Principle and protected object of ODUk SNCP protection in the OSN 8800

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ODUk SNCP protection is a type of linear protection implemented using the dual feeding and selective receiving function. ITUT-T G.873.1 defines it as a linear OTN protection for ODUk services. Usually, one tributary board and two line boards are required to configure ODUk SNCP protection and implement dual feeding and selective receiving.

Other related questions:
Principles of ODUk SNCP protection
Generally, ODUk SNCP protection needs to be configured using one tributary board and two line boards to implement dual feeding and selective receiving of ODUk services in the OTN network.

Switching time of ODUk SNCP protection
The switching time of ODUk SNCP protection cannot exceed 50 ms, excluding the detection time.

ODUk SNCP protection switching conditions
ODUk SNCP is classified into SNC/I, SNC/N, and SNC/S. The difference between the three protection schemes lies in that they have different monitoring capabilities and therefore have different trigger conditions.

ODUk SNCP protection of the SNC/I type
ODUk SNCP (SNC/I) protects services against defects detected at the ODUk link connection (such as server layer trails and server/ODUk adaptation functions). It does not detect defects at the ODUk layer itself. Connections may be indirectly monitored by using the data that is inherently available from the server layer network.

Service direction in ODUk SNCP protection
ODUk SNCP uses the dual feeding and selective receiving function of electrical-layer cross-connections to protect services on line boards and OCh fibers.

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