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Publications by Type: Technical Reports

IP network configuration for intradomain traffic engineering
Citation key FR-INCITE-00
Author Feldmann, Anja and Rexford, Jennifer
Year 2000
Month May
Note No. 000526-02
Institution AT\&T Research
Abstract Traffic engineering involves runing a network's path-selection, link-scheduling, and buffer-management policies to the prevailing traffic demands and performance requirements. Effective traffic engineering requires an accurate, network-wide view of the configuration of the routers. However, network operators have limited tools to aid in configuring diversity of network equipment, the large number of configuration options, and the interaction of configuration parameters across multiple routers. Manulal configuration of individual routers can introduce errors and inconsistencies with unforeseen consequences for the operational network. In this paper, we discuss a methodology for optaining an abstract, network-wide view of an IP backbone network that supports a wide variety of traffic-engineering tasks. We show how the network model can be populated from router configuration files and explain how, almost as a by-product, to check the correctness and consistency of the network configuration. Then, we describe the operational requirements on collection of the configuration data, evolution of the network model, and customization to a particular network. Finally, we describe the tool, netdb, that as been developed in colllaboration with AT\&T IP Services.
Bibtex Type of Publication Technical Memorandum
Link to publication Download Bibtex entry

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