Chapter 9 WAN Screens
ZyWALL 5/35/70 Series User’s Guide
180
Figure 101 Weighted Round Robin Algorithm Example
To load balance using the weighted round robin method, select Weighted Round Robin in the
Load Balancing Algorithm field.
Figure 102 Load Balancing: Weighted Round Robin
The following table describes the related fields in this screen.
9.2.5 Spillover
With the spillover load balancing algorithm, the ZyWALL sends network traffic to the
primary interface until the maximum allowable load is reached, then the ZyWALL sends the
excess network traffic of new sessions to the secondary WAN interface. Configure the Route
Priority metrics in the WAN General screen to determine the primary and secondary WANs.
Table 39 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.
Interface This field displays the name of the WAN interface (WAN 1 and WAN 2).
Ratio Specify the weight for the interface. Enter 0 to set the ZyWALL not to send traffic load
to the interface. The higher the number, the bigger the weight (the more traffic sent).
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