Impact of Out-of-Sequence Processing on the Performance of Data Transmission

Christophe Diot 1 François Gagnon
1 RODEO - High Speed Networks, Open Networks
CRISAM - Inria Sophia Antipolis - Méditerranée
Abstract : Application Level Framing (ALF) was proposed by Clark and Tennenhouse as an important concept for developing high performance applications. ALF relies in part on the ability of applications and protocols to process packets independently one from the other. Thus, performance gains one might expect from the use of ALF are clearly related to performance gains one might expect from applications that can handle and process packets received out-of-sequence, as compared to applicatiojn that require in-order delivery (FTP, TELNET, etc.). In this paper, we examine how the ability to process out-of-sequence packets impacts the efficiency of data transmission. We consider both the impact of application parameters such as the time to process a packet by the application, as well as transmission parameters such as transmission delay, loss rate and flow and congestion control characteristics. The performance measure of interest are total latency, buffer requirements, and jitter. We show, using experimental and simulation results, that out-of-sequence processing is beneficial only for very limited ranges of transmission delays and application processing time. We discuss the impact of this on the architecture of communication systems dedicated to distributed multimedia applications.
Type de document :
RR-3216, INRIA. 1997
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Soumis le : mercredi 24 mai 2006 - 12:56:45
Dernière modification le : samedi 27 janvier 2018 - 01:31:31
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  • HAL Id : inria-00073473, version 1



Christophe Diot, François Gagnon. Impact of Out-of-Sequence Processing on the Performance of Data Transmission. RR-3216, INRIA. 1997. 〈inria-00073473〉



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