Non-intrusive monitoring

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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.

Other related questions:
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.

Configuring non-intrusive monitoring for ODUk SNCP
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.

Method used to enable non-intrusive monitoring using commands
You can use the cfg-set-nomodeen command to query whether non-intrusive monitoring is enabled, and use the cfg-set-nomodeen command to set non-intrusive monitoring.

Whether PM non-intrusive monitoring needs to be enabled for SNC/N services
Yes, PM non-intrusive monitoring needs to be enabled for SNC/N services. This configuration is automatically completed on the NMS and no manual operation is required in a version later than V100R006C01.

Configuring the scheduled update time for the intrusion prevention signature database
The threat signature database is the IPS signature database. By default, the IPS signature database is updated once every week. You can set the scheduled update time of the signature database on the web UI or through the CLI.

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