Effect on MSP ring protection when an NE is powered off

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Effect on MSP ring protection when an NE is powered off:
If an NE with space-division and time-division cross-connections (for example, VC-4:1 cross-connects to VC-4:2, or VC-4:1 to VC-12:1 cross-connect to VC-4:1 to VC-12:2) is powered off, the space-division and time-division cross-connection services that pass through this NE will be interrupted.

Other related questions:
Msp ring switch to protection theroy
After half time slot on the fiber (channel) protection before half time slot on the fiber channel (work), the rearrangement of fault point on both ends of the bridge, through network elements among them, the business flow to traverse the whole ring

Principles of two-fiber bidirectional MSP ring protection switching
Principles of two-fiber bidirectional MSP ring protection switching: The latter half timeslots (protection channel) in a fiber are used to protect the former half timeslots (working channel). During the switching, the two ends of the failure point are bridged, services pass through the intermediate NEs, and the service flow traverses the entire ring.

Whether MSP ring protection switching will be triggered by removing a line board
Whether MSP ring protection switching will be triggered by removing a line board: When the protocol status is normal, the MSP ring protection switching will be triggered by removing a line board.

Cache flushing time supported by a single BBU of OceanStor V3 after the system is powered off
The BBU can provide power for eight minutes. OceanStor V3 BBUs are in 1+1 backup mode. The cache has enough time to flush dirty data to data coffer disks.

Precautions for changing ring MSP to linear MSP on the Metro 3000
After ring MSP is changed to linear MSP on the Metro 3000, services must be reconfigured.

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