Capacity assignment in networks; Capacity assignment in distributed network; Centralized networks: time delay-cost trade offs; Elements of queueing theory; Concentration and buffering in store-and-forward networks; Concentration: finite buffers, dynamic buffering, block storage; Centralized network design: multipoint connections; Network design algorithms; Routing and flow control; Polling in networks; Random access techniques; Line control procedures.

Datenpaketvermittlung, Telepac, Packet switching ; Verkehrstheorie, Verkehrsmessung (Telefonie) ; Netzwerk, Computernetzwerk, Systems Network Architecture, Open System Interconnection, SNA, OSI.

This book constitutes the refereed proceedings of the 8th International IFIP-TC6 Networking Conference, NETWORKING 2009, held in Aachen, Germany, in May 2000. The 48 revised full papers and 28 work-in-progress papers were carefully reviewed and selected from 232 submissions for inclusion in the book. The papers are organized in topical sections on Ad-Hoc Networks: Sensor Networks; Modelling: Routing & Queuing; Peer to peer: Analysis; Quality of Service: New Protocols; Wireless Networks: Planning & Performance; Applications and Services: System Evaluation; Peer to peer: Topology; Next Generation Internet: Transport Protocols; Wireless Networks: Protocols; Next Generation Internet: Network & Transport; Modelling and Performance Analysis: Infrastructure; Applications and Services: Streaming & Multimedia; Wireless Networks: Availability; Modelling and Performance Evaluation: Network Architectures; Peer to peer: Frameworks & Architectures; All-IP Networking: Frameworks; Next Generation Internet; Performance and Wireless.

A detailed and complete guide to exporting, collecting, analyzing, and understanding network flows to make managing networks easier. Network flow analysis is the art of studying the traffic on a computer network. Understanding the ways to export flow and collect and analyze data separates good network administrators from great ones. The detailed instructions in Network Flow Analysis teach the busy network administrator how to build every component of a flow-based network awareness system and how network analysis and auditing can help address problems and improve network reliability. Readers learn what flow is, how flows are used in network management, and how to use a flow analysis system. Real-world examples illustrate how to best apply the appropriate tools and how to analyze data to solve real problems. Lucas compares existing popular tools for network management, explaining why they don't address common real-world issues and demonstrates how, once a network administrator understands the underlying process and techniques of flow management, building a flow management system from freely-available components is not only possible but actually a better choice than much more expensive systems.

Congestion Control in Data Transmission Networks details the modeling and control of data traffic in communication networks. It shows how various networking phenomena can be represented in a consistent mathematical framework suitable for rigorous formal analysis. The monograph differentiates between fluid-flow continuous-time traffic models, discrete-time processes with constant sampling rates, and sampled-data systems with variable discretization periods. The authors address a number of difficult real-life problems, such as: optimal control of flows with disparate, time-varying delay; the existence of source and channel nonlinearities; the balancing of quality of service and fairness requirements; and the incorporation of variable rate allocation policies. Appropriate control mechanisms which can handle congestion and guarantee high throughput in various traffic scenarios (with different networking phenomena being considered) are proposed. Systematic design procedures using sound control-theoretic foundations are adopted. Since robustness issues are of major concern in providing efficient data-flow regulation in today’s networks, sliding-mode control is selected as the principal technique to be applied in creating the control solutions. The controller derivation is given extensive analytical treatment and is supported with numerous realistic simulations. A comparison with existing solutions is also provided. The concepts applied are discussed in a number of illustrative examples, and supported by many figures, tables, and graphs walking the reader through the ideas and introducing their relevance in real networks. Academic researchers and graduate students working in computer networks and telecommunications and in control (especially time-delay systems and discrete-time optimal and sliding-mode control) will find this text a valuable assistance in ensuring smooth data-flow within communications networks.