4.26 Voice VLAN Configuration

The following sections describe the voice VLAN configuration settings and port configuration settings.

Figure 4-94. Voice VLAN Configuration

The page has the following parameters:

Voice VLAN Configuration:

  • Mode: Indicates the Voice VLAN mode operation. We must disable MSTP feature before we enable Voice VLAN. It can avoid the conflict of ingress filtering. Possible modes are:
    • Enabled: Enables Voice VLAN mode operation.
    • Disabled: Disables Voice VLAN mode operation.
  • VLAN ID: Indicates the Voice VLAN ID. It should be a unique VLAN ID in the system and cannot equal each port PVID. It is a conflict in configuration if the value equals management VID, MVR VID, PVID etc. the allowed range is 1-4095.
  • Aging Time: Indicates the Voice VLAN secure learning aging time. The allowed range is 10-10000000 sec. 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 situated between the [age_time; 2 * age_time] interval.
  • Traffic Class: Indicates the Voice VLAN traffic class. All traffic on the Voice VLAN will apply this class.

Port Configuration:

  • Port Mode: Indicates the Voice VLAN port mode. Possible port modes are:
    • Disabled: Disjoins from Voice VLAN.
    • Auto: Enables auto detect mode. It detects whether there is VoIP phone attached to the specific port and configures the Voice VLAN members automatically.
    • Forced: Forces join to Voice VLAN.
  • Port Security: Indicates the Voice VLAN port security mode. When the function is enabled, all non-telephonic MAC addresses in the Voice VLAN will be blocked for 10 sec. Possible port modes are:
    • Enabled: Enables Voice VLAN security mode operation.
    • Disabled: Disables Voice VLAN security mode operation.
  • Port Discovery Protocol: Indicates the Voice VLAN port discovery protocol. It will only work when auto detect mode is enabled. We should enable LLDP feature 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.