Impact of segments aggregation on TCP Reno flows in optical burst switching networks

Detti, Andrea; Listanti, Marco

doi:10.1109/infcom.2002.1019434

Cited by 129 publications

(128 citation statements)

References 23 publications

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“…In [20] the authors examined the effect of the burst assembly algorithms at OBS ingress nodes on the performance of TCP Reno. In this paper, TCP flows are classified into three categories: fast, medium, and slow.…”

Section: Introductionmentioning

confidence: 99%

A Novel Congestion Detection Scheme in TCP Over OBS Networks

Shihada

Zhang

2009

J. Lightwave Technol.

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Section: Introductionmentioning

confidence: 99%

A Novel Congestion Detection Scheme in TCP Over OBS Networks

Shihada

Zhang

2009

J. Lightwave Technol.

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“…Performance of TCP traffic in OBS networks has been recently addressed in several studies [2,[6][7][8][9][10][11][12][13]. TCP throughput degradation resulting from the additional burst assembly delay, called the delay penalty (DP) [6], increases as the assembly time increases [2,6,8,9].…”

Section: Introductionmentioning

confidence: 99%

“…An important consequence of the burst assembly is the combined loss or combined successful delivery of consecutive packets in a burst belonging to the same TCP flow. The improvement in TCP rate as a result of this correlation is called the correlation gain, which increases with the average number of packets in a burst belonging to the same TCP flow [10]. This improvement is explained by the increased time elapsing between two loss events, and it is referred to as the delayed first loss (DFL) gain [6].…”

Section: Introductionmentioning

confidence: 99%

Using multiple per egress burstifiers for enhanced TCP performance in OBS networks

Gurel

Karasan

2008

Photon Netw Commun

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Burst assembly mechanism is one of the fundamental factors that determine the performance of an optical burst switching (OBS) network. In this paper, we investigate the influence of the number of burstifiers on TCP performance for an OBS network. The goodput of TCP flows between an ingress node and an egress node traveling through an optical network is studied as the number of assembly buffers per destination varies. First, the burst-length independent losses resulting from the contention in the core OBS network using a non-void-filling burst scheduling algorithm, e.g., Horizon, are studied. Then, burst-length dependent losses arising as a result of void-filling scheduling algorithms, e.g., LAUC-VF, are studied for two different TCP flow models: FTP-type long-lived flows and variable size short-lived flows. Simulation results show that for both types of scheduling algorithms, both types of TCP flow models, and different TCP versions (Reno, Newreno and Sack), TCP goodput increases as the number of burst assemblers per egress node is increased for an OBS network employing timer-based assembly algorithm. The improvement from one burstifier to moderate number of burst assemblers is significant (15-50% depending on the burst loss probability, perhop processing delay, and the TCP version), but the goodput difference between moderate number of buffers and per-flow aggregation is relatively small, implying that an OBS edge A preliminary version of this paper was presented at the Sixth International Workshop on Optical Burst/Packet Switching (WOBS), Oct. 2006.G. Gurel · E. Karasan (B) Department of Electrical and Electronics Engineering, Bilkent University, 06800 Ankara, Turkey e-mail: ezhan@ee.bilkent.edu.tr G. Gurel e-mail: guray@ee.bilkent.edu.tr switch should use moderate number of assembly buffers per destination for enhanced TCP performance without substantially increasing the hardware complexity.

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“…Some works on this issue recently appeared mainly focusing on the effects of aggregation of IP packets into longer optical bursts or packets [2,3]. In general not many results are available regarding the effects that congestion, and the consequent congestion resolution mechanisms, in the OPS network may have on the behavior of transport protocols such as TCP.…”

Section: Introductionmentioning

confidence: 99%

A Framework for the Analysis of Delay Jitter in Optical Packet Switched Networks

Callegati

Cerroni

Muretto

et al. 2005

Optical Networks and Technologies

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Abstract:Out of order delivery and/or delay jitter are typical phenomena occurring in networks adopting a packet transfer mode and may have a relevant impact on the behavior of higher layer protocols. In this paper an original framework is proposed to analyze these phenomena in optical packet-switched networks that employ the wavelength and the time dimensions to solve congestion. This framework is the first step toward a deeper understanding of the interaction between transport networks and higher layers behaviors.

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Impact of segments aggregation on TCP Reno flows in optical burst switching networks

Cited by 129 publications

References 23 publications

A Novel Congestion Detection Scheme in TCP Over OBS Networks

A Novel Congestion Detection Scheme in TCP Over OBS Networks

Using multiple per egress burstifiers for enhanced TCP performance in OBS networks

A Framework for the Analysis of Delay Jitter in Optical Packet Switched Networks

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