资料来源 : pyDict

子网;  (由一组有相类似ID 地址计算机所构成的网络)

资料来源 : Free On-Line Dictionary of Computing

subnet
     
        A portion of a {network}, which may be a physically
        independent network segment, which shares a {network address}
        with other portions of the network and is distinguished by a
        subnet number.  A subnet is to a network what a network is to
        an {internet}.