Fortinet 5003 - Manual (Page 82)

FortiSwitch-5003A and 5003 Fabric and Base Backplane Communications Guide
82 01-30000-85717-20081205
HA configurations FortiGate-5020 base backplane communication
Heartbeat failover between channels
To configure your HA cluster with a heartbeat that fails over between the two base
backplane interfaces, both base backplane interfaces must be enabled and:
• if priorities are not equal, must have the highest priorities of all heartbeat
interfaces
• if priorities are equal, be the first interfaces on the indexed Heartbeat Interface
list
If you also want to specify which base backplane channel is used as the primary
or failover, its priority must be greater than the failover interface, or it must have a
higher position in the Heartbeat Interface list. Position in the Heartbeat Interface
list varies by the model of the FortiGate modules.
You can satisfy these requirements in multiple ways by adjusting interface priority
or by disabling heartbeats over other interfaces. Required steps vary by the model
of your FortiGate modules, and the number and Heartbeat Interface list position of
other interfaces enabled as heartbeat interfaces.
Default heartbeat interfaces vary by the model of the FortiGate modules, and are
not always base backplane interfaces. For example, FortiGate-5005FA2 modules
use the fabric backplane (fabric1 and fabric2), rather than the base backplane, by
default. If this is the case, to send heartbeat traffic through the base backplane,
you must enable and adjust the priority of the base backplane interfaces.
Conversely, FortiGate-5001SX and FortiGate-5001FA2 modules use base
backplane heartbeat interfaces by default, and do not require modification.
Figure 33: HA cluster with two available base backplane heartbeat interfaces
(directly connected through the base backplane)
PSU A
PSU B
PWR STA IPM
CONSOLE USB 1 2 3 4 5 6 7 8
ACC
PWR STA IPM
CONSOLE USB 1 2 3 4 5 6 7 8
ACC base
backplane
channel 1
base
backplane
channel 2