Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
private-vlan synchronize
private-vlan synchronize
To map the 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 mode
Command History
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
Release Modification
12.1(12c)EW Support for this command was introduced on the Catalyst 4500 series switch.
Command Description
show spanning-tree mst Displays MST protocol information.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E