FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
Also called the subordinate cluster unit. Each FortiGate HA cluster contains one or more cluster units that are not functioning as the primary unit. Subordinate units are always waiting to become the primary unit. If a subordinate unit does not receive hello packets from the primary cluster unit, it attempts to become the primary unit.
In an active-active cluster, subordinate units keep track of cluster connections, keep their configurations and routing tables synchronized with the primary unit, and process network traffic assigned to them by the primary unit. In an active-passive cluster, subordinate units do not process network traffic. However, active-passive subordinate units track cluster connections and keep their configuration sand routing tables synchronized with the primary unit.
The FortiGate firmware uses the terms "slave", "subsidiary unit", and "backup unit" to refer to a subordinate cluster unit.
