A 320-Gb/s IP router with QoS control

Authors:
Wenjie Li;YiPing Gong;Yang Xu;Kai Zheng;Bin Liu
Affiliations:
Department of Computer Science and Technology, Tsinghua University, Beijing, China, 100084;Department of Computer Science and Technology, Tsinghua University, Beijing, China, 100084;Department of Computer Science and Technology, Tsinghua University, Beijing, China, 100084;Department of Computer Science and Technology, Tsinghua University, Beijing, China, 100084;Department of Computer Science and Technology, Tsinghua University, Beijing, China, 100084
Venue:
ICCC '02 Proceedings of the 15th international conference on Computer communication
Year:
2002

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Abstract

The explosion in the number of users attached to the Internet has caused the requirements for network equipments to grow beyond anything ever envisioned. Concomitant to explosive connections, there is an ever-increasing demand for bandwidth, packet forwarding rate and switch capacity. Such growth has put pressure on router technology to keep pace. This paper describes a design of a gigabit core router we are developing recently, which is named Tsinghua Core Router (TCR). This router has a backplane full-duplex speed up to 320 Gb/s, supporting 16 ports, each operating at 10Gb/s (OC192c line rate). In addition, to guarantee Quality of Service (QoS) to various kinds of traffic, this router employs cell-based crossbar switch which can support many priority levels, and can provide service to both unicast and multicast traffic.