The value of tmnxGsmpGrpNbrPrioMarkDscp specifies the DSCP to be used
while remarking the in profile packets when the in-profile
remarking type, tmnxGsmpGrpNbrPrioMarkType, is specified to be
'dscp'.
If the value of tmnxGsmpGrpNbrPrioMarkType is changed from 'dscp' to
something else, the value of tmnxGsmpGrpNbrPrioMarkDscp is set to its
default value.