Estimating the effect of Wavelength Selective Switch latency on optical flow switching performance

Ali Shakeri, Xue Wang, Miguel Razo, Andrea Fumagalli, Miquel Garrich Alabarce, Eiji Oki, Naoaki Yamanaka

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

Optical networks are well suited to support massive data exchanges between data centers. Elephant traffic flows can be routed over provisioned and dedicated lightpaths (optical flows) while other (mice) flows, which are routed by electronic switches, are unaffected. In some solutions, Wavelength-Selective Switches (WSSs) are employed in the optical nodes to individually route the lightpath towards its destination. WSSs take time to be switched and delay the lightpath setup time. In this paper, the authors compare three service policies for WSS devices aiming to reduce the lightpath setup and tear down times. The conventional service policy assumes that each setup (tear down) request is handled individually. Two other service policies assume that groups of setup (tear down) requests are handled together by the WSS. These policies are implemented in a discrete event simulator, which is used to estimate the end-to-end lightpath setup and tear down time across an arbitrary mesh network. Simulation results show that group service policies outperform the conventional policy at high loads. The grouping policies are useful to reduce the lightpath setup time especially in the presence of lightpaths that are frequently set up and have relatively short holding time (short duration of elephant-optical flows).

本文言語English
ホスト出版物のタイトルHPSR 2017 - 2017 IEEE 18th International Conference on High Performance Switching and Routing
出版社IEEE Computer Society
ISBN(電子版)9781509028399
DOI
出版ステータスPublished - 2017 7 5
イベント18th IEEE International Conference on High Performance Switching and Routing, HPSR 2017 - Campinas, Brazil
継続期間: 2017 6 182017 6 21

出版物シリーズ

名前IEEE International Conference on High Performance Switching and Routing, HPSR
2017-June
ISSN(印刷版)2325-5595
ISSN(電子版)2325-5609

Other

Other18th IEEE International Conference on High Performance Switching and Routing, HPSR 2017
国/地域Brazil
CityCampinas
Period17/6/1817/6/21

ASJC Scopus subject areas

  • ハードウェアとアーキテクチャ
  • 電子工学および電気工学

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