Zyxel-communications P-660H-T Series Manual de usuario descargar pdf (Pagina 188)

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P-660H/HW-T Series User’ Guide

187 Chapter 16 Media Bandwidth Management Advanced Setup

Figure 92 Maximize Bandwidth Usage Example

16.7 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 that has bandwidth borrowing configured, first.

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.

16.7.1 Maximize Bandwidth Usage With Bandwidth Borrowing

If you configure both maximize bandwidth usage (on the interface) and bandwidth borrowing

(on individual child-classes), the Prestige functions as follows.

1 The Prestige sends traffic according to each bandwidth class’s bandwidth budget.

2 The Prestige assigns a parent class’s unused bandwidth to its child-classes that have more

traffic than their budgets and have bandwidth borrowing enabled. The Prestige gives

priority to bandwidth child-classes of higher priority and treats bandwidth classes of the

same priority equally.

3 The Prestige assigns any remaining unused or unbudgeted bandwidth on the interface to

any bandwidth class that requires it. The Prestige gives priority to bandwidth classes of

higher priority and treats bandwidth classes of the same level equally.

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