A.OCh

B.OTS

C.client

D.ODUk

A.The PM_BIP8_DEG alarm indicates the PM segment signal degradation alarm in the ODU layer.

B.The PM_BIP8_OVER alarm indicates that PM error amount has exceeded in the ODU layer.

C.The PM_BIP8_SD alarm indicates the PM segment signal degradation alarm in the OTU layer.

A.Support light layer crossing

B.Less occupied slots

C.Support single channel optical power monitoring

D.The number of combined waves is more

A.The network administrator cannot obtain any alarms, time, and historical alarms of the device.

B.In the case of complex networking, service, and fault information, many alarms and performance events may occur along with the occurrence of faults. Due to too many reports and performance events, maintenance personnel are unable to analyze.

C.When some faults occur, there may be no obvious alarms or performance events reported, and sometimes no alarms or performance events are found.

D.Field maintenance personnel cannot understand the current health of the equipment.

A.RDU9

B.WSM9

C.WSMD9

D.WSD9