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.
--
Tassos
Arie Vayner (avayner) wrote on 17/08/2009 21:57:
Tasso,
What are you trying to achieve?
Arie
-----Original Message-----
From: cisco-nsp-boun...@puck.nether.net
[mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Tassos
Chatzithomaoglou
Sent: Monday, August 17, 2009 20:04
To: cisco-nsp
Subject: [c-nsp] EoMPLS between subinterface and physical interface
I'm reading under EoMPLS Guidelines and Restrictions
http://www.cisco.com/en/US/docs/routers/7600/ios/12.2SR/configuration/gu
ide/pfc3mpls.html#wp1109041
======================================
For a particular EoMPLS connection, both the ingress EoMPLS interface on
the ingress PE and the egress EoMPLS interface
on the egress PE have to be subinterfaces with dot1Q encapsulation or
neither is a subinterface.
======================================
So, i guess in PFC-based EoMPLS you can't have a subinterface on one
side (vlan mode) and a physical interface (port
mode) on the other side.
Besides using ES/SPA cards and scalable EoMPLS on both sides, is there
another solution?
What about scalable EoMPLS on one side and PFC-based EoMPLS (vlan or
port mode) on the other? Has anyone tried it?
--
Tassos
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