Scalability Issues and Solutions for Software Defined Networks

作     者：Hohlfeld, Oliver Kempf, James Reisslein, Martin Schmid, Stefan Shah, Nadir 

作者机构：Rhein Westfal TH Aachen COMSYS Network Architectures Grp D-52074 Aachen Germany Ericsson Res Santa Clara CA 95054 USA Arizona State Univ Sch Elect Comp & Energy Engn Tempe AZ 85287 USA Univ Vienna Fac Comp Sci A-1090 Vienna Austria COMSATS Inst Informat Technol Dept Comp Sci Wah Cantt 47040 Pakistan 

出 版 物：《IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS》 (IEEE J Sel Areas Commun)

年 卷 期：2018年第36卷第12期

页      面：2595-2602页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 

基　　金：II. SUMMARY OF RESEARCH CONTRIBUTIONS IN THIS SPECIAL ISSUE This Special Issue (SI) presents original state-of-the-art research studies on scalability issues and solutions for SDNs. The relevance of and interest in this topic area is reflected by the large number of submissions: we received a total of 70 submissions from authors distributed geographically over 21 countries and all 6 continents (19 from China  15 from USA  3 each from Canada  France  Germany  Korea  and Tunisia  2 each from Japan  New Zealand  Poland  Spain  Taiwan  Turkey  and UK  and 1 each from Australia  Brazil  Hong Kong  Hungary  India  Italy  and Montenegro). All papers received at least three reviews and accepted papers went through at least one revision round. Out of the 70 papers  we eventually accepted 17 papers (acceptance ratio 24%) 

主　　题：Special issues and sections Software defined networking Scalability 

摘      要：Software Defined Networking (in short SDN, which is also an acronym for Software Defined Network), has emerged as a response to the limitations and complexities of traditional network architectures. At the heart of SDN lies the idea to consolidate the control over network devices into a logically centralized (software) controller separated from the data plane. The separation of the control plane and the data plane is realized via an open programming interface between the data plane switches and the SDN controller. The decoupling allows the control plane to evolve independently of the data plane, which enables faster innovation since software often exceeds hardware in innovation speed. Furthermore, logical centralization has the potential to simplify network operation and management by providing a single focal point where the consequences of management actions can be assessed, and possibly rejected if they would lead to some violation of operational constraints. OpenFlow, the standard SDN protocol today, is based on a simple match-action paradigm which results in great flexibilities, e.g., in terms of traffic engineering, definition of flows, as well as in-band network control functionalities.