The ODUk SNCP protection uses the dual fed and selective receiving function of the cross-connections at the electrical layer to protect the line board and OCh fiber. The granularity is ODU0, ODU1, ODU2, ODU3 or ODUflex services.
The ODUk SNCP complies with the following standards or protocols:
- ITU-T Recommendation G.798 (Characteristics of optical transport network hierarchy equipment functional blocks)
- ITU-T Recommendation G.873.1 (The APS protocol and protection switching operation for the linear protection schemes for the Optical Transport Network at the Optical Channel Data Unit (ODUk) level)
- ITU-T Recommendation G.808.1 (The generic functional models, characteristics and processes associated with various linear protection schemes for connection-oriented layer networks)
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