Example FortiGate-7000 HA heartbeat switch configuration

The switch that you use for connecting HA heartbeat interfaces does not have to support IEEE 802.1ad (also known as Q-in-Q, double-tagging), but the switch should be able to forward the double-tagged frames. Fortinet recommends avoiding switches that strip out the inner tag. FortiSwitch D and E series can correctly forward double-tagged frames.

This configuration is not required for FortiGate-7030E HA configurations if you have set up direct connections between the HA heartbeat interfaces.

This example shows how to configure a FortiGate-7000 to use different VLAN IDs for the M1 and M2 HA heartbeat interfaces and then how to configure two ports on a Cisco switch to allow HA heartbeat packets.

This example sets the native VLAN ID for both switch ports to 777. You can use any VLAN ID as the native VLAN ID as long as the native VLAN ID is not the same as the allowed VLAN ID.

1. On both FortiGate-7000s in the HA configuration, enter the following command to use different VLAN IDs for the M1 and M2 interfaces. The command sets the M1 VLAN ID to 4086 and the M2 VLAN ID to 4087:

   config system ha

   set hbdev "1-M1" 50 "2-M1" 50 "1-M2" 50 "2-M2" 50

   set hbdev-vlan-id 4086

   set hbdev-second-vlan-id 4087

   end

2. Use the get system ha status command to confirm the VLAN IDs.

   get system ha status
   ...
   HBDEV stats:
    FG74E83E16000015(updated 1 seconds ago):
      1-M1: physical/10000full, up, rx-bytes/packets/dropped/errors=579602089/2290683/0/0, tx=215982465/761929/0/0, vlan-id=4086
      2-M1: physical/10000full, up, rx-bytes/packets/dropped/errors=577890866/2285570/0/0, tx=215966839/761871/0/0, vlan-id=4086
      1-M2: physical/10000full, up, rx-bytes/packets/dropped/errors=579601846/2290682/0/0, tx=215982465/761929/0/0, vlan-id=4087
      2-M2: physical/10000full, up, rx-bytes/packets/dropped/errors=577890651/2285569/0/0, tx=215966811/761871/0/0, vlan-id=4087
    FG74E83E16000016(updated 1 seconds ago):
      1-M1: physical/10000full, up, rx-bytes/packets/dropped/errors=598602425/2290687/0/0, tx=196974887/761899/0/0, vlan-id=4086
      2-M1: physical/10000full, up, rx-bytes/packets/dropped/errors=596895956/2285588/0/0, tx=196965052/761864/0/0, vlan-id=4086
      1-M2: physical/10000full, up, rx-bytes/packets/dropped/errors=598602154/2290686/0/0, tx=196974915/761899/0/0, vlan-id=4087
      2-M2: physical/10000full, up, rx-bytes/packets/dropped/errors=596895685/2285587/0/0, tx=196965080/761864/0/0, vlan-id=4087
   ...

3. Configure the Cisco switch port that connects the M1 interfaces to allow packets with a VLAN ID of 4086:

   interface <name>

   switchport mode trunk

   switchport trunk native vlan 777

   switchport trunk allowed vlan 4086

4. Configure the Cisco switch port that connects the M2 interfaces to allow packets with a VLAN ID of 4087:

   interface <name>

   switchport mode trunk

   switchport trunk native vlan 777

   switchport trunk allowed vlan 4087