Research on and Design of a Novel Switch Core for Terabit Routers
Laixian Peng · Telecommunication Engineering · 2006
In the design of high-speed switch cores,there has existed a contradiction between scalability in hardware and efficient performance.After summarizing the key technologies of high-speed switch cores,a novel switch core based on iRGRR(iterative request-grant-based round-robin) scheduling algorithm is presented.This switch core has many good features,such as simple,scalability and fine performance,and its appearance greatly relaxes the contradiction mentioned above.The switch core can also provide quality of service guarantees and support scheduling of IP packets,so it can be used in terabit routers.The performance of the switch core is also analysed,and hardware design scheme is given.