In this paper we address the architecture of an efficient connection manager in hierarchical dynamic virtual private networks (HDVPN). HDVPNs encapsulate the delivery over a WAN of concurrent multicast sessions with security and QoS guarantees. Their main feature is a high degree of change in terms of membership, implying the necessity for fast reconfiguration and provisioning. We propose a Management Configuration Component based on already proven design patterns in order to cope with the high dynamicity encountered. The more general framework is the management of residential user TV multicast, where an heterogeneous ATM/IP based network supports the delivery of TV content to all clients having subscribed to a HDVPN.