Switchport Priority Extend - Cisco Catalyst 2950 Command Reference Manual

switchport priority extend

switchport priority extend
Use the switchport priority extend interface configuration command to set a port priority for the
incoming untagged frames or the priority of frames received by the IP phone connected to the specified
port. Use the no form of this command to return to the default setting.
Syntax Description
cos value
trust
Defaults
The port priority is not set, and the default value for untagged frames received on the port is 0.
The IP phone connected to the port is set to not trust the priority of incoming traffic and overrides the
priority with the CoS value of 0.
Command Modes
Interface configuration
Command History Release
12.1(9)EA1
12.1(13)EA1
Usage Guidelines In Cisco IOS Release 12.1(13)EA1 or later, the trust keyword replaces the none keyword. To instruct
the IP Phone to not trust the priority, you can use the no switchport priority extend or the switchport
priority extend cos 0 interface configuration command. In software releases earlier than Cisco IOS
Release 12.1(13)EA1, use the switchport prioirity extend none interface configuration command.
Examples
This example shows how to configure the IP phone connected to the specified port to trust the received
IEEE 802.1p priority:
Switch(config-if)# switchport priority extend trust
You can verify your settings by entering the show interfaces interface-id switchport privileged EXEC
command.
Catalyst 2950 and Catalyst 2955 Switch Command Reference
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switchport priority extend {cos value | trust}
no switchport priority extend
Set the IP phone port to override the priority received from PC or the attached
device.
The class of service (CoS) range is 0 to 7. Seven is the highest priority. The default
is 0.
Set the IP phone port to trust the priority received from PC or the attached device.
Modification
This command was introduced.
The none keyword was removed and replaced by the trust keyword.
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
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