Use the Traffic > VoIP (Configure Global) page to configure the switch for VoIP traffic. First enable automatic detection of VoIP devices attached to the switch ports, then set the Voice VLAN ID for the network. The Voice VLAN aging time can also be set to remove a port from the Voice VLAN when VoIP traffic is no longer received on the port.
Enables the automatic detection of VoIP traffic on switch ports. (Default: Disabled)
Sets the Voice VLAN ID for the network. Only one Voice VLAN is supported and it must already be created on the switch.
The time after which a port is removed from the Voice VLAN when VoIP traffic is no longer received on the port. (Range: 5-43200 minutes; Default: 1440 minutes)
Note: The Voice VLAN ID cannot be modified when the global Auto Detection Status is enabled.
VoIP devices attached to the switch can be identified by the manufacturer‘s Organizational Unique Identifier (OUI) in the source MAC address of received packets. OUI numbers are assigned to manufacturers and form the first three octets of device MAC addresses. The MAC OUI numbers for VoIP equipment can be configured on the switch so that traffic from these devices is recognized as VoIP. Use the Traffic > VoIP (Configure OUI) page to configure this feature.
Specifies a MAC address range to add to the list. (Format: xx-xx-xx-xx-xx-xx)
Identifies a range of MAC addresses. Setting a mask of FF-FF-FF-00-00-00 identifies all devices with the same OUI (the first three octets). Other masks restrict the MAC address range. Setting a mask of FF-FF-FF-FF-FF-FF specifies a single MAC address. (Format: xx-xx-xx-xx-xx-xx or xxxxxxxxxxxx; Default: FF-FF-FF-00-00-00)
User-defined text that identifies the VoIP devices.
Use the Traffic > VoIP (Configure Interface) page to configure ports for VoIP traffic, you need to set the mode (Auto or Manual), specify the discovery method to use, and set the traffic priority. You can also enable security filtering to ensure that only VoIP traffic is forwarded on the Voice VLAN.
Specifies if the port will be added to the Voice VLAN when VoIP traffic is detected. (Default: None)
The Voice VLAN feature is disabled on the port. The port will not detect VoIP traffic or be added to the Voice VLAN.
The port will be added as a tagged member to the Voice VLAN when VoIP traffic is detected on the port. You must select a method for detecting VoIP traffic, either OUI or 802.1ab (LLDP). When OUI is selected, be sure to configure the MAC address ranges in the Telephony OUI list.
The Voice VLAN feature is enabled on the port, but the port must be manually added to the Voice VLAN.
Enables security filtering that discards any non-VoIP packets received on the port that are tagged with the voice VLAN ID. VoIP traffic is identified by source MAC addresses configured in the Telephony OUI list, or through LLDP that discovers VoIP devices attached to the switch. Packets received from non-VoIP sources are dropped. (Default: Disabled)
Selects a method to use for detecting VoIP traffic on the port. (Default: OUI)
Traffic from VoIP devices is detected by the Organizationally Unique Identifier (OUI) of the source MAC address. OUI numbers are assigned to manufacturers and form the first three octets of a device MAC address. MAC address OUI numbers must be configured in the Telephony OUI list so that the switch recognizes the traffic as being from a VoIP device.
Uses LLDP (IEEE 802.1AB) to discover VoIP devices attached to the port. LLDP checks that the "telephone bit" in the system capability TLV is turned on.
Defines a CoS priority for port traffic on the Voice VLAN. The priority of any received VoIP packet is overwritten with the new priority when the Voice VLAN feature is active for the port. (Range: 0-6; Default: 6)
Number of minutes before this entry is aged out.
The Remaining Age starts to count down when the OUI's MAC address expires from the MAC address table. Therefore, the MAC address aging time should be added to the overall aging time. For example, if you configure the MAC address table aging time to 30 seconds, and the voice VLAN aging time to 5 minutes, then after 5.5 minutes, a port will be removed from voice VLAN when VoIP traffic is no longer received on the port. Alternatively, if you clear the MAC address table manually, then the switch will also start counting down the Remaining Age.
When VoIP Mode is set to Auto, the Remaining Age will be displayed. Otherwise, if the VoIP Mode is Disabled or set to Manual, the remaining age will display "NA."