Cisco Small Business 200 Series

VLAN Management
Voice VLAN
Cisco Small Business 200 Series Smart Switch Administration Guide 195
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- No—This is not the best local source.
STEP 3 Click Refresh to refresh the information on the page
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
cause 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 covers the following topics:
• Telephony OUI Table
• Telephone OUI Interface
Telephony OUI Table
Use the Telephony OUI page to configure Telephony OUI QoS properties. In addition, the Auto Membership
Aging time can be configured. If the specified time period passes with no telephony activity, the port is
removed from the Voice VLAN.
Use the Telephony OUI page to view existing OUIs, and add new OUIs.
To configure Telephony OUI and/or add a new Voice VLAN OUI:
STEP 1 Click VLAN Management > Voice VLAN > Telephony OUI.
The Telephony OUI page contains 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.
STEP 2 Click Apply to update the Running Configuration of the device with these values.
The Telephony OUI table appears:
• Telephony OUI—First six digits of the MAC address that are reserved for OUIs.