I have 4 7206vxr npe-400 routers in my network lab.
PE1 and PE2 are running MBGP
I am running OSPF as the IGP protocol
If I connected all the routers using a serial back-to-back connection, the ip routing was working, but mpls was not! when I issue "show mpls ldp nei"...it failed!!
But, if I connect the routers using frame relay switch, everything work fine!!!
Can I know why?