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

fYear

2008

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE

Conference_Location

New Orleans, LO

ISSN

1930-529X

Print_ISBN

978-1-4244-2324-8

Type

conf

DOI

10.1109/GLOCOM.2008.ECP.278

Filename

4698053