Chapter 20 Bandwidth Management

Figure 258 ADVANCED > BW MGMT > Summary

The following table describes the labels in this screen.

Table 131 ADVANCED > BW MGMT > Summary

LABEL

DESCRIPTION

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 Section 20.12 on page 419). 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.

 

The recommendation is to set this speed to match the interface’s actual

 

transmission speed. For example, set the WAN interface speed to 1000 kbps if your

 

Internet connection has an upstream transmission speed of 1 Mbps.

 

You can set this number higher than the interface’s actual transmission speed. This

 

will stop lower priority traffic from being sent if higher priority traffic uses all of the

 

actual bandwidth.

 

You can also set this number lower than the interface’s actual transmission speed. If

 

you do not enable Maximize Bandwidth Usage, this will cause the ZyWALL to not

 

use some of the interface’s available bandwidth.

 

 

Scheduler

Select either Priority-Basedor Fairness-Basedfrom the drop-down menu to

 

control the traffic flow.

 

Select Priority-Basedto give preference to bandwidth classes with higher priorities.

 

Select Fairness-Basedto treat all bandwidth classes equally. See Section 20.7 on

 

page 413.

 

 

Maximize

Select this check box to have the ZyWALL divide up all of the interface’s unallocated

Bandwidth

and/or unused bandwidth among the bandwidth classes that require bandwidth. Do

Usage

not select this if you want to reserve bandwidth for traffic that does not match a

 

bandwidth class (see Section 20.7.4 on page 413) 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.

 

 

418

 

ZyWALL 2WG User’s Guide