[j-nsp] QinQ between Cisco/Juniper with layer2-tunneling and VPLS

Sebastian Wiesinger juniper-nsp at ml.karotte.org
Fri Feb 10 09:39:07 EST 2012


* Sebastian Wiesinger <juniper-nsp at ml.karotte.org> [2012-01-24 22:23]:
> Hi,
> 
> has anyone working QinQ between Cisco and Juniper running over VPLS
> and with working layer2-tunneling? We have a setup like this:
> 
> EX4200 -- QinQ -- MX === VPLS === MX -- QinQ -- Cisco
> 
> We see that on both ends of the QinQ tunnel CTP/STP/LLDP Pakets are
> encapsulated but on the other side nothing gets decapsulated.

Hi,

it was a rather trivial error, for those who are trying the same:

You need the native-inner-vlan-id statement at your logical interface
unit configuration to get the (untagged) CTP/STP/LLDP trough.

Regards

Sebastian

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