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OSPF - Coggle Diagram

- - - - Send Hello interval ( and wait for Dead interval, x4 times than Hello interval): include RID (router identifier) 32 bit number, send through multicast address 244.0.0.5, create 2-way state
      - Exchange LSU (Link State Update) includes many LSAs (Link State Advertisements)
      - Maintain neighbors and the LSDB: Hello Interval, Dead Interval; flooding LSAs occationally
- - - - show running-config
        show ip protocols
        show ip ospf interface
        show ip ospf interface (type number)
        show ip ospf interface brief
        show ip ospf neighbor
        show ip ospf neighbor (type number)
        show ip ospf database
        show ip route
        show ip route ospf
        show ip route (subnet mask)
        show ip route | section (subnet)