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

Sebastian Wiesinger juniper-nsp at ml.karotte.org
Tue Jan 24 17:09:30 EST 2012


* Chris Kawchuk <juniperdude at gmail.com> [2012-01-24 22:54]:
> 2. Note that the EX4200's re-write the MAC Address when using QinQ
> (i.e. STP MAC 01:80:c2:00:00:00 becomes PVST+ MAC 01:00:0c:cc:cc:cd,
> for example). Ensure you are un-translating the MAC address at the
> far end MX or at the Cisco; else you end up with a regular RSTP
> Packet with the wrong Destination MAC Address.

Hi,

the Cisco should be decapsulating it (layer2-tunneling is active on
both ends) but it seems no packets are arriving to be decapsulated.

Regards,

Sebastian

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