[j-nsp] ldp transport address 0.0.0.0

[Mohammad Salbad]

Hi experts

I have mx and acx routers both running isis and rsvp and I have mpls lsp
configured between their loopbacks.
when trying to establish ldp and l2circuits it does not work and when I do
show ldp neighbor details from both sided it gives me trasport address
0.0.0.0
noting that I have almost similar setup in my lab and it is working!
any ideas what could make the transport address to be 0.0.0.0 while the
neighbor address is ok?