A Survey on High Performance Switch Architecture
Zhigang Sun · Dianzi xuebao · 2010
Current router architectures based on single-stage switch with centralized scheduling cannot meet the Internet development requirements in terms of traffic,the number of hosts and applications.In the last couple of years,high performance switches in order to promote the scalability,throughput and QoS capabilities of Internet routers have attracted more and more attention in the area of router technology.The paper presents a survey of high performance switch design from aspects of architecture,scheduling strategy and QoS features,further analyses and compares the scheduling algorithms for each switch architecture in terms of scalability,implementation complexity,delay and throughput guarantees,load balancing and packet reordering.Finally,future directions and possible open problems are discussed.