7 Mar
2001
7 Mar
'01
6:39 p.m.
Is anyone else have any problems with "maximum-paths" on a GSR and if yes, what release of IOS? Any other issues I should be aware of?
It may not affect you (given you are running 12.0(10)S), but having maximum-paths set to something other than 1 can cause problems on Engine 2 linecards. The result is that the CEF IPC Background process eats all available linecard CPU. Packet forwarding is not directly affected, but it can mean that the CEF tables take a long time to converge after a routing flap. As far as I am aware the bug was introduced around 12.0(13.6)S, and has not been fixed in any releases so far. However, this is starting to stray into cisco-nsp territory. :-) Rob