[c-nsp] cat6500/fwsm performance

[David White, Jr. (dwhitejr)]

Hi Jeff,

The 30 us is for 'small' packets.  As packet size increases, latency
also increases.  For a normal mix of packet sizes, you should see
latency  around 50 us.  However, 'normal' is also a bit subjective based
on traffic flows in your network.

Sincerely,

David.

Jeff Bacon wrote:
>
> I am, however, left with one mystery.
>
>
> How can the Cisco docs on a FWSM claim a 30-usec latency when clearly
> it isn't capable of that, at least not in any configuration that I'm
> aware of? Granted that it's all lies, damn lies, and marketing
> material, but putting that number in the main data sheet on the main
> product page for the card is a pretty ballsy lie even for Cisco.
>
>  
>
> *From:* David White, Jr. (dwhitejr) [mailto:dwhitejr at cisco.com]
> *Sent:* Friday, June 03, 2011 12:04 AM
> *To:* Jeff Bacon
> *Cc:* Pete Templin; Peter Rathlev; cisco-nsp at puck.nether.net
> *Subject:* Re: [c-nsp] cat6500/fwsm performance
>
>  
>
> And here is a great doc TAC wrote up on single flow TCP performance
> which should answer all your questions:
>
> https://supportforums.cisco.com/docs/DOC-12668
>
> Sincerely,
>
> David.
>
>
>