Failure detection in the multiprotocol label switching multicast label switched path's end-to-end protection solution

摘要

In one aspect, the invention includes, in a root node along a secondary label switching path, a computer program product comprising computer executable instructions stored on a non-transitory medium that when executed by a processor cause the root node to perform the following: establish a first data plane based failure detection session having an inactive status along a first label switching path (LSP) with at least one leaf node, receive a predetermined number of notification messages from the leaf node, wherein the predetermined number of notification messages indicate the failure of a second data plane based failure detection session along a second LSP from a second processor to the leaf node, and change the status of the first data plane based failure detection session to active along the first LSP upon receipt of the predetermined number of notification messages.

主权项

1. In a root node along a second label switching path (LSP), a computer program product comprising computer executable instructions stored on a non-transitory medium that when executed by a processor cause the root node to perform the following:
establish a first data plane based failure detection session having an inactive status along the second LSP with at least one leaf node, wherein the at least one leaf node is an edge node; receive a predetermined number of notification messages from the leaf node, wherein the predetermined number of notification messages indicate a failure of a second data plane based failure detection session along a first LSP from a second root node to the leaf node, wherein the root node and the second root node are different root nodes; and change the status of the first data plane based failure detection session to active along the second LSP upon receipt of the predetermined number of notification messages.