Towards autonomic networking and selfconfigurating routers

IP Networks, and particularly the Internet, were proposed to be a simple and robust support for heterogeneous communications. This implies that only basic controls have to be done by network elements. Connection management, along with transport, and more generally communication management, has to be done by the terminals. For example, error detection mechanisms, error recovery mechanisms with “Slow Start”, are implemented within the transport protocol, managed by the terminals. However, integration of new services and increasing need for QoS require the network to be more and more flexible and adaptive. New algorithms and protocols are then proposed to address these issues, and include new configuration layers. Manual configuration of such network architectures is then very complex, if not impossible. We think that future core network elements will have to be more adaptive, but also more autonomic. Autoconfiguration is indeed a necessary condition to integrate new services in the network. We believe that autoconfiguration requires new knowledge provisioning and computing policies. This paper then presents an architecture of software agents, collaborative and autonomic. These agents are embedded inside the routers. Their role is to share local and situated knowledge, in order to control and optimize the existing control mechanism of the router.5th IFIP International Conference on Network Control & Engineering for QoS, Security and MobilityRed de Universidades con Carreras en Informática (RedUNCI

Agent-based self-management of MPLS DiffServ-TE domain

MPLS DiffServ-TE presents the solution awaited so much by the network service providers by allowing a differentiation of services and a traffic engineering based on a fast packet switching technology. However, the management of such a network is not a simple function and could not be done manually. In this paper, we propose a novel architecture based on the Multi-Agent Systems (MAS) capable of managing automatically MPLS DiffServ-TE domains. Based on the network states, our intelligent agents take the appropriate decisions. They, for example, reconfigure the network accordingly5th IFIP International Conference on Network Control & Engineering for QoS, Security and MobilityRed de Universidades con Carreras en Informática (RedUNCI

Towards autonomic networking and selfconfigurating routers

IP Networks, and particularly the Internet, were proposed to be a simple and robust support for heterogeneous communications. This implies that only basic controls have to be done by network elements. Connection management, along with transport, and more generally communication management, has to be done by the terminals. For example, error detection mechanisms, error recovery mechanisms with “Slow Start”, are implemented within the transport protocol, managed by the terminals. However, integration of new services and increasing need for QoS require the network to be more and more flexible and adaptive. New algorithms and protocols are then proposed to address these issues, and include new configuration layers. Manual configuration of such network architectures is then very complex, if not impossible. We think that future core network elements will have to be more adaptive, but also more autonomic. Autoconfiguration is indeed a necessary condition to integrate new services in the network. We believe that autoconfiguration requires new knowledge provisioning and computing policies. This paper then presents an architecture of software agents, collaborative and autonomic. These agents are embedded inside the routers. Their role is to share local and situated knowledge, in order to control and optimize the existing control mechanism of the router.5th IFIP International Conference on Network Control & Engineering for QoS, Security and MobilityRed de Universidades con Carreras en Informática (RedUNCI

Agent-based self-management of MPLS DiffServ-TE domain

MPLS DiffServ-TE presents the solution awaited so much by the network service providers by allowing a differentiation of services and a traffic engineering based on a fast packet switching technology. However, the management of such a network is not a simple function and could not be done manually. In this paper, we propose a novel architecture based on the Multi-Agent Systems (MAS) capable of managing automatically MPLS DiffServ-TE domains. Based on the network states, our intelligent agents take the appropriate decisions. They, for example, reconfigure the network accordingly5th IFIP International Conference on Network Control & Engineering for QoS, Security and MobilityRed de Universidades con Carreras en Informática (RedUNCI

Factors that May Influence the Performance of Wireless Sensor Networks

International audienc

Intelligent Features Within the J-Sim Simulation Environment

International audience; This paper presents our approach integrating a high level of intelligence within telecommunication networks. Artificial intelligence has proved its efficiency in resolving complex issues in different fields like air traffic control, robotics, and medical diagnosis. However its usage in telecommunication networks is still very moderated. The main objectives of our framework is to encourage the deployment of techniques characterized by a high level of intelligence – inspired from the artificial intelligence domain in networking. For this reason, we build an extension, with intelligent capabilities, to the J-Sim simulation environment. This extension proposes an intelligent package having the essential entities required for simulating intelligent features. Using this intelligent package and the abstract node model (INET) proposed by J-Sim for network simulations, it will be possible to test the efficiency of integrating intelligent techniques in networking. Document type: Part of book or chapter of boo

A Differentiated Services API for Adaptive QoS Management in IP Networks

The introduction of quality of service in IP Networks brings solutions to real time applications requirements over Internet. Because of its simplicity, Differentiated Services architecture proposed by the Internet Engineering Task Force (IETF) is becoming the most employed solution for providing end-to-end QoS (Quality of Service) to network based applications. However, tuning QoS parameters in edge and core routers of a DiffServ domain for efficient resource utilization and stable network behavior is not an easy task. Because of the unpredictable and dynamic behavior of the Internet traffic, network entities need to take fast decisions and perform fast adaptations for the provision of adequate end-to-end QoS. This paper proposes an Application Programming Interface for near real time bandwidth allocation and parameters tuning of DiffServ queues in Cisco routers as a first step to address to the aforementioned problem

MANAGEMENT OF RESCUE AND RELIEF OPERATIONS USING WIRELESS MOBILE AD HOC TECHNOLOGY

In this paper, we explore the vital rescue and relief application of wireless mobile ad hoc networks for the emergency situations. The self-organizing and decentralized features of ad hoc networks make them suitable for a wide variety of applications. We propose to study the efficiency of some routing and MAC protocols under the Client-Server architecture. The presence of dynamic and adaptive routing and MAC protocols will enable ad hoc networks to be formed quickly, and then to ensure efficient and reliable communications during the rescue operations. Extensive simulations have been realized to show the impact of both the routing and MAC choice over multiple QoS parameters (delay, throughput, energy, etc.) in small and large scales rescue areas. We conclude the paper by some remarks that may be very useful for government agencies working on the emergency situations to enhance the efficiency of rescue and relief operations using ad hoc networks