Proactively controlling round-trip time variation and packet drops using SmoothTCP-q

Elvis  Vieira; Michael  Bauer

3rd International ICST Conference on Quality of Service in Heterogeneous Wired/Wireless Networks

Research Article

Proactively controlling round-trip time variation and packet drops using SmoothTCP-q

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1145/1185373.1185423,
    author={Elvis  Vieira and Michael  Bauer},
    title={Proactively controlling round-trip time variation and packet drops using SmoothTCP-q},
    proceedings={3rd International ICST Conference on Quality of Service in Heterogeneous Wired/Wireless Networks},
    publisher={ACM},
    proceedings_a={QSHINE},
    year={2006},
    month={8},
    keywords={},
    doi={10.1145/1185373.1185423}
}

Elvis Vieira
Michael Bauer
Year: 2006
Proactively controlling round-trip time variation and packet drops using SmoothTCP-q
QSHINE
ACM
DOI: 10.1145/1185373.1185423

Elvis Vieira¹^,*, Michael Bauer¹^,*

1: Computer Science Department, The University of Western Ontario, London, Ontario - Canada.

*Contact email: elvis@csd.uwo.ca, bauer@csd.uwo.ca

Abstract

Packet drops are the primary means of signalling congestion in TCP. However, packet drops have a great impact on round-trip time (RTT) variation of TCP applications. A different and more proactive approach is used by SmoothTCP-q, where ICMP-SQ messages are sent directly to the sender every time a threshold is reached in the queue size of the router. In this mechanism, SmoothTCP-q tries to avoid packet drops since it is not necessary to overload the router queue to discover the network bandwidth as Standard TCP does. As a result, SmoothTCP-q generally presents better quality of service characteristics in terms of RTT variation and packet drops when compared to TCP. In this paper we describe SmoothTCP-q and illustrate its main characteristics related to this proactive property.

Published: 2006-08-09
Publisher: ACM

: http://dx.doi.org/10.1145/1185373.1185423