[Idr] new thread regarding capabilities handling
Mikael Abrahamsson <swmike@swm.pp.se> Thu, 27 April 2017 05:18 UTC
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Date: Thu, 27 Apr 2017 07:18:24 +0200
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: idr@ietf.org
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Subject: [Idr] new thread regarding capabilities handling
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Hi, disregard the part in my last email about asking why all bgp sessions in a peer group are flapped when one changes the config of that peer group. Let's discuss that here instead. If I add "address-family ipv4 multicast" to my peer-group and it wasn't there before, all router OSes I know will just reset all the sessions. This is baffling. I see two problems: 1. Why can't capabilities be renegotiated without BGP session restaart? 2. Why doesn't it require a command to flap the sessions to adapt to the new configuration? If I want to run-through my changed policy-map, I have to "clear soft in" (or out). Why isn't there a "clear all-sessions-where-capabilities-have-changed" (paraphrasing). Current behaviour is very disruptive. You change a line of config that you might think is a minor change, and BOOM, all your sessions are reset and you have a many-minutes outage. -- Mikael Abrahamsson email: swmike@swm.pp.se
- Re: [Idr] new thread regarding capabilities handl… Enke Chen
- Re: [Idr] new thread regarding capabilities handl… Mikael Abrahamsson
- Re: [Idr] new thread regarding capabilities handl… Enke Chen
- [Idr] new thread regarding capabilities handling Mikael Abrahamsson
- Re: [Idr] new thread regarding capabilities handl… Robert Raszuk
- Re: [Idr] new thread regarding capabilities handl… Enke Chen
- Re: [Idr] new thread regarding capabilities handl… Enke Chen
- Re: [Idr] new thread regarding capabilities handl… Jeffrey Haas
- Re: [Idr] new thread regarding capabilities handl… Mikael Abrahamsson
- Re: [Idr] new thread regarding capabilities handl… Robert Raszuk
- Re: [Idr] new thread regarding capabilities handl… Mikael Abrahamsson
- Re: [Idr] new thread regarding capabilities handl… Jakob Heitz (jheitz)
- Re: [Idr] new thread regarding capabilities handl… Acee Lindem (acee)