Users Guide

Layer 2 Switching Commands 849
Figure 3-1. Private VLANs
Isolated VLAN
An endpoint connected over an isolated VLAN is allowed to communicate
with endpoints connected to promiscuous ports only. Endpoints connected to
adjacent endpoints over an isolated VLAN cannot communicate with each
other.
Community VLAN
An endpoint connected over a community VLAN is allowed to communicate
with the endpoints within the community and can also communicate with
any configured promiscuous port. The endpoints which belong to one
community cannot communicate with endpoints which belong to a different
community or with endpoints connected over isolated VLANs.
Private VLAN Operation in the Switch Environment
The Private VLAN feature operates in a stacked or single switch environment.
The stack links are transparent to the configured VLAN, thus there is no need
for special private VLAN configuration. Any private VLAN port can reside on
any stack member.