Design and implementation of a 320 Gb/s switch fabric

Author

Li, Wenjie ; Gong, Yiping ; Xu, Yang ; Zheng, Kai ; Liu, Bin

Author_Institution

Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing, China

fYear

2003

fDate

20-23 Oct. 2003

Firstpage

143

Lastpage

148

Abstract

With fast development of the optical fiber technology, core routers face many great challenges, especially in the technology of switch fabrics. This paper mainly discusses the design of switch fabric in a gigabit core router named Tsinghua Core Router (TCR), which is our recent research project. This core router has 320 GB/s switch capacity, supporting 16 ports, each opening at 10 Gb/s (OC192c line rate). To achieve a high-speed and large-capacity switch fabric, this paper focuses on key technologies of supporting variable-length packets with a cell-based switch fabric, segmentation and reassembly, and multi-priority guarantee for various kinds of traffic with different QoS requirements. Through implementation and performance simulation, we demonstrate that the switch fabric can meet challenges of gigabit core routers, and provide better QoS control for Internet.

Keywords

Internet; optical fibre networks; optical switches; packet switching; quality of service; telecommunication network routing; 320 Gbit/s; Internet; QoS; TCR; Tsinghua Core Router; gigabit core router; optical fiber technology; switch capacity; switch fabric; variable-length packets; Backplanes; Computer networks; Fabrics; Internet; Optical fiber networks; Optical fibers; Optical switches; Packet switching; Routing; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Networks and Mobile Computing, 2003. ICCNMC 2003. 2003 International Conference on

Print_ISBN

0-7695-2033-2

Type

conf

DOI

10.1109/ICCNMC.2003.1243039

Filename

1243039