FGCP HA hardware session synchronization
When configuring active-passive FortiGate Clustering Protocol (FGCP) HA or active-passive FGCP virtual clustering for two FortiGates with hyperscale firewall support, you can use FGCP HA hardware session synchronization to synchronize NP7 sessions between the FortiGates in the cluster. FGCP HA hardware session synchronization is only supported between two FortiGates.
In an active-passive FGCP cluster, HA hardware session synchronization copies sessions from the primary FortiGate to the secondary FortGate. Both FortiGates maintain their own session tables with their own session timeouts. FGCP HA hardware session synchronization does not compare FortiGate session tables to keep them synchronized. In some cases you may notice that the secondary FortiGate in the HA cluster may have a lower session count than the primary FortiGate. This is a known limitation of FGCP HA hardware session synchronization. Normally the difference in session count is relatively minor and in practice results in very few lost sessions after a failover.
In an active-passive FGCP virtual clustering configuration, FGCP HA hardware session synchronization copies sessions from VDOMs processing traffic to VDOMs on the other FortiGate in the virtual cluster that are not processing traffic. All VDOM instances maintain their own session tables with their own session timeouts. FGCP HA hardware session synchronization does not compare VDOM session tables between FortiGates to keep them synchronized.
FGCP HA hardware session synchronization packets are the same as standard session synchronization packets. For FGCP HA they are layer 2 TCP and UDP packets that use destination port 703. FGCP HA does not require you to add IP addresses to the interfaces that you use for HA hardware session synchronization.
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HA hardware session synchronization is not supported for active-active HA. FGSP HA hardware session synchronization is supported, see FGSP HA hardware session synchronization. |
The HA Status dashboard widget shows hardware session synchronization status.
