Explanation of States of OSPF

Question

Accepted Answer

OSPF has 8 states: Down, Init, 2-Way, ExStart, Exchange, Loading, Full, and Neighbor.

OSPF has 8 states in the adjacency process
Down state is when the interface is not participating in OSPF
Init state is when the router is trying to establish a neighbor relationship
2-Way state is when bidirectional communication is established
ExStart state is when routers exchange initial database information
Exchange state is when routers exchange link-state advertisements
Loading state is when routers exchange link-state advertisements
Full state is when routers have exchanged all link-state advertisements and are fully adjacent
Neighbor state is when routers are fully adjacent and can exchange routing information

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