Prestige 2602H/HW Series User’s Guide

Figure 127 Maximize Bandwidth Usage Example

21.7 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 21.7.1 on page 270).

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.

21.7.1 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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Chapter 21 Media Bandwidth Management Advanced Setup