Re: [Idr] draft-ietf-idr-bgp-extended-messages-12 WG LC (5/24 to 6/7)
Ignas Bagdonas <ibagdona.ietf@gmail.com> Thu, 26 May 2016 14:21 UTC
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From: Ignas Bagdonas <ibagdona.ietf@gmail.com>
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Date: Thu, 26 May 2016 15:21:04 +0100
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Subject: Re: [Idr] draft-ietf-idr-bgp-extended-messages-12 WG LC (5/24 to 6/7)
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I have read the draft and support the publication. Some assorted comments: - s/RFC4221/RFC4271, and remove reference of RFC4221. - Section 4, third paragraph talks about the propagation path. How would such a path be known in advance of the propagation? This seems contrary to a normal multipoint flooding mode of BGP operation. - Error handling in the environment with old style and extended messages capable peers. There could be several scenarios advertising received extended messages to an old style peer: -- Single NLRI itself is longer than 4096 (opaque key-value AFI as an example). It is not possible to send it to an old style peer at all, should be dropped and logged. -- Single path attribute is longer than 4096. Removing such attribute would leave no place where to put partial indication. Would see dropping and logging to stay consistent with the NLRI case being a practical approach. -- The sum of path attributes is above 4096, while each path attribute is shorter than 4096. This seems to be the least deterministic case, likely it will be optional attributes that exceed the length, with local node having no knowledge based on what criteria to remove which attribute from propagation. Also this is not specific to extended messages. Behaviour today seems to be left to implementation detail. Should be logged and possibly dropped, leaving to the implementation detail. Ignas On 24/05/2016 21:42, Susan Hares wrote: > > This begins a 2 week WG LC on draft-ietf-idr-bgp-extended-messages > (5/24 to 6/7). The draft can be found at: > > https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-extended-messages/ > > In your comments please provide the following information: > > 1)Support/”no-support” of this draft being ready for publication, > > 2)You know of an implementation for this draft, please report the > implementation to the IDR Wiki > > https://trac.tools.ietf.org/wg/idr/trac/wiki/draft-ietf-idr-bgp-extended-implementations > > > 3)Do you have any concerns about extending the BGP messages. > > Sue Hares and John Scudder > > > > _______________________________________________ > Idr mailing list > Idr@ietf.org > https://www.ietf.org/mailman/listinfo/idr
- [Idr] draft-ietf-idr-bgp-extended-messages-12 WG … Susan Hares
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Job Snijders
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Acee Lindem (acee)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Christopher Morrow
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… heasley
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Jeff Tantsura
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Randy Bush
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Van De Velde, Gunter (Nokia - BE)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Randy Bush
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Gunter Van De Velde
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Randy Bush
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Van De Velde, Gunter (Nokia - BE)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… bruno.decraene
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Randy Bush
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Van De Velde, Gunter (Nokia - BE)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Robert Raszuk
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Acee Lindem (acee)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Acee Lindem (acee)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… bruno.decraene
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Robert Raszuk
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Robert Raszuk
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Acee Lindem (acee)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Robert Raszuk
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Keyur Patel (keyupate)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Keyur Patel (keyupate)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Keyur Patel (keyupate)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Robert Raszuk
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Keyur Patel (keyupate)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Robert Raszuk
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Keyur Patel (keyupate)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Keyur Patel (keyupate)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Robert Raszuk
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Keyur Patel (keyupate)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Sriram, Kotikalapudi (Fed)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Sriram, Kotikalapudi (Fed)
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Robert Raszuk
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Ignas Bagdonas
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Russ White
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Zhuangshunwan
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… bruno.decraene
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Robert Raszuk
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Randy Bush
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Robert Raszuk
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Jeffrey Haas
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Susan Hares
- Re: [Idr] draft-ietf-idr-bgp-extended-messages-12… Susan Hares