Title:
A PROTECTION SWITCHING METHOD FOR MULTI-PROTOCOL LABEL SWITCHING NETWORK
Document Type and Number:
WIPO Patent Application WO/2006/081731
Kind Code:
A1
Abstract:
The present invention is a protection switching method for multi-protocol label switching network, it comprises: creating a working label switched path (LSP) and a protection LSP between the inbound label switched router (LSR) and the outbound LSR, and creating a fast reroute LSP for the protected part of the working LSP, the inbound LSR sending work traffic via the working LSP and inserting detection message, if the inbound node to which the FRR LSP connected detecting that the working LSR having error, the inbound node switching the working traffic from the working LSP to the FRR LSP, if the outbound LSR having not received the detecting message, the outbound LSR sending the backward error indicating information to inbound LSR via the backward path, inbound LSR switching the working traffic to the protection LSP. With the present invention, securing the LSP protecting switching speed as well as increasing the quantity of the protection LSP, and saving the network bandwidth, securing the use of service, and not bringing heavy load to CPU.
Inventors:
WU JIAN (CN)
Application Number:
PCT/CN2006/000046
Publication Date:
August 10, 2006
Filing Date:
January 12, 2006
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
WU JIAN (CN)
WU JIAN (CN)
International Classes:
H04Q1/20
Domestic Patent References:
| WO2003050553A1 | 2003-06-19 |
Foreign References:
| CN1466832A | 2004-01-07 | |||
| US20020112072A1 | 2002-08-15 |
Attorney, Agent or Firm:
DEQI INTELLECTUAL PROPERTY LAW CORPORATION (No. 1 Zhichun Road Haidian District, 3 Beijing, CN)
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