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BDR - Backup Designated Router

The BDR is used to provide redundancy in broadcast networks which are utilizing the OSPF (Open Shortest Path First) routing protocol. Should the Designated Router fail, the BDR, which like the DR is also adjacent to all routers, will take over.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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