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DiffServ for VoIP Configuration Example 131

18 Differentiated Services

DiffServ for VoIP Configuration Example

One of the most valuable uses of DiffServ is to support Voice over IP (VoIP). VoIP traffic is

inherently time-sensitive: for a network to provide acceptable service, a guaranteed

transmission rate is vital. This example shows one way to provide the necessary quality of

service: how to set up a class for UDP traffic, have that traffic marked on the inbound side, and

then expedite the traffic on the outbound side. The configuration script is for Router 1 in the

accompanying diagram: a similar script should be applied to Router 2.

Figure 84. DiffServ VoIP Example Network Diagram

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D-Link DWS-3000 Bedienungsanleitung Seite 131