BGP deployment and peering questions

Christian Nielsen cnielsen at nielsen.net
Wed Feb 14 17:26:05 UTC 2001


On Wed, 14 Feb 2001, Daniel L. Golding wrote:

> A GSR with 256MB will handle many full views. I haven't tested to the
> limits, but 50 would be a comfortable number. IOS based routers store
> additional views relatively efficiently. I'm sure someone with Cisco can
> give a better number, but from observation, if a full view take n memory,
> than each additional full view takes about .1n memory.

256MB is not much anymore. Today, we see ~1.6million paths and ~100,000
routes. with a full iBGP mesh in the core, and current memory leaks from
ciscos IOS (know issues) the GSRs are running out of memory.

too bad we cant replace our GSRs with 7200s as they can hold 512M of ram
:)

Christian





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