Chapter 21
| VLAN Commands
Configuring Voice VLANs
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show mac-vlan This command displays MAC address-to-VLAN assignments.
Command Mode
Privileged Exec
Command Usage
Use this command to display MAC address-to-VLAN mappings.
Example
The following example displays all configured MAC address-based VLANs.
Console#show mac-vlan
MAC Address VLAN ID Priority
----------------- -------- --------
00-00-00-11-22-33 10 0
Console#
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.
Table 115: 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
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