The objective of this work is to propose an architectural solution to achieve an efficient, distributed control and management of DiffServ enabled networks. DiffServ offers a scalable QoS provisioning solution but it introduces a certain amount of complexity in terms of management and control. The proposed solution is an alternative to the client/server policy-based approach put forward by the IETF, which assumes that complete predefined instrumentation is already implemented in DiffServ nodes. In this work, we suppose that DiffServ nodes offer an API with a minimum number of control functions. Based on this assumption, the proposed solution introduces a new control architecture to configure and control these nodes in a customized and flexible manner.