Cisco 4500M Command Reference

2-207
Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
78-16201-01
Chapter2Cisco IOS Commands for the Catalyst 4500 Series Switches
private-vlan synchronize
private-vlan synchronize
To map secondary VLANs to the same instance as the primary VLAN, use the private-vlan synchronize
command.
private-vlan synchronize
Syntax Description This command has no arguments or keywords.
Defaults This command has no default settings.
Command Modes MST configuration
Command History
Usage Guidelines If you do not map 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 show spanning-tree mst
Release Modification
12.1(12c)EW Support for this command was introduced on the Catalyst 4500 series switch.

Cisco 4500M Specifications

General

Brand	Cisco
Model	4500M
Category	Network Router
Language	English