A METHOD AND SYSTEM FOR IMPROVING THE QUALITY OF COMMUNICATION BASED ON THE LABEL DISTRIBUTION PROTOCOL

Title:

A METHOD AND SYSTEM FOR IMPROVING THE QUALITY OF COMMUNICATION BASED ON THE LABEL DISTRIBUTION PROTOCOL

Document Type and Number:

WIPO Patent Application WO/2007/107071

Kind Code:

A1

Abstract:

A method and system for improving the quality of communication based on the label distribution protocol, includes the steps of: when the local label switching router LSR finds out the change of route at the upstream node in the multicast label switching path LSP, it calculates and sets up a new optimized multicast LSP according to the label distribution protocol LDP, and delays to send a withdraw request to the upstream node in the former multicast LSP. By applying the embodiment of the present invention, the interrupt of the data stream in the multicast LSP reconstruction procedure can be avoided or reduced, so that the losing of the data packet caused by the multicast LSP adjustment can be reduced greatly, and the quality of communication of the multicast is improved.

Inventors:

CAO WEI (CN)
XU XIAOHU (CN)

Application Number:

PCT/CN2007/000364

Publication Date:

September 27, 2007

Filing Date:

February 02, 2007

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)
CAO WEI (CN)
XU XIAOHU (CN)

International Classes:

H04L12/18

Foreign References:

JP2005072906A	2005-03-17
EP1515495A2	2005-03-16

Other References: