This module matches the 6 bit DSCP field within the TOS field in the
IP header.  DSCP has superseded TOS within the IETF.
.TP
.BI "--dscp " "value"
Match against a numeric (decimal or hex) value [0-63].
.TP
\fB--dscp-class\fP \fIclass\fP
Match the DiffServ class. This value may be any of the
BE, EF, AFxx or CSx classes.  It will then be converted
into its according numeric value.