title: Design and Evaluation of a Proxy-Based Monitoring System for OpenFlow Networks.
abstract: Software-Defined Networking (SDN) has attracted attention along with the popularization of cloud environment and server virtualization. In SDN, the control plane and the data plane are decoupled so that the logical topology and routing control can be configured dynamically depending on network conditions. To obtain network conditions precisely, a network monitoring mechanism is necessary. In this paper, we focus on OpenFlow which is a core technology to realize SDN. We propose, design, implement, and evaluate a network monitoring system for OpenFlow networks. Our proposed system acts as a proxy between an OpenFlow controller and OpenFlow switches. Through experimental evaluations, we confirm that our proposed system can capture packets and monitor traffic information depending on administrator's configuration. In addition, we show that our proposed system does not influence significant performance degradation to overall network performance.
authors.affiliation: Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan.
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Taniguchi
authors.affiliation: Graduate School of Science and Technology, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Tsutsumi
authors.affiliation: Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan.
authors.forename: Nobukazu
authors.initials: N
authors.lastname: Iguchi
authors.affiliation: Graduate School of Education, Hiroshima University, 1-1-1 Kagamiyama, Higashi-Hiroshima 739-8524, Japan.
authors.forename: Kenzi
authors.initials: K
authors.lastname: Watanabe