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This paper discusses the security aspects of the IETF Script MIB which integrates the Management by Delegation Model into the Internet Management Framework. The paper shows how SNMPv3 security mechanisms have been utilized to protect the Script MIB from unauthorized access. This paper also describes the security aspects of a prototype implementation which(More)
— SPam over Internet Telephony (SPIT) is expected to become a very serious issue in the next years. The threat is going to spin out from the well known email spam problem by bot nets being reprogrammed to initiate not just spam emails but also Voice over IP (VoIP) calls. Preventing SPIT is a new problem, because many well-established methods for blocking(More)
The Internet architecture is based on design principles such as end-to-end addressing and global routeability. It suits relatively static, well-managed and flat network hierarchies. Recent years have shown, however, that the Internet is evolving beyond what the current architecture can support. The Internet architecture struggles to support increasingly(More)
— In this paper, we describe the approaches taken in the 4WARD project to address the challenges of the network of the future. Our main hypothesis is that the Future Internet must allow for the fast creation of diverse network designs and paradigms, and must also support their coexistence at run-time. We observe that a pure evolutionary path from the(More)
Thread migration is established as a mechanism for achieving dynamic load sharing. However, fine-grained migration has not been used due to the high thread and messaging overheads. This paper describes a fine-grained thread migration system whose extensible event mechanism permits an efficient interface between threads and communications without(More)
This paper describes the design and implementation of INCA, an open architecture for the distributed management of multi-service networks and systems applications. The Intelligent Network Control Architecture is populated by stationary and mobile intelligent agents. These agents perform monitoring and control of network and systems components, thereby(More)
The IETF has developed several specifications for policy-based configuration management. In addition, an infrastructure for distributed management by delegation has been specified. This paper combines key concepts developed in these two efforts and proposes a policy-based configuration management architecture built upon the distributed management(More)
Multi-Protocol Label Switching (MPLS) is in the process of standardization by the Internet Engineering Task Force (IETF). It is regarded as a technology for traffic engineering and QoS in IP-networks. In this paper, we address the management of MPLS networks, which is crucial for large networks. We decided to follow the IETF Policy Framework approach and(More)
The Internet is currently evolving beyond what its architecture can support. Often, the mechanisms that allow the Internet to adapt to increasingly conflicting sets of new requirements break some of its basic design principles and can thus severely interfere with end-to-end communication. This paper recognizes that increased autonomy of network regions is a(More)