1995-09-29
1999-06-15
Lall, Parshotam S.
G06F 1516
Patent
active
059130350
ABSTRACT:
A computer-implemented method and apparatus for determining the availability of a computer network includes a computer program which receives outage signals that are representative of outages of network devices and network device interfaces, in the event that a particular device has more than one network interface. Also, the program receives online signals on a periodic basis and based on the online signals, determines the average number of online interface-minutes during a subset of a preselected period. Then, the number of outage minutes is divided by the average number of online interface-minutes and substracted from one, to generate an availability signal which can be output as an indication of network availability during the preselected period.
REFERENCES:
patent: 5513321 (1996-04-01), Katori
G. M. Chaudhry; "Performance and Dependability of Gracefully-Degradable Multiprocessor Systems"; Circuits and Systems, 1991 IEEE Midwest Symposium; pp. 962-965, 1992.
Alan Wood; NonStop Availability in a Client/Server Environment; Mar. 1994; Technical Report 94.1; Tandem Computers; Part No. 106404.
Wood et al.; An Analysis of Client/Server Outage Data; Apr. 26, 1995; International Computer Performance and Dependability Symposium; pp. 295-304.
Burns et al.; FASTAR Operations in the Real AT&T Transport Network; Dec. 2, 1993; GOLOBECOM '93: IEEE Global Telecommunications Conference; pp. 229-233.
Baker John D.
Hardy Michael B.
Waters Chris R.
Chrysler Corporation
Coulter Kenneth R.
Lall Parshotam S.
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