METHOD, DEVICE AND SYSTEM FOR DETECTING PATH INFORMATION

摘要

A method, device and system for detecting path information are provided in the present invention. The method includes: a source node generates a path information detection packet, in which a hop-by-hop option is included; the source node transmits the path information detection packet to a destination node, and the node which is required to record node information records the node information of itself in the hop-by-hop option; the source node receives the path information response packet which includes the node information from the destination node, and determines, according to the node information, the information of the path which is to be detected. With the embodiments of the invention, the problem of long time and uncertain success caused by adopting an overtime mechanism can be solved.