Configuring Layer 3 trusted or untrusted ports

Configure a port as trusted or untrusted to determine the Layer 3 QoS actions the switch performs. A trusted port honors incoming DSCP markings. An untrusted port overrides DSCP markings. The default is trusted.

Procedure

  1. In the navigation tree, expand the following folders: Configuration > QOS.
  2. Click Port QoS Config.
  3. In the row for the port, double-click the cell in the Layer3Trust column.
  4. Select core (trusted) or access (untrusted) as the port setting.
  5. Click Apply.