[c-nsp] Loopback/VLAN question

Peter Rathlev peter at rathlev.dk
Tue Dec 15 13:54:27 EST 2009


On Tue, 2009-12-15 at 08:30 -1000, Antonio Querubin wrote:
> On Tue, 15 Dec 2009, Frank Bulk - iName.com wrote:
> > I have several uniquely numbered 802.1q tagged links coming into a
> > Cisco 7609-S (12.2(33)SRB3) on a single physical port.  I would like
> > to use the same group of subnets for each VLAN and I tried using
> > loopbacks but it doesn't work.  Any ideas on what I'm doing wrong?
> 
> Use BVI's, not loopbacks.

I don't think using BVIs on a L3 switch will do much good; if it would
work (can they do anything but "fallback bridging"?) it would probably
be very bad performance wise.

As for the original question, I wouldn't have thought a PFC3B could do
such a thing, but one can never know. I suppose it _has_ to work like
that?

-- 
Peter





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