A Survey on TCP-Friendly Congestion Control (extended version)

Widmer, Jörg ; Denda, Robert ; Mauve, Martin

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URL:	https://ub-madoc.bib.uni-mannheim.de/750
URN:	urn:nbn:de:bsz:180-madoc-7503
Document Type:	Working paper
Year of publication:	2001
The title of a journal, publication series:	Technical Reports
Volume:	01-002
Place of publication:	Mannheim
Publication language:	English
Institution:	School of Business Informatics and Mathematics > Sonstige - Fakultät für Wirtschaftsinformatik und Wirtschaftsmathematik
MADOC publication series:	Veröffentlichungen der Fakultät für Mathematik und Informatik > Institut für Informatik > Technical Reports
Subject:	004 Computer science, internet
Subject headings (SWD):	Multicastingverfahren , Überlastkontrolle , TCP/IP , Fairness <Informatik>
Keywords (English):	congestion control , TCP-friendliness , TCP , multicast , fairness
Abstract:	New trends in communication, in particular the deployment of multicast and real-time audio/video streaming applications, are likely to increase the percentage of non-TCP traffic in the Internet. These applications rarely perform congestion control in a TCP-friendly manner, i.e., they do not share the available bandwidth fairly with applications built on TCP, such as web browsers, FTP- or email-clients. The Internet community strongly fears that the current evolution could lead to a congestion collapse and starvation of TCP traffic. For this reason, TCP-friendly protocols are being developed that behave fairly with respect to co-existent TCP flows. In this article, we present a survey of current approaches to TCP-friendliness and discuss their characteristics. Both unicast and multicast congestion control protocols are examined, and an evaluation of the different approaches is presented.