Cisco SR224T-NA Administration Guide - Page 170

VLAN Management Voice VLAN 12 Voice VLAN Constraints The following constraints exist: • Only one Voice VLAN is supported. • A VLAN that is defined as a Voice VLAN cannot be removed In addition the following constraints are applicable for Telephony OUI: • The Voice VLAN cannot be VLAN1 (the default VLAN). • The Voice VLAN cannot be Smartport enabled. • The Voice VLAN QoS decision has priority over any other QoS decision, except for the Policy decision. • A new VLAN ID can be configured for the Voice VLAN only if the current Voice VLAN does not have candidate ports. • The interface VLAN of a candidate port must be in General or Trunk mode. • The Voice VLAN QoS is applied to candidate ports that have joined the Voice VLAN, and to static ports. • The voice flow is accepted if the MAC address can be learned by the Forwarding Database (FDB). (If there is no free space in FDB, no action occurs). Voice VLAN Workflows The switch default configuration on Auto Voice VLAN, Auto Smartports, CDP, and LLDP cover most common voice deployment scenarios. This section describes how to deploy voice VLAN when the default configuration does not apply. Workflow1: To configure Auto Voice VLAN: STEP 1 Open the VLAN Management > Voice VLAN > Properties page. STEP 2 Select the Voice VLAN ID. It cannot be set to VLAN ID 1 (this step is not required for dynamic Voice VLAN). STEP 3 Set Dynamic Voice VLAN to Enable Auto Voice VLAN. STEP 4 Select the Auto Voice VLAN Activation method. NOTE If the device is currently in Telephony OUI mode, you must disable it before you can configure Auto Voice Vlan Cisco Small Business 200 Series Smart Switch Administration Guide 171