Title
Adaptive Robust Traffic Engineering in Software Defined Networks.
Abstract
One of the key advantages of Software-Defined Networks (SDN) is the opportunity to integrate traffic engineering modules able to optimize network configuration according to traffic. Ideally, the network should be dynamically reconfigured as traffic evolves, so as to achieve remarkable gains in the efficient use of resources with respect to traditional static approaches. Unfortunately, reconfigurations cannot be too frequent due to a number of reasons related to route stability, forwarding rules instantiation, individual flows dynamics, traffic monitoring overhead, etc.In this paper, we focus on the fundamental problem of deciding whether, when and how to reconfigure the network during traffic evolution. We propose a new approach to cluster relevant points in the multi-dimensional traffic space taking into account similarities in optimal routing and not only in traffic values. Moreover, to provide more flexibility to the decisions on when to apply a reconfiguration, we allow some overlap between clusters that can guarantee a good-quality routing regardless of the transition instant.We compare our algorithm with state-of-the-art approaches in realistic network scenarios. Results show that our method significantly reduces the number of reconfigurations with a negligible deviation of the network performance with respect to the continuous update of the network configuration.
Year
DOI
Venue
2017
10.23919/IFIPNetworking.2018.8696406
2018 IFIP Networking Conference (IFIP Networking) and Workshops
Field
DocType
Volume
Cluster (physics),Computer science,Computer network,Network configuration,Software-defined networking,Traffic engineering,Control reconfiguration,Distributed computing,Network performance
Journal
abs/1712.05651
Citations 
PageRank 
References 
1
0.36
6
Authors
5
Name
Order
Citations
PageRank
davide sanvito1407.72
Ilario Filippini223121.51
Capone, A.38711.08
Stefano Paris414015.36
Jeremie Leguay530328.78