O Plameras <[EMAIL PROTECTED]> uttered the following thing:
>
> BGP works well on Cisco4500s and Cisco7000s.
>
> Cisco4500s and Cisco7000s runs on Motorola and RISC CPUs
> respectively and are 1980s technologies. Yet, they are
> considered the leaders in handling BGP routing.
4500's are very old and very crusty - they don't run today's BGP
requirements at all (200k prefixes, nope). You might be lucky with
a 7500.
Instability is determined by how close it affects you.
Your BGP table is like a tree, with you at the root and each connected
network is a new branch. Depending on where the break occurs (ie how
close it is to you) a flap may have minimal impact. If it occurs only
one or two AS networks away, you'll have bigger problems.
If you're susceptible, then dampening can help.
Modern boxes like Junipers and Cisco 7600s/12000's will handle flapping
with minimal impact on traffic. Older boxes could crumple under repeated
flapping.
BB
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