ZyXEL Communications P-660H-T1 v3s, Руководство пользователя

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Chapter 4 Tutorials
P-660H-T1v3s User’s Guide
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• The connection with VPI/VCI, 0/35, is dedicated for general data transmission.
Figure 8 Example for Multiple WAN Connections
4.8 Multiple PVCs with QoS
This tutorial is only applicable for an ISP engineer.
An ISP may configure multiple PVCs for seperating different subscriber application
traffic. This helps to record traffic statistics or calculate service charges. In
addition, the ISP can also apply different QoS according to the application
importance and whether the application is time-sensitive or not.
In the following figure, the P-660H-T1v3s is configured to transmit two types of
traffic, VoIP using SIP and general data using 0/33 and 0/35 PVCs respectively.
Because voice traffic is considered to transmit continuously but not for general
data, this tutorial uses Constant Bit Rate (CBR) for VoIP and Unspecified Bit Rate
(UBR) for general data ATM-QoS setting.
This tutorial also dedicates the P-660H-T1v3s LAN port 4 for voice and ports 1~3
for general data traffic.