![]() ![]() There are additional benefits to load balancing. The FortiGate unit schedules requests to the real servers and makes parallel services of the virtual server to appear to involve a single IP address. The real servers may be interconnected by high-speed LAN or by geographically dispersed WAN. ![]() The real server topology is transparent to end users, and the users interact with the system as if it were only a single server with the IP address and port number of the virtual server. You can bind up to 8 real servers can to one virtual server. Session persistence is supported based on injected HTTP/HTTPS cookies or the SSL session ID. The load balancer can balance layer 7 HTTP, HTTPS, SSL, generic layer 4 TCP, UDP and generic layer 3 IP protocols. Traffic can be balanced across multiple backend real servers based on a selection of load balancing methods including static (failover), round robin, weighted to account for different sized servers, or based on the health and performance of the server including round trip time, number of connections. This in turn means that more simultaneous requests can be handled by the servers. By doing so, FortiOS enables multiple real servers to respond as if they were a single device or virtual server. You can configure FortiOS load balancing to intercept incoming traffic with a virtual server and distribute it among one or more backend real servers. How to use the FortiOS server load balancing to load balance traffic to multiple backend servers. ![]()
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