3Com 3CBLSG24 User Guide - Page 158

158 CHAPTER 13: CONFIGURING QUALITY OF SERVICE Viewing Voice VLAN The Voice VLAN Port Details Page displays the Voice VLAN port settings Port Definitions for specific ports. The Voice VLAN Port Details Page contains the following fields: ■ Select Port - Enables selecting specific ports to which the Voice VLAN port definitions are applied. ■ Selected (Blue) - Indicates the port is selected, and Voice VLAN settings are applied to the port. ■ Unselected - Indicates the port is not selected, and the Voice VLAN settings are not applied to the port. This is the default value. ■ Port - Displays the Voice VLAN Port Details for a selected port. ■ Voice VLAN Port Security - Indicates if port security is enabled on the Voice VLAN. Port Security ensures that packets arriving with an unrecognized MAC address are dropped. ■ No Changes - Maintains the current Voice VLAN port security settings. ■ Enable - Enables port security on the Voice VLAN. ■ Disable - Disables port security on the Voice VLAN. This is the default value. ■ Voice VLAN Port Mode - Defines the Voice VLAN mode. The possible field values are: ■ No Changes - Maintains the current Voice VLAN port settings. This is the default value. ■ None - Indicates that the selected port will not be added to a Voice VLAN. ■ Manual - Adding a selected port to a Voice VLAN. ■ Auto - Indicates that if traffic with an IP Phone MAC Address is transmitted on the port, the port joins the Voice VLAN. The port is aged out of the voice VLAN if the IP phone's MAC address (with an OUI prefix) is aged out and exceeds the defined. If the MAC Address of the IP phones OUI was added manually to a port in the Voice VLAN, the user cannot add it to the Voice VLAN in Auto mode, only in Manual mode.