Dell PowerConnect 5548 User Guide - Page 496

• None - Disables the selected port/LAG on the Voice VLAN. This is the default. • Static - Statically adds the port to the Voice VLAN. This is usually done for VoIP uplink ports that connect the device to VoIP PBX, for example. • Auto - Indicates that if traffic with an IP phone MAC address is transmitted on the port/LAG, the port/LAG joins the Voice VLAN. The port/LAG is aged out of the voice VLAN if the IP phone's MAC address (with an OUI prefix) is aged out. If the MAC address of the IP phones OUI was added manually to a port/LAG in the voice VLAN, the user cannot add it to the Voice VLAN in Auto mode, only in Static mode. - Voice VLAN Security - Enable/disable security on the interface. Security ensures that packets arriving with an unrecognized OUI are dropped (for example data packets). Defining Voice VLAN Port Settings Using CLI Commands The following table summarizes the CLI command for defining Voice VLAN port settings. Table 14-8. Voice VLAN Port Settings CLI Commands CLI Command voice vlan enable no voice vlan enable voice vlan secure no voice vlan secure Description Enables automatic voice VLAN configuration on a port. Use the no form of this command to disable automatic voice VLAN configuration on a port. Configures secure mode for the voice VLAN. Use the no form of this command to disable secure mode. 496 Dell PowerConnect 55xx Systems User Guide