OSPF - CISCO HELLO AND DEAD INTERVALS

Configuring Hello / Dead timer in Cisco IOS devices and how to verify and troubleshoot its operation.

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Video Description

Hello Interval Configuration:
ip ospf hello-interval [SECONDS]
Automatically the dead-interval is changed to match 4x Hello-Interval
Dead Interval Configuration:
ip ospf dead-interval [SECONDS]
Doesn't modify the Hello-Interval
Hello / Dead subsecond configuration:
ip ospf dead-interval minimal hello-multiplier [# of hellos per second]

Verification:
show ip ospf neighbors
show ip ospf int 
debug ip ospf events

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