QoS-aware multipathing in datacenters using effective bandwidth estimation and SDN

Runxin Wang, Simone Mangiante, Alan Davy, Lei Shi, Brendan Jennings

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

14 Citations (Scopus)

Abstract

Datacenter networks are commonly structured with hierarchical topologies in which multipaths are provided to create redundant paths between end-to-end servers. Without a dedicated flow control mechanism, different sizes of traffic flows are statically allocated to links without sensing the current link utilization, which can result in transient network congestion that impacts on the latency experienced by users of the hosted applications. Existing works aim to realize load balancing by efficiently scheduling flows based on their sizes and link utilization. However, many applications' performance is bounded with specific QoS targets, so load balancing may not directly address their QoS requirements. In this paper, we present a latency-aware flow scheduling system that schedules flows based on a tenant application's QoS target and empirical estimations of the effective bandwidth required to meet these QoS targets. The approach seeks to ensure that, following a network-aware placement of VMs hosting application components, the latency associated with communications between these VMs is controlled even as the inter-VM traffic patterns change, or as the background traffic associated with other applications changes. We describe a prototype implementation of the approach that extends our MAPLE network-aware VM placement system. Our experiments in an emulated datacenter indicate that our scheduling approach leads to fewer QoS violations compared to ECMP.

Original languageEnglish
Title of host publication2016 12th International Conference on Network and Service Management, CNSM 2016 and Workshops, 3rd International Workshop on Management of SDN and NFV, ManSDN/NFV 2016, and International Workshop on Green ICT and Smart Networking, GISN 2016
EditorsShannon Keith-Marsoun, Carlos Raniery Paula dos Santos, Noura Limam, Mohamed Cheriet, Mohamed Faten Zhani, Olivier Festor
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages342-347
Number of pages6
ISBN (Electronic)9783901882852
DOIs
Publication statusPublished - 13 Jan 2017
Event12th International Conference on Network and Service Management, CNSM 2016 and Workshops, 3rd International Workshop on Management of SDN and NFV, ManSDN/NFV 2016 and International Workshop on Green ICT and Smart Networking, GISN 2016 - Montreal, Canada
Duration: 31 Oct 201604 Nov 2016

Publication series

Name2016 12th International Conference on Network and Service Management, CNSM 2016 and Workshops, 3rd International Workshop on Management of SDN and NFV, ManSDN/NFV 2016, and International Workshop on Green ICT and Smart Networking, GISN 2016

Conference

Conference12th International Conference on Network and Service Management, CNSM 2016 and Workshops, 3rd International Workshop on Management of SDN and NFV, ManSDN/NFV 2016 and International Workshop on Green ICT and Smart Networking, GISN 2016
Country/TerritoryCanada
CityMontreal
Period31/10/201604/11/2016

Fingerprint

Dive into the research topics of 'QoS-aware multipathing in datacenters using effective bandwidth estimation and SDN'. Together they form a unique fingerprint.

Cite this