section 8.2?

Section 3

...

=C2=A0=C2=A0 For egress-PEs which supports SRv6-VPN advertises an SRv6-VPN = SID
=C2=A0=C2=A0 with VPN routes.=C2=A0 This SRv6-VPN SID only has local signif= icance at
=C2=A0=C2=A0 the egress-PE where it is allocated or configured on a per-CE = or per-
=C2=A0=C2=A0 VRF basis.

**** The phrase "only has local significance" suggests that these= SIDs are
**** not routable. But later on there is a suggestion that they are
**** routable, or at least that they might be.

...

=C2=A0=C2=A0 In practice, the SID encodes a cross-connect to a
=C2=A0=C2=A0 specific Address Family table (END.DT) or next-hop/interface (= END.DX)
=C2=A0=C2=A0 as defined in the SRv6 Network Programming Document
=C2=A0=C2=A0 [I-D.filsfils-spring-srv6-network-programming]

**** I'm not sure what is meant by "in practice".=C2=A0 Aren&= #39;t these semantics
**** NECESSSARY in order to provide the L3VPN service?

=C2=A0=C2=A0 The SRv6 VPN SID MAY be routable within the AS of the egress-P= E and
=C2=A0=C2=A0 serves the dual purpose of providing reachability between ingr= ess-PE
=C2=A0=C2=A0 and egress-PE while also encoding the VPN identifier.

**** Did you mean:

=C2=A0=C2=A0 The SRv6 VPN SID MAY be routable all along the path from the i= ngress-PE
=C2=A0=C2=A0 to the egress-PE, and if so, MAY serve the dual purpose of pro= viding
=C2=A0=C2=A0 reachability between ingress-PE and egress-PE while also encod= ing the VPN
=C2=A0=C2=A0 identifier.

**** Though I guess if the SID is routable only in the egress AS, one could=
**** tunnel to an entry point of that AS and then route within the AS based=
**** on the SID.=C2=A0 (Of course this amplifies the spoofing problem discu= ssed
**** in Section 8.2 of RFC 4023.)

**** So there are a number of options:
**** - not routable
**** - globally routable
**** - routable only within egress AS

**** If the intention is to allow all those options, please explain the
**** signaling that lets the ingress PE know which option to use.=C2=A0 Or = is the
**** intention that this is known a priori (i.e., via provisioning)?

=C2=A0=C2=A0 To support SRv6 based L3VPN overlay, a SID is advertised with = BGP
=C2=A0=C2=A0 MPLS L3VPN route update[RFC4364].=C2=A0 SID is encoded in a SR= v6-VPN SID
=C2=A0=C2=A0 TLV, which is optional transitive BGP Prefix SID
=C2=A0=C2=A0 attribute[I-D.ietf-idr-bgp-prefix-sid].=C2=A0 This attrib= ute serves two
=C2=A0=C2=A0 purposes; first it indicates that the BGP egress device is rea= chable
=C2=A0=C2=A0 via an SRv6 underlay

**** Whether the egress PE is reachable via an SRv6 underlay has nothing to=
**** do with the presence or absence of the SRv6-VPN SID TLV.=C2=A0 The pre= sence
**** of that TLV really only means that the egress PE can handle the SRv6 **** encapsulation for L3VPN.

=C2=A0=C2=A0 and the BGP ingress device receiving this route
=C2=A0=C2=A0 MAY choose to encapsulate or insert an SRv6 SRH, second it ind= icates
=C2=A0=C2=A0 the value of the SID to include in the SRH encapsulation.=C2= =A0 For L3VPN,
=C2=A0=C2=A0 only a single SRv6-VPN SID MAY be necessary.

**** I don't understand the phrase "only a single SRv6-VPN SID MAY= be
**** necessary".

=C2=A0=C2=A0 A BGP speaker supporting an SRv6 underlay MAY distribute SID p= er route
=C2=A0=C2=A0 via the BGP SRv6-VPN Attribute.

**** I think you mean "If a PE supports an SRv6 underlay, it may attac= h the
**** BGP SRv6-VPN attribute to the VPN-IP routes that it originates".<= br>
=C2=A0=C2=A0 If the BGP speaker supports MPLS based
=C2=A0=C2=A0 L3VPN simultaneously, it MAY also populate the Label values in= L3VPN
=C2=A0=C2=A0 route types and allow the BGP ingress device to decide which =C2=A0=C2=A0 encapsulation to use.=C2=A0 If the BGP speaker does not suppor= t MPLS based
=C2=A0=C2=A0 L3VPN services the MPLS Labels in L3VPN route types MUST be se= t to
=C2=A0=C2=A0 IMPLICIT-NULL.

**** Please provide a reference that specifies how you set the Label field<= br> **** of a SAFI-4 or SAFI-128 route to "implicit null".=C2=A0 I do= n't recall any
**** such thing existing in RFC 3107, 4364, or 8277.

**** If you mean "set to zero", I think that will generally be in= terpreted
**** in a SAFI-4 or SAFI-128 route as "push on label 0 (explicit null)= ".

**** If you mean "set to three" (the value defined in RFC 3032 to= represent
**** "implicit null"), I don't think the SAFI-4/SAFI-128 impl= ementations
**** generally interpret the value three in that manner.

**** I'm not really sure what you're trying to do here. There are a= t least
**** four cases to consider:

**** 1. For the case where the backbone doesn't have MPLS, there is no = harm
**** in saying "set the label to zero".

**** 2. For the case where the backbone supports both MPLS and SRv6, and **** some PEs support L3VPN both ways, while others support only MPLS-based=
**** L3VPN, then a real label needs to be put in.

**** 3. For the case where the backbone supports both MPLS and SRv6, but a<= br> **** particular egress PE only supports SRv6, there needs to be some way to=
**** instruct the ingress PEs to use SRv6 and not MPLS. Perhaps the
**** presence of the prefix-SID attribute with VPN-SID TLV is sufficient.
**** 4. For the case where the backbone supports both MPLS and SRv6, the **** egress PE supports both for transit, but the egress PE only supports **** SRv6 for L3VPN, the label in the SAFI-1/SAFI-128 routes should be a **** value that will cause the egress PE to discard the packet.=C2=A0 If th= ere
**** happens to be an ingress PE that only supports the MPLS style of L3VPN= ,
**** this will prevent the egress PE from misrouting MPLS packets that
**** arrive from that ingress PE.=C2=A0 (This would be an odd, probably
**** transitional, deployment.=C2=A0 But the draft isn't very explicit = about just
**** what combinations of MPLS and SRv6 it is supposed to support.)

**** In any event, the draft would be better off specifying the actual labe= l value
**** to be included rather than saying "implicit null". This occu= rs several
**** times in the draft.

Section 3.1

...

=C2=A0=C2=A0 SRv6-VPN SID is encoded as part of the SRv6-VPN SID TLV define= d in
=C2=A0=C2=A0 Section 2.=C2=A0 The function of the SRv6 SID is entirely up t= o the
=C2=A0=C2=A0 originator of the advertisement.=C2=A0 In practice, the functi= on may
=C2=A0=C2=A0 likely be End.DX4 or End.DT4.

**** Obviously, the behavior is not up to the originator, it MUST provide **** the functionality necessary to provide the behavior that would have be= en
**** provided by the MPLS label(s).=C2=A0 Statements like this occur severa= l
**** times in the draft and should all be fixed.

Section 4

...

=C2=A0=C2=A0 Ethernet VPN(EVPN), as defined in [RFC7432] provides an extend= able
=C2=A0=C2=A0 method of building an EVPN overlay.=C2=A0 It primarily focuses= on MPLS
=C2=A0=C2=A0 based EVPNs but calls out the extensibility to IP based EVPN =C2=A0=C2=A0 overlays.=C2=A0 It defines 4 route-types which carry prefixes = and MPLS
=C2=A0=C2=A0 Label attributes, the Labels each have specific use for MPLS =C2=A0=C2=A0 encapsulation of EVPN traffic.=C2=A0 The fifth route-type carr= ying MPLS
=C2=A0=C2=A0 label information (and thus encapsulation information) for EVP= N is
=C2=A0=C2=A0 defined in[I-D.ietf-bess-evpn-prefix-advertisement].

=C2=A0=C2=A0 The Route Types discussed below are:

**** After carefully counting up to five route types, the document then pro= ceeds to identify eight route types ;-)

**** And there are lots more on the way!

Section 4.1.1

...

=C2=A0=C2=A0 SRv6-VPN TLV MAY be advertised along with the route advertisem= ent and
=C2=A0=C2=A0 the behavior of the SRv6-VPN SID is entirely up to the origina= tor of
=C2=A0=C2=A0 the advertisement.=C2=A0 In practice, the behavior would likel= y be
=C2=A0=C2=A0 Arg.FE2.

**** This seems to require that a unique IPv6 address be assigned to each **** ES.=C2=A0 Is that the intention?=C2=A0 If so, then probably those addr= esses
**** should not be routable.

...

Section 4.3

...

=C2=A0=C2=A0 An Inclusive Multicast Ethernet Tag route type specific EVPN N= LRI
=C2=A0=C2=A0 consists of the following [RFC7432] where:

=C2=A0=C2=A0 o=C2=A0 BGP next-hop: IPv6 address of egress PE

**** I don't think there is any reason for this document to specify the=
**** contents of the NH field of the IMET route.=C2=A0 The above doesn'= t make
**** much sense anyway, as the term "egress PE" doesn't reall= y make sense in
**** the context of the IMET route, and the next hop can change as the rout= e
**** is propagated.

=C2=A0=C2=A0 o=C2=A0 SRv6-VPN TLV MAY encode END.DX2/END.DT2M function.

=C2=A0=C2=A0 o=C2=A0 BGP Attribute: PMSI Tunnel Attribute[RFC6514] MAY cont= ain MPLS
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 implicit-null label and Tunnel Type would be= similar to defined in
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 EVPN Type-6 i.e. Ingress replication route.<= br>
**** Is the intention to prohibit the use of either P2MP tunnels or assiste= d
**** replication in an SRv6 overlay?=C2=A0 That seems to be a consequence o= f the
**** above.=C2=A0 If that's the intention, please say so explicitly and= do not
**** leave it as an inference.=C2=A0 If that's not the intention, then = do not say
**** what the tunnel type should be.

=C2=A0=C2=A0 The format of PMSI Tunnel Attribute attribute is encoded as fo= llows
=C2=A0=C2=A0 for an SRv6 Core:

=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 +---------------------------------------+<= br> =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 Flag (1 octet)=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=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 +---------------------------------------+<= br> =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 Tunnel Type (1 octet)=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 |<= br> =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 +---------------------------------------+<= br> =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 MPLS label (3 octet)=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=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0 +---------------------------------------+<= br> =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 Tunnel Identifier (variable)=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 +---------------------------------------+<= br>
=C2=A0=C2=A0 o=C2=A0 Flag: zero value defined per [RFC7432]

**** The EVPN specs (of which RFC 7432 is not the only one) use five or six=
**** of the PMSI tunnel attribute flags.=C2=A0 This spec should not say to = set
**** the flags to zero, unless it is meant to prohibit the use of any
**** function requiring the flags.

=C2=A0=C2=A0 o=C2=A0 Tunnel Type: defined per [RFC6514]

=C2=A0=C2=A0 o=C2=A0 MPLS label: Implicit-Null

**** MPLS label should be zero; in the PMSI Tunnel attribute, it is clear **** that zero means "no label is specified".

=C2=A0=C2=A0 o=C2=A0 Tunnel Identifier: IP address of egress PE

**** This makes no sense when P2MP tunnels are used.

**** For IR, the tunnel identifier is the identifier of the PE originating<= br> **** the route, per RFC 7432 section 11.2.

**** Note that this will require that a unique IPv6 address be assigned to<= br> **** each Broadcast Domain; that should be stated explicitly.

**** In a draft entitled " BGP Signaling of IPv6-Segment-Routing-based= VPN
**** Networks", it would be nice if the following little details were<= br> **** mentioned explicitly:

**** - In L3VPN, an IPv6 address must be assigned to each VRF (or to each ****=C2=A0=C2=A0 VRF interface)

**** - In EVPN, an IPv6 address must be assigned to each ES.

**** - In EVPN, an IPv6 address must be assigned to each BD.

**** It would also be nice if multicast were covered in both MVPN and EVPN.=

...

6.=C2=A0 Implementation Status

=C2=A0=C2=A0 The SRv6-VPN is available for SRv6 on various Cisco hardware a= nd
=C2=A0=C2=A0 other software platforms.

**** Does it provide the full set of L3VPN/EVPN features? If not,
**** what subset of features are supported?=C2=A0 Does it support
**** transitional scenarios without relying on non-standard
**** behaviors?

...

7.=C2=A0 Error Handling of BGP SRv6 SID Updates

=C2=A0=C2=A0 When a BGP Speaker receives a BGP Update message containing a<= br> =C2=A0=C2=A0 malformed SRv6-VPN SID TLV, it MUST ignore the received BGP =C2=A0=C2=A0 attributes and not pass it to other BGP peers.=C2=A0 This is e= quivalent to
=C2=A0=C2=A0 the -attribute discard- action specified in [RFC7606].=C2=A0 W= hen
=C2=A0=C2=A0 discarding an attribute, a BGP speaker MAY log an error for fu= rther
=C2=A0=C2=A0 analysis.

**** If the attribute is discarded, and there is no label (or the backbone)=
**** doesn't support MPLS, what will happen to the VPN traffic? Can it = be
**** misdelivered outside the VPN?=C2=A0 That wouldn't be very good.






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charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit On 12/28/2017 12:14 PM, Robert Raszuk wrote: > Hi Eric, > > A lot of your comments are an indication that you treat SID to be IPv6 > address fully responsible for demux to proper VRF or CE. This was > never the intention. > > Imagine egress PE having /64 loopback. Then you have remaining 64 bits > to put there a 20 bit VPN label (as we know it :) and even much more > then that. You can attach new arbitrary new functions to this single > "VPN SID". > > And further notice that this has no bearing on SID being routable or > not. Only the first /64 bits of the dst address need to be routable in > order for forwarding packets to happen ... So by no means there should > be a case to have per vrf IPv6 address or per CE IPv6 address and make > it fully /128 routable. I'm not sure what you mean by "fully /128 routable".  If there is a route for a /64 prefix, then a /128 that begins with that prefix is routable. I'm not sure what you mean by saying it is "not the intention for the IPv6 address to be fully responsible for demux to proper VRF or CE".  If the IPv6 adress contains the "VPN label" in its low-order part, then the IPv6 address is used for the demux.  The VPN label is part of the IPv6 address, no? I'm not sure which comments you consider to be invalid. --------------D52FA870FCE27031BBD77FF7 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit On 12/28/2017 12:14 PM, Robert Raszuk wrote:
Hi Eric,

A lot of your comments are an indication that you treat SID to be IPv6 address fully responsible for demux to proper VRF or CE. This was never the intention. 

Imagine egress PE having /64 loopback. Then you have remaining 64 bits to put there a 20 bit VPN label (as we know it :) and even much more then that. You can attach new arbitrary new functions to this single "VPN SID". 

And further notice that this has no bearing on SID being routable or not. Only the first /64 bits of the dst address need to be routable in order for forwarding packets to happen ... So by no means there should be a case to have per vrf IPv6 address or per CE IPv6 address and make it fully /128 routable.

I'm not sure what you mean by "fully /128 routable".  If there is a route for a /64 prefix, then a /128 that begins with that prefix is routable.

I'm not sure what you mean by saying it is "not the intention for the IPv6 address to be fully responsible for demux to proper VRF or CE".  If the IPv6 adress contains the "VPN label" in its low-order part, then the IPv6 address is used for the demux.  The VPN label is part of the IPv6 address, no?

I'm not sure which comments you consider to be invalid.



--------------D52FA870FCE27031BBD77FF7-- From nobody Thu Dec 28 10:55:29 2017 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1681C126D73; Thu, 28 Dec 2017 10:55:23 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.099 X-Spam-Level: X-Spam-Status: No, score=-2.099 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-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 NRMKrGPwIPWh; Thu, 28 Dec 2017 10:55:20 -0800 (PST) Received: from mail-wm0-x22b.google.com (mail-wm0-x22b.google.com [IPv6:2a00:1450:400c:c09::22b]) (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 F3A32126C89; Thu, 28 Dec 2017 10:55:19 -0800 (PST) Received: by mail-wm0-x22b.google.com with SMTP id t8so45245907wmc.3; Thu, 28 Dec 2017 10:55:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=fznLT/3gOsAVzAwJ1ly2JWjO8AVXUzskIRM9+k6JSPc=; b=nlTQ6x5s3gRnKplZ4W/4mE35NrV6F5rO9akwiaV0uhjkl7EzD4PspEU8yekC/Qh4+4 1BWGTE0IjnPWMyOacgz3Y2bCOYUeuaNDDKcfidkWBTlYkkXffc3vcI1/c91CU3IFm8IU HzG3CnW+XNHLswFnqsiNqhb/dT1iJJ1b6SBkaSpY9ilyEJXsD9Rv928vEf6O/T4euJaz YC+zBwHo/CgXV29clSrYFcrnmcdKdnqK795AYg/GQ1YdPvvchHn2YEVurW+t3eweqCqv 4C8CQOP00JxtqM3whL9vXhp5lzoUbjrgSpbrCUFazjr44oW+NQ6e9030kfBUu8azZV6S WcAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=fznLT/3gOsAVzAwJ1ly2JWjO8AVXUzskIRM9+k6JSPc=; b=VGGQcwSyHd6WNLgn0cWdxYxpA4NkyXq0qNPCl24eIYYna3lFdyHbnFWtxWoZ+arbSR i23TnPxxQY4qbYHSwP1sYMW/KeyNXqvdbawuHCk5SQ33LOiwl+8/RCqsvT403R9ZbQYn MCxvyMenKGfC02p3lsCfKyyurTOvmSyVh8ep8r/R+GyxrbFe5Kh5EKJ0Q6j7mlSeDpZc Bfb/eFyYUCb3UNJhA5VUl6yK3bQg8htWjyWmWFOyFPZmnKlzMcI4Ed5uNb+xoq8uU7ag j2SK5jpI4VBQL3/a4Juc0JVbhBOUTCnsS0oBgvuv10gDImCYTxnUrsbuU8ivaAC/Z9Vy N6jw== X-Gm-Message-State: AKGB3mJ2tzfn08rM6LrkPP31f0o/vQi8//VrsUHXUIxW04U8Km4Ir1Pt fl+HQ9MX8MQXEokjPrjjT6GwGcEU+ioMDUV2rm0= X-Google-Smtp-Source: ACJfBovkLJ6v1HC3WIs3Gsc/QclVlcFFPqpdhbLQ8eeLVWgMTDK5XFy8Mx01QTMVw/j/vlNtoV9JGOWtSjrND0UGHDk= X-Received: by 10.28.136.15 with SMTP id k15mr25590227wmd.147.1514487318062; Thu, 28 Dec 2017 10:55:18 -0800 (PST) MIME-Version: 1.0 Sender: rraszuk@gmail.com Received: by 10.28.54.217 with HTTP; Thu, 28 Dec 2017 10:55:17 -0800 (PST) In-Reply-To: References: From: Robert Raszuk Date: Thu, 28 Dec 2017 19:55:17 +0100 X-Google-Sender-Auth: pbCSth6XFYbkpuyr5sKlljDcjmM Message-ID: To: Eric C Rosen Cc: "bess@ietf.org" , draft-dawra-idr-srv6-vpn.authors@ietf.org, spring@ietf.org Content-Type: multipart/alternative; boundary="001a1144242a9c373305616b0ed5" Archived-At: Subject: Re: [bess] Comments on draft-dawra-idr-srv6-vpn-03 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Dec 2017 18:55:23 -0000 --001a1144242a9c373305616b0ed5 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Ok let's start all over :) **** This suggests that an IPv6 address has to be assigned to each VRF (for > **** per-VRF "labeling"), or even to each CE (for per-CE labeling). > =E2=80=8BNo one suggests that. VPN SID is not IPv6 address .. it is part of= v6 SID which when appended to IPv6 prefix forms a complete SRv6 SID. Semantics does matter here. =E2=80=8B **** If those addresses are routable, doesn't this create a security issue > **** as discussed in RFC 4023 Section 8.2? > =E2=80=8BPE's loopback address say /64 being routable causes any security r= isk ? =E2=80=8B **** The phrase "only has local significance" suggests that these SIDs are > **** not routable. But later on there is a suggestion that they are > **** routable, or at least that they might be. > =E2=80=8BAgain SIDs are not routable and they have only local significance = - true. =E2=80=8BThey are prepended to say loopback address to form IPv6 SID. **** So there are a number of options: > **** - not routable > **** - globally routable > **** - routable only within egress AS > =E2=80=8BThis is referring to routability of SID ... not right. SID does no= t need to be routable. What prefix they are part of may be routable. =E2=80=8B=E2= =80=8B > and the BGP ingress device receiving this route > MAY choose to encapsulate or insert an SRv6 SRH, second it indicates > the value of the SID to include in the SRH encapsulation. For L3VPN, > only a single SRv6-VPN SID MAY be necessary. > > **** I don't understand the phrase "only a single SRv6-VPN SID MAY be > **** necessary". > =E2=80=8BAnalogy to basic L3VPN when you have VPN label and underlay LDP la= bel. =E2=80=8B If the BGP speaker supports MPLS based > L3VPN simultaneously, it MAY also populate the Label values in L3VPN > route types and allow the BGP ingress device to decide which > encapsulation to use. If the BGP speaker does not support MPLS based > L3VPN services the MPLS Labels in L3VPN route types MUST be set to > IMPLICIT-NULL. > > **** Please provide a reference that specifies how you set the Label fiel= d > **** of a SAFI-4 or SAFI-128 route to "implicit null". I don't recall an= y > **** such thing existing in RFC 3107, 4364, or 8277. > =E2=80=8B4364 does not restrict what value of VPN label is used - does it ?= I think this draft now right here defines =E2=80=8Bhow to read implicit-null being = placed there :) It's not my idea though - so I will let real inventors to comment on it more. > **** If you mean "set to three" (the value defined in RFC 3032 to represe= nt > **** "implicit null"), I don't think the SAFI-4/SAFI-128 implementations > **** generally interpret the value three in that manner. > =E2=80=8BAs mentioned I think it just is being defined here and now. =E2=80= =8B > **** I'm not really sure what you're trying to do here. There are at leas= t > **** four cases to consider: > > **** 1. For the case where the backbone doesn't have MPLS, there is no ha= rm > **** in saying "set the label to zero". > =E2=80=8BReally ? =E2=80=8BWhat does the backbone having or not having MPLS= has to do with this ? Underlay forwarding does not matter and this is what I read as "backbone". **** 2. For the case where the backbone supports both MPLS and SRv6, and > **** some PEs support L3VPN both ways, while others support only MPLS-bas= ed > **** L3VPN, then a real label needs to be put in. > =E2=80=8BOK.=E2=80=8B > **** 3. For the case where the backbone supports both MPLS and SRv6, but = a > **** particular egress PE only supports SRv6, there needs to be some way = to > **** instruct the ingress PEs to use SRv6 and not MPLS. Perhaps the > **** presence of the prefix-SID attribute with VPN-SID TLV is sufficient. > =E2=80=8BPerhaps not ... and this is exactly =E2=80=8Bthe case trying to be= addressed. **** 4. For the case where the backbone supports both MPLS and SRv6, the > **** egress PE supports both for transit, but the egress PE only supports > **** SRv6 for L3VPN, the label in the SAFI-1/SAFI-128 routes should be a > =E2=80=8BLabel in SAFI 1 ? =E2=80=8B > **** value that will cause the egress PE to discard the packet. If there > **** happens to be an ingress PE that only supports the MPLS style of > L3VPN, > **** this will prevent the egress PE from misrouting MPLS packets that > **** arrive from that ingress PE. (This would be an odd, probably > **** transitional, deployment. But the draft isn't very explicit about > just > **** what combinations of MPLS and SRv6 it is supposed to support.) > > **** In any event, the draft would be better off specifying the actual > label value > **** to be included rather than saying "implicit null". This occurs sever= al > **** times in the draft. > =E2=80=8B.. or to define a new special or reserved label =E2=80=8Bfor that = embedded signalling. Kind regards, R. --001a1144242a9c373305616b0ed5 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Ok let's start all over :)=C2=A0

**** This suggests that an IPv6 address has to be assigned= to each VRF (for
**** per-VRF "labeling"), or even to each CE (for per-CE labeling= ).

=E2=80=8BNo one= suggests that. VPN SID is not IPv6 address .. it is part of v6 SID which w= hen appended to IPv6 prefix forms a complete SRv6 SID. Semantics does matte= r here. =E2=80=8B

**** If tho= se addresses are routable, doesn't this create a security issue
**** as discussed in RFC 4023 Section 8.2?

<= div>
=E2=80=8BPE's loopback address say /64 being rou= table causes any security risk ? =E2=80=8B

**** The phrase "only has local significance" sugge= sts that these SIDs are
**** not routable. But later on there is a suggestion that they are
**** routable, or at least that they might be.

=E2=80=8BAgain SIDs are not routable and they ha= ve only local significance - true. =E2=80=8BThey are prepended to say loopb= ack address to form IPv6 SID.=C2=A0

**** So there are a number of options:
**** - not routable
**** - globally routable
**** - routable only within egress AS

<= div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif= ;font-size:small">=E2=80=8BThis is referring to routability of SID ... not = right. SID does not need to be routable. What prefix they are part of may b= e routable. =E2=80=8B=E2=80=8B
=C2=A0
=C2=A0 =C2=A0and the BGP ingress device receiving this r= oute
=C2=A0=C2=A0 MAY choose to encapsulate or insert an SRv6 SRH, second it ind= icates
=C2=A0=C2=A0 the value of the SID to include in the SRH encapsulation.=C2= =A0 For L3VPN,
=C2=A0=C2=A0 only a single SRv6-VPN SID MAY be necessary.

**** I don't understand the phrase "only a single SRv6-VPN SID MAY= be
**** necessary".

=E2=80=8BAnalogy to basic L3VPN when you have VPN label and underlay LDP = label. =E2=80=8B


=C2=A0 =C2=A0If the BGP speaker supports MPLS based
=C2=A0=C2=A0 L3VPN simultaneously, it MAY also populate the Label values in= L3VPN
=C2=A0=C2=A0 route types and allow the BGP ingress device to decide which =C2=A0=C2=A0 encapsulation to use.=C2=A0 If the BGP speaker does not suppor= t MPLS based
=C2=A0=C2=A0 L3VPN services the MPLS Labels in L3VPN route types MUST be se= t to
=C2=A0=C2=A0 IMPLICIT-NULL.

**** Please provide a reference that specifies how you set the Label field<= br> **** of a SAFI-4 or SAFI-128 route to "implicit null".=C2=A0 I do= n't recall any
**** such thing existing in RFC 3107, 4364, or 8277.
<= br>

=E2=80=8B4364 does not rest= rict what value of VPN label is used - does it ? I think this draft now rig= ht here defines =E2=80=8Bhow to read implicit-null being placed there :) It= 's not my idea though - so I will let real inventors to comment on it m= ore.=C2=A0
=C2=A0
*= *** If you mean "set to three" (the value defined in RFC 3032 to = represent
**** "implicit null"), I don't think the SAFI-4/SAFI-128 impl= ementations
**** generally interpret the value three in that manner.

=E2=80=8BAs mentioned I think it just = is being defined here and now. =E2=80=8B


**** I'm not really sure what you're trying to do here. There are a= t least
**** four cases to consider:

**** 1. For the case where the backbone doesn't have MPLS, there is no = harm
**** in saying "set the label to zero".

=
=E2=80=8BReally ? =E2=80=8BWhat does the back= bone having or not having MPLS has to do with this ? Underlay forwarding do= es not matter and this is what I read as "backbone".=C2=A0
<= br>

**** 2. For the case= where the backbone supports both MPLS and SRv6, and
**** some PEs support L3VPN both ways, while others support only MPLS-based=
**** L3VPN, then a real label needs to be put in.

=
=E2=80=8BOK.=E2=80=8B
=C2=A0<= br>
**** 3. For the case where the back= bone supports both MPLS and SRv6, but a
**** particular egress PE only supports SRv6, there needs to be some way to=
**** instruct the ingress PEs to use SRv6 and not MPLS. Perhaps the
**** presence of the prefix-SID attribute with VPN-SID TLV is sufficient.

=E2=80=8BPerhaps not = ... and this is exactly =E2=80=8Bthe case trying to be addressed.=C2=A0

**** 4. For the case = where the backbone supports both MPLS and SRv6, the
**** egress PE supports both for transit, but the egress PE only supports **** SRv6 for L3VPN, the label in the SAFI-1/SAFI-128 routes should be a

=E2=80=8BLabel in SAFI= 1 ? =E2=80=8B


=C2=A0
**** value that will cause the egress PE to discard the packet.=C2=A0 If th= ere
**** happens to be an ingress PE that only supports the MPLS style of L3VPN= ,
**** this will prevent the egress PE from misrouting MPLS packets that
**** arrive from that ingress PE.=C2=A0 (This would be an odd, probably
**** transitional, deployment.=C2=A0 But the draft isn't very explicit = about just
**** what combinations of MPLS and SRv6 it is supposed to support.)

**** In any event, the draft would be better off specifying the actual labe= l value
**** to be included rather than saying "implicit null". This occu= rs several
**** times in the draft.

=E2=80=8B.. or to define a new special or reserved label =E2=80=8Bfor = that embedded signalling.=C2=A0

Kind regards,
R.
--001a1144242a9c373305616b0ed5-- From nobody Fri Dec 29 15:00:06 2017 Return-Path: X-Original-To: bess@ietf.org Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 1A18D1200F1; Fri, 29 Dec 2017 15:00:05 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Spencer Dawkins To: "The IESG" Cc: draft-ietf-bess-evpn-overlay@ietf.org, Thomas Morin , aretana.ietf@gmail.com, bess-chairs@ietf.org, thomas.morin@orange.com, bess@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.68.1 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <151458840509.3969.4686705852309981578.idtracker@ietfa.amsl.com> Date: Fri, 29 Dec 2017 15:00:05 -0800 Archived-At: Subject: [bess] Spencer Dawkins' No Objection on draft-ietf-bess-evpn-overlay-10: (with COMMENT) X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.22 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Dec 2017 23:00:05 -0000 Spencer Dawkins has entered the following ballot position for draft-ietf-bess-evpn-overlay-10: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-bess-evpn-overlay/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- Both the Abstract and Introduction contain text like this: This specification is also applicable to GENEVE encapsulation; however, some incremental work is required which will be covered in a separate document. and the Introduction references draft-boutros-bess-evpn-geneve-00.txt, which looks like an individual -00 draft. I wonder if it would be better to drop the promise from this document, and make the relationship clear in whatever version of draft-boutros-bess-evpn-geneve is published. I'm fine with the working group publishing this draft with the promise included, but wanted to ask while we're reviewing it, rather than later.