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Chapter 20 Bandwidth Management
ZyWALL 2WG User’s Guide
421
Figure 260 ADVANCED > BW MGMT > Class Setup > Add Sub-Class
The following table describes the labels in this screen.
Table 133 ADVANCED > BW MGMT > Class Setup > Add Sub-Class
LABEL DESCRIPTION
Class Configuration
Class Name Use the auto-generated name or enter a descriptive name of up to 20
alphanumeric characters, including spaces.
Bandwidth Budget
(kbps)
Specify the maximum bandwidth allowed for the class in kbps. The
recommendation is a setting between 20 kbps and 20000 kbps for an individual
class.
Priority Enter a number between 0 and 7 to set the priority of this class. The higher the
number, the higher the priority. The default setting is 3.
Borrow bandwidth
from parent class
Select this option to allow a sub-class to borrow bandwidth from its parent
class if the parent class is not using up its bandwidth budget.
Bandwidth borrowing is governed by the priority of the sub-classes. That is, a
sub-class with the highest priority (7) is the first to borrow bandwidth from its
parent class.
Do not select this for the classes directly below the root class if you want to
leave bandwidth available for other traffic types (see Section 20.7.4 on page
413) or you want to set the interface’s speed to match what the next device in
network can handle (see the Speed field description in Table 131 on page
418).
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