Graceful BGP session shutdown

Johannes Moos johannes.moos at
Mon Oct 9 21:13:23 CEST 2017

Hi BIRD team and fellow BIRD users,

are there any plans to implement Graceful BGP session shutdown ( in future releases?

Ingress is pretty easy and only needs to be implemented once by the user: Check for BGP Community 65535:0 and set local pref to 0 on match
Egress is also simple, but more effortful. It also needs a config change in every maintenance window:

- Modify egress filter to add 65535:0
- Reload config and egress filter

BIRD could automate this by offering a command like "birdc disable bgp1 graceful 15"

which would send 65535:0 immediately and then disable the session after a configurable time, in this case 15 minutes.

What do you think?


Johannes Moos
Systems Engineer
DE-CIX Management GmbH | Lindleystr. 12 | 60314 Frankfurt am Main | Germany |
Phone +49 69 1730902 45 | Mobile +49 160 97997723 | Fax +49 69 4056 2716 | johannes.moos at
Geschaeftsfuehrer Harald A. Summa | Registergericht AG Koeln HRB 51135
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