AD

• Administrative Distance is a measure of how trusted a routing protocol is compared to other protocols
  • However, AD does NOT determine which route a packet will take, only whether it is added to the routing table in the event of duplicate routes
• A lower AD means that a route is more trusted
• A floating static route is a static route with a higher AD than the preferred route
  • It is configured as a backup should the preferred route fail

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OSI or TCP/IP Layer

CCNA Exam Topic

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