METHOD, NETWORK NODE AND SYSTEM FOR ESTABLISHING A PATH IN A MULTI-LAYER NETWORK

摘要

A method, a network node and a system for establishing a path in a multi-layer network are disclosed, while the subject-matter belongs to the network technology art. The method includes: sending a call message carrying interface configuration information to the destination node, receiving a returned call acknowledgement message from the destination node, wherein a result is carried by the call acknowledgement message after the destination node configures the interface according to the interface configuration information; determining whether the interface configuration of the destination node is successful or not according to the call acknowledgement message, and if it is successful, configuring the interface at the local node, and then establishing a connection path between the local node and the destination node. A network node includes: a receiving and sending module and an establishing module. Another network node includes: a receiving module and an authentication module. The said system includes: a source node and a destination node. The efficiency of configuring interface is advanced, the establishing time of service path is shortened, the separation is realized between the dynamic configuration of the interface and the establishment process of the connection, and it is simple and convenient, easy to realize, and with good expansibility.