Input queued (IQ) switch architectures with virtual output queues (VOQ) can scale up to very high speed. With the increase in density of VLSI, buffering at Crossbar cross points for one cell or packet become possible.

• 带虚拟输出队列(VOQ)的输入队列(IQ)交换结构可按比例地达到很高的速度,甚大规模集成电路(VLSI)集成度的不断提高使得对于Crossbar的交叉点在硬件上为每个信元或包留有足够的缓存成为可能。