CCIE: MPLS
MPLS: Autoconfig (enable LDP on all interfaces) only available when using OSPF as IGP. LDP send discovery packets via UDP to 224.0.0.2 (all routers) port 646. Route-ID is highest loopback but can be forced “mpls ldp route-id x.x.x.x force”. To use the physical connection of the interface (not the loopback due to lack of reachability) use this command on the interface. ” mpls ldp discovery transport-address interface”. Once communications is established, via TCP 646, authentication is verified (MD5 only). After peer is…