PVLANs

We must first think about local area networks (LANs) and virtual LANS (VLANs) before we can begin considering private VLANs (PVLANs). To form a VLAN, we partition a physical network so that distinct broadcast domains are created. To physically replicate the function of a VLAN, you would require a separate isolated network per LAN, cabled back to the devices participating in the specific LAN.

VLANs are typically implemented on switch or router devices. However, simpler, less-expensive devices support only a subset of the VLAN implementation features. These may be implemented in the devices firmware as a form of partitioning at the port level on the device. In these scenarios, spanning VLANs to additional devices would require running dedicated ...

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