Configuring Ports To Carry Voice Traffic In 802.1Q Frames; Configuring Ports To Carry Voice Traffic In 802.1P Priority Tagged Frames - Cisco Catalyst 2950 Software Configuration Manual

Configuring Voice VLAN

Configuring Ports to Carry Voice Traffic in 802.1Q Frames

Beginning in privileged EXEC mode, follow these steps to configure a port to carry voice traffic in
802.1Q frames for a specific VLAN:
Command
Step 1 configure terminal
Step 2 interface interface-id
Step 3
switchport voice vlan vlan-id
Step 4 end
Step 5 show interfaces interface-id
switchport
Step 6 copy running-config startup-config (Optional) Save your entries in the configuration file.
To remove voice VLAN, use the no switchport voice vlan interface configuration command or the
switchport voice vlan none interface configuration command.

Configuring Ports to Carry Voice Traffic in 802.1P Priority Tagged Frames

Beginning in privileged EXEC mode, follow these steps to configure a port to instruct the IP phone to
give voice traffic a higher priority and to forward all traffic through the native VLAN.
Command
Step 1
configure terminal
Step 2 interface interface-id
Step 3 switchport voice vlan dot1p
Step 4 end
Step 5
show interfaces interface-id
switchport
Step 6
copy running-config startup-config (Optional) Save your entries in the configuration file.
To return the port to its default setting, use the no switchport voice vlan interface configuration
command.
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Purpose
Enter global configuration mode.
Enter interface configuration mode, and enter the port to be configured.
Instruct the Cisco IP phone to forward all voice traffic through the specified
VLAN. By default, the Cisco IP phone forwards the voice traffic with an
802.1Q priority of 5.
Valid VLAN IDs are from 1 to 4094 when the enhanced software image is
installed and 1 to 1001 when the standard software image is installed. Do not
enter leading zeros.
Return to privileged EXEC mode.
Verify your voice VLAN entries.
Purpose
Enter global configuration mode.
Enter interface configuration mode, and enter the port to be configured.
Instruct the switch port to use 802.1P priority tagging for voice traffic and to
use the default native VLAN to carry all traffic. By default, the Cisco IP
phone forwards the voice traffic with an 802.1P priority of 5.
Return to privileged EXEC mode.
Verify your voice VLAN entries.
Chapter 15 Configuring Voice VLAN
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