Increased demand for always-on service, coupled with the advent of complex clusterbased distributed computing, has rendered traditional software upgrade approaches such as simple cold restarts and split ISUs obsolete. For today's high-availability 24 x 7 networks, true in-service upgrades are an absolute requirement.

ISU is a complex function best delivered as part of a comprehensive middleware solution that has been architected, designed, and implemented with ISU in mind. The Enea Element platform delivers ISU as an integral part of a robust, proven HA middleware solution. This sophisticated, easy-to-use COTS solution gives equipment providers, platform providers, application developers, and integrators everything they need to quickly and cost effectively deliver scalable, portable ISU functionality.