Path setting control system in communication network

Details Path setting control system in communication network Path setting control system in communication network

1995-06-22

1997-01-28

Olms, Douglas W.

Multiplex communications

Fault recovery

Bypass an inoperative station

H04J 314

Patent

active

055984037

ABSTRACT:
A path setting control system in a communication network includes terminal nodes located at both ends of a path for data transmission and a plurality of relay nodes located at intermediate positions in the path, and performing alternation process of the path at the occurrence of simultaneous failure in two transmission lines at both sides of one relay node among a plurality of the relay nodes. The path setting control system has a path alternation designating portion in a relay node located at the closest position to the one relay node, for commanding alternation of the path to the terminal node in response to occurrence of failure in the transmission line, a path releasing and alternating portion incorporated in the terminal node, for performing path releasing process and alternating process in response to the alternation command, and a path release designating portion incorporated in the terminal node, for commanding release of the currently set path for the one relay node in response to alternation command for the path transmitted from the one relay node due to failure of one transmission line upon recovery of failure in one of the two faulty transmission lines.

REFERENCES:
patent: 4542496 (1985-09-01), Takeyama et al.
patent: 5031093 (1991-07-01), Hasegawa
patent: 5241533 (1993-08-01), Kimoto et al.

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