Reason of the failure to search out a trail for GE services on the TOA board when no logical cross-connection is created

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In ANY_ODU0 mode, each IP port one-to-one maps an LP port on the TOA board. This ensures that services can be provisioned even when no cross-connection is configured. Client trails, however, are configured on the NMS. No client trail can be formed without cross-connections.

Other related questions:
Cause for the failure to create ODU1 cross-connections on TN52TOM boards on OSN 6800 (without cross-connect boards)
The TN52TOM board does not support distributed ODU1 cross-connections.

Reason for the failure to set GE (TTT-GMP) for an LQM board
TNF2LQM supports GE (TTT-GMP) only when working in 1 x AP2 ODU0 mode. In the case of GE services, select a proper service type according to the source of the GE services. The service type should be set to GE(TTT-GMP) for transmitting synchronous Ethernet services. The service type should be set to GE or GE(GFP-T) for transmitting common GE services.

Whether OTU1 services can be created by trail
According to the current product specifications, when the service type is OTUk at the source and sink, client OTUk trails cannot be managed in E2E mode, and OTUk services cannot be created by trail. Instead, they can be created manually by site.

ODU1 cross-connections failing to be created on the TN52TOM board of OSN 6800 where no cross-connection is configured
The TN52TOM board does not support distributed ODU1 cross-connections.

Reason for a WAVELEN_OVER alarm reported on the WMU board when physical and logical fiber connections are inconsistent
When physical and logical fiber connections are inconsistent, the wavelength locking function triggers a false wavelength adjustment. As a result, a WAVELEN_OVER alarm is reported.

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