Objective

Organizationally Unique Identifiers (OUI) are the first three bytes of a MAC Address, while the last three bytes contain a unique station ID. You can add a specific manufacturer with the OUI. Once the OUI is added, all traffic received on voice VLAN ports from the specific IP phone with a listed OUI is forwarded on the voice VLAN. Unlike the telephony OUI mode that detects voice devices based on telephony OUI, Auto Voice VLAN mode depends on auto smartport to dynamically add the ports to the voice VLAN.

The objective of this article is to explain how to configure telephony OUI on the 200/300 Series Managed Switches.

Applicable Devices

• SF/SG 200 and SF/SG 300 Series Managed Switches

Software Version

• 1.3.0.62

Enable Telephony OUI

Step 1. Log in to the web configuration utility and choose VLAN Management > Voice VLAN > Properties. The Properties page opens:

Step 2. Enter the voice VLAN ID for voice traffic in the Voice VLAN ID field.

Note: The voice VLAN ID cannot be the same as the default Voice VLAN ID.

Step 3. (Optional) Choose the class of service (CoS) queue from the CoS/802.1p drop-down list to place voice traffic. This value is used by LLDP-MED (Link Layer Discovery Protocol - Media Endpoint Discovery Protocol) as a voice network policy.

Step 4. (Optional) Choose the differentiated services code point (DSCP) from the DSCP drop-down list to mark the incoming voice packets with the respective service. This value is used by LLDP-MED (Link Layer Discovery Protocol - Media Endpoint Discovery Protocol) as a voice network policy.

Note: For more information about LLDP-MED network policy, refer to the article Link Layer Discovery Protocol (LLDP) Media Endpoint Discovery (MED) Network Policy Configuration on the 200/300 Series Managed Switches.

Note: In the Operational Status field, you can find the current configured values for Voice VLAN ID,  CoS/802.1p, and DSCP.

Step 5. In the Dynamic Voice VLAN field, click Enable Telephony OUI to enable telephony OUI.

Step 6. Click Apply to save the configuration.

Add a New OUI to Telephony OUI Table

Step 1. Log in to the web configuration utility and choose VLAN Management > Voice VLAN > Telephony OUI. The Telephony OUI page opens:

Note: The Telephony OUI Operational Status field displays the current status of telephony OUI.

Step 2. (Optional) Choose the class of service (CoS) queue from the CoS/802.1p drop-down list to assign to voice traffic.

Step 3. (Optional) Check the Remark CoS/802.1p check box to have outgoing voice traffic to be marked with the selected CoS value.

Step 4. Enter the time in the Auto Membership Aging Time field that you would like to maintain an interface to be part of the voice VLAN after the time to live value expired on all the MAC addresses of the phones detected on the interface.

Step 5. Click Apply to save the configuration.

Step 6. (Optional) To delete all the telephony OUI entries, check the top check box in the Telephony OUI Table, and then click Delete.

Step 7. (Optional) To delete a specific telephony OUI entry, check the check box of the telephony OUI you would like to delete, and click Delete.

Step 8. (Optional) To delete all the user-defined telephony OUI entries and maintain the default telephony OUI, click Restore Default OUIs.

Step 9. To add a new telephony OUI, click Add. The Add Telephony OUI window appears.

Step 10. Enter the first three octets of the device MAC address in the Telephony OUI field.

Step 11. (Optional) Enter a description of the OUI in the Description field.

Step 12. Click Apply to add the telephony OUI.

The image below shows the changes after the configuration.

Add Interface to Voice VLAN on Basis of OUIs

Step 1. Log in to the web configuration utility and choose VLAN Management > Voice VLAN > Telephony OUI Interface. The Telephony OUI Interface page opens:

Step 2. Click the radio button of the interface you would like to configure for telephony OUI.

Step 3. Click Edit. The Edit Interface Setting window appears.

Step 4. (Optional) If you want to configure a different interface, click either Port or LAG (Link Aggregation Group) radio buttons in the Interface field and choose another interface from the drop-down list.

Note: A LAG combines interfaces into a single logical link, which provides greater bandwidth.

Step 5. Check the Enable check box in the Telephony OUI VLAN Membership field to enable telephony OUI on the chosen interface. If packets match one of the available telephony OUI, then the interface is added to the voice VLAN.

Step 6. Click one of the available QoS (Quality of Service) modes in the Voice VLAN QoS Mode field:

• All — Applies QoS parameters to all packets intended for the voice VLAN.

• Telephone Source MAC Address — Applies QoS parameters to only packets from IP phones.

Step 7. Click Apply to save the configuration.

Apply an Interface Configuration to Multiple Interfaces

Step 1. Log in to the web configuration utility and choose VLAN Management > Voice VLAN > Telephony OUI Interface. The Telephony OUI Interface page opens:

Step 2. Click the radio button of the interface that you would like to copy to multiple interfaces.

Step 3. Click Copy Settings. The Copy Settings window appears.

Step 4. Enter the interfaces that you want to apply the configuration to in the To field. You can use the interface numbers or the name of the interfaces as input. You can enter each interface separated by a comma (For example: 1, 3, 5 or GE1, GE3, GE5) or you can enter a range of interfaces (For example: 1-5 or GE1-GE5).

Step 5. Click Apply to save the configuration.

The image below shows the changes after the configuration.