Controller load optimization strategies in Software-Defined Networking: A survey

IF 7.7 2区计算机科学 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

Journal of Network and Computer Applications Pub Date : 2024-10-16 DOI:10.1016/j.jnca.2024.104043

Yong Liu , Yuanhang Ge , Qian Meng , Quanze Liu

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引用次数: 0

Abstract

In traditional networks, the static configuration of devices increases the complexity of network management and limits the development of network functions. Software-Defined Networking (SDN) employs controllers to manage switches, thereby simplifying network management. However, with the expansion of network scale, the early single controller architecture gradually became a performance bottleneck for the entire network. To solve this problem, SDN uses multiple controllers to manage the network, which improves the scalability of the network. However, due to the dynamic change in network traffic, multi-controller architectures face the challenge of load imbalance among controllers. In recent years, researchers have proposed various novel load optimization strategies to improve resource utilization and the performance of SDN networks. This paper reviews load optimization strategies in SDN, including the latest research results in switch migration and controller placement. Subsequently, we analyze the advantages and disadvantages of existing load optimization strategies. Finally, we discuss the future development direction of the load optimization strategy.

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软件定义网络中的控制器负载优化策略：调查

在传统网络中，设备的静态配置增加了网络管理的复杂性，限制了网络功能的发展。软件定义网络（SDN）采用控制器管理交换机，从而简化了网络管理。然而，随着网络规模的扩大，早期的单一控制器架构逐渐成为整个网络的性能瓶颈。为解决这一问题，SDN 使用多个控制器来管理网络，从而提高了网络的可扩展性。然而，由于网络流量的动态变化，多控制器架构面临着控制器间负载不平衡的挑战。近年来，研究人员提出了各种新型负载优化策略，以提高 SDN 网络的资源利用率和性能。本文回顾了 SDN 中的负载优化策略，包括交换机迁移和控制器放置方面的最新研究成果。随后，我们分析了现有负载优化策略的优缺点。最后，我们讨论了负载优化策略的未来发展方向。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Network and Computer Applications 工程技术-计算机：跨学科应用

CiteScore

21.50

自引率

3.40%

发文量

142

审稿时长

37 days

期刊介绍： The Journal of Network and Computer Applications welcomes research contributions, surveys, and notes in all areas relating to computer networks and applications thereof. Sample topics include new design techniques, interesting or novel applications, components or standards; computer networks with tools such as WWW; emerging standards for internet protocols; Wireless networks; Mobile Computing; emerging computing models such as cloud computing, grid computing; applications of networked systems for remote collaboration and telemedicine, etc. The journal is abstracted and indexed in Scopus, Engineering Index, Web of Science, Science Citation Index Expanded and INSPEC.