Patent ID: 9407535
Filing Date: 2016-08-02
CPC Classification: H04L

Claim Text:
1. A packet network linear protection method in a dual or multi-home configuration, comprising: designating each of a plurality of home nodes in the dual or multi-home configuration as a working home or a protect home; designating each link between each of the plurality of home nodes and an end node in the dual or multi-home configuration as active or standby; operating a protection switch state machine based on an associated linear protection protocol at each of the plurality of home nodes and the end node; communicating protection messages to each of the plurality of home nodes from the end node; communicating protection states in an associated protection switch state machine by each of the plurality of home nodes to other home nodes and to the end node; communicating the protection states by each of the plurality of home nodes to other home nodes via the end node; and implementing protection switching responsive to a fault on any link between each of the plurality of home nodes and the end node, wherein the associated protection switch state machine at a home node of the plurality of home nodes isolated by the fault is out of synchronization until recovery of the fault.