Alcatel Lucent

Alcatel Canada Inc.

Francois Z Meguerditchian

William Schaller

Xi S Chen

Dan G M Gravelle

Methods and systems of logging detected protection system related events affecting a protection system are disclosed. A determination is made as to whether a detected event itself or in combination with a previous detected event provides information relating to both a protection switching operation and a cause of the protection switching operation, and if so, a further determination is made as to whether the information relating to a protection switching operation indicates that the protection switching operation has occurred. If both of these conditions are satisfied, a log entry associated with the protection switching operation, or possibly an alarm for the protection switching operation, is recorded in an event log. In one embodiment, an event log entry is created for a detected protection switching operation and then updated to include information related to a subsequently detected event associated with the protection switching operation.

Protection switch logging methods and systems

A system and method of selecting a routing datapath between an active datapath and a redundant datapath for a communication device are provided. The system and method are embodied in a first step of monitoring for a fault occurring in the active datapath and the redundant datapath and upon detection of the fault, a second step of evaluating severity of the fault against a threshold. Further, if the severity of the fault exceeds the threshold and if the fault is associated with the active datapath, then switching the routing datapath from the active datapath to the redundant datapath. If the severity of the fault exceeds the threshold and if the fault is associated with the redundant datapath, then switching the routing datapath of the communications from redundant datapath to the active datapath.

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Aylmer, Canada

Francois Z Meguerditchian