Route control method of label switch path

Details Route control method of label switch path Route control method of label switch path

2005-06-27

2010-12-14

Vu, Huy D (Department: 2461)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S237000, C370S389000, C370S392000, C370S395200, C370S400000

Reexamination Certificate

active

07852758

ABSTRACT:
In generation of an MPLS path which extends over plural routing areas or generation of a GMPLS path of a single routing area, a path originating node cannot conduct route computation of the whole path. Therefore, where plural paths are generated, there is a problem that reliability and communication quality cannot be secured. In a label switch path generation processing intended for MPLS and GMPLS networks, a path originating node is provided with a unit for setting restricted link information in a label allocation request message and sending it, and a node having received the label allocation request message is provided with a unit for selecting another route, which does not pass through the restricted link according to the restricted link information, and generating a path.

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