Configuration Example of Voice VLAN

Owned by Tracy Yang (Unlicensed)
Apr 26, 2023
3 min read

Procedure

Step1         Configure the VLAN, configure port mode to trunk. 

admin@XorPlus# set vlans vlan-id 10
admin@XorPlus# set interface gigabit-ethernet ge-1/1/1 family ethernet-switching port-mode trunk

Step2         Configure an interface into voice VLAN.

admin@XorPlus# set interface gigabit-ethernet ge-1/1/1 voice-vlan vlan-id 10

Step3        Configure the mode for how an interface is added to a voice VLAN.

admin@XorPlus# set interface gigabit-ethernet ge-1/1/1 voice-vlan mode manual

Step4         Configure the tagged mode for the outgoing packet of a voice VLAN interface.

admin@XorPlus# set interface gigabit-ethernet ge-1/1/1 voice-vlan tagged mode tag

Step5        Configure the aging time for voice VLAN.

admin@XorPlus# set vlans voice-vlan aging 600

Step6         Configure an OUI for the voice VLAN.

admin@XorPlus# set vlans voice-vlan mac-address 00:11:11:00:00:01 mask ff:ff:ff:00:00:00

Step7         (Optional) Configure description information for the OUI address.           

admin@Xorplus# set vlans voice-vlan mac-address 00:11:11:00:00:01 description CompanyPhone

Step8         Configure the 802.1p priority and DSCP priority for a voice VLAN.

admin@XorPlus# set vlans voice-vlan local-priority 6
admin@XorPlus# set vlans voice-vlan dscp 63

Step9         Enable LLDP function to support IP phone of LLDP, LLDP-MED and CDP.

admin@XorPlus# set protocols lldp enable true

Step10        Enable LLDP compliance with CDP to support IP phone of CDP.

    a)      Enable global LLDP compliance with CDP. 

admin@XorPlus# set protocols lldp compliance cdp true

    b)     Enable interface-based LLDP compliance with CDP. 

admin@XorPlus# set protocols lldp interface ge-1/1/1 compliance cdp true

NOTE:

  •   To enable LLDP compliance with CDP on a specific interface, you need to enable both the global and interface-based LLDP compliance with CDP functions.
  •   To avoid unnecessary trouble, you should only configure CDP compliance on access port intended for VoIP phones, but do not configure CDP on other interfaces.


Verify the Configuration

  •   You can use the run show vlans voice-vlan oui command to view the OUI addresses of voice VLAN, including default OUI, user-configured OUI and learned OUI.
admin@XorPlus# run show vlans voice-vlan oui
Oui_Address          Mask                 Description       
0:1:e3:0:0:0         ff:ff:ff:0:0:0       Siemens phone      
0:3:6b:0:0:0         ff:ff:ff:0:0:0       Cisco phone        
0:4:d:0:0:0          ff:ff:ff:0:0:0       Avaya phone        
0:60:b9:0:0:0        ff:ff:ff:0:0:0       Philips/NEC phone  
0:d0:1e:0:0:0        ff:ff:ff:0:0:0       Pingtel phone      
0:e0:75:0:0:0        ff:ff:ff:0:0:0       Polycom phone      
0:e0:bb:0:0:0        ff:ff:ff:0:0:0       3com phone    
00:11:11:00:00:01 ff:ff:ff:0:0:0      CompanyPhone
Learned_Oui_Address     Mask                
22:22:22:22:11:11    ff:ff:ff:ff:ff:ff   
22:22:22:22:22:22    ff:ff:ff:ff:ff:ff   
22:22:22:22:33:33    ff:ff:ff:ff:ff:ff   
22:22:22:22:44:44    ff:ff:ff:ff:ff:ff
  •   You can use the run show vlans voice-vlan command to view the configuration information of a voice VLAN.
admin@XorPlus# run show vlans voice-vlan vlan-id 10
Voice Vlan ID:10
Voice Vlan local priority:6
Voice Vlan dscp:63
Voice Vlan aging time:600 minutes
Current voice vlan enabled port mode:
Port       Mode      Tagged    Mac_Address     Status         
-----------------------------------------------------------------------
ge-1/1/1    manual      true    00:11:11:00:00:01   Working        
  •   You can use the run show vlans vlan-id <vlan-id> command to check whether the port has been added to the voice VLAN.
admin@XorPlus# run show vlans vlan-id 10
VLAN ID: 10
VLAN Name: default
Description: CompanyPhone
vlan-interface: 
Routed-interface:
Number of member ports: 1
Untagged port: None
Tagged port: ge-1/1/1


  •   You can use the run show lldp neighbor <interface-name> detail command to view the LLDP information of neighbor device.
admin@XorPlus# run show lldp neighbor ge-1/1/1 detail
Local Port: ge-1/1/1
LLDP info:
Time To Live: 180
 Chassis Id: 192.1.1.1
 Port ID: 189C5DB7E4F4:P1
 Port Description: SW PORT
 System Name: SEP189C5DB7E4F4
 System Description: Cisco IP Phone 7965G,V14,
 System Capability: Bridge, Telephone
 Management Address:
 Default VLAN ID: 0
 Auto Negotiation: Supported, Enabled
 Physical media capabilities: FDX_S_Pause, FDX_B_Pause, 1000base_XFD, 1000base_T
 Media Attachment Unit type: 1000base_T_Full_Duplex
 +Med capabilities: Capabilities, Network Policy, Extended Power via MDI-PD, Inventory
 Med device type: Endpoint Class III
 +MED Network Policy
 Application Type: Voice
 Policy Flags: Known Policy
 Vlan ID: 10
 L2 Priority: 6
 DSCP Value: 63
 +MED Network Policy
 Application Type: Voice Signaling
 Policy Flags: Known Policy
 Vlan ID: 10
 L2 Priority: 0
 DSCP Value: 0
 +MED Extended Power via MDI
 Power Type: PD device
 Power Source: Unknown
 Power Priority: Unknown
 Power Value: 12.0 watts
 +MED Hardware revision: 14
 +MED Firmware revision: tnp65.9-3-1-CR17.bin
 +MED Software revision:
 +MED Serial number: FCH174499U2
 +MED Manufacturer: Cisco Systems, Inc.
 +MED Model name: CP-7965G
 +MED Asset ID:
  •   You can use the run show lldp local_info<interface-name> detail command to view the LLDP information of local device.
admin@XorPlus# run show lldp local_info ge-1/1/1 detail
LLDP Local configuration details
Chassis ID: 70:72:cf:fd:8f:21
System name: XorPlus
System description: PICA8 Inc., Model as4610_30p, PicOS 2.9.1
Interface     LLDP    State
---------- --------- ---------
ge-1/1/1    Enable    tx_rx
 
+Med capabilities: Capabilities, Network Policy, Extended Power via MDI-PD, Inventory
Med device type: Network Connectivity
+MED Network Policy
Application Type: Voice
Policy Flags: Unknown Policy
Vlan ID: 10
L2 Priority: 6
DSCP Value: 63
+MED Network Policy
Application Type: Voice Signaling
Policy Flags: Unknown Policy
Vlan ID: 10
L2 Priority: 0
DSCP Value: 0
+MED Extended Power via MDI
Power Type: PSE device
Power Source: Primary Power Source
Power Priority: Unknown
Power Value: 0.0 watts
+MED Hardware revision: N/A
+MED Firmware revision: 2.9.1/ac36038
+MED Software revision: 2.9.1/ac36038 
+MED Serial number: AF10029779
+MED Manufacturer: Edgecore
+MED Model name: as4610_30p
+MED Asset ID: N/A

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