Zyxel-communications 660HW Series Manual do Utilizador descarregar pdf (Página 200)

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101

Prestige 660H/HW Series User’s Guide

199 Chapter 18 Media Bandwidth Management Advanced Setup

Figure 103 Maximize Bandwidth Usage Example

18.7 Bandwidth Borrowing

Bandwidth borrowing allows a child-class to borrow unused bandwidth from its parent class,

whereas maximize bandwidth usage allows bandwidth classes to borrow any unused or

unbudgeted bandwidth on the whole interface.

Enable bandwidth borrowing on a child-class to allow the child-class to use its parent class’s

unused bandwidth. A parent class’s unused bandwidth is given to the highest priority child-

class first. The child-class can also borrow bandwidth from a higher parent class (grandparent

class) if the child-class’s parent class is also configured to borrow bandwidth from its parent

class. This can go on for as many levels as are configured to borrow bandwidth from their

parent class (see

Section 18.7.1 on page 199).

The total of the bandwidth allotments for child-classes cannot exceed the bandwidth allotment

of their parent class. The Prestige uses the scheduler to divide a parent class’s unused

bandwidth among the child-classes.

18.7.1 Bandwidth Borrowing Example

Here is an example of bandwidth management with classes configured for bandwidth

borrowing. The classes are set up based on departments and individuals within certain

departments.

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