Table of Contents

Chapter 1 Voice VLAN Configuration. 1-1

1.1 Voice VLAN Overview. 1-1

1.1.1 Configuring Operation Mode for Voice VLAN. 1-1

1.1.2 Supporting Information of Voice VLAN on Various Ports. 1-2

1.2 Configuring Voice VLAN. 1-4

1.2.1 Configuration Prerequisites. 1-4

1.2.2 Configuring a Voice VLAN to Operate in Automatic Mode. 1-4

1.2.3 Configuring a Voice VLAN to Operate in Manual Mode. 1-6

1.3 Displaying Voice VLAN. 1-8

1.4 Voice VLAN Configuration Example. 1-8

1.4.1 Voice VLAN Configuration Example (Automatic Mode) 1-8

1.4.2 Voice VLAN Configuration Example (Manual Mode) 1-9

 

Chapter 1  Voice VLAN Configuration

1.1  Voice VLAN Overview

Voice VLANs are VLANs configured specially for voice traffic. By adding the ports with voice devices attached to voice VLANs, you can perform QoS-related configuration for voice data, ensuring the transmission priority of voice traffic and voice quality.

S3600 series Ethernet switches determine whether a received packet is a voice packet by checking its source MAC address. If the source MAC addresses of packets comply with the organizationally unique identifier (OUI) addresses configured by the system, the packets are determined as voice packets and transmitted in voice VLAN.

You can configure an OUI address for voice packets or specify to use the default OUI address.

 

 

The following table shows the five default OUI addresses of a switch.

Table 1-1 Default OUI addresses preset by the switch

Number	OUI Address	Vendor
1	0003-6b00-0000	Cisco phone
2	000f-e200-0000	H3C Aolynk phone
3	00d0-1e00-0000	Pingtel phone
4	00e0-7500-0000	Polycom phone
5	00e0-bb00-0000	3Com phone

 

1.1.1  Configuring Operation Mode for Voice VLAN

A voice VLAN can operate in two modes: automatic and manual. You can configure the operation mode for the voice VLAN according to data traffic passing through a port.

I. Processing mode of untagged packets sent by IP voice devices

l           Automatic mode: an S3600 Ethernet switch automatically adds a port connecting an IP voice device to the voice VLAN by learning the source MAC address in the untagged packet sent by the IP voice device when it is powered on. When the aging time of a port expires, voice ports on which the OUI addresses are not updated (no voice traffic passes) will be automatically removed from the voice VLAN; voice ports can not be added into or removed from the voice VLAN through manual configurations.

l           Manual mode: add a voice port to the voice VLAN or remove a voice port from the voice VLAN through manual configuration.

II. Processing mode of tagged packets sent by IP voice devices

For the tagged packets sent by IP voice devices, they are processed in the same way in either of the above two modes: forwarded within corresponding VLAN according to their VLAN ID in the tags.

 

 

1.1.2  Supporting Information of Voice VLAN on Various Ports

Voice VLAN packets can be forwarded by both trunk and hybrid ports in voice VLAN. You can enable a trunk or hybrid port belonging to other VLANs to forward voice and service packets simultaneously by enabling the voice VLAN.

As multiple types of IP voice devices exist, you need to match port mode with types of voice traffic sent by IP voice devices, as listed in Table 1-2.

Table 1-2 Matching relationship between port modes and voice traffic types

Port voice VLAN mode	Voice traffic type	Port type	Supported or not
Automatic mode	Tagged voice traffic	Access	Not supported
		Trunk	Supported Make sure the default VLAN of the port exists and is not a voice VLAN. And the access port permits the traffic of the default VLAN.
		Hybrid	Supported Make sure the default VLAN of the port exists and is not a voice VLAN. The default VLAN must be in the list of the tagged VLANs whose traffic is permitted by the access port.
	Untagged voice traffic	Access	Not supported, because the default VLAN of the port must be a voice VLAN and the access port is in the voice VLAN. This can be done by adding the port to the voice VLAN manually.
		Trunk
		Hybrid
Manual mode	Tag voice traffic	Access	Not supported
		Trunk	Supported Make sure the default VLAN of the port exists and is not a voice VLAN. And the access port permits the traffic of the default VLAN.
		Hybrid	Supported Make sure the default VLAN of the port exists and is in the list of the tagged VLANs whose traffic is permitted by the access port.
	Untag voice traffic	Access	Supported Make sure the default VLAN of the port is a voice VLAN.
		Trunk	Supported Make sure the default VLAN of the port is a voice VLAN and the port permits the traffic of the VLAN.
		Hybrid	Supported Make sure the default VLAN of the port is a voice VLAN and is in the list of untagged VLANs whose traffic is permitted by the port.

 

 

1.2  Configuring Voice VLAN

1.2.1  Configuration Prerequisites

l           Create the corresponding VLAN before configuring a voice VLAN.

l           VLAN 1 is the default VLAN and do not need to be created. And VLAN 1 does not support voice VLAN .

1.2.2  Configuring a Voice VLAN to Operate in Automatic Mode

Table 1-3 Configure a voice VLAN to operate in automatic mode

Operation	Command	Description
Enter system view	system-view	—
Enter Ethernet port view	interface interface-type interface-number	Required
Enable the voice VLAN function on a port	voice vlan enable	Required By default, voice VLAN is disabled.
Set the voice VLAN operation mode on a port to automatic.	voice vlan mode auto	Optional The default voice VLAN operation mode on a port is automatic.
Quit to system view	quit	—
Set an OUI address that can be identified by the voice VLAN	voice vlan mac-address oui mask oui-mask [ description text ]	Optional By default, the switch determines the voice traffic according to the default OUI address.
Enable the voice VLAN security mode	voice vlan security enable	Optional By default, the voice VLAN security mode is enabled.
Set the aging time for the voice VLAN	voice vlan aging minutes	Optional The default aging time is 1,440 minutes.
Enable the voice VLAN function globally	voice vlan vlan-id enable	Required

 

 

 

1.2.3  Configuring a Voice VLAN to Operate in Manual Mode

Table 1-4 Configure a voice VLAN to operate in manual mode

Operation			Command	Description
Enter system view			system-view	—
Enter port view			interface interface-type interface-number	Required
Enable voice VLAN on a port			voice vlan enable	Required By default, voice VLAN is disabled on a port.
Set voice VLAN operation mode on a port to manual			undo voice vlan mode auto	Required The default voice VLAN operation mode on a port is automatic.
Quit to system view			quit	—
Add a port in manual mode to the voice VLAN	Access port	Enter VLAN view	vlan vlan-id	Required
		Add the port to the VLAN	port interface-list
	Trunk or Hybrid port	Enter port view	interface interface-type interface-num
		Add the port to the VLAN	port trunk permit vlan vlan-id port hybrid vlan vlan-id { tagged | untagged }
		Configure the voice VLAN to be the default VLAN of the port	port trunk pvid vlan vlan-id port hybrid pvid vlan vlan-id	Optional Refer to Table 1-2 to determine whether or not this operation is needed.
Quit to system view			quit	—
Set an OUI address that can be identified by the voice VLAN			voice vlan mac-address oui mask oui-mask [ description text ]	Optional Without this address, the default OUI address is used.
Enable the voice VLAN security mode			voice vlan security enable	Optional By default, the voice VLAN security mode is enabled.
Set the aging time for a voice VLAN			voice vlan aging minutes	Optional The default aging time is 1,440 minutes.
Enable the voice VLAN function globally			voice vlan vlan-id enable	Required

 

 

 

1.3  Displaying Voice VLAN

After the above configurations, you can execute the display command in any view to view the running status and verify the configuration effect.

Table 1-5 Display configurations of a Voice VLAN

Operation	Command	Description
Display the information about ports on which voice VLAN configuration fails	display voice vlan error-info	You can execute the display command in any view.
Display the voice VLAN configuration status	display voice vlan status
Display the currently valid OUI addresses	display voice vlan oui
Display the ports operating in the current voice VLAN	display vlan vlan-id

 

1.4  Voice VLAN Configuration Example

1.4.1  Voice VLAN Configuration Example (Automatic Mode)

I. Network requirements

l           Create VLAN 2 and configure it as a voice VLAN.

l           Configure port Ethernet1/0/1 as a Trunk port, with VLAN 6 as the default VLAN and permits the traffic of the default VLAN.

l           Ethernet1/0/1 can be added to/removed from the voice VLAN automatically according to the data stream that reaches the port.

II. Configuration procedure

# Create VLAN 2.

<H3C> system-view

[H3C] vlan 2

# Configure Ethernet1/0/1 port to be a Trunk port, with VLAN 6 as the default VLAN and permits the traffic of the default VLAN.

[H3C] interface Ethernet 1/0/1

[H3C-Ethernet1/0/1] port link-type trunk

[H3C-Ethernet1/0/1] port trunk pvid vlan 6

[H3C-Ethernet1/0/1] port trunk permit vlan 6

# Enable the voice VLAN function on the port and configure its voice VLAN operation mode to automatic.

[H3C-Ethernet1/0/1] voice vlan enable

[H3C-Ethernet1/0/1] voice vlan mode auto

# Enable the voice VLAN function globally.

[H3C-Ethernet1/0/1] quit

[H3C] voice vlan 2 enable

1.4.2  Voice VLAN Configuration Example (Manual Mode)

I. Network requirements

l           Create VLAN 3 and configure it as a voice VLAN.

l           Configure Ethernet1/0/1 port as a Trunk port for it to be added to/removed from the voice VLAN manually.

l           Configure the OUI address to be 0011-2200-0000, with the description string being “test”.

II. Configuration procedure

# Create VLAN 3.

<H3C> system-view

[H3C] vlan 3

[H3C-vlan3] quit

# Configure Ethernet1/0/3 port to be a Trunk port and add it to VLAN 3.

[H3C] interface Ethernet 1/0/3

[H3C-Ethernet1/0/3] port link-type trunk

[H3C-Ethernet1/0/3] port trunk permit vlan 3

# Enable the voice VLAN function on the port and configure its voice VLAN operation mode to manual.

[H3C-Ethernet1/0/3] voice vlan enable

[H3C-Ethernet1/0/3] undo voice vlan mode auto

[H3C-Ethernet1/0/3] quit

# Specify an OUI address.

[H3C] voice vlan mac-address 0011-2200-0000 mask ffff-ff00-0000 description test

# Enable the voice VLAN function globally.

[H3C] voice vlan 3 enable

# Display voice VLAN-related configurations.

[H3C] display voice vlan status

Voice Vlan status: ENABLE

Voice Vlan ID: 3

Voice Vlan security mode: Security

Voice Vlan aging time: 1440 minutes

Current voice vlan enabled port mode:

PORT                     MODE

----------------------------------------

Ethernet1/0/3            MANUAL

# Remove Ethernet1/0/3 port from the voice VLAN.

[H3C] interface Ethernet 1/0/3

[H3C-Ethernet1/0/3] undo port trunk permit vlan 3