Sigtran user adaptation proxy load balancer

摘要

In a switched circuit telephone network implementing an SS7 protocol with out-of-band signaling for call establishment, the specification discloses a proxy load balancer coupled between a signaling gateway and application server processes running application services. The proxy load balancer receives signaling messages from the signaling gateway directed to an application server process running an application service, and forwards that signaling message to one of two or more application server processes, each running the application service. In this way, additional application server processes may be installed in the system without reconfiguration or even knowledge of the signaling gateway. The proxy load balancer appears as a single application server process running an application service to the signaling gateway, and correspondingly appears as a signaling gateway to the two or more application server processes running application services downstream of the proxy load balancer.