网路管理- Ch02 Network Devices.pdf

Chapter 2 Network Devices Contents Repeaters Hubs Pros and Cons of Repeaters and Hubs Wireless Access Point Network Segmentation Bridges Switches Routers Brouters Repeaters 中繼器的特徵： 電子訊號經由網路傳送，由於 阻抗的關係，訊號會衰減 ，需 用中繼器讓訊號再生 。 信號的放大與整波 應用於早期的乙太網路 Contents Repeaters Hubs Pros and Cons of Repeaters and Hubs Wireless Access Point Network Segmentation Bridges Switches Routers Brouters Hubs 集線器的特徵： 把雙絞線集中管理 ，不讓 有問題的區段影響整個網路 的運作。 通常約有4個以上的UTP埠 搭配1~2個BNC接頭 。 集線器內的所有的埠都共享 固定的頻寬。 Contents Repeaters Hubs Pros and Cons of Repeaters and Hubs Wireless Access Point Network Segmentation Bridges Switches Routers Brouters Pros and Cons of Repeaters and Hubs Pros of Repeaters and Hubs They can extend a network’s total distance. They do not seriously affect network performance. Certain repeaters can connect networks using different media. Pros and Cons of Repeaters and Hubs Cons of Repeaters and Hubs They cannot connect different networks architecture, such as Token Ring and Ethernet. They do not reduce network traffic. They do not segment the network. Contents Repeaters Hubs Pros and Cons of Repeaters and Hubs Wireless Access Point Network Segmentation Bridges Switches Routers Brouters Wireless Access Point An AP provides cell-based areas where wireless clients can con