Title :
Efficient failover and Load Balancing for dependable SIP proxy servers
Author :
Cheng, Yun-Jung ; Wang, Kuochen ; Jan, Rong-Hong ; Chen, Chien ; Huang, Chia-Yuan
Author_Institution :
Dept. of Comput. Sci., Nat. Chiao Tung Univ., Hsinchu
Abstract :
In this paper, we designed and implemented a dependable SIP-based clustered architecture for VoIP and multimedia applications, and also proposed an efficient OpenAIS-based SIP load balancing strategy (OSLB) that can balance proxy serverspsila load and achieve fast failover by reducing the number of failed calls when one of the dispatchers or one of the SIP proxy servers crashes. Experimental results show that our OSLB is comparable to an existing work, SIP load balancer, in terms of load balance metric (1.05 vs. 1.04). However, our OSLB reduces the number of failed calls by 86% when a proxy server failed compared to the SIP load balancer. This work, which is part of an EPON project, has been realized in an industry standard ATCA-based platform to provide high availability carrier-grade services, and is currently under a field trial in an ISP.
Keywords :
Internet telephony; signalling protocols; telecommunication services; OpenAIS-based SIP load balancing strategy; SIP proxy servers; VoIP; failover-load balancing; multimedia applications; Availability; Communication industry; Computer architecture; Computer industry; Computer science; Load management; Network servers; Protocols; Web and internet services; Web server; Dependable; SIP (session initiation protocol); SIP proxy server; dispatcher; load balancing;
Conference_Titel :
Computers and Communications, 2008. ISCC 2008. IEEE Symposium on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-2702-4
Electronic_ISBN :
1530-1346
DOI :
10.1109/ISCC.2008.4625642