Load balancer
From LVSKB
Load balancer is a type of computer or component that provides load balancing service. Load balancer assigns work loads to a set of networked computer servers or components in such a manner that the computing resources are used in an optimal manner, and provides high availability by detecting server or component failure and reconfiguring the system appropriately.
Introduction
Load Balancer Type
Web Load Balancer
Web load balancer is a type of computer or component used at web sites to balance the load across a set of web servers. The load balancer accepts an incoming HTTP request, and chooses a server to which it should be redirected.