Abstract: Focusing on the problem of low bandwidth utilization and poor flexibility of traditional packet segmentation scheme for input queued switches, an adaptive segmentation scheme was proposed. Because of the synchronous proper- ties of centralized scheduling, the new scheme adjusts the length of segmentation unit and the matching time during the scheduling by using the status of input ports, which can reduce the padding data and the speed up that the switch needs. Finally, the simulations demonstrate that the proposed scheme exhibits good delay performance under different traffic models and is well applicable to real network.

Key words: Packet switching, Input queued, Segmentation