Create Date: Jul 23 2012 5:49AM
I am running BGP in XOS 15.1.x receiving full routes from two transit providers.
Over the past few months I have experienced several bgp session resets due to optional attributes errors.
Last week, this was caused by an Italian ISP announcing a route with invalid AGGREGATOR attribute:
BGP routing table entry for 184.108.40.206/24
Aggregator: 0 [0.0.0.0]
AGGREGATOR: AS: 0 origin: 0.0.0.0 - (hex: C0070800 00000000 000000)
This, per BGP RFC should trigger a session reset, but it seems Extreme is the only one doing it.
Has anyone seen this an oppened a ticket about this issue?
It seems to happen from time to time, that someone announces this type of route, and results in total unavailability as all transit sessions resets and returns in endless flapping, till the route is removed or fixed. Which is not acceptable in a production environment.
Kenneth (from Kenneth_Oestrup)