Implementation and Performance Evaluation of a P2PSIP Distributed Proxy/Registrar

In this paper, the design of a distributed proxy/registrar based on distributed hash tables is discussed. Three implementations, relying on OpenChord and Bamboo, are presented, and two of them are thoroughly tested in registration and call scenarios. In a distributed configuration with load-balancing, this distributed proxy/registrar manages to handle 1,500+ REGISTER requests per second and 700+ call attempts per second. These performance show that P2PSIP is a valid option for large, decentralized set-ups.