Example FortiGate-6000 FGSP session synchronization with a data interface LAG

This example shows how to configure FGSP to synchronize sessions between two FortiGate-6501s for the root VDOM and for a second VDOM, named vdom-1. For FGSP session synchronization, the example uses a data interface LAG that includes the port9 to port12 interfaces.

To set up the configuration, start by giving each FortiGate-6501F a different host name to make them easier to identify. This example uses peer_1 and peer_2. On each FortiGate-6501F, create a VDOM named fgsp-sync and move the port9 to port12 interfaces to this VDOM. Then create a LAG named Data-int-lag, also in the fgsp-sync VDOM, that includes the port9 to port12 interfaces. The LAGs on both FortiGate-6501Fs are on the 172.25.177.0/24 network.

This example also adds standalone configuration synchronization using the HA1 and HA2 interfaces and sets the peer_1 device priority higher so that it becomes the config sync primary. Once configuration synchronization is enabled, you can log into peer_1 and add firewall policies and make other configuration changes and these configuration changes will be synchronized to peer_2. For information about configuration synchronization, including its limitations, see Standalone configuration synchronization.

Example FortiGate-6000 FGSP configuration using data interface LAGs

1. Configure the routers or load balancers to distribute sessions to the two FortiGate-6501Fs.

2. Change the host names of the FortiGate-6501Fs to peer_1 and peer_2.
3. Configure network settings for each FortiGate-6501F to allow them to connect to their networks and route traffic.
4. Add the vdom-1 and fgsp-sync VDOMs to each FortiGate-6501F.
5. Also on each FortiGate-6501F, move the port9, port10, port11, and port12 data interfaces to the fgsp-sync VDOM.

6. On peer_1, configure the port9 to port12 interfaces to be FGSP session synchronization data interfaces.

   config system standalone-cluster

   set standalone-group-id 6

   set group-member-id 1

   set data-intf-session-sync-dev port9 port10 port11 port12

   end

7. On peer_1, add a data interface LAG to the fgsp-sync VDOM.

   config system interface

   edit Data-int-lag

   set type aggregate

   set vdom fgsp-sync

   set member port9 port10 port11 port12

   set ip 172.25.177.30/24

   set mtu-override enable

   set mtu 9216

   end

   This configuration adds the data interface LAG to the fgsp-sync VDOM, includes the four data interfaces configured to be FGSP session synchronization interfaces, and configures the LAG to support jumbo frames.

8. On peer_1, configure session synchronization for the root and vdom-1 VDOMs.

   config system cluster-sync

   edit 1

   set peervd fgsp-sync

   set peerip 172.25.177.40

   set syncvd root vdom-1

   end

   peervd is fgsp-sync because the FGSP session synchronization data interfaces are in the fgsp-sync VDOM.

   peerip is the IP address of the data interface LAG added to peer_2.

   This configuration creates one cluster-sync instance that includes both VDOMs. You could have created a separate cluster-sync instance for each VDOM. If possible, however, avoid creating more than three cluster-sync instances. A fourth cluster-sync instance may experience reduced session synchronization performance.

9. On peer_1, enable configuration synchronization, enable session pickup, configure the heartbeat interfaces, and set a higher device priority. This makes peer_1 become the config sync primary.

   config system ha

   set standalone-config-sync enable

   set session-pickup enable

   set session-pickup-connectionless enable

   set session-pickup-expectation enable

   set session-pickup-nat enable

   set priority 250

   set hbdev ha1 50 ha2 50

   end

10. On peer_2, configure the port9 to port12 interfaces to be FGSP session synchronization data interfaces.

    config system standalone-cluster

    set standalone-group-id 6

    set group-member-id 2

    set data-intf-session-sync-dev port9 port10 port11 port12

    end

11. On peer_2, add a data interface LAG to the fgsp-sync VDOM:

    config system interface

    edit Data-int-lag

    set type aggregate

    set vdom fgsp-sync

    set member port9 port10 port11 port12

    set ip 172.25.177.40/24

    set mtu-override enable

    set mtu 9216

    end

    This configuration adds the data interface LAG to the fgsp-sync VDOM, includes the four data interfaces configured to be FGSP session synchronization interfaces, and configures the LAG to support jumbo frames.

12. On peer_2, configure session synchronization for the root and vdom-1 VDOMs.

    config system cluster-sync

    edit 1

    set peervd fgsp-sync

    set peerip 172.25.177.30

    set syncvd root vdom-1

    end

13. On peer_2, enable configuration synchronization, enable session pickup, configure the heartbeat interfaces, and leave the device priority set to the default value.

    config system ha

    set standalone-config-sync enable

    set session-pickup enable

    set session-pickup-connectionless enable

    set session-pickup-expectation enable

    set session-pickup-nat enable

    set hbdev ha1 50 ha2 50

    end

    As sessions are forwarded by the routers or load balancers to one of the FortiGate-6501Fs, the FGSP synchronizes the sessions to the other FortiGate-6501F. You can log into peer_1 and make configuration changes, which are synchronized to peer_2.