• (Optional) Enable 802.1p tag (VLAN ID=0) to include COS value
• Voice is put into vlan 261

interface FastEthernet 0/1
  switchport mode access
  switchport voice vlan dot1p
  switchport access vlan 261

• Voice is put into vlan 261
• Data is put into vlan 262

interface FastEthernet 0/1
  switchport mode access
  switchport voice vlan 261
  switchport access vlan 262

• Voice is put into vlan 261
• Data is put into vlan 262 (native untagged)
• Allow more than two VLAN on port e.g. maybe PC need multiple VLAN to be trunk
• Important to add voice vlan to trunk

interface FastEthernet 0/1
  switchport trunk encapsulation dot1q
  switchport mode trunk
  switchport trunk native vlan 262
  switchport voice vlan 261
  switchport trunk allowed vlan 261

• (Optional) Enable 802.1p tag (VLAN ID=0) to include COS value
• Voice is put into vlan 262

set port auxiliaryvlan 2/1-3 dot1p
set vlan 262 2/1-3
set trunk 2/1-3 off

• Voice is put into vlan 261
• Data is put into vlan 262

set port auxiliaryvlan 2/1-3 261
set vlan 262 2/1-3
set trunk 2/1-3 off

• Voice is put into vlan 261
• Data is put into vlan 262 (native untagged)
• Allow more than two VLAN on port e.g. maybe PC need multiple VLAN to be trunk
• Important to add voice vlan to trunk

set trunk 2/1-3 on
clear trunk 2/1-3 1-4096
set vlan 262 2/1-3
set port auxiliaryvlan 261 2/1-3
set trunk 261 2/1-3