What protocol must be used for FortiAnalyzer HA to function?

For FortiAnalyzer High Availability (HA) to operate effectively, the Virtual Router Redundancy Protocol (VRRP) is required. VRRP is designed to increase the availability of the routing path by enabling multiple routers to use the same virtual IP address. This setup allows one router to act as the master and others as backups. If the master fails, one of the backup routers can take over seamlessly, ensuring continuous service and minimal downtime.

In the context of FortiAnalyzer, implementing VRRP allows for redundancy among multiple units. This ensures that logging and analysis services remain uninterrupted, even in the event of hardware failure. This becomes critical in network environments where consistent monitoring and data analysis are essential for security and performance optimization. Other protocols mentioned, such as HSRP (Hot Standby Router Protocol), GLBP (Gateway Load Balancing Protocol), and EIGRP (Enhanced Interior Gateway Routing Protocol), do not fulfill the specific requirements set forth for FortiAnalyzer HA functionality.