Title :
The Impact of SCTP on SIP Server Scalability and Performance
Author :
Ono, Kumiko ; Schulzrinne, Henning
Author_Institution :
Dept. of Comput. Sci., Columbia Univ., New York, NY
Abstract :
The stream control transmission protocol (SCTP) is a relatively recent transport protocol, offering features beyond TCP. Although SCTP is an alternative transport protocol for the session initiation protocol (SIP), we do not know how SCTP features influence SIP server scalability and performance. To estimate this, we measured the scalability and performance of two servers, an echo server and a simplified SIP server on Linux, for both SCTP and TCP. Our measurements found that using SCTP does not significantly affect data transfer latency. However, the number of sustainable associations drops to 17-21% or to 50% of the TCP value if we adjust the acceptable gap size of packet reordering.
Keywords :
network servers; signalling protocols; transport protocols; Linux; SCTP; SIP server performance; SIP server scalability; TCP; echo server; packet reordering; session initiation protocol; stream control transmission protocol; transport protocol; Computer science; Delay; Internet telephony; Linux; Network servers; Scalability; Sockets; TCPIP; Transport protocols; Web server;
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.278
