A.ML-PPP

B.CES E1

C.IMA E1

D.Ethernet

A.The value of the outgoing label of the previous node and the incoming label of the next node are equal

B.Multiple labels can be assigned to the same A FEC

C.Tunnel is being created, PHP is not enabled

D.The label values on different nodes of the LSP cannot be the same

A.Before SMAC and DMAC addresses

B.Between SMAC and DMAC addresses

C.After SMAC. and DMAC addresses

D.not fixed

A.Ingress PE to P routing information exchange

B.Ingress PE to egress PE routing information exchange

C.Egress PE to egress CE routing information exchange

D.Local CE to ingress PE routing information exchange

A.The basic framework of the single board provides basic system support, including memory management, process/thread management

B.The software management module in the board is used to manage signaling protocols such as OSPF/1588V2

C.QoS, PwE3, L3VPN and other services are implemented by the service management module

D.The performance and alarm module is mainly used to check the alarm and performance of the single board, and report it to the main control board