A.DLCI is used to identify a physical interface or logical interface on the router

B.On the same link, each virtual circuit is identified by a unique DLCI

C.The range of DLCI that users can use is 15~1007

D.In the frame relay switching network, the frame relay frame only changes the destination DLCI, that is, the value of the next hop DLCI, and does not change the value of the source DLCI at the sending end

A.Async interface

B.Serial interface

C.Dialer interface

D.PRI interface

A.Establish

B.Dead

C.Terminate

D.Network

E.Authentication

A.The host discovers the prefix and other configuration parameters of the router and its network

B.The router discovers the IPv6 address of the host in the network

C.The router discovers the prefix and other configuration parameters of the host in the network

D.The host discovers the IPv6 address of the router in the network

A.Port number

B.Port number and IP address

C.Port number and MAC address

D.IP address and MAC address