Method, apparatus, and system for detecting connectivity

摘要

The present invention discloses a method, an apparatus, and a system for detecting connectivity. A node receives connectivity detection request information; determines, according to nicknames of target nodes, whether the is one of the target nodes; if the node is one of the target nodes, sends connectivity detection reply information to a source node; if the node is not one of the target nodes, performs corresponding processing according to a value of a hop count and whether the node is on a path that is in the multicast distribution tree and is from the source node to any one of the target nodes. With the present invention, a source node is capable of receiving only a feedback of a node on a true path, thereby making it easier to identify a path.

主权项

1. A method for detecting connectivity, the method comprising:
receiving, by a routing bridge, a connectivity detection request packet comprising at least: a nickname of a source node, a nickname of a multicast distribution tree, a nickname of at least one target node, and a hop count value, wherein the routing bridge is a non-source node that is in the multicast distribution tree; sending, by the routing bridge, a connectivity detection reply packet to the source node when the routing bridge is one node of the at least one target node; when the routing bridge is not one of the at least one target node, determining, by the routing bridge, whether the routing bridge is on a first path that is based on the nickname of a source node, the nickname of a multicast distribution tree, and the nickname of at least one target node, and wherein the first path is in the multicast distribution tree and starts with the source node and ends at one of the at least one target nodes; and performing, by the routing bridge, processing according to the hop count value and the determination.