Chapter 17
| VLAN Commands
Configuring Voice VLANs
– 421 –
Configuring Voice VLANs
The switch allows you to specify a Voice VLAN for the network and set a CoS priority
for the VoIP traffic. VoIP traffic can be detected on switch ports by using the source
MAC address of packets, or by using LLDP (IEEE 802.1AB) to discover connected
VoIP devices. When VoIP traffic is detected on a configured port, the switch
automatically assigns the port to the Voice VLAN. Alternatively, switch ports can be
manually configured.
voice vlan
This command enables VoIP traffic detection and defines the Voice VLAN ID. Use
the
no
form to disable the Voice VLAN.
Syntax
voice vlan
voice-vlan-id
no voice vlan
voice-vlan-id
- Specifies the voice VLAN ID. (Range: 1-4093)
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
◆
When IP telephony is deployed in an enterprise network, it is recommended to
isolate the Voice over IP (VoIP) network traffic from other data traffic. Traffic
isolation helps prevent excessive packet delays, packet loss, and jitter, which
results in higher voice quality. This is best achieved by assigning all VoIP traffic
to a single VLAN.
Table 92: Voice VLAN Commands
Command
Function
Mode
voice vlan
Defines the Voice VLAN ID
GC
voice vlan aging
Configures the aging time for Voice VLAN ports
GC
voice vlan mac-address
Configures VoIP device MAC addresses
GC
switchport voice vlan
Sets the Voice VLAN port mode
IC
switchport voice vlan
priority
Sets the VoIP traffic priority for ports
IC
switchport voice vlan rule
Sets the automatic VoIP traffic detection method for ports IC
switchport voice vlan
security
Enables Voice VLAN security on ports
IC
show voice vlan
Displays Voice VLAN settings
PE
Summary of Contents for EX-3524
Page 2: ......
Page 28: ...Figures 28 ...
Page 34: ...Section I Getting Started 34 ...
Page 58: ...Chapter 1 Initial Switch Configuration Setting the System Clock 58 ...
Page 72: ...Chapter 2 Using the Command Line Interface CLI Command Groups 72 ...
Page 156: ...Chapter 5 SNMP Commands Notification Log Commands 156 ...
Page 164: ...Chapter 6 Remote Monitoring Commands 164 ...
Page 218: ...Chapter 7 Authentication Commands Management IP Filter 218 ...
Page 268: ...Chapter 8 General Security Measures Port based Traffic Segmentation 268 ...
Page 292: ...Chapter 9 Access Control Lists ACL Information 292 ...
Page 312: ...Chapter 10 Interface Commands Power Savings 312 ...
Page 324: ...Chapter 11 Link Aggregation Commands Trunk Status Display Commands 324 ...
Page 366: ...Chapter 15 Address Table Commands 366 ...
Page 428: ...Chapter 17 VLAN Commands Configuring Voice VLANs 428 ...
Page 572: ...Chapter 25 IP Interface Commands IPv6 Interface 572 ...
Page 578: ...Section I Appendices 578 ...