This paper describes the application of a general purpose object-oriented software engineering method to the design of a bandwidth management system for ATM-based virtual private networks (VPNs). Such a system allows a VPN customer to dynamically modify the bandwidth allocated to VPN connections. The design process has focused on the service management information model and interfaces required to provide that service to the customer. Object interaction graphs have been designed and class descriptions have been derived. Finally the VPN customer, value added service provider and network providers service management system interfaces have been designed and corresponding primitives are given.'
This paper describes the specification of a management architecture allowing virtual private network (VPN) customers to dynamically modify the configuration of their VPN. The specification has been structured according to the ODP viewpoints. A special emphasis has been laid on how changes in the logical VPN configuration affect or are reflected in the underlying physical networks. As a result, an informational and a computational VPN configuration management architecture have been developed illustrating how processing and data can be distributed between the different layers and domains composing the architecture.
The complellity of networked systems calls for their management. The ODP fra me work based on viewpoi nts provides powerful concepts to support the specification and design of distributed systems, but without fully considering their management. In order for ODP to avoid re-inventing the wheel with regard to management, the results of network management standards that we have structured in terms of models should be integrated in the ODP framework. Therefore, this paper defines the mapping between the network management models and the ODP viewpoints. Emphasis lies on the realization of a connection management function using the proposed method.
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