[TechNotes] Troubleshooting GPON ONU Profile Match state is Mismatch

Context

The ONU matching status indicates whether the actual ONU capability is the same as the service profile bound to the ONU. The status includes: initial, mismatch, and match. To some extent, the matching status is determined by the ONU running status and configuration status.

• The matching status of the ONU can be queried only when the ONU running status is online. The matching status is match when the actual hardware capability of ONU is the same as the ONU service profile bound with the ONU. Otherwise, the status is mismatch.

• In other configuration states, the matching status is initial.

• The ONU matching status does not affect the normal forwarding of the service flow, and only indicates whether the actual ONU capability is the same as the service profile bound to the ONU.

In practice, ONUs in the offline state are bulk pre-configured on the OLT to facilitate service provisioning. An ONU service profile and an ONU line profile are specified during such configurations. The ONU profiles together can be regarded as a virtual ONU. Subsequent services are configured based on this virtual ONU. Inconsistency between the capability set configured in the ONU profiles and the actual ONU capabilities involves the following two situations:

• The configured capability set outmatches the actual ONU capabilities. If the ONU is bound to such ONU profiles, ONU configurations will fail to match when the ONU goes online.

• The configured capability set undermatches the actual ONU capabilities. In this case, the ONU capabilities that are not covered by the ONU profiles will fail to be configured or applied.

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