单项选择题
A.ldp explicit-null B.mpls forwarding explicit-null C.mpls ldp advertise-labels explicit null D.mpls ldp explicit-null
A. O IA B. O E1 C. O E2 D. O
A.only the local OSPF routes B.only the OSPF routes installed in the routing table C.only the remotely learned OSPF routes D.all the OSPF routes from the OSPF database that are eligible to be put in the routing table