ZyXEL Communications ES-2024 Series, Руководство пользователя, Страница: 192 / 282

Chapter 26 Differentiated Services
ES-2024 Series User’s Guide
192
26.1.2 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 110 ) 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 110 DiffServ Network
26.2 Activating DiffServ
Activate DiffServ to apply marking rules or IEEE 802.1p priority mapping on the selected
port(s).
Click
IP Application > DiffServ in the navigation panel to display the screen as shown.