Chapter 17 Inbound Load Balancing

 

 

 

 

Table 93 Configuration > Network > Inbound LB > Add/Edit (continued)

 

LABEL

DESCRIPTION

 

Load Balancing

Select a load balancing method to use from the drop-down list box.

 

Algorithm

 

 

 

Select Weighted Round Robin to balance the traffic load between

 

 

interfaces based on their respective weights. An interface with a larger

 

 

weight gets more chances to transmit traffic than an interface with a

 

 

smaller weight. For example, if the weight ratio of wan1 and wan2

 

 

interfaces is 2:1, the ZyWALL chooses wan1 for 2 sessions’ traffic and wan2

 

 

for every session’s traffic in each round of 3 new sessions.

 

 

Select Least Connection to have the ZyWALL choose the member interface which is

 

 

handling the least number of sessions.

 

 

Select Least Load - Outbound to have the ZyWALL choose the member interface

 

 

which is handling the least amount of outgoing traffic.

 

 

Select Least Load - Inbound to have the ZyWALL choose the member interface

 

 

which is handling the least amount of incoming traffic.

 

 

Select Least Load - Total to have the ZyWALL choose the member interface which

 

 

is handling the least amount of outgoing and incoming traffic.

 

 

 

 

Failover IP Address

Enter an alternate IP address with which the ZyWALL will respond to a DNS query

 

 

message when the load balancing algorithm cannot find any available interface.

 

 

 

 

Add

Click this to create a new member interface for this rule.

 

 

 

 

Edit

Double-click an entry or select it and click Edit to open a screen where you can

 

 

modify the entry’s settings.

 

 

 

 

Remove

To remove an entry, select it and click Remove. The ZyWALL confirms you want to

 

 

remove it before doing so.

 

 

 

 

#

This field displays the order in which the ZyWALL checks this rule’s member

 

 

interfaces.

 

 

 

 

IP Address

This field displays the IP address of the member interface.

 

 

 

 

Monitor Interface

This field displays the name of the member interface. The ZyWALL manages load

 

 

balancing between the member interfaces.

 

 

 

 

Weight

This field is available if you selected Weighted Round Robin as the load balancing

 

 

algorithm. This field displays the weight of the member interface. An interface with a

 

 

larger weight gets more chances to transmit traffic than an interface with a smaller

 

 

weight.

 

 

 

 

OK

Click OK to save your changes back to the ZyWALL.

 

 

 

 

Cancel

Click Cancel to exit this screen without saving.

 

 

 

17.2.2 The Inbound LB Member Add/Edit Screen

The Add Load Balancing Member screen allows you to add a member interface for the DNS load balancing rule. Click Configuration > Network > Inbound LB > Add or Edit and then an Add or Edit icon to open this screen.

 

251

ZyWALL 110/310/1100 Series User’s Guide