Automated Root Cause Analysis for IMS and SDP

Next Generation Network (NGN) research initially focused on access network convergence by harmonizing the session control plane, giving birth to the IP multimedia subsystem (IMS). Shortly after, the focus shifted towards the NGN service plane, generating versatile and flexible IMS-based service delivery platforms which predominantly are designed according to service oriented architecture (SOA) principles. These NGN service environments usually comprise a multitude of service enablers that allow for dynamic service compositions. This work focuses on manageability aspects of NGN service composition, investigating active monitoring mechanisms for root cause analysis. It will quantify the improvements brought by service dependency information into the fault localization and fault recovery process. NGN testbed evaluations furthermore analyze the impact of different monitoring policies on the overall fault management performance.