Cost-effective congestion-aware load balancing for datacenters

Bo Ting Chiang, Kuo-Chen Wang

研究成果: Conference contribution同行評審

3 引文 斯高帕斯(Scopus)

摘要

Most existing datacenters still use Equal-Cost Multi-Path (ECMP) to achieve network load balancing. But such a stateless load balancing mechanism is not able to react adaptively when network congestion occurs. It will cause datacenters unable to make good use of network resources under the unbalanced network state. The main reason most datacenters still using ECMP is that the cost of realizing the state-of-art load balancing technologies is too high since all switches in datacenters need to be replaced with programmable switches, such as P4 switches. In this paper, we propose a cost-effective congestion-aware load balancing (CCLB) scheme that only needs to replace a portion of switches with programmable switches to achieve congestion-aware load balancing. CCLB makes good use of Explicit Congestion Notification (ECN) in the IP layer to be aware of network congestion and uses flowlet switching that slices large flows into small sub-flows to achieve load balancing. Experiment results show that the average flow completion time of the proposed CCLB is 27% shorter than that of ECMP in large flows. Compared to a classical congestion-aware mechanism, HULA, the average flow completion time of the proposed CCLB is slightly longer, but our switch replacement cost is much lower than HULA's.

原文English
主出版物標題ICEIC 2019 - International Conference on Electronics, Information, and Communication
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9788995004449
DOIs
出版狀態Published - 3 5月 2019
事件18th International Conference on Electronics, Information, and Communication, ICEIC 2019 - Auckland, New Zealand
持續時間: 22 1月 201925 1月 2019

出版系列

名字ICEIC 2019 - International Conference on Electronics, Information, and Communication

Conference

Conference18th International Conference on Electronics, Information, and Communication, ICEIC 2019
國家/地區New Zealand
城市Auckland
期間22/01/1925/01/19

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