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AuthorWang, Fu
AuthorYao, Haipeng
AuthorZhang, Qi
AuthorWang, Jingjing
AuthorGao, Ran
AuthorGuo, Dong
AuthorGuizani, Mohsen
Available date2022-10-03T20:55:22Z
Publication Date2022-06-01
Publication NameIEEE Transactions on Network and Service Management
Identifierhttp://dx.doi.org/10.1109/TNSM.2021.3125307
CitationWang, F., Yao, H., Zhang, Q., Wang, J., Gao, R., Guo, D., & Guizani, M. (2021). Dynamic distributed multi-path aided load balancing for optical data center networks. IEEE Transactions on Network and Service Management.‏
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85118621041&origin=inward
URIhttp://hdl.handle.net/10576/34765
AbstractBenefiting from dense connections in data center networks (DCNs), load balancing algorithms are capable of steering traffic into multiple paths for the sake of preventing traffic congestion. However, given each path's time-varying and asymmetrical traffic state, this may also lead to worse congestion when some paths are overutilised. Especially in the two-tier hybrid optical/electrical DCNs (Hoe-DCNs), the port contentions and large-grained optical packets of the fast optical switch (FOS) require the top-of-rack (TOR) switch to have microsecond-level load balancing capability for microburst traffic. This paper establishes a leaf-spine Hoe-DCN model to illustrate the principal characteristic of dynamic load balancing in TOR switches for the first time. Moreover, we propose the dynamic distributed multi-path (DDMP) load balancing algorithm that relies on dynamic hashing computing for network flow distribution in DCNs, which dynamically adjusts traffic flow distribution at microsecond level according to the inverse ratio of the buffer occupancy. The simulation results show that our proposed algorithm reduces the TOR-to-TOR latency by 15.88% and decreases the packet loss by 22.06% compared to conventional algorithms under regular load conditions, which effectively improves the overall performance of the Hoe-DCNs. Moreover, our proposed algorithm prevents more than 90% packet loss under low load conditions.
SponsorFinancial support came from National Natural Science Foundation of China for Excellent Young Scholars (62022016), China Postdoctoral Science Foundation (2021M690411) and Open Fund of IPOC (BUPT) (IPOC2020A006).
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
SubjectData center network
Load balance
Multi-path routing
Optical switches
TitleDynamic Distributed Multi-Path Aided Load Balancing for Optical Data Center Networks
TypeArticle
Pagination991-1005
Issue Number2
Volume Number19
dc.accessType Abstract Only


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