Do the following three steps to configure the Prestige to allow bandwidth for traffic that is not defined in a bandwidth filter.
1Leave some of the interface’s bandwidth unbudgeted.
2Do not enable the interface’s Maximize Bandwidth Usage option.
3Do not enable bandwidth borrowing on the
Here is an example of a Prestige that has maximize bandwidth usage enabled on an interface. The following table shows each bandwidth class’s bandwidth budget. The classes are set up based on subnets. The interface is set to 10240 kbps. Each subnet is allocated 2048 kbps. The unbudgeted 2048 kbps allows traffic not defined in any of the bandwidth filters to go out when you do not select the maximize bandwidth option.
Table 77 Maximize Bandwidth Usage Example
BANDWIDTH CLASSES AND ALLOTMENTS
Root Class: 10240 kbps Administration: 2048 kbps
Sales: 2048 kbps
Marketing: 2048 kbps
Research: 2048 kbps
The Prestige divides up the unbudgeted 2048 kbps among the classes that require more bandwidth. If the administration department only uses 1024 kbps of the budgeted 2048 kbps, the Prestige also divides the remaining 1024 kbps among the classes that require more bandwidth. Therefore, the Prestige divides a total of 3072 kbps of unbudgeted and unused bandwidth among the classes that require more bandwidth.
19.8.2.1 Priority-based Allotment of Unused and Unbudgeted Bandwidth
The following table shows the priorities of the bandwidth classes and the amount of bandwidth that each class gets.
Table 78
BANDWIDTH CLASSES, PRIORITIES AND ALLOTMENTS
Root Class: 10240 kbps Administration: Priority 4, 1024 kbps
Sales: Priority 6, 3584 kbps
Marketing: Priority 6, 3584 kbps
Research: Priority 5, 2048 kbps
Suppose that all of the classes except for the administration class need more bandwidth.
201 | Chapter 19 Bandwidth Management |