Configuring Telephony OUI
OUIs are assigned by the Institute of Electrical and Electronics Engineers, Incorporated (IEEE) Registration Authority. Since the number of IP phone manufacturers is limited and well-known, the known OUI values causes the relevant frames, and the port on which they are seen, to be automatically assigned to a Voice VLAN.
The OUI Global table can hold up to 128 OUIs.
This section contains the following topics:
Adding OUIs to the Telephone OUI Table
Use the Telephony OUI page to configure Telephone OUI QoS properties. In addition, the Auto Membership Aging time can be configured. If the time since the last telephony MAC address was aged out of the MAC address table exceeds this time interval, the port is removed from the Voice VLAN.
Use the Telephony OUI page to view existing OUIs, and add new OUIs.
To configure Telephone OUI and/or add a new Voice VLAN OUI:
- Click VLAN Management > Voice VLAN > Telephony OUI. The Telephony OUI page opens.
The Telephone OUI page displays the following fields:
- Telephony OUI Operational Status--Displays whether OUIs are used to identify voice traffic.
- CoS/802.1p--Select the CoS queue to be assigned to voice traffic.
- Remark CoS/802.1p--Select whether to remark egress traffic.
- Auto Membership Aging Time--Enter the time delay to remove a port from the voice VLAN after all of the MAC addresses of the phones detected on the ports have aged out.
- Click Apply to update the Running Configuration of the switch with these values.
The Telephone OUI table is displayed:
- Click Restore OUI Defaults to delete all of the user-created OUIs, and leave only the default OUIs in the table.
To delete all the OUIs, select the top checkbox. All the OUIs are selected and can be deleted by clicking Delete. If you then click Restore, the system recovers the known OUIs.
- To add a new OUI, click Add. The Add Telephony OUI page opens.
- Enter the values for the following fields:
- Click Apply. The OUI is added to the Telephone OUI Table.
Adding Interfaces to Voice VLAN on Basis of OUIs
The QoS attributes can be assigned per port to the voice packets in one of the following modes:
- All--Quality of Service (QoS) values configured to the Voice VLAN are applied to all of the incoming frames that are received on the interface and are classified to the Voice VLAN.
- Telephone Source MAC Address (SRC)--The QoS values configured for the Voice VLAN are applied to any incoming frame that is classified to the Voice VLAN and contains an OUI in the source MAC address that matches a configured telephony OUI.
Use the Telephony OUI Interface page to add an interface to the voice VLAN on the basis of the OUI identifier and to configure the OUI QoS mode of voice VLAN.
To configure Telephony OUI on an interface:
- Click VLAN Management > Voice VLAN > Telephony OUI Interface. The Telephony OUI Interface page opens.
The Telephone OUI Interface page displays voice VLAN OUI parameters for all interfaces.
- To configure an interface to be a candidate port of the telephony OUI-based voice VLAN, click Edit. The Edit Interface Settings page opens.
- Enter the values for the following fields:
- Interface--Select an interface.
- Telephony OUI VLAN Membership--If enabled, the interface is a candidate port of the telephony OUI based voice VLAN. When packets that match one of the configured telephony OUI are received, the port is added to the voice VLAN.
- Voice VLAN QoS Mode--Select one of the following options:
- Click Apply. The OUI is added.