Whether two NS2 boards are required for the ring protection of the TOM board

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When ring protection is configured for services on the TOM board, if ODUk SNCP protection is configured, two NS2 boards are required to achieve dual feeding and selective receiving for routes in different directions.

Other related questions:
Protection implemented by TOM and DCP boards
Intra-board 1+1 protection can be implemented when the TOM board works with the DCP board.

Whether two LSX boards are required for configuring client 1+1 protection
Services need to be dually fed, and therefore two LSX boards are required.

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.

Whether two GE services on two TOM boards can be cross-connected to the same ODU1 timeslot on an ND2 board
The cross-connections between the TOM and ND2 boards are ODU1 cross-connections, which occupy the entire ODU1 timeslot. Therefore, two GE services on two TOM boards cannot be cross-connected to the same ODU1 timeslot of an ND2 board.

Whether fibers are required to interconnect the TOM and NQ2 boards on the OSN 8800
On the OSN 8800, a TOM board is a tributary board while an NQ2 board is a line board. They are interconnected using cross-connections configured on the NMS instead of using fibers. A cross-connect board is used to achieve the cross-connections between the TOM and NQ2 boards so that services on the two boards can be interconnected.

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