Path network and path network operation method using...

Multiplex communications – Fault recovery – Bypass an inoperative channel

Reexamination Certificate

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C370S227000, C370S244000, C370S522000, C398S005000, C340S002100, C340S870030

Reexamination Certificate

active

06947377

ABSTRACT:
A path network and a path network operation method capable of dealing with an abrupt traffic variation by realizing fast path bandwidth increase are disclosed. A path network is operated by transmitting path signals from a transmitting node to a receiving node through the working paths and the protection paths, and converting a protection path into a working path temporarily in order to increase a bandwidth of the working paths when a bandwidth increase request occurs in the path network. The transmitting node and the receiving node can convert a protection path into a working path by using the automatic path conversion information contained in the path overhead attached to the path signals.

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