[c-nsp] Cisco 3550 maximum number of routable interfaces limit?

Adam Greene maillist at webjogger.net
Wed Feb 9 08:43:04 EST 2005


This has been quite useful to me, too. We shied away from purchasing 3550's
a while back because we were looking to put up to 256 SVI's on whatever
layer 3 switch we got. We went with the Extreme Summit series instead
(200-24 and 48si).

However, it's sounding like even with 256 SVI's, if I keep the routing table
small (for example, our Extremes only have about 50 right now), we could
still consider 3550's. In fact, since we may need to upgrade our
Summit200-24 soon, this puts the 3550 back on the map for me.

Anyone else doing lots of SVI's in an OSPF environment with relatively few
routes?

----- Original Message ----- 
From: "Marcel Lammerse" <lammerse at xs4all.nl>
To: "cisco-nsp" <cisco-nsp at puck.nether.net>
Sent: Tuesday, February 08, 2005 12:26 AM
Subject: Re: [c-nsp] Cisco 3550 maximum number of routable interfaces limit?


> Thanks all, I know a lot more abot 3550 performance now :-)
>
> Marcel
>
> On Feb 7, 2005, at 9:46 PM, Mark Boolootian wrote:
>
> >
> >> show sdm prefer only shows you the current template and numbers from
> >> the
> >> published tables.  I'm more interested in tcam resources actually
> >> used/available on the live switches.
> >
> > You and me both.  Surely you know about 'show tcam...'.  I would
> > prefer an interface that allowed me to say 'show tcam statistics'
> > providing a matrix of utilization stats (including stats on routes).
> > _______________________________________________
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> > https://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
> >
> >
>
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