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Chapter 8 WAN Screens
ZyWALL 2WG User’s Guide
175
8.8.2 Weighted Round Robin
To load balance using the weighted round robin method, select Weighted Round Robin in the
Load Balancing Algorithm field.
Figure 110 Load Balancing: Weighted Round Robin
The following table describes the related fields in this screen.
Time Frame You can set the ZyWALL to get the measured bandwidth using the average
bandwidth in the specified time interval.
Enter the time interval between 10 and 600 seconds.
Load Balancing
Index(es)
Specify the direction of the traffic utilization you want the ZyWALL to use in
calculating the load balancing index.
Select Outbound Only, Inbound Only or Outbound + Inbound.
Interface This field displays the name of the WAN interface (WAN 1 and WAN 2).
Available
Inbound
Bandwidth
This field is applicable when you select Outbound + Inbound or Inbound Only in
the Load Balancing Index(es) field.
Specify the inbound (or downstream) bandwidth (in kilo bites per second) for the
interface. This should be the actual downstream bandwidth that your ISP provides.
Available
Outbound
Bandwidth
This field is applicable when you select Outbound + Inbound or Outbound Only in
the Load Balancing Index(es) field.
Specify the outbound (or upstream) bandwidth (in kilo bites per second) for the
interface. This should be the actual upstream bandwidth that your ISP provides.
Table 34 Load Balancing: Least Load First (continued)
LABEL DESCRIPTION
Table 35 Load Balancing: Weighted Round Robin
LABEL DESCRIPTION
Active/Active
Mode
Select Active/Active Mode and set the related fields to enable load balancing on the
ZyWALL.
Load Balancing
Algorithm
Set the load balancing method to Weighted Round Robin.
WAN Interface
to Local Host
Mapping
Timeout
Select this option to have the ZyWALL send all of a local computer’s traffic through
the same WAN interface for the period of time that you specify (1 to 600 seconds).
This is useful when a redirect server forwards a local user’s request for a file and
informs the file server that a particular WAN IP address is requesting the file. If the
user’s subsequent sessions came from a different WAN IP address, the file server
would deny the request.