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演讲简介
Software Defined Networking (SDN) is envisioned as a novel technology to enable reliable and scalable network management by decoupling the control plane and data plane. As the network scale increases, multiple controllers have been proposed to solve the problems of scalability and reliability caused by single controller. Although some controller placement schemes based on controller replication have been proposed to recover the controller failure in SDNs, few of them can solve the failure with the existing controllers. In this paper, we propose a QoS and cost aware fault tolerant scheme in multi-controller SDNs by exploring a fine-grained trade-off between controller cost and recovery time. With considering the controller cost, load and communication delay in the failure recovery, we propose a heuristic algorithm to select backup controllers aiming to minimize the average recovery time, meanwhile avoiding the load oscillation in switch migration. Extensive simulations highlight that our scheme can improve the recovery efficiency compared with some other existing approaches.关于讲者
Professor Mohammad S. Obaidat is an internationally known academic/researcher/scientist/scholar. He received his Ph.D. degree in Computer Engineering with a minor in Computer Science from the Electrical and Computer Engineering (ECE) Department, The Ohio State University, Columbus, USA. He has received extensive research funding and published about One Thousand (1000) refereed technical articles-About half of them are journal articles, over 65 books, and over 65 Book Chapters. He is Editor-in-Chief of 3 scholarly journals and an editor of many other international journals. He is the founding Editor-in Chief of Wiley Security and Privacy Journal.
He was awarded in 2017 the IEEE CITS Hall of Fame Distinguished and Eminent Award. He received very recently the 2018 IEEE ComSoc Technical Committee on Communications Software- 2018 Technical Achievement Award on original significant technical contribution to cybersecurity, computer networks and wireless networks. He has been awarded with the Amity University Distinguished Honorary Professor Award. He also received the Distinguished Professor Award from University of Science and Technology-Beijing, China, and the SCS Outstanding Service Award. He is a Life Fellow of IEEE and a Fellow of SCS.
Email: msobaidat@gmail.com
