This feature examines the 802.1p value or Diffserv code point in a VMAN (PBN) S-tag and uses that value to direct the packet to the appropriate queue on the egress port.
Note
This feature is supported only on the platforms listed for this feature in the license tables in the Switch Engine v33.1.1 Licensing Guide document.On some systems you can configure this feature to examine the values in the C-tag or the S-tag. For more information, see the list in the Switch Engine v33.1.1 Licensing Guide document.. For instructions on configuring this feature, see Selecting the Tag used for Egress Queue Selection.