Saturday, June 23, 2012

OSPF Network Types

  • Broadcast : This network type uses 224.0.0.5 and 224.0.0.6, DR/BDR election is done between the neighbors.
  • Point-to-point: This network type uses multicast address 224.0.0.5 and no DR BDR election is performed between the neighbors
  • Point-to-Multipoint:  This network type uses multicast address 224.0.0.5 and no DR BDR election is performed between the neighbors. Hosts installs /32 routes for the endpoints.
  • Non-Broadcast: This network type used unicast instead of multicast. Neighbors needs to be defined statically and DR/BDR elections is done.
  • Point-to-Multipoint Non Broadbcast: Attributes of both Point-to-multipoint and Non-broadcast networks.

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