Figure 25-5 Maximize Bandwidth Usage Example - ZyXEL Communications 10 User Manual

Internet security gateway
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In this case, suppose that all of the classes except for the administration class need more bandwidth.
Each class gets up to its budgeted bandwidth. The administration class only uses 1 Mbps of its
budgeted 2 Mbps.
Sales and Marketing are first to get extra bandwidth because they have the highest priority (6). If
they each require 1.5 Mbps or more of extra bandwidth, the ZyWALL divides the total 3 Mbps
total of unbudgeted and unused bandwidth equally between the sales and marketing departments
(1.5 Mbps extra to each for a total of 3.5 Mbps for each) because they both have the highest
priority level.
R&D requires more bandwidth but only gets its budgeted 2 Mbps because all of the unbudgeted
and unused bandwidth goes to the higher priority sales and marketing classes.
The ZyWALL does not send any traffic that is not defined in the bandwidth filters because all of
the unbudgeted bandwidth goes to the classes that need it.
Bandwidth Management

Figure 25-5 Maximize Bandwidth Usage Example

ZyWALL 10~100 Series Internet Security Gateway
25-7

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