The DSCP Policy to assign to packets received for
the specified application. This is an index into
the hpSwitchCosDSCPPolicy table, or the value 255
indicating no DSCP Policy exists. This policy is
associated with an 802.1p priority value, which
will be inserted in the 802.1Q tag and will cause
the packet to be placed in the appropriate outbound
port queue. The DSCP policy value (a
Differentiated Services codepoint) will also be
written into the Differentiated-Services field of
the IP Type-of-Service byte. The value of 255 is
used to indicate No Override.