Private-Vlan Synchronize - Cisco Catalyst 4500 Series Command Reference Manual

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

private-vlan synchronize

To map the secondary VLANs to the same instance as the primary VLAN, use the private-vlan
synchronize command.
Syntax Description
This command has no arguments or keywords.
Defaults
This command has no default settings.
Command Modes
MST configuration mode
Command History Release
12.1(12c)EW
Usage Guidelines
If you do not map the VLANs to the same instance as the associated primary VLAN when you exit the MST
configuration submode, a warning message displays and lists the secondary VLANs that are not mapped
to the same instance as the associated primary VLAN. The private-vlan synchronize command
automatically maps all secondary VLANs to the same instance as the associated primary VLANs.
Examples
This example shows how to initialize PVLAN synchronization:
Switch(config-mst)# private-vlan synchronize
Switch(config-mst)#
This example assumes that a primary VLAN 2 and a secondary VLAN 3 are associated to VLAN 2, and that
all VLANs are mapped to the CIST instance 1. This example also shows the output if you try to change the
mapping for the primary VLAN 2 only:
Switch(config)# spanning-tree mst configuration
Switch(config-mst)# instance 1 vlan 2
Switch(config-mst)# exit
These secondary vlans are not mapped to the same instance as their primary:
->3
Switch(config)#
Related Commands Command
show spanning-tree mst
OL-25342 -01
private-vlan synchronize
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0SG and IOS 15.1(1)SG)
Description
Displays MST protocol information.
private-vlan synchronize
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