[c-nsp] 802.1q - Max Number of Subinterfaces

[Michael K. Smith - Adhost]

Hello:

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of J Springer
> Sent: Thursday, April 12, 2007 8:18 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] 802.1q - Max Number of Subinterfaces
> 
> I am interested in recommendations on a Cisco unit that will terminate
> a minimum
> of 2000 (preferably 4096) VLANs.
> 
> The ethernet (Gig or Fast) will be set to trunk.
> 
> I've tested SVI on a couple of switches and 802.1Q subints on routers
> but am
> finding conflicting documentation regarding the maximum number of
VLANs
> that
> various pieces of equipment support.
> 
> Will a 7206VXR suffice for this purpose?  Is there unit better suited
> and
> possibly less cost?
> 

Something to be aware of is the per-interface sub-interface limits for
the various cards.  Perhaps someone has a pointer to an official Cisco
document, but I *think* almost all of the FE/GE interfaces on the
7200-series support up to 256 sub-interfaces.  Thus, you'd have to have
multiple interfaces to hit the chassis limit.

Regards,

Mike