Chapter 18 DNS Inbound LB
ZyWALL ATP Series User’s Guide
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18.2.2 The DNS Inbound LB Add/Edit Member Screen
The
Add Load Balancing Member
screen allows you to add a member interface for the DNS load
balancing rule. Click
Configuration > Network > DNS Inbound LB > Add or Edit
and then an
Add
or
Edit
icon to open this screen.
Zone
Select the zone of DNS query messages upon which to apply this rule.
Load Balancing
Member
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 Zyxel Device 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 Zyxel Device choose the member interface which is
handling the least number of sessions.
Select
Least Load - Outbound
to have the Zyxel Device choose the member interface
which is handling the least amount of outgoing traffic.
Select
Least Load - Inbound
to have the Zyxel Device choose the member interface
which is handling the least amount of incoming traffic.
Select
Least Load - Total
to have the Zyxel Device 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 Zyxel Device 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 Zyxel Device confirms you want to
remove it before doing so.
#
This field displays the order in which the Zyxel Device 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 Zyxel Device 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 Zyxel Device.
Cancel
Click
Cancel
to exit this screen without saving.
Table 151 Configuration > Network > DNS Inbound LB > Add/Edit (continued)
LABEL
DESCRIPTION
