When configuring FortiGate Session Life Support Protocol (FGSP) clustering for two hyperscale firewall FortiGate peers, you can use FGSP HA hardware session synchronization to synchronize NP7 hyperscale firewall sessions between the FortiGate peers in the cluster. The FortiGate peers can be:
Two FGCP clusters
One FortiGate and one FCGP cluster
Configuring the HA
hw-session-sync-dev option is not required for FGSP HA hardware session synchronization. Instead, you set up a normal FGSP configuration for your hyperscale firewall VDOMs and use a data interface or data interface LAG as the FGSP session synchronization interface. The data interface can be a physical interface or a VLAN.
Select a data interface or create a data interface LAG for FGSP HA hardware session synchronization that can handle the expected traffic load. For example, from Fortinet's testing, hyperscale rates of 4,000,000 connections per second (CPS) can use 35Gbps of data for FGSP HA hardware session synchronization. If the CPS rate is higher, FGSP HA hardware session synchronization data use may spike above 50Gbps.
FGSP HA hardware session synchronization packets are distributed by the internal switch fabric to the NP7 processors just like normal data traffic. If you create a data interface LAG for FGSP HA hardware session synchronization, no special configuration of the data interface LAG is required for optimal performance.
FGSP HA hardware session synchronization does not support session filters (configured with the
config session-sync-filter option).
For more information about FGSP, see FGSP.
Just like any FGSP configuration, the FortiGates must be the same model. The configurations of the hyperscale VDOMs on each FortiGate must also be the same. This includes VDOM names, interface names, and firewall policy configurations. You can use configuration synchronization to synchronize the configurations of the FortiGates in the FGSP cluster (see Standalone configuration synchronization). You can also configure the FortiGate separately or use FortiManager to keep key parts of the configuration, such as firewall policies, synchronized