On operational availability of a large software-based telecommunications system

Author

Cramp, Randy ; Vouk, Mladen A. ; Jones, Wendell

Author_Institution

Dept. of Comput. Sci., North Carolina State Univ., Raleigh, NC, USA

fYear

1992

fDate

7-10 Oct 1992

Firstpage

358

Lastpage

366

Abstract

Modern telecommunications systems are dependent on software for their successful operation. In many cases, the software operates on an established hardware platform and subsequent releases of the system offer primarily in the software component. Because of the increased dependence of the society on advanced telecommunications systems, the reliability and availability of network switching elements are very important. Empirical information on the operational unavailability due to total system outages of a large software-based telecommunications system is presented and discussed. About 50% of these outages are reported as being caused by software. The data is used to show that the unavailability of this system can be described well using a classical two-state availability model

Keywords

software reliability; telecommunications computing; advanced telecommunications systems; classical two-state availability model; established hardware platform; large software-based telecommunications system; network switching elements; operational unavailability; reliability; total system outages; Availability; Computer science; Hardware; Humans; Modems; Predictive models; Protection; Software systems; Telecommunication network reliability; Telecommunication switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Software Reliability Engineering, 1992. Proceedings., Third International Symposium on

Conference_Location

Research Triangle Park, NC

Print_ISBN

0-8186-2975-4

Type

conf

DOI

10.1109/ISSRE.1992.285907

Filename

285907