mpls ldp discovery transport-address
I am tyring to rationalize the use of the the "mpls ldp discovery transport-address interface fa0/1" while using the "mpls neigh 22.214.171.124" command between R4 and R6.
If the ldp discovery command is used isn't the tcp session established with the interface address instead of the loopback? Then why wouldn't the neighbor command reflect the neighbors interface address as well? How is the loopback address involved in the ldp session establishment if the configuration forces the use of the interface address?