[j-nsp] Inter provider LDP based L2VPN between a Juniper network and a Cisco network

[Amos Rosenboim]

Hello All,

I'm trying to configure an inter provider LDP based L2VPN between a  
Juniper network and a Cisco network.
The topology is roughly as follows:

Cisco PE-----Cisco P------Cisco P------Cisco ASBR------Juniper  
ASBR-------Juniper P-------Juniper P-------Juniper PE.

In order to achieve this I need to establish the tunnel LSP between  
the PEs in both networks and than establish the LDP signaled VC on top  
of the tunnel LSP.
To establish the tunnel LSP the two ASBRs exchange IPv4+label (or  
labeled unicast in Junos language ) routes between them and advertise  
to each other the loopback IP of the PEs.
On the Cisco ASBR we simply redistribute the Juniper PE loopback into  
the igp and thus the PE has both a route and a label to reach the  
Juniper PE
However on the Juniper side I cannot do the same.
My question is what is the alternative method to achieve the same  
result on the Juniper side?
The solution I can think of is to use labeled unicast routes over iBGP  
between the Juniper ASBR and the Juniper PE but I'm not sure it will  
work (the Juniper network is not under my control so I cannot test).
If this is the solution than should the Juniper P routers also get  
this route or would the Juniper PE impose two labels for the address  
of the Cisco PE (the label derived from BGP for the Cisco PE + the  
label to reach the Juniper ASBR)


Thanks in advance.

Amos