[nsp] dot1q subints on 6500/sup720

Jared Mauch jared at puck.nether.net
Tue Mar 30 12:09:13 EST 2004


On Tue, Mar 30, 2004 at 11:58:31AM +0100, Simon Lockhart wrote:
> Dear Collective Wisdom,
> 
> We're just planning our migration from 7200/GSR to 6509/Sup720, and one area
> that may be an issue for us is dot1q subints. We have a number of ports
> which go off to carriers who deliver private interconnects on different
> VLANs. Currently we terminate these on a 7200, and nicely create subints
> for each VLAN.
> 
> Now, as we migrate to the 6500, I see that we can still create subints, but
> it won't let us use the same VLAN id on two different physical interfaces.
> This makes sense, as it's just using one VLAN table for the whole switch.
> 
> However, what's the best way to remove this restriction? Is the GE-WAN the
> only answer? What about for 100M ports?

	It sounds like what you want to do is vlan rewrite inbound
from your metro gig-e providers.  I've not had a need to do any of
this as we don't have two ge trunks on the same 6500.

	- jared

-- 
Jared Mauch  | pgp key available via finger from jared at puck.nether.net
clue++;      | http://puck.nether.net/~jared/  My statements are only mine.


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