6-6. Private VLANs

· Private VLANs allow for additional security between devices in a common subnet.
· Private edge VLANs can be configured to prevent connectivity between devices on access switches.
· Private VLANs can be configured on the Catalyst 6000 and Catalyst 4000 series products.
· Within a private VLAN, you can isolate devices to prevent connectivity between devices within the isolated VLAN.
· Within a private VLAN, communities can be created to allow connection between some devices and to prevent them from communicating with others.
· Promiscuous ports are mapped to private VLANs to allow for connectivity to VLANs outside of this network.