Cisco Systems 3130 User Manual

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Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
OL-13270-01
Chapter 14      Configuring Voice VLAN
Displaying Voice VLAN
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.  End with CNTL/Z.
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. 
Step 3
switchport priority extend 
{cos value | trust}
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.
Step 4
end
Return to privileged EXEC mode.
Step 5
show interfaces interface-id 
switchport
Verify your entries.
Step 6
copy running-config 
startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose