Telecommunications network operations systems: experiences in software reliability engineering

Describes our practical experiences in applying software reliability engineering (SRE) technology to telecommunications network operations systems. These are real-time, high-availability systems used to provision, maintain and restore AT&T's backbone telecommunications transport network. In...

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Bibliographic Details
Main Authors: Kropfl, D., Ehrlich, W.
Format: Conference Proceeding
Language:English
Subjects:
Maintenance engineering
Production systems
Real time systems
Reliability engineering
Software reliability
Spine
Stability
Stress
Telecommunication network reliability
Testing
Online Access:Request full text
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Summary:Describes our practical experiences in applying software reliability engineering (SRE) technology to telecommunications network operations systems. These are real-time, high-availability systems used to provision, maintain and restore AT&T's backbone telecommunications transport network. In this paper, we describe how we used SRE to ensure the quality and high reliability of three such systems prior to production. Key steps in applying SRE are: deriving an operational profile, developing a simulator test environment, and executing load, stress and stability tests. To reduce test intervals and increase system reliability, we apply accelerated testing and experimental design. In addition, our SRE program also incorporates customer-focused techniques such as operational scenario testing.
ISSN:1071-9458
2332-6549
DOI:10.1109/ISSRE.1995.497676