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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 CATALYST 6509 CHASSIS, 有線, 437 x 460 x 846 mm, 24.9 kg

Cisco CATALYST 6509 CHASSIS. 連接方式: 有線. 尺寸（寬x深x高）: 437 x 460 x 846 mm, 重量: 24.9 kg

CATALYST 6509 CHASSIS

Cisco CATALYST 6509 CHASSIS 網路交換元件