hostname r4 password zebra log file ldpd.log ! ! debug mpls ldp zebra ! debug mpls ldp event ! debug mpls ldp errors ! debug mpls ldp messages recv ! debug mpls ldp messages sent ! debug mpls ldp discovery hello recv ! debug mpls ldp discovery hello sent ! mpls ldp router-id 4.4.4.4 ! address-family ipv4 discovery transport-address 4.4.4.4 ! interface r4-eth0 ! ! ! line vty !