DocumentCode :
3606248
Title :
Distributed FlowVisor: a distributed FlowVisor platform for quality of service aware cloud network virtualisation
Author :
Lingxia Liao ; Shami, Abdallah ; Leung, Victor C. M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of British Columbia, Vancouver, BC, Canada
Volume :
4
Issue :
5
fYear :
2015
Firstpage :
270
Lastpage :
277
Abstract :
Cloud-based virtual networking environments are required to provide fine-grained quality of service (QoS) control without sacrificing scalability. However, no single approach can currently achieve these two goals simultaneously. FlowVisor is a building block to virtualise networks with fine-grained QoS support; however, scalability issues caused by the OpenFlow protocol and the centralised control model are a major concern. This study introduces a distributed FlowVisor (DFVisor) platform to address these scalability issues. The proposed DFVisor uses a layered overlay mechanism to improve network addressing space and switch capacity. DFVisor uses a distributed synchronised two-level database system with a synchronisation mechanism to enable the centralised control functions in the current FlowVisor platform in distributed control modules within the virtual network controllers. Therefore it removes a single point of failure in the network and reduces the flow setup latency without sacrificing the centralised network configuration and management capabilities. More importantly, the proposed DFVisor platform enables an advanced push-based flow setup and statistics collection mechanism to address scalability issues caused by the current pull-based flow setup and statistics collection method. A DFVisor prototype and an evaluation of this distributed synchronised two-level database are presented, and key issues for future research are discussed.
Keywords :
cloud computing; computer network management; open systems; protocols; quality of service; synchronisation; virtualisation; DFVisor platform; OpenFlow protocol; advanced push-based flow setup and statistics collection mechanism; centralised control functions; centralised control model; centralised network configuration capabilities; centralised network management capabilities; cloud-based virtual networking environments; distributed FlowVisor platform; distributed control modules; distributed synchronised two-level database; distributed synchronised two-level database system; fine-grained QoS support; fine-grained quality of service control; flow setup latency; layered overlay mechanism; network addressing space; quality of service aware cloud network virtualisation; synchronisation mechanism; virtual network controllers;
fLanguage :
English
Journal_Title :
Networks, IET
Publisher :
iet
ISSN :
2047-4954
Type :
jour
DOI :
10.1049/iet-net.2014.0107
Filename :
7272188
Link To Document :
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