Network, Networking Technology, Data Communication Terms, Glossary and Dictionary

Administrative Distance

Administrative distance is the feature used by routers to select the best path when there are two or more different routes to the same destination from two different routing protocols. Administrative distance defines the reliability of a routing protocol. Each routing protocol is prioritized in order of the most to the least reliable (believable) using an administrative distance value. Administrative distance often is expressed as a numerical value between 0 and 255. The higher the value, the lower the trustworthiness rating.

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Administrative Distance