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Keeping order: determining the effect of TCP packet reordering

Arthur, C.M. and Harle, D.A. and Lehane, A. (2007) Keeping order: determining the effect of TCP packet reordering. In: Third International Conference on Networking and Services, 2007-06-19 - 2007-06-25, Athens.

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Abstract

Packet reordering over TCP/IP networks is a phenomenon which is becoming increasingly important in network performance analysis. Reordering is a consequence of network equipment manufacturers increasing switch and link level parallelism on the Internet, seeking performance, reliability and economical improvements. This paper presents a methodology for simulating and measuring TCP reordering, providing an insight into the behaviours of the congestion and retransmission algorithms, and demonstrating that reordering has a measurable effect on performance. These measurements illustrate that there is a maximum reordering delay threshold that should be applied to packets, regardless of percentage reordering, below which reordering has negligible effects. Determination of this threshold, on a specific path, is key to ensuring that a specific switch or router does not introduce reordering to such an extent that it causes unnecessary retransmissions and an associated reduction in throughput.

Item type: Conference or Workshop Item (Paper)
ID code: 36552
Keywords: TCP packet reordering , TCP/IP networks , retransmission algorithm, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 22 Dec 2011 14:55
    Last modified: 17 Jul 2013 15:35
    URI: http://strathprints.strath.ac.uk/id/eprint/36552

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