Felix Strohmeier

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This paper discusses the application of measurement-based admission control methods for efficient resource utilization in the premium variable bit rate service of the AQUILA QoS IP network. The design of the architecture for measuring aggregate mean bit rate to support admission control is presented together with the results of testbed experiments with the(More)
Advanced architectures for performance analysis of QoS enabled applications and services need to integrate different components which are not only concerned with the end-to-end QoS measurement and monitoring, but also with network path performance analysis and QoS modeling. Additionally, the performance analysis for QoS enabled applications and services(More)
The paper proposes meta-data models for information about public repositories of measurement and monitoring data and tools. The meta-data model consists of a set of attributes, which describe the features of the actual data of interest. The discussed meta-data models constitute a base for the advanced meta-repository of measurement tools and data, which was(More)
This paper presents the CM toolset active monitoring toolkit based on the controlled interaction between different components and integrated data base to support longterm QoS analysis in large scale Internet. Initially developed in the AQUILA EU project for QoS /SLA monitoring, the CM Toolset was enhanced in INTERMON EU project with new facilities for(More)
The increase of traffic in IP networks, leads operators to search for efficient tools to monitor it in order to support QoS. Several infrastructures to measure traffic and monitor routing have been deployed but SLA can not rely on them because of their lack of interoperability. MOMENT project is currently developing a mediator to access most of available(More)
In this work we describe a methodology to estimate one-way packet loss from IPFIX or NetFlow flow records collected at two monitoring points. The proposed method does not require tight synchronization between the two monitoring points, nor it relies upon external routing information. It can run online or offline, and can work on legacy IPFIX/NetFlow traces(More)
In this paper we present a flow-based method to evaluate network performance based on round-trip time (RTT). Using passively gathered flow-based data has advantages in both, performance and privacy, compared to active methods or passive packet-based approaches. The proposed algorithm is able to work on legacy Netflow v9 and IPFIX data, without being(More)
The paper describes the Data Analysis Workstation developed by the IST project MOME (Monitoring and Measurement Cluster). The MOME project maintains the repository of information about publicly available measurement data, like e.g. packet traces, flow traces, routing data, and others. The collected information includes the detailed description of an assumed(More)
Deliverable D21 documents the design process of the MOME Database, which will store the information about raw measurement data repositories. The design process was started with a study of the state of the art, which showed that most projects with similar goals have opted for a meta-database model which provides links to the original data sources as well as(More)