Patent ID: 9515871
Filing Date: 2016-12-06
CPC Classification: H04L

Claim Text:
1. A linear protection switching method of nodes in a MPLS (Multi Protocol Label Switching)-TP (Transport Protocol) network, comprising: converting a state of a node to a remote state in response to a message received from a far-end node; upon detection of a new local request by the node in the remote state, transmitting a protection state coordination (PSC) message containing request information, traffic data path information and fault path information and indicating a local fault condition and a request state to the far-end node according to a priority of the new local request, and transmitting/receiving traffic through a protection or working data path; upon detection of a local request having a highest priority, converting a state of the node to a local state; and upon detection of a new remote request by the node in the local state, transmitting a PSC message containing request information, traffic data path information and fault path information and indicating a local fault condition and a request state to the far-end node according to the priority of the new remote request, and transmitting/receiving traffic through a data path matched with the data path of the far-end node according to the traffic data path information.