ZyXEL Communications ZyWALL 70, User Manual

Page: 332 / 705

ZyWALL 70 User’s Guide
332 Chapter 20 Bandwidth Management
20.11 Configuring Class Setup
The Class Setup screen displays the configured bandwidth classes by individual interface.
Select an interface and click the buttons to perform the actions described next. Click “+” to
expand the class tree or click “-“ to collapse the class tree. Each interface has a permanent root
class. The bandwidth budget of the root class is equal to the speed you configured on the
interface (see
Section 20.10 on page 331 to configure the speed of the interface). Configure
sub-class layers for the root class.
To add or delete child classes on an interface, click BW MGMT , then the Class Setup tab.
The screen appears as shown (with example classes).
Speed (kbps) Enter the amount of bandwidth for this interface that you want to allocate using
bandwidth management.
This appears as the bandwidth budget of the interface’s root class (see
Section
20.11 on page 332 ). The recommendation is to set this speed to match what the
device connected to the port can handle. For example, set the WAN interface speed
to 1000 kbps if the broadband device connected to the WAN port has an upstream
speed of 1000 kbps.
Scheduler Select either Priority-Based or Fairness-Based from the drop-down menu to
control the traffic flow.
Select Priority-Based to give preference to bandwidth classes with higher priorities.
Select Fairness-Based to treat all bandwidth classes equally. See Section 20.7 on
page 327 .
Maximize
Bandwidth
Usage
Select this check box to have the ZyWALL divide up all of the interface’s unallocated
and/or unused bandwidth among the bandwidth classes that require bandwidth. Do
not select this if you want to reserve bandwidth for traffic that does not match a
bandwidth class (see Section 20.8.1 on page 328 ) or you want to limit the speed of
this interface (see the Speed field description).
Apply Click Apply to save your changes back to the ZyWALL.
Reset Click Reset to begin configuring this screen afresh.
Table 114 Bandwidth Management: Summary (continued)
LABEL DESCRIPTION