Chapter 8 WAN Screens

Table 35 Load Balancing: Weighted Round Robin (continued)

LABEL

DESCRIPTION

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).

 

 

8.8.3 Spillover

To load balance using the spillover method, select Spillover in the Load Balancing Algorithm field.

Configure the Route Priority metrics in the WAN General screen to determine the primary and secondary WANs. By default, WAN 1 is the primary WAN and WAN 2 is the secondary WAN.

Figure 111 Load Balancing: Spillover

The following table describes the related fields in this screen.

Table 36 Load Balancing: Spillover

LABEL

DESCRIPTION

Active/Active

Select Active/Active Mode and set the related fields to enable load balancing on

Mode

the ZyWALL.

 

 

Load Balancing

Set the load balancing method to Spillover.

Algorithm

 

 

 

WAN Interface

Select this option to have the ZyWALL send all of a local computer’s traffic through

to Local Host

the same WAN interface for the period of time that you specify (1 to 600 seconds).

Mapping

This is useful when a redirect server forwards a local user’s request for a file and

Timeout

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.

 

 

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.

 

 

Send traffic to

Specify the maximum allowable bandwidth on the primary WAN. Once this

secondary WAN

maximum bandwidth is reached, the ZyWALL sends the new session traffic that

when primary

exceeds this limit to the secondary WAN. The ZyWALL continues to send traffic of

WAN bandwidth

existing sessions to the primary WAN.

exceeds

 

 

 

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ZyWALL 2WG User’s Guide