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Chapter 17 Inbound Load Balancing
ZyWALL 110/310/1100 Series User’s Guide
251
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.
Load Balancing
Algorithm
Select a load balancing method to use from the drop-down list box.
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.
Table 93 Configuration > Network > Inbound LB > Add/Edit (continued)
LABEL DESCRIPTION