Fortinet FortiGate-800 User Manual

Page 77

High availability

Configuring an HA cluster

FortiGate-800 Installation and Configuration Guide

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.

To connect the cluster

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.

• Optionally connect the DMZ interfaces of each FortiGate unit to a switch or hub

connected to your DMZ network.

• Optionally connect ports 1 to 4 of each FortiGate unit to switches or hubs

connected to other networks.

• Connect the HA interfaces of the FortiGate units to another switch or hub.

Figure 15: HA network configuration

Esc

Enter

CONSOLE

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P W R

Esc

Enter

CONSOLE

I N T E R N A L

E X T E R N A L

D M Z

USB

P W R

Internet

Internal Network

Internal

External

Hub or
Switch

Router