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