Like a serial port, each USB port on a computer is assigned a unique identification number (port id) by the USB controller.

像串行端口一样，计算机上每一个usb端口都由US b控制器指定了一个惟一的标识数字(端口id)。

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Each port is assigned a port ID. Port IDs are 16 bits long and consist of two parts: a 6-bit priority setting and a 10-bit port number.

每个端口指定了一个端口id，端口id长16位，由两部分组成，一个6位的优先值和一个10为的端口号。

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Using a new technology called N-Port ID Virtualization, a single FC adapter hooked up to a SAN can be used by multiple VIO client LPARs simultaneously.

通过使用称为n - Port ID Virtualization的新技术，多个VIO客户机LPAR可以同时使用连接到SAN的单一FC适配器。

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