Example: Unused And Unbudgeted Bandwidth; Reserving Bandwidth For Other Applications; Table 88 Example: Priority-Based Allotment Of Unused And Unbudgeted Bandwidth - ZyXEL Communications P-870HW-I Series User Manual

P-870HW-I1 User's Guide

15.1.3 Example: Unused and Unbudgeted Bandwidth

The following table shows the priorities of applications and the amount of bandwidth that each
application gets.

Table 88 Example: Priority-based Allotment of Unused and Unbudgeted Bandwidth

BANDWIDTH CLASSES, PRIORITIES AND ALLOTMENTS
Root Class: 10240 kbps
Suppose that all of the applications except for administration need more bandwidth.
• Each application gets up to its budgeted bandwidth. The administration application only
uses 1024 kbps of its budgeted 2048 kbps.
• The sales and marketing are first to get extra bandwidth because they have the highest
priority. If they each require 1536 kbps or more of extra bandwidth, the ZyXEL Device
divides the total 3072 kbps total of unbudgeted and unused bandwidth equally between
the sales and marketing applications (1536 kbps extra to each for a total of 3584 kbps for
each) because they both have the highest priority level.
• Research requires more bandwidth but only gets its budgeted 2048 kbps because all of the
unbudgeted and unused bandwidth goes to the higher priority sales and marketing
applications.

15.1.4 Reserving Bandwidth for Other Applications

Do the following three steps to configure the ZyXEL Device to allow bandwidth for traffic
that is not defined in a bandwidth filter.
1 Leave some of the interface's bandwidth unbudgeted.
2 Do not enable Use All Managed Bandwidth in the bandwidth filters.
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Administration: Low Priority, 1024 kbps
Sales: High Priority, 3584 kbps
Marketing: High Priority, 3584 kbps
Research: Medium Priority, 2048 kbps
Chapter 15 Bandwidth MGMT