Fortinet FortiGate FortiGate-4000 Installation Manual page 72

Connecting the cluster to your networks
72
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
1 Connect the cluster units:
For FortiGate-4000S:
• Connect your internal network to the internal switched interface module.
• Connect your external network to the external switched interface module.
For FortiGate-4000P:
• Connect the internal pass-through interface module of each FortiGate unit to a
switch or hub connected to your internal network.
• Connect the external pass-through interface module of each FortiGate unit to a
switch or hub connected to your external network.
Figure 25: HA network configuration
Internal Network
Hub or
Switch
Internal
PWR
PWR
Internal
01-28004-0028-20040830
High availability installation
WAN1
INTERNAL
STATUS 1 2 3 4 DMZ WAN1 WAN2
LINK 100 LINK 100 LINK 100 LINK 100 LINK 100 LINK 100 LINK 100
DMZ
DMZ
INTERNAL
STATUS 1 2 3 4 DMZ WAN1 WAN2
LINK 100 LINK 100 LINK 100 LINK 100 LINK 100 LINK 100 LINK 100
WAN1
Internet
Hub or
Switch
Router
Fortinet Inc.