Dell Networking X Series: How to Configure Voice VLAN Using webGUI

This article explains how to enable voice VLAN on Dell Networking X-series switches using the webGUI.
 

Table of Contents

1. Edit Spanning Tree Protocol (STP) port Settings
2. Configure Link Layer Discovery Protocol (LLDP) port settings
3. Add MED network policy
4. Edit MED port settings
5. Edit VLAN port settings
6. Check VLAN dashboard
7. Check the Organizational Unique Identifier (OUI) table
8. Enable Voice VLAN globally
9. Enable Interface Voice VLAN
10. Verify that the Phone mac address is learned in the Voice Vlan

Procedure

In the below example, the images show the configuration for the voice VLAN 20 applied to port Gi1/0/3.
 

Step 1: Edit STP port Settings

Click Network Administration > Spanning Tree and LAG > Spanning Tree > STP Port Settings

Step 2: Configure LLDP port settings

Click Network Administration > Link Layer Discovery Protocol (LLDP) > LLDP Port Settings
Select state as Transmit (TX) & Receive (RX) and verify that the optional Type Length Value (TLV) and management address are advertised.

Edit LLDP port settings on all ports being used for the voice VLAN.

Step 3: Add MED network policy

Click Network Administration > Link Layer Discovery Protocol (LLDP) > MED Network Policy
The below example shows the creation of policy 1. Under this policy, select the application as voice, VLAN ID as tagged, user priority as 5, and a Differentiated Services Code Point (DSCP) value as 46.

User priority - Class of service (5) and DSCP value (46) are a typical best practice.

Step 4: Edit MED port settings

Click Network Administration > Link Layer Discovery Protocol (LLDP) > MED Port Settings.
Select Enable LLDP-MED as enabled, move network policy and location from available TLVs to Tx optional TLVs. Then move the policy created (1) to network policy.

Step 5: Edit VLAN port settings

Click Network Administration > VLAN >Standard VLAN > VLAN Port Settings.
Port which is used to connect the IP phone should be set to general mode.
Set the native VLAN (PVID) for data traffic as untagged.
 

Voice VLAN should not be added as tagged or untagged.

Steps 6: Check VLAN dashboard

Click Network Administration > VLAN >Standard VLAN
Ensure that the symbol 'U' is shown in Native/PVID VLAN and the symbol 'T' is shown in Voice VLAN.


 

Step 7: Check the OUI table

Click Network Administration > VLAN > Voice VLAN > OUI

Verify that the IP phone's MAC OUI is in the Voice VLAN OUI table.
 

 First 3 bytes of the MAC address is known as the Organizationally Unique Identifier (OUI)

As an example: for an Avaya IP phone with the mac address 00:09:6E:2C:F4:C5, the OUI is 00:09:6E.


 

Step 8: Enable Voice VLAN globally

Click Network Administration > VLAN > Voice VLAN
Enable voice VLAN, set VLAN ID and define the Class of service.

Use the same value to set the class of service (5) as mentioned in step 3 (Create MED network policy)

Step 9: Enable Interface Voice VLAN

Click Network Administration > VLAN > Voice VLAN
Set Voice VLAN port mode to auto.
 

 Edit port settings on all ports that are to participate in the voice VLAN.

After verifying that the IP phone is working, save all changes to the startup configuration.

Step 10: Verify that the Phone mac address is learned in the Voice Vlan

To verify whether the mac address is learned in the voice vlan, use command "show mac address-table vlan X". (Where X is the voice vlan ID number)

In the below example the voice vlan ID is 20 and the phone is connected to gi1/0/1 port

console# show mac address-table vlan 20

Flags: I - Internal usage VLAN
Aging time is 300 sec
Vlan          Mac Address         Port       Type
------------    ---------------------         ----------    ----------
20        XX:XX:XX:XX:XX:XX   gi1/0/1    dynamic

For more information about how to check the mac address table on Dell Networking X series switches through WebGUI and CLI see the following article:
Dell Networking X Series: How to Check MAC Address Table Using WebGUI and CLI

.

.