標題: Weighted Routing in Hierarchical Multi-domain SDN Controllers
作者: Huang, Jian-Jhong
Chen, Ying-Yu
Chen, Chien
Chu, Yu Huang
資訊工程學系
Department of Computer Science
關鍵字: software-defined network;OpenFlow;multi-controller;hierarchical architecture;Routing
公開日期: 2015
摘要: In the common implementation of software defined networking where only one controller is used, tasks required by various applications may overwhelm the controller as the network grows, leading to degradation of the network performance. Some multi-controller architectures have been proposed to remedy such scalability issue. In this paper, we present our design and implementation of a routing application under a hierarchical multi-controller architecture. In this architecture, a network is partitioned into multiple domains, each of which is managed by a dedicated local controller, which is managed by a common global controller. The routing application is executed on the local and global controllers, jointly providing a routing service for each new flow. We provide effective mechanisms to reduce the link state that should be kept by the global controller. We propose a weight function on the links so that a weighted shortest path can be found that avoids the congested links on the network. Experiments results show that our routing application in the hierarchical multi-controller architecture has a great improvement over that of the single-controller architecture in terms various performance metrics.
URI: http://hdl.handle.net/11536/135792
ISBN: 978-4-8855-2296-3
期刊: 2015 17TH ASIA-PACIFIC NETWORK OPERATIONS AND MANAGEMENT SYMPOSIUM APNOMS
起始頁: 356
結束頁: 359
顯示於類別:會議論文