11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness

Research Article

An Effective Failure Recovery Mechanism for SIP/IMS Services

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  • @INPROCEEDINGS{10.4108/eai.19-8-2015.2261247,
        author={Whai-En Chen and Li-Yao Tseng and Chien-Lung Chu},
        title={An Effective Failure Recovery Mechanism for SIP/IMS Services},
        proceedings={11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness},
        publisher={IEEE},
        proceedings_a={QSHINE},
        year={2015},
        month={9},
        keywords={ims voip sip write-back write-through},
        doi={10.4108/eai.19-8-2015.2261247}
    }
    
  • Whai-En Chen
    Li-Yao Tseng
    Chien-Lung Chu
    Year: 2015
    An Effective Failure Recovery Mechanism for SIP/IMS Services
    QSHINE
    IEEE
    DOI: 10.4108/eai.19-8-2015.2261247
Whai-En Chen1,*, Li-Yao Tseng1, Chien-Lung Chu1
  • 1: National Ilan University
*Contact email: wechen@niu.edu.tw

Abstract

There are many challenges to provide telecommunication services. The reliability is one of the most important challenges. Telecommunications systems require 99.999% reliability, which means that system only tolerant of downtime about 5 minutes per year. To achieve such high reliability, multiple servers and a shared database are deployed for a Session Initiation Protocol (SIP)/ IP Multimedia Subsystem (IMS) service. This paper investigates the effects of different database (DB) access mechanisms such as Write-Through (WT), Write-Back (WB), and the database-only (DB-only) mechanisms. Then this paper proposes an enhancement for the WB mechanism to improve the successful call setup probability. The analytic models are derived to analyze the performance of the proposed mechanism.