Fortinet FortiGate 5020 - Manual (Page 9)

Base backplane communications and HA between FortiGate-5020 chassis FortiGate-5020 base backplane interfaces
FortiGate-5020 Chassis Guide
01-30000-0043-20061207
9
Base backplane communications
and HA between FortiGate-5020
chassis
This chapter describes:
• FortiGate-5020 base backplane interfaces
• FortiGate HA between two FortiGate-5020 chassis
FortiGate-5020 base backplane interfaces
For the FortiGate-5020 chassis, you can use the FortiGate-5000 module base
backplane interfaces for HA heartbeat communication and data communication
between the two FortiGate modules installed in the same chassis. No changes to
the chassis configuration or additions to the chassis hardware are required. The
FortiGate-5020 chassis does not allow communication between different base
backplane channels or directly from the backplane to external networks. So the
base backplane interfaces can only be used for HA and data communication
between the FortiGate modules in the chassis, and only inside the same base
backplane channel.
For example, if you have two FortiGate-5001SX modules installed in a
FortiGate-5020 chassis, you can enable the base backplane interfaces for data
communication and then you can communicate data from port9 on one
FortiGate-5001SX module to port9 of the other module. You can also
communicate data between port10 on one FortiGate-5001SX module and port10
on the other FortiGate-5001SX module. However, you cannot communicate data
between port9 on one FortiGate-5001SX module and port10 on the other
FortiGate-5001SX module.
Data communication between different FortiGate-5000 modules is supported. So,
for example, if you install a FortiGate-5001FA2 and a FortiGate-5001SX module
in the same FortiGate-5020 chassis, you can communicate between port9 of the
FortiGate-5001FA2 module and port9 of the FortiGate-5001SX module. You can
also communicate between port10 of the FortiGate-5001FA2 and port10 on the
FortiGate-5001SX module.
Note: VLAN communication over the base backplane interfaces is available for
FortiGate-5000 modules installed in a FortiGate-5020 chassis. The FortiSwitch-5003 does
not support VLAN-tagged packets so VLAN communication is not available over the
FortiGate-5050 and FortiGate-5140 chassis base backplane interfaces.