Using Private VLANs doesnβt consolidate the number of VLANs used or does it? If you want to add security between virtual machines on the same subnet without exhausting VLAN number space, VMware advises to use Private VLANs. Private VLANs are an excellent way to provide layer 2 network isolation between servers in the same subnet. In this video you will learn that using Community Private VLANS doesnβt consolidate the number of VLANs used. On the other hand, when using Isolated Private VLANs you wonβt exhaust the number of available VLAN IDs.