user manual

to send data packets from the device attached to the access port on the Cisco IP Phone. The PC can generate
packets with an assigned CoS value. You can configure the phone to not change (trust) or to override (not
trust) the priority of frames arriving on the phone port from connected devices.
Follow these steps to set the priority of data traffic received from the non-voice port on the Cisco IP Phone:
SUMMARY STEPS
1.
configure terminal
2.
interface interface-id
3.
switchport priority extend {cos value | trust}
4.
end
5.
show interfaces interface-id switchport
6.
copy running-config startup-config
DETAILED STEPS
PurposeCommand or Action
Enters the global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 1
Specifies the interface connected to the Cisco IP Phone, and enters
interface configuration mode.
interface interface-id
Example:
Switch(config)# interface
Step 2
gigabitethernet1/0/1
Sets the priority of data traffic received from the Cisco IP Phone
access port:
switchport priority extend {cos value | trust}
Example:
Switch(config-if)# switchport priority
Step 3
• cos value—Configures 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.
extend trust
• trust—Configures the phone access port to trust the priority
received from the PC or the attached device.
To return the port to its default setting, use the no
switchport priority extend interface configuration
command.
Note
Catalyst 2960-XR Switch VLAN Configuration Guide, Cisco IOS Release 15.0(2)EX1
156 OL-29440-01
Configuring Voice VLANs
Configuring the Priority of Incoming Data Frames