[c-nsp] GRE on Cat-4948 switch

[James Slepicka]

4948 is essentially a fixed-config 4500 w/ SupV (400MHz processor).  I 
don't have numbers on that, but I did ask Cisco about GRE performance on 
the Sup6-e (1.3GHz proc) and was told that it can do about 160k 64-byte 
packets/second.  That's less than 100Mb, though I'm not sure how packet 
size impacts CPU utilization.

Ian MacKinnon wrote:
> Hi All,
>
> Does anybody have any idea the impact of running multiple GRE tunnels 
> on a 4948 switch?
>
> I can see that it will be processed by software rather than hardware, 
> but just how much of a problem is this likely to be?
>
> I am only talking about a max of 100M of GRE traffic, amongst a couple 
> of Gig of total traffic.
>
> thanks
>
>
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