Voice VLAN Window

This window is available for Catalyst 2900 XL, 2950, 3500 XL, and 3550 switches. It appears when you choose VLAN > Voice VLAN on the menu bar. You can also click here to launch it.

Begin by selecting a host from the Host Name list. The settings you see in the window are for the interfaces on the selected device.

To change the settings for one or more interfaces:

  1. Select the rows that the interfaces are in.
  2. Click Modify. Then use the Modify Voice VLAN window.

To return the settings for one or more interfaces to their defaults:

  1. Select the rows that the interfaces are in.
  2. Click Set Defaults.

This table explains the voice VLAN settings and gives their defaults.

Column Explanation
Interface
The interfaces on the selected device.
Voice VLAN

The voice VLAN setting for the interface. It can be:

  • A value that identifies the VLAN.
  • Native VLANthe native VLAN for the device is the voice VLAN.
  • Nonethe interface does not belong to a voice VLAN.
  • Untaggeda CoS value should not be added to untagged packets.

The default is None.

VLAN mode The access mode for the interface. For Catalyst 2950 and 3550 switches, this is Static Access. For Catalyst 2900 XL and 3500 XL switches, this can be 802.1Q Trunk, Static Access, or ISL Trunk.
Appliance Trust

Specifies what to do with packets from a device that is daisy-chained to an IP phoneeither another IP phone or a PC. A numeric value represents a priority that overrides the priority of packets from the daisy-chained device. Trust means that priority of packets from the device is forwarded without change. None means that the priority of packets from the device is ignored. The default is None.

Note: The priority of a packet from a daisy-chained device can be overridden only if the IP phone is connected to a Catalyst 2950, 3524 PWR, 3548 XL, or 3550 switch.

Port Fast A feature that immediately brings an interface from the blocking state into the forwarding state by eliminating the forwarding delay. You can disable Port Fast (Disable), enable it for static-access ports only (Enable Static Access), or enable it for static-access and trunk ports (Enable).
IP Phone Shows whether an IP phone is connected to the interface or noteither Connected or Not Connected.

When you finish with this window, click OK.