Dell PowerConnect 8024 User Configuration Manual page 549

associated with a primary VLAN. So, the advantage of the private VLANs
feature is that it reduces the number of consumed VLANs, improves IP
addressing space utilization, and helps to avoid layer 3 routing.
Figure 22-3 shows an example Private VLAN scenario, in which five hosts (H-
A through H-E) are connected to a stack of switches (SW1, SW2). The
switch stack is connected to router R1. Port references shown are with
reference to the stack.
Figure 22-3. Private VLAN Domain
R1
TE1/1/1
SW1 SW2
Gi1/0/12
Gi2/0/11
Gi1/0/10 Gi1/0/11 Gi2/0/10
H-A H-B H-C H-D H-E
Promiscuous Ports
An endpoint connected to a promiscuous port is allowed to communicate
with any endpoint within the private VLAN. Multiple promiscuous ports can
be defined for a single private VLAN domain.
In the configuration shown in Figure 22-3, the port connected from SW1 to
R1 (TE1/1/1) is configured as a promiscuous port.
549
Configuring VLANs