[c-nsp] Upgrading 3x DS-3 to 3x OC-3/100Mbs

Rick Ernst ernst at easystreet.com
Fri Sep 2 15:30:23 EDT 2005



On Fri, 2 Sep 2005, Kristian Larsson wrote:

:>On Fri, Sep 02, 2005 at 11:51:32AM -0700, Rick Ernst wrote:
:>>
:>Which NPE do you have and what forwarding
:>technique is currently employed?
:>
:>40% for 40Mbps is quite a lot. My 7206 (with
:>NPE-G1) wont even break a swet at 40Mbps.
:>
:>Do you have one VXR per DS-3?

7206 is doing BGP, uRPF, and minimal ACLs.  The 1%/Mb ratio has been pretty
constant for several years.  Our traffic is getting much closer to
symetrical in/out than it has in the past. One router currently running
at 32Mbs in and 22Mbs out is at 30% CPU.

Each DS-3 has its own 7206, fed into the core with A/B FastEthernet.

:>I agree that it's wise not to stick everything in
:>one box but having one 7206 should be sufficient
:>with the proper NPE.




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