Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2005-02-22
2005-02-22
Le, Dieu-Minh (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C709S224000
Reexamination Certificate
active
06859895
ABSTRACT:
According to the life-and-death monitoring method of monitoring, by any of a plurality of host computers connected to a common network, a life-or-death state of other host computer, a life-and-death monitoring packet including a table having a management order of a host computer to be managed, and an address and a check flag of the host computer is transmitted from a management host computer to any of the host computers to be managed, the host computer to be managed which has received the life-and-death monitoring packet checks a check flag of the table in which its own address is registered, and the host computer to be managed which has completed the checking transmits the life-and-death monitoring packet to a subsequent host computer to be managed according to the management order of the table.
REFERENCES:
patent: 5351242 (1994-09-01), Kramarczyk et al.
patent: 5701484 (1997-12-01), Artsy
patent: 5931916 (1999-08-01), Barker et al.
patent: 6343320 (2002-01-01), Fairchild et al.
patent: 6574197 (2003-06-01), Kanamaru et al.
Le Dieu-Minh
NEC Corporation
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