Managed Switches
Figure 5. Private VLANs
The following figure illustrates the private VLAN traffic flow. Five ports A, B, C, D, and E make
up a private VLAN. Port A is a promiscuous port which is associated with the primary VLAN
100. Ports B and C are the host ports which belong to the isolated VLAN 101. Ports D and E
are the community ports which are associated with community VLAN 102. Port F is the
inter-switch/stack link. It is configured to transmit VLANs 100, 101 and 102. Colored arrows
represent possible packet flow paths in the private VLAN domain.
Figure 6. Packet flow within a Private VLAN domain
VLANs
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