XCP-based transmission control mechanism for optical packet switched networks with very small optical RAM

According to a famous rule-of-thumb, buffer size of each output link of a router should be set to bandwidth-delay product of the network, in order to achieve high utilization with TCP flows. However, ultra high speed of optical networks makes it very hard to satisfy this rule-of-thumb, especially wi...

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Bibliographic Details
Published inPhotonic network communications Vol. 18; no. 2; pp. 237 - 243
Main Authors Alparslan, Onur, Arakawa, Shin’ichi, Murata, Masayuki
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.10.2009
Subjects
Characterization and Evaluation of Materials
Computer Communication Networks
Computer Science
Electrical Engineering
TCP
OPS
Small buffer
Optical RAM
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Summary:According to a famous rule-of-thumb, buffer size of each output link of a router should be set to bandwidth-delay product of the network, in order to achieve high utilization with TCP flows. However, ultra high speed of optical networks makes it very hard to satisfy this rule-of-thumb, especially with limited choices of buffering in the optical domain, because optical RAM is under research and it is not expected to have a large capacity, soon. In this article, we evaluate the performance of our explicit congestion control protocol-based architecture designed for very small Optical RAM-buffered optical packet switched wavelength division multiplexing networks with pacing at edge nodes in order to decrease the required buffer size at core nodes. By using a mesh topology and applying TCP traffic, we evaluate the optical buffer size requirements of this architecture and compare with a common proposal in the literature.
ISSN:1387-974X
1572-8188
DOI:10.1007/s11107-009-0187-9