D-Link DWS-4026 Product Manual - Page 201

Software User Manual 12/10/09 D-Link Unified Access System Field Voice VLAN Admin Mode Slot/Port Voice VLAN Interface Mode CoS Override Mode Operational State Table 108: Voice VLAN Configuration Fields Description Click Enable or Disable to administratively turn the Voice VLAN feature on or off for all ports. Select the slot and port to configure this service on. Select one of the following interface modes: • Disable: The voice VLAN service is disabled on this interface. Note that the Admin mode field takes precedence; i.e., if a particular interface is enabled, but the Admin Mode field is set to Disabled, then the service will not be operational. • None: The voice VLAN service is disabled on this interface; however, unlike Disable mode, the CoS override feature is still operational on the port. • VLAN ID: The voice VLAN packets are uniquely identified by a number you assign. All voice traffic carries this VLAN ID to distinguish it from other data traffic which is assigned the port's default VLAN ID. However, voice traffic is not prioritized differently than other traffic. • dot1p: This parameter is set by the VoIP device for all voice traffic to distinguish voice data from other traffic. All other traffic is assigned the port's default priority. • Untagged: The VoIP device sends untagged voice traffic. Overrides the 802.1p class-of-service (CoS) value for all data (non-voice) packets arriving at the port. Thus any rogue client that is also connected to the voice VLAN port cannot deteriorate the voice traffic. Indicates whether the voice VLAN is operational. • If you make any changes, click Submit to apply the change to the system. • Click Refresh to display the latest information from the router. Document 34CSFP6XXUWS-SWUM100-D7 Voice VLAN Configuration Page 201