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A network switch is a computer networking device that links network segments or network devices. The term commonly refers to a multi-port network bridge that processes and routes data at the data link layer (layer 2) of the OSI model. Switches that additionally process data at the network layer (layer 3) and above are often called layer-3 switches or multilayer switches. A network switch is made up of network switch components.

3com Router 5009 Module 2xISDN-BRI S T SIC, 0.0000128 Gbit/秒, Cat5, 3Com Router 5009 slot, Two ISDN BRI S/T

3com Router 5009 Module 2xISDN-BRI S T SIC. 數據傳輸速率: 0.0000128 Gbit/秒, 佈線技術: Cat5. 插槽類型: 3Com Router 5009 slot, I / O端口: Two ISDN BRI S/T

Router 5009 Module 2xISDN-BRI S T SIC

3com Router 5009 Module 2xISDN-BRI S T SIC 網路交換元件