load balancer

This term is primarily used in technical contexts involving network architecture and cloud computing. It describes a mechanism for achieving high availability and reliability by preventing any single resource from becoming a bottleneck. While it can refer to a physical hardware appliance, it frequently refers to software-defined networking (SDN) solutions in modern virtualized environments.

In professional discourse, the term is often paired with specific strategies such as round-robin or least-connections, which dictate how the traffic is distributed. It is distinct from a proxy server, although many load balancers function as reverse proxies to manage incoming requests.