An Implementation Model of Policy Based DiffServ Quality of Service Management System

DiffServ is a technique to provide QoS in an efficient and scalable way. However, DiffServ model does not provide a complete QoS management framework and its implementation model. This paper proposes an implementation model that supports DiffServ policies for managing QoS of DiffServ networks. The implementation model is conform to MVC model, and based on IETF policy framework and EJB technologies. DiffServ QoS policies are represented as valid XML files and translated to low-level EJB policy beans in the EJB container of the DiffServ QoS management system. The low-level policy beans consist of Classifier policy, Meter & Action policy, and Queuing & Scheduling policy. These Policies are distributed using SNMP to control and monitor QoS of DiffServ networks. To support this work, we implemented the SNMP DiffServ agent containing DiffServ MIB on the Linux-based DiffServ routers. The proposed implementation model is on developing in our laboratory.