How many layers does a PoE switch have
Also called a multilayer switch, a PoE layer 3 switch can route high-speed traffic between different networks such as multiple Virtual Local Area Networks (VLANs) or main networks and their branch offices. Unlike ordinary switches, Layer 2 switches give data links a direct access while by-passing data frame decapsulation process. A Power over Ethernet switch both enables communication among network clients and provides power using the same RJ45 network cable to PoE-enabled edge devices, such as VoIP.
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