[c-nsp] Q-in-Q frame sent into Q-in-Q tunnel

[Stevan Zupanic]

Hello,

As long as you adjust your switching MTU for 4 dot1q tags, things should
work fine.  We have a customer who is doing Q-in-Q on in our Q-in-Q already.
I believe (but don't quote me on this!) you can have up to 8 layer 2 dot1q
tags at once.


Stevan Zupanic



-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Jeff Fitzwater
Sent: Thursday, February 10, 2011 3:01 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Q-in-Q frame sent into Q-in-Q tunnel



 I have an external customer which I need to tunnel across our network, but
the traffic they are sending is QinQ  already;   Can I QinQ the traffic
again so that I can control the VLAN ID ?   

Is my only concern the additional 4 bytes that I have to add to the MTU size
in all the switches it propagates through?



Thanks for any help.




Jeff Fitzwater
OIT Network Systems
Princeton University





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