RSS: a relay-based schedule scheme for optical data center network
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The ever-increasing communication requirements have led to the introduction of optical circuit switch (OCS) to data center, which is capable of providing more flexible bandwidth allocation compared to the electrical packet switching. However, the challenge still arises due to non-negligible reconfiguration delay of commercially available MEMS-based optical circuit switching technology, even though it provides high bandwidth with low per-bit cost and power. Additionally, existing scheduling schemes amortize long switch delay by means of reconfiguring OCS every a few 100 s of milliseconds, not only causing the degradation of the latency performance, but also incurring the low utilization of optical links. In this paper, we propose an OCS-based scheduling scheme called relay-based schedule scheme (RSS), which can leverage idle optical paths to forward traffic from remote nodes only with straightforward software modifications on controller. We evaluate the performance of the proposed scheme via OMNET++ simulator, and the results demonstrate that our proposal delivers significant benefits, including reducing the average mice flow FCTs (flow complete time) by up to 80% and reducing the end-to-end packet delay by 50% compared to non-RSS schemes.
KeywordsData center networks Scheduling scheme Optical circuit switching
This work was supported in part by the National Science Foundation of China under Grant 61634004, the Fundamental Research Funds for the Central Universities under Grant Nos. JB190105 and JB180309, the Key Research and Development Plan of Shaanxi province under Grant 2017ZDCXL-GY-05-01, china postdoctoral science foundation No. 2018M633465.
- 6.Mellette, W.M., McGuinness, R., Roy, A., Forencirh A., Papen, G., Snoeren, A.C., Poter, G.: RotorNet: a scalable, low-complexity, optical datacenter network. In: Proceedings of ACM SIGCOMM (2017)Google Scholar
- 8.Ghobadi, M., Mahajan, R., Phanishayee, A., Devanur, N., Kulkarni, J., Ranade, G., Blanche, P.A., Rastegarfar, H., Glick, M., Kilper, D.: ProjecToR: agile reconfigurable data center interconnect. In: Proceedings of ACM SIGCOMM (2016)Google Scholar
- 9.Muhammad, I., Martin, C., Pascal, L., Kostas, K.: Performance evaluation of hybrid optical switch architecture for data center networks. Opt. Switch. Network. 21(C), 1–15 (2016)Google Scholar
- 13.Liu, H., Lu, F., Forencich, A., et al.: Circuit switching under the radar with reactor. In: Usenix Conference on Networked Systems Design & Implementation. USENIX Association (2014)Google Scholar
- 15.Liu, H., Mukerjee, M.K., Li, C., et al.: Scheduling techniques for hybrid circuit/packet networks. In: ACM Conference. ACM (2015)Google Scholar
- 16.Wang, C.H., Javidi, T., Porter, G.: End-to-end scheduling for all-optical data centers. In: Computer Communications. IEEE (2015)Google Scholar
- 19.Porter, G., Strong, R., Farrington, N., et al.: Integrating microsecond circuit switching into the data center. In: Proceedings of the ACM SIGCOMM 2013 Conference on SIGCOMM. ACM (2013)Google Scholar
- 20.Kandula, S., Sengupta, S., Greenberg, A.G., et al.: The nature of data center traffic: measurements and analysis. In: ACM SIGCOMM Conference on Internet Measurement Conference. ACM (2009)Google Scholar