RFC2474 IP Diffserv in IPv4

You can use RFC 2474 IP Differentiated Services (Diffserv) in IPv4 to assign Differentiated Services Code Point (DSCP) values to IPv4 packet headers, enabling scalable and flexible Quality of Service across your network. By marking packets with specific DSCP values you classify and manage traffic so that critical applications receive appropriate service levels. Network devices recognize these markings to prioritize, shape, and enforce traffic policies based on your organizational requirements. This feature helps you improve network performance and ensure efficient traffic management through differentiated handling of various traffic classes.