A.Data consistency check

B.Alarm synchronization

C.Download data from the NMS to the problematic NE

D.Upload data from the network element side to the network management

A.The U2000 northbound CORBA interface and the U2000 server run on the same machine, and the machine configuration is required to be able to install and run the U2000 server, and no additional hardware configuration is required

B.In the U2000 CORBA configuration, configure at least one of the filtering virtual network element switch and virtual network element switch collar

C.The default port numbers of normal mode and SSL mode in the basic configuration of U2000 CORBA are different

D.Set the host address, enter the host name or IP address according to the network management plan and design. The "host" mentioned here refers to the computer that provides CORBA services

A.1565nm

B.1511nm

C.1510nm

D.1491nm

E.1550nm

A.FALSE

B.TRUE

A.This alarm will not be reported in AFEC mode.

B.The FEC mode settings of the OTU at both ends are incorrect.

C.The input optical power of the OTU board is too high or too low

D.The signal has too much loss in line transmission.