HI all I have one question ? LAN ---R1 - - R2 - - R3 - - R4 - - R5 ---> R6 On , R1 , R2 , R3 , R4 , R5 are enabled mpls configured loopback interface with /32 ip , ospf running without problems , mpls also configured using loopback ip . l2mtu configured where needed , mpls configured on 2000 . So pr...