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724-746-5500 | blackbox.com
Page 127
LGB5028A User‘s Manual
Chapter 6: Configuration
VLAN ID: Indicate the Voice VLAN ID. It should be a unique VLAN ID in the system and cannot equal each port’s PVID. It is a
conflict in configuration if the value equals management VID, MVR VID, PVID etc. The allowed range is 1 to 4095.
Aging Time: Indicate the Voice VLAN secure learning aging time. The allowed range is 10 to 10000000 seconds. It is used when
security mode or auto detect mode is enabled. In other cases, it will be based on hardware aging time. The actual aging time will
be between the [age_time; 2 * age_time] interval.
Traffic Class: Indicate the Voice VLAN traffic class. All traffic on the Voice VLAN will apply to this class.
Port: This is the port number.
Port Mode: Indicates the Voice VLAN port mode.
When the port mode isn't equally disabled, you must disable MSTP feature before enabling Voice VLAN. This will avoid a conflict
of ingress filtering.
Possible port modes are:
Disabled: Disjoin from Voice VLAN.
Auto: Enable auto detect mode. It detects whether there is VoIP phone attached to the specific port and configures the Voice
VLAN members automatically.
Forced: Force join to Voice VLAN.
Port Security:
Indicate the Voice VLAN port security mode. When the function is enabled, all nontelephonic MAC addresses in the Voice VLAN
will be blocked for 10 seconds. Possible port modes are:
Enabled: Enable Voice VLAN security mode operation.
Disabled: Disable Voice VLAN security mode operation.
Port Discovery Protocol:
Indicate the Voice VLAN port discovery protocol. It will only work when auto detect mode is enabled. Enable LLDP before
configuring discovery protocol to “LLDP” or “Both.” Changing the discovery protocol to “OUI” or “LLDP” will restart auto detect
process. Possible discovery protocols are:
OUI: Detect telephony device by OUI address.
LLDP: Detect telephony device by LLDP.
Both: Both OUI and LLDP.
Buttons:
Save: Click to save changes.
Reset: Click to undo any changes made locally and revert to previously saved values.
6.11.2 OUI
The section describes how to configure the voice VLAN OUI table. The maximum entry number is 16. Modifying the OUI table
will restart auto detection.
Web Interface
To configure Voice VLAN OUI table in the Web interface:
1. Select “Add new entry” or “Delete” in the Voice VLAN OUI table.
2. Specify “Telephony OUI,” “Description.”
3. Click “Save.”
