Method for Inheriting Attribute of Forwarding Adjacency in Multilayer Network and Corresponding Multilayer Network

摘要

The present invention provides a method for inheriting an attribute of a FA in a multilayer network, which comprises: returning information of a first attribute of each link on a FA LSP in a path computation reply message to an upper layer head node, and initiating connection setup; a head node on the FA LSP constructing the first attribute of this FA according to information of the first attribute of each link on the FA LSP included in a path message sent from a upstream node and storing the first attribute of this FA, and sending information of the first attribute of this FA to a downstream node; and c) the tail node on the FA LSP obtaining information of the first attribute of this FA and storing the first attribute of this FA. The present invention also provides a multilayer network.