The TAC have a table of the limits which vary on IOS version also.
Also there was at one time a "geek" version of some of the IOS to increase
the limit again.
Regards,
Kevin
----------------------------------------------------------
Kevin Gannon
CCNP,CCDP,MCNS,Cisco Netranger Engineer,HP Openview Consultant
kevin@gannons.net
----------------------------------------------------------
On Mon, 11 Dec 2000, Scott Morris wrote:
> The 300 IDB limit thing hasn't been fixed for quite a while. It's really
> memory and IOS-level dependent right now. If you max out the memory on the
> 2600, you should easily get beyond that in interfaces. I've got about 500
> running on a 3620 between VLANs and Frame sub-interfaces on one clients'
> router. There's a "show idb" hidden command, but unfortunately, I don't
> know any way of finding out the maximum for your configuration.
>
> Scott
>
> -----Original Message-----
> From: Andrew Smith [mailto:awsmith@rip.ops.neosoft.com]
> Sent: Monday, December 11, 2000 2:07 PM
> To: Charles Sprickman
> Cc: cisco-nsp@puck.nether.net
> Subject: Re: [nsp] ISL/dot1Q trunks on 26xx
>
>
> On 11-Dec-2000, Charles Sprickman wrote:
> > Hi,
> >
> > Does anyone know of the max number of subinterfaces one can put on an FE
> > port of a 2600 series router? I'm looking at about 200-400 with a fairly
> > light overall traffic load (less than 6 Mb/s aggregate).
>
> I believe that you are going to hit the max IDB limit on the 2600
> at 300 total interfaces (including subinterfaces).
>
> > Also, what's the general performance impact of doing trunking off of a
> > router?
>
> I haven't seen any significant impact in router performance by simply
> using dot1q or ISL subif's. I don't know much about the physical FE
> on the 2600's and how well it will operate as a "router on a stick"
> as in, how well it performs in full-duplex capacity.
>
> > Thanks,
> >
> > Charles
>
>
>
> ---------------------------------------------------------------------------
> ** Andrew W. Smith ** awsmith@neosoft.com ** Chief Network Engineer **
> ** http://www.neosoft.com/neosoft/staff/andrew ** 1-888-NEOSOFT **
> ** NeoSoft, Inc. An Internet America Company 1-800-BE-A-GEEK **
> ** "Opportunities multiply as they are seized" - Sun Tzu **
> ---------------------------------------------------------------------------
>
>
>
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