Command Line Interface

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To configure primary/community associated groups, follow these steps:
1. Use the private-vlan command to designate one or more community VLANs
and the primary VLAN that will channel traffic outside of the community groups.
2. Use the private-vlan association command to map the community VLAN(s) to
the primary VLAN.
3. Use the switchport mode private-vlan command to configure ports as
promiscuous (i.e., having access to all ports in the primary VLAN) or host (i.e.,
community port).
4. Use the switchport private-vlan host-association command to assign a port
to a community VLAN.
5. Use the switchport private-vlan mapping command to assign a port to a
primary VLAN.
6. Use the show vlan private-vlan command to verify your configuration settings.

private-vlan

Use this command to create a primary or community private VLAN. Use the no form
to remove the specified private VLAN.
Syntax
private-vlan vlan-id {community | primary}
no private-vlan vlan-id
vlan-id - ID of private VLAN. (Range: 1-4094, no leading zeroes).
community - A VLAN in which traffic is restricted to host members in the
same VLAN and to promiscuous ports in the associate primary VLAN.
primary - A VLAN which can contain one or more community VLANs, and
serves to channel traffic between community VLANs and other locations.
Default Setting
None
Command Mode
VLAN Configuration
Command Usage
Private VLANs are used to restrict traffic to ports within the same community,
and channel traffic passing outside the community through promiscuous
ports. When using community VLANs, they must be mapped to an associated
“primary” VLAN that contains promiscuous ports.
Port membership for private VLANs is static. Once a port has been assigned
to a private VLAN, it cannot be dynamically moved to another VLAN via GVRP.
Private VLAN ports cannot be set to trunked mode. (See “switchport mode” on
page 4-223.)