[nsp] T3 to a 3640

Terry Baranski tbaranski at mail.com
Sun Jun 6 22:11:35 EDT 2004


> So if Cisco states the 3640 can handle 50-70 kpps, how much
> of this can you realistically expect to see?  50%? 75%?
>
> Just tell me what to expect for pps, and I'll figure out 
> how much bandwidth I can expect in my own application based 
> upon my average packet size.

It's completely dependent on traffic characteristics (e.g., packet size)
and any potential performance-reducing features (e.g., ACLs, NAT, etc)
that are enabled.  You can achieve the rated pps with 64 byte packets
and nothing but CEF enabled.  But as packet size increases and
processing-intensive features are turned on, achievable throughput tends
to decrease and there's no magic formula that can accurately predict
what performance you'll get in any given scenario.

-Terry



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