Supervisory system for network equipments

Details Supervisory system for network equipments Supervisory system for network equipments

1993-03-11

1996-04-30

Kriess, Kevin A.

Boots, shoes, and leggings

3642683, 3642686, 3642689, 3642692, 3642853, 364DIG1, 371 201, G06F 1120

Patent

active

055133410

ABSTRACT:
A supervisory system for supervising equipments communicating with each other via communication lines in a network, the supervisory system includes a plurality of supervisory devices, each of which devices is used for supervising a plurality of equipments in the network; and a controller for controlling the plurality of supervisory devices so that one of the plurality of supervisory devices performs a supervising operation for the plurality of equipments in the network. The controller includes a determination unit for determining whether or not each of the plurality of supervisory devices is operating normally; an instruction unit for supplying either a first instruction or a second instruction to each of the plurality of supervisory devices based on a determination result obtained by the determination unit, the first instruction indicating that a supervisory device to which the first instruction is supplied is to be active in the supervisory operation, the second instruction indicating that a supervisory device to which the second instruction is supplied is to be inactive in the supervisory operation; and a selecting unit for selecting from the plurality of supervisory devices a supervisory device to which the first instruction is supplied, so that the supervisory device selected by the selecting unit supervises the plurality of equipments in the network in accordance with the first instruction.

REFERENCES:
patent: 5121486 (1992-06-01), Kurihara et al.
patent: 5157663 (1992-10-01), Major et al.
patent: 5247664 (1993-09-01), Thompson et al.
patent: 5343477 (1994-08-01), Yamada
patent: 5363503 (1994-11-01), Gleeson

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