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Fixed-length switching vs. variable-length switching in input-queued IP switches
2004 IEEE International Workshop on IP Operations and Management
Many large-scale, high speed routers adopt inputqueued switches with virtual output queuing (VOQ) for preventing head of line (HOL) blocking. Switching based on cellby-cell scheduling algorithms (fixed-length switching) have been widely studied for years, while a new idea of transferring IP packet based on a packet-by-packet scheduling algorithm (variable-length switching) has been proposed recently. These two switching modes differ largely in performance and implementation complexity. This
doi:10.1109/ipom.2004.1547602
fatcat:7bqk3yhr2zhwdeid3k4vxkde5a