A.Bandwidth is dynamically increased or decreased.

B.Failed members are protected and restored

C.Automatic discovery of new network elements and links

D.Provide fault tolerance mechanism to enhance the robustness of virtual concatenation function

A.Overhead Insert

B.Mapping

C.Alignment

D.Multiplexing

A.Rate Adaptation

B.Scrambling

C.Add segment overhead

D.Add pointer

A.Both cross-connecting plates have the same configuration. The service board will selectively receive services from one of them based on the quality of service and the status of the cross-connecting board. .

B.The source business board sends services to the main and standby crossover boards. .

C.After the service cross-connection is completed, the active and standby cross-board sends the data of the primary cross-board to the receiving service board.

D.The bus of the two cross-connected modules works independently and does not interfere with each other. .

E.The receiving service board can only receive data from the active cross-link board

F.Dual bus system structure indicates that the service board performs dual data transfer to the cross-connection side and selectively receives data on the cross-connection side. .

A.OTM-nr.m plus osc signal becomes OTM-nm

B.r means that some functions of the OTM have been removed. Here, it means that the oSC function has been removed.

C.n represents the number of waves carried at maximum capacity

D.m represents the rate, and its value range is 01, 2, 3