Thanks Gert, Joseph and Jorge.
We need to pass the full routing table to a customer who is load
balancing between us and another upstream provider.
As far as data throughput goes, yes, the 2911 looks like a good fit. But
I was concerned about whether the CPU would be able to handle the
frequent BGP updates associated with a full routing table. The
routerperformance.pdf unfortunately does not list the process switching
specs on the 2900's.
The 2911 would be a cold spare, to be used only when the 7204VXR dies.
Thanks,
Adam
On 12/9/2010 2:30 AM, Gert Doering wrote:
Hi,
On Wed, Dec 08, 2010 at 06:30:08PM -0500, Adam Greene wrote:
I need a backup router for a 7206VXR/NPE-400/512MB RAM than can handle
full routes from a single eBGP peer. Router provides transit to an
end-user. Remaining configs on router are minimal, max throughput is
about 30-40Mbps.
What good is "full routes from a single peer"? Just point a default
route there...
Would a 2911/512MB RAM be sufficient? Or is the CPU too puny? Maybe we
need a 3825/521MB RAM? Or I guess we could just get a backup
7206VXR/NPE-400/512MB RAM.
As per the routerperformance.pdf, the 2911 is (regarding packet forwarding)
nearly as fast as the NPE-400, and the 2921 would be somewhat faster - so
if then NPE-400 is sufficient now, the 2921 should do well as backup.
OTOH, why bother with BGP full tables if all you have is a single peer.
gert
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