ZyXEL MES-3528 User Guide - Page 260

Chapter 30 Differentiated Services kinds of traffic can be marked for different priorities of forwarding. Resources can then be allocated according to the DSCP values and the configured policies. 30.1.2 DiffServ Network Example The following figure depicts a DiffServ network consisting of a group of directly connected DiffServ-compliant network devices. The boundary node (A in Figure 145) in a DiffServ network classifies (marks with a DSCP value) the incoming packets into different traffic flows (Platinum, Gold, Silver, Bronze) based on the configured marking rules. A network administrator can then apply various traffic policies to the traffic flows. An example traffic policy, is to give higher drop precedence to one traffic flow over others. In our example, packets in the Bronze traffic flow are more likely to be dropped when congestion occurs than the packets in the Platinum traffic flow as they move across the DiffServ network. Figure 145 DiffServ Network A PGS B P - Platinum G - Gold S - Silver B - Bronze SGP P S B B S GP P 30.2 Activating DiffServ Activate DiffServ to apply marking rules or IEEE 802.1p priority mapping on the Switch. 260 MES-3528 User's Guide