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Chapter 15
Configuring Voice VLAN
Command
Step 3
switchport priority extend
{cos value | trust}
Step 4
end
Step 5
show interfaces interface-id
switchport
Step 6
copy running-config
startup-config
This example shows how to configure a port connected to a Cisco IP Phone to not change the priority of
frames received from the PC or the attached device:
Switch# configure terminal
Enter configuration commands, one per line.
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)# switchport priority extend trust
Switch(config-if)# end
To return the port to its default setting, use the no switchport priority extend interface configuration
command.
Displaying Voice VLAN
To display voice VLAN configuration for an interface, use the show interfaces interface-id switchport
privileged EXEC command.
OL-12247-04
Purpose
Set the priority of data traffic received from the Cisco IP Phone access port:
cos value—Configure the phone to override the priority received from
•
the PC or the attached device with the specified CoS value. The value is
a number from 0 to 7, with 7 as the highest priority. The default priority
is cos 0.
trust—Configure the phone access port to trust the priority received
•
from the PC or the attached device.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
End with CNTL/Z.
Displaying Voice VLAN
15-7
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