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Administrative Distance Definition: Administrative Distance: A metric used in routing protocols to determine the reliability of a route, with lower values indicating more trusted routes over higher values.
Administrative Distance in networking refers to a measure used to select the best path when multiple routing protocols are present. It is a value assigned to each routing protocol by a router to indicate its trustworthiness. A lower administrative distance indicates a higher preference for that routing source, and the router will choose routes with the lowest administrative distance value. This helps in determining which route should be added to the routing table when there are multiple sources providing information about the same destination.