Cisco Catalyst 3030 Command Reference Manual page 545

Blade switch

Hide thumbs Also See for Catalyst 3030:

Table of Contents

Chapter 2 Cisco Catalyst Blade Switch 3030 Cisco IOS Commands

When you enable port security on an interface that is also configured with a voice VLAN, set the

maximum allowed secure addresses on the port to two. When the port is connected to a Cisco IP phone,

the IP phone requires one MAC address. The Cisco IP phone address is learned on the voice VLAN, but

is not learned on the access VLAN. If you connect a single PC to the Cisco IP phone, no additional MAC

addresses are required. If you connect more than one PC to the Cisco IP phone, you must configure

enough secure addresses to allow one for each PC and one for the Cisco IP phone.

If any type of port security is enabled on the access VLAN, dynamic port security is automatically

enabled on the voice VLAN.

You cannot configure static secure MAC addresses in the voice VLAN.

The Port Fast feature is automatically enabled when voice VLAN is configured. When you disable voice

VLAN, the Port Fast feature is not automatically disabled.

This example shows how to configure VLAN 2 as the voice VLAN for the port:

Switch(config)# interface gigabitethernet0/2

Switch(config-if)# switchport voice vlan 2

You can verify your settings by entering the show interfaces interface-id switchport privileged EXEC

Related Commands

show interfaces

switchport priority extend

interface-id switchport

Displays the administrative and operational status of a

switching port.

Decides how the device connected to the specified port

handles priority traffic received on its incoming port.

Cisco Catalyst Blade Switch 3030 Command Reference

switchport voice vlan