Configuring non-intrusive monitoring for ODUk SNCP

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When the SNCP type is set to SNC/N for the TCM layer, to ensure that the ODUk_TCMn_OCI, ODUk_TCMn_LCK, or ODUk_TCMn_AIS alarm can trigger ODUk SNCP protection switching, the TCM overhead of the source and sink boards needs to be configured as follows:
For the source end:
Source Enable Status must be set to Enabled.
Source Mode must be set to Transparent Mode.
Non-Intrusive Monitoring must be set to Enabled.
For the sink end:
Sink Enable Status must be set to Enabled.
Sink Mode must be set to Transparent Mode.
Non-Intrusive Monitoring must be set to Enabled.
When the SNCP type is set to SNC/S for the TCM layer, to ensure that the ODUk_TCMn_OCI, ODUk_TCMn_LCK, or ODUk_TCMn_AIS alarm can trigger ODUk SNCP protection switching, the TCM overhead of the source and sink boards needs to be configured as follows:
For the source end:
Source Enable Status must be set to Enabled.
Source Mode must be set to Operation Mode.
Non-Intrusive Monitoring must be set to Disabled.
For the sink end:
Sink Enable Status must be set to Enabled.
Sink Mode must be set to Operation Mode.
Non-Intrusive Monitoring must be set to Disabled.

Other related questions:
Non-intrusive monitoring
When the client side of a board receives OTN signals, the board does not need to terminate and then regenerate TCM overheads. In this case, the non-intrusive monitoring function can be enabled to monitor the received OTN signals. The function does not affect service signals.

Application scenario of non-intrusive monitoring
When the non-intrusive monitoring function is enabled at an optical port of a board, the board detects the signal quality of the optical port and will report an alarm if the signal quality is poor. The protection module performs operations such as protection switching based on the detection results. If the non-intrusive monitoring function is disabled, the optical port transparently transmits the received signal.

ODUk SNCP service configuration procedure
ODUk SNCP service creation by trail: (1) Configure TCM overheads of the line board. (2) Set board parameters. (3) Create a client trail. (4) Create ODUk SNCP protection. (5) Check ODUk SNCP protection status. ODUk SNCP service creation by single site: 1. Configure ODUk SNCP protection at the transmit site. (1) Configure OTN overheads of the line board. (2) Set board parameters. (3) Create ODUk SNCP protection. 2. (Optional) Configure an electrical regeneration site. (1) Set board parameters. (2) Create bidirectional electrical cross-connection services. 3. Configure ODUk SNCP protection of the receive site. 4. Check ODUk SNCP protection status.

Precautions for selecting the SNCP type during ODUk SNCP configuration
When configuring ODUk SNCP protection, you are advised to set the SNCP type to SNC/N to enable non-intrusive monitoring on both the source and sink ends of the protection group. This setting facilitates network monitoring. In cascading or nested protection scenarios, however, you are advised to set the SNCP type to SNC/S.

Procedure for configuring ODUk SNCP services
The procedure for configuring ODUk SNCP services is as follows: 1. Determine the type of the ODUk SNCP to be configured. 2. Configure the OTN overheads for line boards. 3. Create an SNCP service.

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