mailing list archives
Re: bgp update destroying transit on redback routers ?
From: Igor Ybema <igor () ergens org>
Date: Thu, 1 Dec 2011 18:08:54 +0100
And what to do with 4-byte AS-numbers then? That would explain the 8 bytes.
Two new attributes, AS4_PATH and AS4_AGGREGATOR, are introduced that
can be used to propagate four-octet based AS path information cross
BGP speakers that do not support the four-octet AS numbers.
However this router is AS4 capable, but probably fails to understand a
4-byte AS in the normal AGGREGATOR attribute. If I understand
correctly a AS4 capable router should understand when announcing that
to it's peer.
I'm I correct? Should I file this as a bug? (redback/ericsson is
already looking also)