Patent ID: 8040793
Filing Date: 2011-10-18
Classification: H04L,H04Q

Abstract:
1. A method for processing failure, applicable to a label switched path (LSP) comprising a first node, a second node and at least one third node, wherein the first node and the second node are adjacent nodes suffering communication breakdown, the first node restarts, and the third node is a normal node closest to the first node, and wherein the method comprises: maintaining, by the third node, control state information of the LSP while communication between the first node and the second node is broken in a certain period of time wherein the communication between the first node and the second node is still broken after the first node restarts; recovering, by the first node, the second node and the third node, the control state information of the LSP after the communication between the first node and the second node is recovered, wherein the communication is recovered in the certain period of time; and wherein the maintaining the control state information of the LSP comprises: sending, by the third node, a recovery message to the first node; constructing and returning, by the first node, a recovery reply message to the third node, and beginning counting time; and maintaining, by the third node, the control state information of the LSP according to the recovery reply message from the first node when counted time does not exceed the certain period of time, wherein if the communication between the first node and the second node is recovered, the first node stops counting time.