Re: [Idr] BGP Auto-Discovery Protocol State Requirements

Jeffrey Haas <jhaas@pfrc.org> Fri, 19 March 2021 12:54 UTC

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Date: Fri, 19 Mar 2021 09:16:22 -0400
From: Jeffrey Haas <jhaas@pfrc.org>
To: "Acee Lindem (acee)" <acee@cisco.com>
Cc: "idr@ietf.org" <idr@ietf.org>
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Subject: Re: [Idr] BGP Auto-Discovery Protocol State Requirements
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Acee,

On Fri, Mar 19, 2021 at 12:14:34PM +0000, Acee Lindem (acee) wrote:
> The avoidance of the these complexities is one advantage of an independent discovery protocol. Another advantage is that it could serve use cases beyond BGP. 

I guess that depends on what things we're talking about.

For "how do you get a TCP speaker to come up for an application with
partially known parameters", longer term it might be nice if the tcpm
Working Group took this up.

They've partially addressed this using TCP-ENO (RFC 8547).  At some point
BGP would benefit from having an informational document describe
interactions with it.  The GTSM option doesn't fit well there.

BFD state for BGP is an artifact of interoperability headaches for the BGP
FSM and the BFD FSM as you well know. :-)

-- Jeff