Effects on 802.1p Examination
You can turn off 802.1p examination.
When stacking is enabled, the examination remains turned on for priority 6. However, the examination happens at a lower precedence than that of all other traffic groupings.
The mapping you have configured for priority 6 remains in effect, and changes accordingly if you subsequently change the mapping.
When stacking is not enabled, all 802.1p examination is disabled when the feature is turned off.