Which two statements about equal-cost multi-path (ECMP) configuration on FortiGate are true?

The statement regarding SD-WAN being enabled and controlling the load balancing algorithm with the parameter load-balance-mode is accurate. When SD-WAN is utilized on a FortiGate device, it allows for the configuration of multiple paths for outbound traffic. The load-balance-mode parameter specifically enables administrators to set how the traffic is distributed across the available routes, which is fundamental in optimizing network efficiency and resource usage. This capability ensures that traffic can be intelligently load balanced across multiple WAN links, providing redundancy and improved performance.

In the context of multi-path routing, while static routing could be part of the configuration depending on the network design, it is not a strict requirement for ECMP to function. ECMP can work with various routing protocols and is designed to work regardless of whether static routes are in place. Additionally, the load balancing algorithms can be configured both within and outside of SD-WAN settings based on system requirements. There is also no hard limitation of four paths for ECMP, as it can support multiple paths depending on the configuration and FortiGate models, thus making the responses about handling a limited number of paths incorrect.