9 research outputs found

    Results of the SURFnet4 management project 1997

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    This technical report bundles the five reports that were written for two SURFnet4 projects in 1997. Each report discusses a different research aspect of the SURFnet4 ATM network. The topics are 1) the Architecture of a ATM PVC Management Tool, 2) Reporting on the Use of the ATM Network, 3) SVCs in a Production Environment, 4) Quality of Service Measures, 5) Operation and Maintenance (OAM)

    Initial service management architecture

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    This document describes D2.2 of the Internet Next Generation project. Internet Next Generation is a project performed within the context of the Gigaport programme, and is funded by many organizations within the Netherlands. The architecture that is described within this document explains how customers of a Differentiated Services (DiffServ) network can manage the service that is provided by them, by reading and modifying QoS parameters in an interactive way. Which parameters are available and which values these parameters can take, is defined in the Service Level Specification (SLS), which is part of the Service Level Agreement (SLA). The form of management in which customers can modify the behaviour of the provided service is called Customer Service Management (CSM); the idea that customers can manage the behaviour of the provided service is not only interesting in case of DiffServ, but also in cases like Mobile IP, IP security or Virtual Private Networks (VPNs). The scope of this deliverable is restricted to QoS management in a DiffServ environment; a subsequent deliverable will extend this work and address how service .management can be performed in other environments, like IntServ / RSVP. This new deliverable will also address the problem of inter domain management

    IT lessons learnt from real time dike monitoring

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    The Dutch lowlands are protected by many kilometres of dikes. Currently these dikes are visually inspected on a regular basis. During heavy weather this frequency is raised, up to 24/7 in very extreme situations. After a dike failure at the Dutch town Wilnis in 2003, the question was raised whether modern sensor technology could be used to assess extra information on dike conditions. To answer this question, different experiments have been conducted in order to gain more knowledge about dike failure mechanisms and to validate real time sensor dike monitoring in existing dikes. Based on these use cases, this paper presents several IT lessons learnt and future IT challenges concerning data storage, anomaly detection and dike stability models in relation to CPU power usage for small, medium and large scale dike monitoring

    Management of the SURFnet4 ATM Network

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    Initial service management architecture

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    This document describes D2.2 of the Internet Next Generation project. Internet Next Generation is a project performed within the context of the Gigaport programme, and is funded by many organizations within the Netherlands. Details of the Internet Next Generation project can be obtained from http://ing.ctit.utwente.nl/. The architecture that is described within this document explains how customers of a Differentiated Services (DiffServ) network can manage the service that is provided by them, by reading and modifying QoS parameters in an interactive way. Which parameters are available and which values these parameters can take, is defined in the Service Level Specification (SLS), which is part of the Service Level Agreement (SLA). The form of management in which customers can modify the behaviour of the provided service is called Customer Service Management (CSM); the idea that customers can manage the behaviour of the provided service is not only interesting in case of DiffServ, but also in cases like Mobile IP, IP security or Virtual Private Networks (VPNs). The scope of this deliverable is restricted to QoS management in a DiffServ environment; a subsequent deliverable will extend this work and address how service management can be performed in other environments, like IntServ / RSVP. This new deliverable will also address the problem of inter domain management. This deliverable is strongly related to: • the IETF work on policy based management and configuration management. The particular contribution of this deliverable is that it explicitly describes an architecture and discusses the differences between the COPS/PIBs and SNMP/MIBs approach. • the Internet-2 QBone project, in particular the work on the Bandwidth Broker

    Risk Factors and Impact of .BETA.-D Glucan on Invasive Fungal Infection for the Living Donor Liver Transplant Recipients

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