1-7ParametersNoneDescriptionUse the voice vlan legacy command to realize the communication between 3Com device and othervendors’ voice device by automatically adding the voice VLAN tag to the voice data coming from othervendors’ voice device.Use the undo voice vlan legacy command to disable the voice VLAN legacy function.By default, the voice VLAN legacy function is disabled.Examples# Enable the voice VLAN legacy function on Ethernet1/0/1. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] interface Ethernet 1/0/1[Sysname-Ethernet1/0/1] voice vlan legacyvoice vlan mac-addressSyntaxvoice vlan mac-address oui mask oui-mask [ description text ]undo voice vlan mac-address ouiViewSystem viewParametersoui: Specify a MAC address, in the format of H-H-H.oui-mask: Specify a MAC address mask, made up of consecutive Fs and consecutive 0s. It specifies thematching length of the OUI address. When the switch receives a packet, it matches the bits in thesource MAC address corresponding to the Fs against the OUI list.text: Description of the MAC address, containing 1 to 30 characters.DescriptionUse the voice vlan mac-address command to add an OUI entry to the OUI list for the specified MACaddress. The OUI list contains the MAC addresses of recognizable voice devices. A packet isconsidered as a voice packet only when its source MAC address can match an entry in the OUI list.Use the undo voice vlan mac-address command to remove an OUI entry from the OUI list.By default, the OUI list contains the five pre-defined OUI addresses in Table 1-2. You can modify themwith the voice vlan mac-address command.The OUI list can contain up to 16 OUI address entries.
