[j-nsp] l2circuit between ASR9k and MX80

[Marcin Kurek]

Hi Saku,

>So  what happens here is Cisco somehow dynamically determines what is 
required.
>In  7600 with this config 3101 _Will be popped_ and _internal VLAN_ will be
>pushed,  before sending it out to MPLS network.
>But  as it works with you, it is probably pushing 3101 again.
>Magically  same config in Cisco works against untagged and tagged EoMPLS. Sadly
>i's  not even possible to explictly/self-documenting configure it 'correctly',
>as  what you'd want to configure is:
 >
>I  would recommend adding to junos config output-vlan-map swap, so you 
can deal
>with  different SVLAN in each end.

Thanks for your reply. This is strange, even if it is pushing 3101 
again, there should be two VLAN tags in a frame received by MX - outer 
3101 and inner dummy tag.
But I can't see this dummy tag in the dump I made on CE, so I'm pretty 
sure it has to be stripped off somewhere.
It is magic ;-) The worst thing is that I cannot find any good 
documentation on this.

Thanks,
Marcin