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Title |
The Impact of Burst Switching on TCP Performance |
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Author |
JungYul Choi, Hai Le Vu, Craig Cameron, Moshe Zukerman, Minho Kang |
| Citation |
Vol. 6 No. 11 pp. 146-151 |
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Abstract |
Optical burst switching (OBS) has brought a new switching paradigm for transparent all optical networks by getting rid of buffers at core nodes. Main features of OBS are burst assembly and delayed reservation. In an OBS network, input traffic is aggregated to generate a big sized data burst at an ingress edge node for achieving efficient bandwidth utilization. Such traffic aggregation process however may affect TCP performance because a single burst contains several TCP segments from different TCP sources. Even a single burst loss can affect TCP congestion control mechanism and many TCP sources then attempt to reduce down its send rate to avoid network congestion. This paper therefore studies the relationship between OBS performance and TCP performance in order to efficiently operate OBS networks. Fixed point input load and loss is obtained from the linkage between OBS loss model and TCP performance modeling. |
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Keywords |
Transmission Control Protocol (TCP), Optical Burst Switching (OBS), Burst Assembly Process, Fixed point |
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