Fortinet 5003A Fabric And Base Backplane Communications Manual page 40

Example active-passive redundant link configuration
40
3 Add two spanning tree instances numbered the same as the instances added to
the switch (3 and 5). Add the VLAN tags to the instances and set their priority
values to 4096:
config switch fabric-channel stp instance
edit 3
set priority 4096
set vlan-range 103-104
next
edit 5
set priority 4096
set vlan-range 105-106
end
Note: The priority values of both spanning tree instances should be lower on the
FortiSwitch-5003A board in slot 1 than on the board in slot 2 so that spanning tree directs
all traffic to the board in slot 1.
4 Add a trunk named trunk_6 that aggregates backplane slots 6, 8, 9, 10, 11, and
13:
config switch fabric-channel trunk
edit "trunk_6"
set members "slot-6" "slot-8" "slot-9" "slot-10"
"slot-11" "slot-13"
end
5 Allow VLAN packets on the FortiSwitch-5003A F7 front panel interface and the
trunk:
config switch fabric-channel interface
edit "f7"
set allowed-vlans 1,103-106
next
edit "trunk_6"
set allowed-vlans 1,103-106
end
6 Enable the FortiSwitch-5003A board to listen for heartbeat packets on all of the
interfaces connected to FortiGate-5001A boards:
config switch fabric-channel physical-port
edit "slot-6"
set heartbeat enable
next
edit "slot-8"
set heartbeat enable
next
edit "slot-9"
set heartbeat enable
next
edit "slot-10"
set heartbeat enable
next
edit "slot-11"
set heartbeat enable
next
edit "slot-13"
set heartbeat enable
end
FortiSwitch-5003A and 5003 Fabric and Base Backplane Communications Guide
FortiGate-5140 fabric backplane communication
01-30000-85717-20081205