The 802.1Q standard,which is part of the 802.1D bridging specification,includes a 12-bit VLAN identifier in the media access control (MAC) transmission frame.是什么意思_The 802.1Q standard,which is part of the 802.1D bridging specification,includes a 12-bit VLAN identifier in the media access control (MAC) transmission frame.在线翻译_英语_读音_用法_例句