[nsp] remapping VLAN IDs between .1q trunk ports on the 3550?

Stephen J. Wilcox steve at telecomplete.co.uk
Mon Sep 22 15:08:03 EDT 2003


On Mon, 22 Sep 2003, Lars Erik Gullerud wrote:

> On Sun, 2003-09-21 at 00:06, Sean Mathias wrote:
> > Well, I don't believe the 3550 has precisely what you are looking for.
> > The best/closest it can offer from my understanding would be
> > double-tagging in 802.1q tunneling.  I understand your dilemma and
> > scenario, but this really is an access switch, not what I expect to be
> > used as a PE/PE device.
> 
> This has little relation to the "PE/PE" device usage, what he is asking
> for is a pretty simple VLAN-translation feature. And AFAIK, apart from
> Cisco's "dot1q-to-ISL mapping", they have never offered a
> VLAN-translation feature on ANY switch series, a feature which is
> present in alot of vendors gear even down to the "access switch" range.
> 
> There are a lot of scenarios where one might want VLAN XX on one
> trunk-port leaving as VLAN YY on another, without spaghetti-cabling
> between N number of switches and ports manually to do "VLAN
> cross-connects".

Yes, if Cisco are looking to see if this is desired or not I'd say definitely
and it would be widely used if available.. I have had similar problems, the most
recent a couple weeks ago.

Steve



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