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Impact of Ethernet Multipath Routing on Data Center Network Consolidations

Dallal Belabed 1 Stefano Secci 1 Guy Pujolle 1 Deep Medhi 2 
1 Phare
LIP6 - Laboratoire d'Informatique de Paris 6
Abstract : —With the advent of network virtualization, data center networking is reaching a high level of management complexity. Indeed, interconnection networks in data center networks (DCN) are no longer just based on flat over-provisioned pipes, but are increasingly facing traffic engineering (TE) issues that commonly characterize long-haul provider networks. TE objectives, however, are opposite to energy efficiency (EE) objectives commonly chased by virtual machine (VM) consolidations. Moreover, the specific topologies of DCNs and the systematic use of multipath forwarding make the joint TE and VM consolidation optimization complex. The contribution of this paper is twofold. First, we propose a repeated matching heuristic for the DCN optimization problem with multipath capabilities, which also scales well for large topologies without discarding both TE and EE objectives. Second, we assess the impact of multipath forwarding on TE and EE goals. Extensive simulations show us that multipath forwarding is beneficial only when EE is not the primary goal in network-aware VM consolidations, and that it can be counterproductive when instead the EE is the primary goal of such optimizations.
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Submitted on : Thursday, February 26, 2015 - 4:12:38 PM
Last modification on : Sunday, June 26, 2022 - 9:46:31 AM
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Dallal Belabed, Stefano Secci, Guy Pujolle, Deep Medhi. Impact of Ethernet Multipath Routing on Data Center Network Consolidations. The 4th international workshop on Data Center Performance (DCPerf), The 34th International Conference on Distributed Computing Systems (ICDCS, Jun 2014, Madrid, Spain. pp.57-62, ⟨10.1109/ICDCSW.2014.10⟩. ⟨hal-01120818⟩



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