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Published in: Photonic Network Communications 3/2020

10-07-2020 | Original Paper

Hybrid and optical packet switching supporting different service classes in data center network

Authors: Artur Minakhmetov, Cédric Ware, Luigi Iannone

Published in: Photonic Network Communications | Issue 3/2020

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Abstract

Optical packet switching is a prominent technology proposing not only a reduction in the energy consumption by the elimination of numerous optical–electrical–optical conversions in electronic switches, but also a decrease in network latencies due to the cut-through nature of packet transmission. However, it is adversely affected by packet contention, preventing its deployment. Solutions have been proposed to tackle the problem: addition of shared electronic buffers to optical switches (then called hybrid opto-electronic switches), customization of TCP protocols, and use of different service classes of packets with distinct switching criteria. In the context of data center networks, we investigate a combination of said solutions and show that the hybrid switch, compared to the optical switch, boosts the performance of the data center network. Furthermore, we show that introducing a “Reliable” service class improves performance for this class not only in the case of the hybrid switch, but also brings the optical switch to performance levels comparable to that of the hybrid switch, all the while keeping other classes’ performance on the same level.
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Metadata
Title
Hybrid and optical packet switching supporting different service classes in data center network
Authors
Artur Minakhmetov
Cédric Ware
Luigi Iannone
Publication date
10-07-2020
Publisher
Springer US
Published in
Photonic Network Communications / Issue 3/2020
Print ISSN: 1387-974X
Electronic ISSN: 1572-8188
DOI
https://doi.org/10.1007/s11107-020-00894-9