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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.

Cisco Feature Card 4p TR MM ST f Cat 3900, Token Ring, Cisco 3900 upgrade slot

Cisco Feature Card 4p TR MM ST f Cat 3900. 資料連結協定: Token Ring. 插槽類型: Cisco 3900 upgrade slot

Feature Card 4p TR MM ST f Cat 3900

Cisco Feature Card 4p TR MM ST f Cat 3900 網路交換元件