Research challenges for traffic engineering in software defined networks
Research challenges for traffic engineering in software defined networks
复制标题
DOI：
10.1109/mnet.2016.7474344
复制
发表时间：
2016-05
期刊：
影响因子：
9.3
通讯作者：
I. Akyildiz;Ahyoung Lee;Pu Wang;Min Luo;Wu Chou
中科院分区：
文献类型：
--
作者：
I. Akyildiz;Ahyoung Lee;Pu Wang;Min Luo;Wu Chou
SDN是一种新兴的网络范式，它将网络控制平面与数据转发平面分离，有望显着提高网络资源利用率、简化网络管理、降低运营成本并促进创新和演进。虽然流量工程技术过去已广泛用于 ATM 和 IP/MPLS 网络的性能优化，但前景广阔的 SDN 网络需要新颖的流量工程解决方案，能够利用全局网络视图、网络状态和流模式/特性，以实现更好的流量控制和管理。本文讨论了 SDN 流量工程的最新技术，重点关注四个核心，包括流量管理、容错、拓扑更新和流量分析。详细讨论了 SDN 流量工程解决方案的挑战性问题。
SDN is an emerging networking paradigm that separates the network control plane from the data forwarding plane with the promise to dramatically improve network resource utilization, simplify network management, reduce operating costs, and promote innovation and evolution. While traffic engineering techniques have been widely exploited for ATM and IP/MPLS networks for performance optimization in the past, the promising SDN networks require novel traffic engineering solutions that can exploit the global network view, network status, and flow patterns/characteristics in order to achieve better traffic control and management. This article discusses the state-of-the-art in traffic engineering for SDN with attention to four cores including flow management, fault tolerance, topology update, and traffic analysis. Challenging issues for SDN traffic engineering solutions are discussed in detail.