[c-nsp] pruned routes, memory still low on Cisco 7507

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Sun Oct 14 13:57:20 EDT 2007

neal rauhauser <> wrote on Sunday, October 14, 2007 6:40 PM:

>   I have some 7507s under my care with RSP4s taking full routes from
> Sprint and McLeod. We were getting tight on memory so we stopped
> accepting all /24s except The memory usage reported by
> "sh ip bgp su" dropped from about 57 meg to half of that, but "show
> proc mem" still appears to be dangerously low - only 2 meg free on
> one box. 
>    I'm running 12.0.32S1 and the machines have been behaving well.
> Here is the output from show proc mem with the small ones trimmed.
> Does IOS keep freed memory in the hands of the pool manager progress
> instead of returning it to free?

I guess the memory hasn't been released by the BGP process, right? BGP
process allocates memory in large chunks, and as long as there are still
some paths/nets using the chunk, it isn't returned to IOS. Please
consider resetting the peers (clear ip bgp *).


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