[c-nsp] EoMPLS between subinterface and physical interface

[Marko Milivojevic]

Have you tried to use native VLAN on 7600-1 for the subinterface? Mind
you, I'm not 100% sure if you can actually xconnect native VLAN, but
you may give it a go...

--
Marko
CCIE #18427 (SP)
My network blog: http://cisco.markom.info/

On Tue, Aug 18, 2009 at 09:19, Tassos
Chatzithomaoglou<achatz at forthnet.gr> wrote:
> Arie,
>
> I'm actually trying something strange in the lab, but i wanted to ask
> opinions before
> trying all the alternatives.
>
> More specifically i want to transfer double tagged traffic from multiple
> subifs of a local MUX-UNI interface to multiple remote physical interfaces,
> where the outer tag would be removed.
>
> CPE <===> 3750 <===> 7600-1 <= MPLS-network => 7600-2 <===> CPE-x
>
>
> Something like:
>
> 7600-1
> ------
> int gi1/1
>  desc conn to 3750
>  switch mode trunk              ! these are single-tagged vlans following
> another path
> int gi1/1.100
>  enc dot 100                    ! this is double-tagged that needs to be
> tunneled
>  xconnect x2.x2.x2.x2 y1
> int g1/1.200
>  enc dot 200                    ! this is double-tagged that needs to be
> tunneled
>  xconnect x2.x2.x2.x2 y2
>
> 7600-2
> ------
> int gi1/1
>  desc conn to CPE-1
>  xconnect x1.x1.x1.x1 y1
> int gi1/2
>  desc conn to CPE-2
>  xconnect x1.x1.x1.x1 y2
>
> So double-tagged traffic having an outer vlan of 100, would get transfered
> from 7600-1 gi1/1.100 to 7600-2 gi1/1, where it would/should have the outer
> vlan removed. It's actually like many L2 VPNs starting from one port on
> 7600-1 and ending at many ports (each one on its own) on 7600-2.