Method and system for improving quality of communication...

Multiplex communications – Pathfinding or routing – Switching a message which includes an address header

Reexamination Certificate

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Reexamination Certificate

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07876755

ABSTRACT:
A method and system for improving a quality of communication based on a label distribution protocol is provided. The method includes the following: When a local label switching router (LSR) finds out a change of a route at an upstream node in a 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. An interruption of the data stream in the multicast LSP reconstruction procedures can be avoided or reduced, so that the loss of data packets caused by the multicast LSP adjustment is reduced, and the quality of communication of the multicast is improved.

REFERENCES:
patent: 6374303 (2002-04-01), Armitage et al.
patent: 6643279 (2003-11-01), Li et al.
patent: 6895441 (2005-05-01), Shabtay et al.
patent: 2004/0218536 (2004-11-01), Yasukawa et al.
patent: 1515495 (2005-03-01), None
patent: 2005072906 (2005-03-01), None
International Search Report for International Application No. PCT/CN2007/000364, dated Apr. 20, 2007, with English translation.
Label Distribution Protocol Extensions for Point-to-Multipoint and Multipoint-to-Multipoint Label Switched Paths, Cisco Systems, Inc., Feb. 26, 2006.
Supplementary European Search Report regarding International Application No. EP07702256 dated Aug. 21, 2009.
Multicast Extensions for LDP dated Mar. 2005, Network Working Group, Internet Draft.
Native IP Multicast Support in MPLS, Arup Acharya and Frederic Griffloul.
Support of LDP Multicast Label Switched Paths over Point-to-Multipoint Label Switched Path Tunnels and on Multi-Access Links, Oct. 2005, Internet Draft.
Overview of IP Multicast in a Multi-Protocol Label Switching (MPLS) Environment. Ooms et al. Aug. 2002.
LDP Specification. Andersson et al. Jan. 2001.
Multiprotocol Label Switching Architecture. Rosen et al. Jan. 2001.
Label Distribution Protocol Extensions for Point-to-Multipoint and Multipoint-to-Multipoint Label Switched Paths. Minei et al. Oct. 2005.
First Chinese Office Action regarding Application No. 200610064983.0. Mailed Jul. 24, 2009. Translation provied by Huawei Technologies Co., Ltd.
First European Office Action regarding Application No. 07 702 256.4-1249. Dated Sep. 29, 2009.
Written Opinion of the International Searching Authority. Mailed May 17, 2007. Translation provided by Huawei Technologies Co., Ltd.

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