GS2220 Series User’s Guide
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priorities of forwarding. Resources can then be allocated according to the DSCP values and the
configured policies.
DiffSe rv Ne twork Exa m ple
The following figure depicts a DiffServ network consisting of a group of directly connected DiffServ-
compliant network devices. The boundary node (A in
Figure 278) in a DiffServ network classifies (marks
with a DSCP value) the incoming packets into different traffic flows (Pla tinum , G o ld, Silve r, Bro nze )
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 Bro nze traffic flow are more likely to be dropped when congestion
occurs than the packets in the Pla tinum traffic flow as they move across the DiffServ network.
Fig ure 278 DiffServ Network
43.2 Ac tiva ting DiffSe rv
Activate DiffServ to apply marking rules or IEEE 802.1p priority mapping on the selected ports.
Click IP Applic a tio n > DiffSe rv in the navigation panel to display the screen as shown.
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