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›› 2016, Vol. 33 ›› Issue (4): 554-561.DOI: 10.7523/j.issn.2095-6134.2016.04.018

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Batch routing in SDN networks with resource preference consideration

FANG Qiusheng, HONG Peilin   

  1. Key Laboratory of Wireless-Optical Communications of Chinese Academy of Sciences, School of Information Science and Technology, University of Science and Technology of China, Hefei 230027, China
  • Received:2015-12-09 Revised:2016-02-29 Online:2016-07-15

Abstract:

In SDN networks, the limited flow tables at switches confine the number of flows which can pass through the OpenFlow switches.The limited bandwidth resources confine the data traffic which can pass through the network links.A concept of resource preference is suggested based on traffic characteristics, and batch routing strategy is proposed to process multiple flow requests simultaneously.We first model and formulate the batch routing optimization problem, and then present a heuristic algorithm called BRP-SA to execute batch routing algorithm with resource preference consideration.Simulation results show that BRP-SA effectively balances the utilization of both flow table and bandwidth resources, and then the network accepts more flow requests.

Key words: SDN, batch routing, flow resource preference, flow table resource

CLC Number: