The EUSM can be set to mark egress packets with a new DSCP.
The user can set to remark egress DSCP in one of the
following modes: AF or CS Remarking only applies to IPv4 or
IPv6 packets. The user can define which type of incoming
(ingress )DSCP frames will be remarked.Selection includes
the combination of EF,AF,CS,Zero DSCP and all others.