[nsp] Packets per second?

[Andrey Kostin]

There are some statistics about various features run with netflow:
http://www.cisco.com/warp/partner/synchronicd/cc/pd/iosw/prodlit/ntfo_wp.htm
-----------------------------------
Andrey Kostin, Demos-Internet ISP
http://www.demos-internet.ru/


> -----Original Message-----
> From: cisco-nsp-admin@puck.nether.net
> [mailto:cisco-nsp-admin@puck.nether.net]On Behalf Of
> cisco-nsp@thedogsbollocks.co.uk
> Sent: Thursday, November 14, 2002 12:13
> To: cisco-nsp@puck.nether.net
> Subject: Re: [nsp] Packets per second?
>
>
>
> On Wed, 13 Nov 2002, Steve Francis wrote:
>
> > cisco-nsp@thedogsbollocks.co.uk wrote:
> > > 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!
> >
> >
> > Well, the 7200 performance figures are accurate if the router is
> > configured to do nothing else. No routing processes, no ACL's, no
> > subinterface tagging.
> >
> > Otherwise, in the real world, you get CPU load like yours. (But note
> > that CPU does not scale linearly - double packets per second and you
> > don't double CPU)
> >
> > But with the NSE engines, the acl impacts are removed.
> >
> > It mainly depends on what features are supported by what
> > hardware/software switching paths.  Unless you want to use no features
> > (and vlan tagging is a feature), or all the features you want are
> > supported in hardware/distributed CPUs on your platform,
> cisco's numbers
> > will be "somewhat" higher than yours.
>
> I cant find any reference to CPU utilisation by features or even
> simple loading
> on cisco.com .. do you know any useful links or is this all
> knowledge gained in
> the field?
>
> STeve
>
>
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