Fortinet FortiGate FortiGate-300 Administration Manual page 92

HA
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Select Apply.
The FortiGate unit negotiates to establish an HA cluster. When you select apply you
may temporarily lose connectivity with the FortiGate unit as the HA cluster negotiates.
If you are configuring a NAT/Route mode cluster, power off the FortiGate unit and
then repeat this procedure for all the FortiGate units in the cluster. Once all of the units
are configured, continue with
If you are configuring a Transparent mode cluster, reconnect to the web-based
manager.
You may have to wait a few minutes before you can reconnect.
Go to System > Status.
Select Change to Transparent Mode and select OK to switch the FortiGate unit to
Transparent mode.
Power off the FortiGate unit.
Repeat this procedure for all of the FortiGate units in the cluster then continue with
connect a FortiGate HA cluster" on page
To connect a FortiGate HA cluster
Use the following procedure to connect a cluster operating in NAT/Route mode or
Transparent mode. Connect the FortiGate units in the cluster to each other and to
your network. You must connect all matching interfaces in the cluster to the same hub
or switch. Then you must connect these interfaces to their networks using the same
hub or switch.
Fortinet recommends using switches for all cluster connections for the best
performance.
The FortiGate units in the cluster use cluster ethernet interfaces to communicate
cluster session information, synchronize the cluster configuration, and report
individual cluster member status. The units in the cluster are constantly
communicating HA status information to make sure that the cluster is operating
properly. This cluster communication is also called the cluster heartbeat.
Inserting an HA cluster into your network temporarily interrupts communications on
the network because new physical connections are being made to route traffic through
the cluster. Also, starting the cluster interrupts network traffic until the individual
FortiGate units in the cluster are functioning and the cluster completes negotiation.
Cluster negotiation normally takes just a few seconds. During system startup and
negotiation all network traffic is dropped.
1 Connect the cluster units.
• Connect the internal interfaces of each FortiGate unit to a switch or hub connected
to your internal network.
• Connect the external interfaces of each FortiGate unit to a switch or hub connected
to your external network.
• Connect the DMZ/HA interfaces of the FortiGate units to another switch or hub.
"To connect a FortiGate HA cluster" on page
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System config
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Fortinet Inc.