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ZyXEL Communications 5 Series User Manual

Page 434

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ZyWALL 5/35/70 Series User’s Guide

434

Chapter 24 Bandwidth Management

Figure 229 ADVANCED > BW MGMT > Class Setup > Add Sub-Class

The following table describes the labels in this screen.

Table 140 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 24.7.4 on page

426

) 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 138 on page

430

).

Filter Configuration