ZyXEL Communications ZyWALL5UTM 4.0 User Manual

ZyWALL 5/35/70 Series User’s Guide

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Chapter 25 Bandwidth Management

Figure 194   Bandwidth Management: Summary

The following table describes the labels in this screen.    

Table 141   Bandwidth Management: Summary 

Class

These read-only labels represent the physical interfaces. Select an interface’s check 

box to enable bandwidth management on that interface. Bandwidth management 

applies to all traffic flowing out of the router through the interface, regardless of the 

traffic’s source.
Traffic redirect or IP alias may cause LAN-to-LAN or DMZ-to-DMZ traffic to pass 

through the ZyWALL and be managed by bandwidth management.

Active

Select an interface’s check box to enable bandwidth management on that interface.

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 

). 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 

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 

) 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.