Re: [Idr] Capability Advertisement in draft-ietf-idr-bgp-extended-messages
Keyur Patel <keyur@arrcus.com> Thu, 01 August 2019 18:36 UTC
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From: Keyur Patel <keyur@arrcus.com>
To: "Jakob Heitz (jheitz)" <jheitz@cisco.com>, Jeffrey Haas <jhaas@pfrc.org>, "Enke Chen (enkechen)" <enkechen@cisco.com>
CC: "idr-chairs@ietf.org" <idr-chairs@ietf.org>, "idr@ietf. org" <idr@ietf.org>, "draft-ietf-idr-bgp-extended-messages@ietf.org" <draft-ietf-idr-bgp-extended-messages@ietf.org>, Susan Hares <shares@ndzh.com>
Thread-Topic: [Idr] Capability Advertisement in draft-ietf-idr-bgp-extended-messages
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Date: Thu, 01 Aug 2019 18:36:44 +0000
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References: <CAMMESsyvuU8_dBOeoOXPBt=-HwoF0eHvYgm5d8CgF-4o_oiP=g@mail.gmail.com> <20190731211602.GA31271@pfrc.org> <119404A5-8384-456B-9677-0445899B008F@cisco.com> <20190801002911.GB31271@pfrc.org> <BYAPR11MB3751B2E90D5CBD559EBE319CC0DE0@BYAPR11MB3751.namprd11.prod.outlook.com>
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Subject: Re: [Idr] Capability Advertisement in draft-ietf-idr-bgp-extended-messages
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I don’t think this level is strictness is needed. A bgp speaker is capable of sending messages only to those speakers with whom it has exchanged capabilities. On 7/31/19, 10:04 PM, "Jakob Heitz (jheitz)" <jheitz@cisco.com> wrote: I'll raise you one. A single speaker in a network that is not capable of receiving extended messages will lead to a mess of (non-edge) cases. How about: A BGP speaker MUST NOT send the extended messages capability in an OPEN message to any BGP speaker if it has received an OPEN message without the extended message capability from any BGP speaker. A BGP speaker MUST delay sending an OPEN message to any BGP speaker by one keepalive interval if that OPEN message will contain the extended message capability and it has not yet received an OPEN message from every configured BGP speaker. The stated OPEN messages are understood to be of current or future BGP sessions, not of old sessions that have been taken down. This will reduce, but not completely eliminate the mess cases. Regards, Jakob. -----Original Message----- From: Idr <idr-bounces@ietf.org> On Behalf Of Jeffrey Haas Sent: Wednesday, July 31, 2019 5:29 PM To: Enke Chen (enkechen) <enkechen@cisco.com> Cc: idr-chairs@ietf.org; idr@ietf. org <idr@ietf.org>; draft-ietf-idr-bgp-extended-messages@ietf.org; Susan Hares <shares@ndzh.com> Subject: Re: [Idr] Capability Advertisement in draft-ietf-idr-bgp-extended-messages Enke, On Wed, Jul 31, 2019 at 09:50:08PM +0000, Enke Chen (enkechen) wrote: > >> Note that RFC 6793 (4-byte ASes) require bi-directional advertisement
- [Idr] Capability Advertisement in draft-ietf-idr-… Alvaro Retana
- Re: [Idr] Capability Advertisement in draft-ietf-… Jeffrey Haas
- Re: [Idr] Capability Advertisement in draft-ietf-… Enke Chen (enkechen)
- Re: [Idr] Capability Advertisement in draft-ietf-… Jeffrey Haas
- Re: [Idr] Capability Advertisement in draft-ietf-… Jakob Heitz (jheitz)
- Re: [Idr] Capability Advertisement in draft-ietf-… Enke Chen (enkechen)
- Re: [Idr] Capability Advertisement in draft-ietf-… Enke Chen (enkechen)
- Re: [Idr] Capability Advertisement in draft-ietf-… Jakob Heitz (jheitz)
- Re: [Idr] Capability Advertisement in draft-ietf-… Randy Bush
- Re: [Idr] Capability Advertisement in draft-ietf-… bruno.decraene
- Re: [Idr] Capability Advertisement in draft-ietf-… Randy Bush
- Re: [Idr] Capability Advertisement in draft-ietf-… Robert Raszuk
- Re: [Idr] Capability Advertisement in draft-ietf-… Keyur Patel
- Re: [Idr] Capability Advertisement in draft-ietf-… Jeffrey Haas
- Re: [Idr] Capability Advertisement in draft-ietf-… Susan Hares
- Re: [Idr] Capability Advertisement in draft-ietf-… Alvaro Retana
- Re: [Idr] Capability Advertisement in draft-ietf-… Robert Raszuk
- Re: [Idr] Capability Advertisement in draft-ietf-… Enke Chen (enkechen)
- Re: [Idr] Capability Advertisement in draft-ietf-… Enke Chen (enkechen)
- Re: [Idr] Capability Advertisement in draft-ietf-… Robert Raszuk