Path status monitoring method and device

Details Path status monitoring method and device Path status monitoring method and device

2007-12-28

2010-11-09

Yao, Kwang B (Department: 2473)

Multiplex communications

Diagnostic testing

Path check

Reexamination Certificate

active

07830808

ABSTRACT:
In a path status monitoring method and device which can enhance or reduce a band more rapidly, for example, SONET frames FR serially connected over 32 frames to which frame Nos. FN (“0”-“31”)) are assigned are cyclically generated respectively for paths P0-P2in a cycle TC(=64 ms). After output timing delays TD0-TD2of the frames FR are shifted by an optimal delay interval D (=21 ms) between the paths P0-P2based on the number of the paths “3”, the output timing delays TD1and TD2are restored by preliminarily obtained transmission delays for the paths P1and P2to the path P0. When the frames FR are transmitted through each of the paths P0-P2, statuses (path statuses MST) where a reception fault has occurred in each of the paths P0-P2are collected to be stored in the frame whose frame No. FN=“0”.

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