[c-nsp] bgp scalability C7600

[Nick Hilliard]

On 06/02/2015 14:16, james list wrote:
> do anybody have numbers in terms of BGP sessions scalability oin C7600
> SUP-720 ?

scalability is what you'd expect for a platform which was designed in 2002
using a CPU which was current in ~2000.

In 2002, the DFZ was 100k prefixes; it's over 500k prefixes today.  The RP
has 1G memory, which is only barely enough for a couple of dfz feeds on
recent versions of 15.x.

In terms of production guidelines, I wouldn't load one of these devices up
with more than 1 ebgp feed, on the basis of 2xRR iBGP feeds.  Initial
boot-up to BGP ready time for this configuration is ~15 minutes. They're
fine for pushing traffic (so long as it's not ipv6), but they're not up to
handling a DFZ any more.

Nick