(1.2.4 The introduction of Layer 3 switching technology LAN switches enables network sites to share bandwidth exclusively, eliminates unnecessary collision detection and error retransmission, improves transmission efficiency, and can protect several independent, Communication processes that do not affect each other. In the switched network environment, user information is only transmitted between the source node/point and the destination node/point, and other nodes/points are invisible. But there is one exception, when a node/point sends a broadcast or multicast on the network, or when a node/point sends a MAC address packet that the switch does not know, all nodes/points on the switch will receive this message. a broadcast message. A fully switched environment constitutes a large broadcast domain.)
收藏
