Excavating
Patent
1991-03-06
1994-04-12
Beausoliel, Jr., Robert W.
Excavating
395575, 371 113, G06F 1100
Patent
active
053032438
ABSTRACT:
In a network system comprising first through N-th agents, each of which performs a management operation on a management object (N representing a predetermined natural number which is not less than two), an active manager for managing the first through the N-th agents, and a backup manager for managing the first through the N-th agents when a fault occurs in the active manager, the active manager includes a fault detecting unit for detecting the fault in the active manager to produce a fault detection signal. Supplied with the fault detection signal, the backup managing process delivers a name signal representative of a backup manager name assigned to the backup manager as an indicated name to the first through the N-th agents through backup transmitting/receiving unit and the circuit switching device. In each of the first through the N-th agents, an agent process stores, as a stored manager name, the indicated name in a memory unit on reception of the name signal.
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patent: 4751702 (1988-06-01), Beier et al.
patent: 4775976 (1988-10-01), Yokoyama
patent: 4879716 (1989-11-01), McNally et al.
patent: 5148433 (1992-09-01), Johnson et al.
Beausoliel, Jr. Robert W.
Hua Ly V.
NEC Corporation
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