In FortiGate, which mode is optimal for performance but less thorough in threat inspection?

Flow Mode is optimal for performance because it employs a stateful inspection strategy that inspects packets as they enter or exit the network. In this mode, the FortiGate device maintains the state of active connections, which allows it to avoid unnecessary checks of packets that are part of an established session. This streamlined processing reduces overhead and maximizes throughput, leading to improved performance compared to more thorough inspection modes.

While Flow Mode offers efficient handling of traffic, it is less comprehensive in its threat inspection capabilities compared to other modes like Inspection Mode, which performs deeper inspection of packets. The focus in Flow Mode is on speed and efficiency rather than complete threat detection, making it suitable for environments where performance is a priority.

In contrast, Inspection Mode and Hybrid Mode involve more extensive checking of all packets, potentially impacting throughput for the sake of thoroughness. Operation Mode, while relevant, does not specifically describe the performance vs. inspection trade-off as accurately as Flow Mode does, making it clear why Flow Mode is the optimal choice in this scenario.