VLAN Management
Voice VLAN
Cisco 500 Series Stackable Managed Switch Administration Guide Release 1.3 238
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- Static—User-defined voice VLAN configuration defined on the device.
- CDP—UC that advertised voice VLAN configuration is running CDP.
- LLDP—UC that advertised voice VLAN configuration is running LLDP.
- Voice VLAN ID—The identifier of the advertised or configured voice
VLAN
• Voice VLAN ID—The identifier of the current voice VLAN.
• CoS/802.1p—The advertised or configured CoS/802.1p values that are
used by the LLDP-MED as a voice network policy.
• DSCP—The advertised or configured DSCP values that are used by the
LLDP-MED as a voice network policy.
• Best Local Source—Displays whether this voice VLAN was used by the
device. The following options are available:
- Yes—The device uses this voice VLAN to synchronize with other Auto
Voice VLAN-enabled switches. This voice VLAN is the voice VLAN for the
network unless a voice VLAN from a higher priority source is discovered.
Only one local source is the best local source.
- No—This is not the best local source.
STEP 3 Click Refresh to refresh the information on the page
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 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:
• Adding OUIs to the Teleph ony OUI Table
• Adding Interfaces to Voice VLAN on Basis of OUIs
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