Support for dual AS and AS migration

[Lennert Buytenhek]

Somewhat related to this, I wrote this patchset last year:

	http://trubka.network.cz/pipermail/bird-users/2017-March/thread.html#11084

The idea was to let you configure two AS numbers that a remote peer
can connect to us with, so that the remote peer can be reconfigured
to use a different AS number without the local machine needing to
reconfigured at the same time.

(The converse case, where the local machine will reconnect with a
secondary AS number if connecting with the primary AS number fails is
more involved, and in my use case, I control both endpoints anyway,
so this was sufficient.)

If there's interest in this patchset I can dust it off and try
resubmitting it.



On Sun, Feb 18, 2018 at 01:25:37PM +0000, Adam Król wrote:

> Does BIRD have any support for AS migration mechanism as mentioned in RFC7705 https://tools.ietf.org/html/rfc7705? Something like https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-16/irg-xe-16-book/bgp-support-for-dual-as-configuration-for-network-as-migrations.html?
> 
> I know it can be achieved by functions, but maybe there is already simplier way to get this done.
> 
> Best regards,
> Adam Król
>