Hey Drew, > I’ve seen this a bit in the past with 1-2 routes, but today it’s been > happening basically all morning with several different routes. > ROUTING-FIB-3-UPD_MSG_TOO_BIG > I’ve chased it down from a vendor level and they implied that it is just > informational, my question is why do these sort of updates seem to be sent to > the Internet’s routing table in bursts?
This is really cisco-nsp issue, not nanog, nanog is about unfalsiable politics and explaining how simple things are which you've never done at any scale or availability needs. You probably have 'bgp attribute-download' configured, which means things like communities, as-paths etc are given for FIB consumption, usually because you want netflow to export AS data, instead of enriching it at the receiver. So likely you have some RIB entry with a very long path or many communities, and this made the IPC message too large, and those attributes were not sent to the FIB. The prefix and forwarding information is there, juste the attribute download failed. -- ++ytti
