Chapter 36 Differentiated Services
GS1920v2 Series User’s Guide
320
DiffSe rv Ne two rk 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 228
) 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 228
DiffServ Network
36.2 Ac tiva ting DiffSe rv
Activate DiffServ to apply marking rules or IEEE 802.1p priority mapping on the Switch.
Click
IP Applic a tio n
>
DiffSe rv
in the navigation panel to display the screen as shown.
