Interworking on Static Routing as IGP

Question

Was testing interworking between Vlan over ethernet and FR. As long as my LDP was on static routing, I couldnt reach end-to-end. The moment i configured OSPF as my routing protocol it came up. Can anyone let me know what the reason could be ?

Answer 1

Gautam,
This is actually normal behavior.
Before the label learnt via an LDP peer is coupled to a route in the FIB, the next-hop IP address of the route needs to match one of the interface IP addresses bound to the LDP peer (see below). So basically it will not work without a next IP address.
r2#sh mpls ldp nei
Peer LDP Ident: 3.3.3.3:0; Local LDP Ident 2.2.2.2:0
TCP connection: 3.3.3.3.11004 - 2.2.2.2.646
State: Oper; Msgs sent/rcvd: 27/27; Downstream
Up time: 00:15:07
LDP discovery sources:
Serial3/0, Src IP addr: 192.168.23.3
Addresses bound to peer LDP Ident:
3.3.3.3 192.168.34.3 192.168.23.3 <++++++ the route next hop has to match one of these addresses.
Hope this helps,