Multiplex communications – Diagnostic testing – Using oam cells
Patent
1996-11-06
1998-05-26
Kizou, Hassan
Multiplex communications
Diagnostic testing
Using oam cells
307 101, 370432, 34082506, H04L 12403
Patent
active
057577730
ABSTRACT:
To provide a multiplex communication system where nodes can reliably shift to a sleep state even though the system has a very simple structure and even if abnormal conditions occur in any node, multiple nodes communicate with each other through a communication network, and when the individual nodes are in a state of being unable to shift to a sleep state, they set a sleep disable bit in signals to be transmitted and transmit them. When they become able to shift to the sleep state, the individual nodes confirm that they have not yet received an active sleep disable bit sent from other nodes continuously over a predetermined period of time or more. Thereafter, each individual node proceeds to the sleep state. According to the system, the individual nodes can proceed to the sleep state by simply determining non-transmission of the sleep disable bit from other nodes even in the presence of nodes deactivated due to failures.
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Bnimoussa A.
Denso Corporation
Kizou Hassan
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