US 2003/0147346 A1 · Label switching router, label switching network and label switched path setting method

Abstract

To provide a label switching network in which the network resources and the operation cost can be reduced, and the scalability problem to a large scale network can be solved. If an LSR detects a fault in the label switched path, the LSR retrieves an LSP fault indication retrieval table to solve an LSP fault of what contents to be notified to which protection point for a faulty label switched path. After solving it, the LSR notifies the LSP fault indication to the protection point. In the LSR-P of protection point, if an LSP fault indication packet from the LSR having detected the LSP fault is received, the label switched path to be switched is designated from the information contained in that message, and the switching of the corresponding label switched path is performed.

Claims26

Dependent claims

A label switching router in a label switching network which is operated by setting a switched path between routers with a command, comprising:

means for detecting a fault in said label switched path;
means for notifying a fault detection indication to a preset bypass point;
and
means for switching said label switched path on the basis of message contents when receiving said fault detection indication from other routers.

1 more element

Dependencies are inferred from the claim text.

Label switching router, label switching network and label switched path setting method

Life of this patent

Label switching router, label switching network and label switched path setting method

Life of this patent

Abstract

Claims26