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  DSCP has superseded TOS within the IETF.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 [0-32].
.TP
.BI "--dscp-class " "\fIDiffServ Class\fP"
Match the DiffServ class. This value may be any of the
BE, EF, AFxx or CSx classes.  It will then be converted
into it's according numeric value.
