[nsp] Packets per second?

[Josh Duffek]

I think when they do those tests all the packet sizes are the same, so that
might explain why your numbers look different...not sure though.

joshd.

----- Original Message -----
From: <cisco-nsp@thedogsbollocks.co.uk>
To: <cisco-nsp@puck.nether.net>
Sent: Wednesday, November 13, 2002 7:30 PM
Subject: [nsp] Packets per second?


> Hi all,
>  I was just comparing various cisco 7xxx routers and associated
processors/vips
> so went thro the data sheets noting down architecture and the reported
packets
> per second and backplane info.
>
> I'm just wondering what they benchmarked this on! For example I have a
7206/225
> with 18000pps averaging 40% CPU and spiking each minute (BGP scanner
> etc). According to the docs the NPE225 can do 225000pps... hmm, I'm
doubting
> this!
>
> Am curious to know if anyone has played with these numbers at all to try
and
> benchmark one router to another and if there was anything interesting
found..
>
> eg cisco's figures are too high by a factor of X
>
> eg the NPE225 which rates the same PPS as an RSP2 is actually 10 times
more
> efficient because of its _______.
>
> you see what i'm getting at here? (no references to distributed
architecture
> white paper please!)
>
> i have a feel for how these routers perform but i'm trying to quantify
it - and
> not doing so well!
>
> I'm specifically interested in the performance of various VIPs in a 7500
chassis
> which again altho I know theyre N times better than the 7200 from
experience,
> precisely what is the multiplying factor and whats the reason? A couple of
> VIP2-50s rated at 90000PPS can easily keep up with an NPE300 rated at
300000PPS,
> weird!
>
> Cisco's vagueness, departure from measured figures and inconsistency in
data
> sheet reporting has me beated! :)
>
> TIA
>
> Steve
>
>
>
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