ZyXEL Prestige 660HW-61 External 91-004-370001 Manual Do Utilizador

Prestige 660H/HW Series User’s Guide

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Chapter 18 Media Bandwidth Management Advanced Setup

you configure child-classes with filters for any classes that you configure without filters. The 
Prestige leaves the bandwidth budget allocated and unused for a class that does not have a 
filter itself or child-classes with filters. View your configured bandwidth classes and child-
classes in the Class Setup screen (see 

 for details).

The total of the configured bandwidth budgets for child-classes cannot exceed the configured 
bandwidth budget speed of the parent class. 

Bandwidth management allows you to define how much bandwidth each class gets; however, 
the actual bandwidth allotted to each class decreases or increases in proportion to actual 
available bandwidth. 

These examples show bandwidth management allotments on a WAN interface that is 
configured for 640Kbps.

The bandwidth classes in the following example are based solely on application. Each 
bandwidth class (VoIP, Web, FTP, E-mail and Video) is allotted 128kbps.

Figure 95   Application-based Bandwidth Management Example

The following example uses bandwidth classes based solely on LAN subnets. Each bandwidth 
class (Subnet A and Subnet B) is allotted 320kbps.