Ring network with temporary master node for collecting data from

Details Ring network with temporary master node for collecting data from Ring network with temporary master node for collecting data from

1994-06-30

1995-10-24

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

34082515, 34082516, 370 856, 370 858, 370 8515, 371 112, 39518401, 39518319, 39518502, 39520021, 39520005, H04L 122

Patent

active

054616085

ABSTRACT:
In a ring network where network nodes are interconnected by an optical fiber ring, one of the nodes acts as a master node and each of the other nodes acts as a slave node. The master node successively designates a different slave node in a descending order of priorities, transmits a command message to the designated slave node, and updates its memory with a response message from the designated node. If the command message is received, each designated slave node updates its memory with data contained in the command message and returns a response message to the master node. If the command message is not received, each slave node, acting as a temporary master node, designates a different one of the other slave nodes in descending order, transmits a command message to each designated node, and updates its memory with a response message therefrom. Each temporary master node repeats the process until it receives a command message from another temporary master node having a priority higher than the priority of the sending node.

REFERENCES:
patent: 4737957 (1988-04-01), Nohmi et al.
patent: 4975914 (1990-12-01), Ashton et al.
patent: 5029159 (1991-07-01), Dolov
patent: 5321812 (1994-06-01), Benedict et al.

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