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Abstract : |
Device failures, performance inefficiencies, and security compromises are some of the problems associated with the operations of networked systems. Effective management requires monitoring, interpreting, and controlling the behavior of the distributed resources. Current management systems pursue a platform-centered paradigm, where agents monitor the system and collect data, which can be accessed by applications via management protocols. We contrast this centralized paradigm with a decentralized paradigm, in which some or all intelligence and control is distributed among the network entities. Network management examples show that the centralized paradigm has some fundamental limitations. We explain that centralized and decentralized paradigms can and should coexist, and define characteristics that can be used to determine the degree of decentralization that is appropriate for a given network management application., |