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Our industry has made significant advances in supporting both advanced network topologiesa nd interconnected networks during the past several years. The traditional star networks are rapidly evolving into distributed amalgamations of subnetworks built on different networking technologies and often supplied by multiple vendors. Ownership and management of these networks may span organizational boundaries. A network might include, for example, the autonomous divisions of governmental or corporate organizations, a company, its customers, and the vendors serving the company, or perhaps a group of loosely affiliatede ducational institutions. The task of effectively managing such networks has become increasingly complex.
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