Method used to process and analyze the CPW_OTU_TEL_PATHMIS alarm

1. Possible causes for the CPW_OTUk_TEL_PATHMIS alarm are as follows:
(1) The optical-layer ASON and electrical-layer ASON are enabled at the same time.
(2) The resource reservation statuses on the source and sink boards are inconsistent.
(3) The resource occupancy statuses on the source and sink boards are inconsistent.
(4) The cross-connection configurations on the source and sink boards are inconsistent.
(5) The networkwide electrical-layer flooding modes are inconsistent.
2. Solutions:
(1) Possible cause 1: If the optical-layer ASON and electrical-layer ASON are enabled at the same time but the electrical-layer ASON is not required, disable the electrical-layer ASON.
(2) Possible cause 2: Confirm with the customer to change the resource reservation statuses to the same.
(3) Possible cause 3: Confirm with the customer to change the resource occupation statuses to the same.
(4) Possible cause 4: Check the channel occupation statuses at both ends of the link. If the link is occupied by static services at one end but is occupied by ASON services at the other end, downgrade ASON services to static services. Check whether the egress channel is idle but the ingress channel is not. If unidirectional cross-connections are residual, delete unidirectional cross-connections or add reversed cross-connections.
(5) Possible cause 5: Change the flooding modes of networkwide electrical-layer links to the same.

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