Title :
Reliable and Scalable DHT-Based SIP Server Farm
Author :
Li, Lichun ; Zhang, Chunhong ; Wang, Yao ; Ji, Yang
Author_Institution :
Telecommun. Eng. Dept., Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
Session initiation protocol has been widely deployed to enable multimedia communication. To guarantee service reliability and scalability, service providers usually deploy SIP server farms. In this paper, we present a reliable and scalable DHT-based SIP server farm. In the proposed server farm, one-hop DHT is adopted and a new SIP event package called SIEP (server information event package) is designed. In addition, a novel load sharing and failover scheme is designed based on one-hop DHT and SIEP. Compared with multi-hop DHT, one-hop DHT produces less overhead in DHT-based SIP server farm. Using SIEP, DHT routing hop number can be further reduced to zero in registration and intra-domain call setup process. Performance analysis shows the whole message overhead (overhead caused by SIP and DHT messages) can further reduce about 25% by applying SIEP. It´s proven that the proposed load sharing and failover scheme is effective, scalable and reliable even in dynamic environments. What´s more, it doesn´t increase the deployment and maintenance cost.
Keywords :
cryptographic protocols; routing protocols; signalling protocols; telecommunication network reliability; DHT-based SIP server farm; SIP server farms; failover scheme; load sharing; maintenance cost; multimedia communication; server information event package; service providers; service reliability; session initiation protocol; Costs; Maintenance; Multimedia communication; Network servers; Packaging; Performance analysis; Protocols; Reliability engineering; Routing; Scalability;
Conference_Titel :
Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Conference_Location :
New Orleans, LO
Print_ISBN :
978-1-4244-2324-8
DOI :
10.1109/GLOCOM.2008.ECP.341
