[Babel-users] Babel in Bird 1.6.0

[Toke Høiland-Jørgensen]

Toke Høiland-Jørgensen <toke at toke.dk> writes:

>> The plan is to explicitly allow such retractions in RFC 6126-bis, but
>> they are clearly not allowed by RFC 6126.
>
> Hmm, the RFC says this (which I seem to have previously missed):
>
>   If the metric field is FFFF hexadecimal, this TLV specifies a
>   retraction.  In that case, the current router-id and the Seqno are
>   not used.  AE MAY then be 0, in which case this Update retracts all
>   of the routes previously advertised on this interface.
>

Okay, actually trying to put this into code: Is the intention here that
a null-router ID update is acceptable only on *wildcard* retractions or
on *all* retractions?

-Toke