Mechanisms for Diameter service performance enhancement

One of the basic requirements of service providers is to deliver fast processing, highly available, scalable, redundant and unobtrusive AAA services. In this paper we present incorporation of Diameter service into a legacy switching system. Our approach is based on a component architecture and the use of open source software to speed-up the development cycle. The main idea is to multiply critical nodes/interfaces with optional state replication thus avoiding single point of failure in the system and providing full redundancy of the service. We specifically discuss mechanisms that lead to performance improvements and present results proving the concept.