Path method creates OCh failure, what are the possible reasons? (Multiple Choice)

• A.Some pigtails are not connected
• B.Inconsistent wavelength setting at both ends of source and sink
• C.No service layer path
• D.There are still unremoved alarms in the boards involved in OCh.

Comment: *

Name: *

Email: *

Verification: *

When the cross-board is configured with 1+1 hot backup, in the case of normal switching, the replacement of the cross-clock board does not affect the packet service.

• A.TRUE
• B.FALSE

Comment: *

Name: *

Email: *

Verification: *

For the SSM protocol, which of the following statements are correct? (Multiple choice)

• A.When the standard SSM protocol is started, the clock network can be configured in both directions but cannot be looped.
• B.Whether to start the SSM protocol has little effect on the clock network.
• C.When the extended SSM protocol is started, the clock network can be configured in both directions and can be looped.
• D.When the SSM protocol is not enabled, the clock network can only be configured as one-way and cannot be looped.

Comment: *

Name: *

Email: *

Verification: *

The LOA board can implement the L2 scheduling function of the Ethernet in OSN 1800.

• A.True
• B.False

Comment: *

Name: *

Email: *

Verification: *

The following protection methods belonging to NG WDM optical layer protection are: (Multiple Choice)

• A.1+1 protection inside the board
• B.Optical line protection
• C.ODUk SNCP protection
• D.Customer side 1+1 protection

Comment: *

Name: *

Email: *

Verification: *