本文讨论了光分组交换网络中的多种组播机制，包括并行模式，串行模式及混合模式全光组播机制。
Different multicasting schemes in optical packet switched networks are discussed, including the parallel mode, serial mode, and hybrid mode multicasting schemes.
也即当采用并行端口的众多多功能外设器件彼此相连时，在通用串行总线(usb)上可以实现他们的高速数据交换。
While many MFP devices still use the parallel port, there is a shift to Universal Serial Bus (USB) for the high-speed connection of peripheral devices.
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