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集线器,英文名又称Hub,在OSI模型中属于数据链路层。价格便宜是它最大的优势,但由于集线器属于共享型设备,导致了在繁重的网络中,效率变得十分低下,所以我们在中、大型的网络中看不到集线器的身影。如今的集线器普遍采用全双工模式,市场上常见的集线器传输速率普遍都为100Mbps。接下来我们了解一下集线器的几个概念: 共享型集线器最大的特点就是采用共享型模式,就是指在有一个端口在向另一个端口
Hub, also known as the English name Hub, belongs to the data link layer in the OSI model. Cheap is its biggest advantage, but because the hub is a shared device, resulting in very heavy network efficiency has become very low, so we in the medium and large networks can not see the figure of the hub. Today’s hubs generally use full-duplex mode, the common market hub transmission rates are generally 100Mbps. Next, we understand several concepts of hubs: The most prominent feature of the shared hub is the use of shared mode, which means that there is a port in the other port