[c-nsp] Cisco2921 vs 7206VXR/NPE-400

[Adam Greene]

Thanks to all for the helpful input to my original question.

It would still be helpful to know the MHz of the processor on the 2921, but
it doesn't seem like that is easy information to obtain (we have another one
in production at another site and I haven't been able to find any commands
that display that info).

We have a 2811 here I just upgraded to 768MB RAM which I'm going to put a
full routing table on, and see what kind of processor utilization and
throughput I get. It has a 350MHz processor like the NPE-400. If it seems to
perform up to its ~60M rating and if the processor survives, I will assume a
2921 under similar load will be able to live up to its 245M rating.


-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
Chris Stand
Sent: Tuesday, November 12, 2013 6:25 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Cisco2921 vs 7206VXR/NPE-400

   1. Cisco2921 vs 7206VXR/NPE-400 (Adam Greene)



----------------------------------------------------------------------

Message: 1
Date: Mon, 11 Nov 2013 11:27:46 -0500
From: "Adam Greene" <maillist at webjogger.net>
To: <cisco-nsp at puck.nether.net>
Subject: [c-nsp] Cisco2921 vs 7206VXR/NPE-400
Message-ID: <006001cedefa$f43f6a30$dcbe3e90$@webjogger.net>
Content-Type: text/plain;       charset="us-ascii"

Hi guys.



We're considering replacing our 7206VXR/NPE-400 (512MB RAM) with some newer
hardware.



We take a single full routing table, have (1) OSPF and (4) BGP peers, and
currently push about 70M aggregate.



We're considering a 2921 because it has 1GB RAM and can do 480k PPS / 245M
throughput compared with the NPE-400's 420k PPS / 215M.



What I'm not clear on is CPU speed. The NPE-400 looks like it's a 300MHz
processor. Does someone know how fast the 2921's CPU is?



Thanks,

Adam

we just this year went through similar migrations - we had 2 7206 w/npe G2.
BGP 400K routes replaced them with 3925s - which seemed overkill at the time
- still is.

Internally as we are moving 10M to 1G circuits to new gear we are going with
29xx and 4451s at the core ( we thought about the ASR and like its
performance, the 4451 emulates the ASR chip but the 4451 seems to be more
flexible in terms of features.

We hooked up to 2921 back to back and did some iperf/ftp traffic flows with
NAT and got well over 500Mb through it .
Your mileage of course will vary .. NAT, QOS, IPSEC, ....
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