Paper Info
Title
Maintaining an Up-to-date Global Network View in SDN.
Abstract
Maintaining an up-to-date global network view is of crucial importance for intelligent SDN applications that need to act autonomously. In this paper, we focus on two key factors that can affect the controllersu0027 global network view and subsequently impact the application performance. Particularly we examine: (1) network state collection, and (2) network state distribution. First, we compare the impact of active and passive OpenFlow network state collection methods on an SDN load-balancing application running at the controller using key performance indicators that we define. We do this comparison through: (i) a simulation of a mathematical model we derive for the SDN load-balancer, and (ii) an evaluation of a load-balancing application running on top of single and distributed controllers. Further, we investigate the impact of network state collection on a state-distribution-aware load-balancing application. Finally, we study the impact of network scale on applications requiring an up-to-date global network view in the presence of the aforementioned key factors. Our results show that both the network state collection and network state distribution can have an impact on the SDN application performance. The more the information at the controllers becomes outdated, the higher the impact would be. Even with those applications that were designed to mitigate the issues of controller state distribution, their performance was affected by the network state collection. Lastly, the results suggest that the impact of network state collection on application performance becomes more apparent as the number of distributed controllers increases.
Year
Venue
Field
2016
arXiv: Networking and Internet Architecture
Performance indicator,Control theory,Global network,Computer science,Network simulation,Network architecture,Computer network,OpenFlow,Distributed computing,Network management station,Intelligent computer network
DocType
Volume
Citations 
Journal
abs/1612.04944
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Mohamed Aslan1101.93
Ashraf Matrawy214626.98