Understanding SLB

Implementation Mechanism

This section describes the common concepts and principles of SLB.

Load Balancing Algorithms

Load balancing algorithms determine how the FW distributes traffic to servers. An appropriate load balancing algorithm brings desired load balancing effect.

HTTP Scheduling Policy

An HTTP scheduling policy determines how the FW distributes traffic to a server group. An HTTP scheduling policy and load balancing algorithm work together for better load balancing.

Sticky Session

The sticky session function enables the FW to allocate the traffic from one client to the same real server within a specific period of time.

Service Health Check

The service health check function checks whether services on a server are available to prevent traffic from being distributed to a server that does not function properly, which causes service interruption.