Ключевые слова: black, broadcast traffic, computer engineering, computer networking, computer science, connector, data transfer, distributed computing, ethernet, ethernet physical layer, ethernet plug, fast ethernet, hub, ieee 8023, information technology, lan, lan technologies, local area network, man, mirror surface, networking technologies, port, repeater, rj 45, rj45, rj45 connector, slot, switch, telecommunications network, traffic, twisted pair,