By default, switches that support the enabling and disabling of this feature use the 802.1p value in the S-tag to direct the packet to the queue on the egress port.
Note
This feature is supported and configurable only on the platforms listed for this feature in the license tables in the Switch Engine v33.1.1 Licensing Guide document.Note
See Quality of Service for information on configuring and displaying the current 802.1p and DiffServ configuration for the S-tag 802.1p value. To enable dot1p examination for inner-tag, dot1p examination for outer-tag must be disabled using the command disable dot1p examination ports [all | port_list]