Example for Configuring a VLAN ID-based Voice VLAN (IP Phones Send Tagged Voice Packets)

Networking Requirements

As shown in Figure 1, the switch connects to IP phones and a PC. The switch uses VLAN 2 to transmit voice packets and VLAN 3 to transmit data packets. PC A connects to IP phone A and they connect to the switch, and IP phone B separately connects to the switch. IP phones can obtain voice VLAN information through LLDP and send tagged voice packets. Users require high quality of the VoIP service; therefore, voice data flows must be transmitted with a high priority to ensure the call quality. In addition, the administrator manages many IP phones and requires simplified configurations.

Figure 1 Networking for configuring a VLAN ID-based voice VLAN

Configuration Roadmap

The configuration roadmap is as follows:

Create VLANs on the switch and add interfaces to VLANs to implement Layer 2 connectivity.
Enable LLDP so that IP phones can obtain voice VLAN information through LLDP.
Configure VLAN 2 as the voice VLAN and configure the interface to allow voice packets to pass through. Configure a VLAN ID-based voice VLAN, which relieves you from configuring OUIs.

Procedure

Configure VLANs and interfaces on the Switch.

# Create VLANs.

<HUAWEI> system-view
[HUAWEI] sysname Switch
[Switch] vlan batch 2 3

# Configure VLANs allowed by GE0/0/1.

[Switch] interface gigabitethernet 0/0/1
[Switch-GigabitEthernet0/0/1] port link-type hybrid
[Switch-GigabitEthernet0/0/1] port hybrid pvid vlan 3
[Switch-GigabitEthernet0/0/1] port hybrid untagged vlan 3
[Switch-GigabitEthernet0/0/1] port hybrid tagged vlan 2
[Switch-GigabitEthernet0/0/1] quit
[Switch] interface gigabitethernet 0/0/2
[Switch-GigabitEthernet0/0/2] port link-type hybrid
[Switch-GigabitEthernet0/0/2] port hybrid tagged vlan 2
[Switch-GigabitEthernet0/0/2] quit

Enable LLDP.
```
[Switch] lldp enable
```

# Enable the voice VLAN function on GE0/0/1. The configuration of GE0/0/2 is similar to the configuration of GE0/0/1, and is not mentioned here.

[Switch] interface gigabitethernet 0/0/1
[Switch-GigabitEthernet0/0/1] voice-vlan 2 enable
[Switch-GigabitEthernet0/0/1] voice-vlan remark-mode vlan
[Switch-GigabitEthernet0/0/1] quit

Verify the configuration.

Run the display voice-vlan 2 status command to check the voice VLAN configuration.

[Switch] display voice-vlan 2 status
Voice VLAN Configurations: 
-----------------------------------------------------------
Voice VLAN ID            : 2
Voice VLAN status        : Enable
Voice VLAN 8021p remark  : 6
Voice VLAN dscp remark   : 46
-----------------------------------------------------------
Port Information: 
-------------------------------------------------------------------------------
Port                       Add-Mode  Security-Mode  Legacy  PribyVLAN  Untag
-------------------------------------------------------------------------------
GigabitEthernet0/0/2       Manual    Normal         Disable Enable     Disable
GigabitEthernet0/0/1       Manual    Normal         Disable Enable     Disable

Configuration Files

Switch configuration file

#
sysname Switch
#
vlan batch 2 to 3
#
lldp enable
#
interface GigabitEthernet0/0/1
 port link-type hybrid
 voice-vlan 2 enable
 port hybrid pvid vlan 3
 port hybrid tagged vlan 2
 port hybrid untagged vlan 3
#
interface GigabitEthernet0/0/2
 port link-type hybrid
 voice-vlan 2 enable
 port hybrid tagged vlan 2
#
return