Patent ID: 9503364
Filing Date: 2016-11-22
CPC Classification: H04L

Claim Text:
1. A method for calculating a label switching path LSP), comprising: acquiring layer domain information of one or more nodes in an autonomous system where a source node in a network is located, wherein, for each of the one or more nodes, the layer domain information of the node comprises information of a layer rank of the node and information of a domain value of the node; wherein in the network, each node has a layer rank and at least one domain value; wherein nodes in one network layer have a same layer rank, and a node in a low level of the network layer has a higher layer rank than a node in a high level of the network layer; wherein nodes in one network physical coverage area have a same domain value, and nodes in different network physical coverage areas have different domain values; and when a destination node and the source node are in a same autonomous system, calculating a LSP from the source node to the destination node based on the layer domain information of each of the one or more nodes, to create the LSP based on the calculated LSP, wherein the calculating the LSP from the source node to the destination node comprises: