bgp update destroying transit on redback routers ?
Igor Ybema
igor at ergens.org
Thu Dec 1 17:03:17 UTC 2011
>
> AGGREGATOR is an optional transitive attribute of length 6.
>
> --
> In theory, there is no difference between theory and practice.
> But, in practice, there is.
Typical, because:
AGGREGATOR is an optional transitive attribute of length 6.
The attribute contains the last AS number that formed the
aggregate route (encoded as 2 octets), followed by the IP
address of the BGP speaker that formed the aggregate route
(encoded as 4 octets). Usage of this attribute is described
in 5.1.7
And what to do with 4-byte AS-numbers then? That would explain the 8 bytes.
regards, Igor
More information about the NANOG
mailing list