Users Guide

Table Of Contents
Layer 2 Switching Commands 907
trunk secondary—Configures an interface as a private VLAN isolated
trunk port. These ports can carry traffic of several secondary VLANs and
normal VLANs.
Default Configuration
This command has no default configuration. By default, a port is neither
configured as promiscuous or host.
Command Mode
Interface Configuration (Ethernet or port-channel)
User Guidelines
Do not configure private VLANs on ports configured with any of these
features:
Link Aggregation Control Protocol (LACP)
Multicast VLAN Registration (MVR)
Voice VLAN
It is recommended that the private VLAN host ports be configured as
spanning-tree portfast.
Command History
Syntax updated in version 6.6 firmware.
Example
console(config)#interface gigabitethernet 1/0/8
console(config-if-Gi1/0/8)#switchport mode private-vlan host
switchport private-vlan
Use the switchport private-vlan command in Interface Configuration mode
to define a private VLAN association for an isolated or community port or a
mapping for a promiscuous port.
Use the no form of the command to remove the private VLAN association or
mapping from the interface.