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As the broadband access technologies, such as DSL, cable modem, and gigabit Ethernet, are providing affordable broadband solutions to the Internet from home and the enterprise, it is required to build next generation routers with high-speed interfaces (e.g., 10 or 40 Gb/s) and large switching capacity (e.g., multipetabit). This paper first points out the issues of building such routers, such as memory speed constraint, packet arbitration bottleneck, and interconnection complexity. It thendoi:10.1109/jproc.2002.802001 fatcat:abbtxhetq5hwdisgdqavfgi2y4