On the Trunk Settings page, you can specify the default port priority for each port in a switch trunk. All packets entering the switch that are untagged (do not

already have a priority value) are tagged with the specified default port priority and then sorted into the appropriate priority queue at the output port.

For each trunk listed in the Trunk column, you can assign the default port priority (from 0 to 7) to untagged frames received on any port in the trunk. The

default setting is 0.

CLI Commands

The following table summarizes the equivalent CLI command for items in the Class of Service/Trunk Settings page.

Command

switchport priority default default-

priority-id

Example

Console(config)#interface port-channel 2

Console (config-if)#switchport priority default 5

Traffic Classes

On the Traffic Classes page, you can configure the mapping of frame priority tags to each port's four CoS priority queues.

Each IEEE 802.1p priority level (from 0 to 7) listed in the Priority column can be mapped to one of the switch's four traffic class queues (from 0 to 3). The

number 0 represents a low priority and higher values represent higher priorities.

Usage

Sets a priority for the incoming untagged frames or the priority of frames received by the device connected to the

specified interface

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