Septama, Hery Dian and Ulvan, Ardian and Ulvan, Melvi (2015) High Available VoIP Server Failover Mechanism in Wide Area Network. TELKOMNIKA, 13 (2). pp. 739-744. ISSN 1693-6930


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Voice over Internet Protocol (VoIP) is Internet Protocol (IP) based technology for the next generation network. VoIP has been develoved to overcome future telephony demand. However, some issues i.e. how to provide the services availability and reliability equally to circuit based telephony, need to overcome before VoIP replaced the circuit based telephony. Live migration in virtualization environment is used to provide high availability service, but the failover mechanism over Wide Area Network (WAN) need to be improved. In this paper, the ability of virtualization failover mechanism over WAN and voice quality of VoIP service in High Availability system is studied and examined. Both objective analysis by using quality of services (QoS) attributes is conducted as well as the subjective analysis using Mean Opinion Score (MOS). The work utilizes Xen® Hypervisor with modified Remus extensions to provide the High Availability environment with GRE tunnelling and newtwork virtualization. Remus approach using checkpoint based is deployed to copy the primary server to the backup server. A range of 40ms – 900ms has been applied as time interval of checkpoint. The results show that the the failover downtime is 1.4 s and mean jitter is 9,98 ms, packet loss 3,12% and MOS 3.61 for Remus 400ms checkpoint. MOS with different checkpoint time interval is also presented

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Fakultas Teknik (FT) > Prodi Teknik Informatika
Depositing User: HERY DIAN
Date Deposited: 31 May 2017 08:26
Last Modified: 31 May 2017 08:26

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