[j-nsp] local switching l2circuit not passing traffic

[Andy Harding]

David Coulson wrote:
> I have what I thought was a pretty simple config - Two VLANs on two GigE 
> interfaces, on a MX240 running 9.4R2.9 which are cross-connected within 
> the MX using a l2circuit.
> 
> If I remove the 'vlan-ccc' encap from the units and assign an IP, we can 
> ping to something on the other end - So at least we know end-to-end 
> works on both interfaces. Once it's reassembled as a l2circuit, there is 
> no connectivity between the two end points. I'm sure it's something 
> pretty elementary, but I can't determine what it is. Is there a way to 
> sniff or capture traffic on the l2circuit to see what is going on?
> 

The VLAN numbers at both ends of the l2circuit need to be the same for 
it to work.

This is a very poorly documented limitation of the l2circuit feature.

-- 
Regards

Andy Harding
Internet Connections Ltd

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