DNS/DHCP Management Console
Manage Failover Peer
Failover Peer defines methods for two servers to share common address
pools and ensure continuous availability.
To create a Failover Peer object:
- Select the service for which you want
to create the Failover Peer object.
- Specify a name
to identify the Failover Peer object.
- Specify the
IP Address of the Primary Server.
-
Specify the Port Number of the Primary Server.
-
Specify the IP Address of the Secondary Server.
-
Specify the port number of the Secondary Server.
-
Specify the Max Client Lead Time. This is the length of time for which a lease
may be renewed by either server without contacting the other. (Specify this on
the Primary Server. You cannot specify this on the Secondary Server).
-
Specify the Failover Split. This specifies the split between the Primary and
Secondary Servers for the purpose of load balancing.
-
Click Create.
General
You can also use this option to modify the properties of
a failover peer by changing any of the following attributes:
- As necessary, modify the attributes such as Primary Server IP Address, Primary Port, Secondary
Server IP Address, Secondary Port, Max Client Lead Time, and Failover Split which were defined during creating the
failover peer.
- As necessary, modify the following attributes:
- Specify the Unacked Updates. This notifies the Primary Server of the number
of messages it can send before it receives from the Failover Secondary
Server.
- Specify the Response Delay. This refers to the amount of information
that needs to be processed.
- Specify the Load Balance Time. This refers to the time (seconds) set
so that if one of the failover peers gets into a state where it responds
to the failover messages but does not respond to some client requests,
the other failover peer automatically takes over its client load when the
clients retry.
- Specify comments if any.
- Click OK.
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