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OSPF uses the hello and dead interval to check if a remote neighbor is still alive. This lesson explains how to tune these timers.

2016/2/23 -OSPF hello packets are packets that an OSPF process sends to its OSPF neighbors to maintain connectivity with those neighbors. The hello packets ...

A HELLO packet is a special data packet (message) that is sent out periodically from a router to establish and confirm network adjacency relationships to other ...

2023/8/3 -The dead interval specifies the length of time, in seconds, that the routing device waits before declaring that a neighbor is unavailable. This ...

2024/3/2 -A Hello packet contains all the information that another OSPF router needs to decide whether it forms a neighborship with the sending router.

OSPF routing devices constantly track the status of their neighbors, sending and receiving hello packets that indicate whether each neighbor still is ...

By default: The hello interval on P2P and broadcast interfaces is 10 seconds. The hello interval on P2MP and NBMA interfaces is 30 seconds.

Specifies the time interval for the hello interval, in seconds. Range: 1 to 65535. Default: 10. Authority. Administrators or local user group ...

The OSPF Dead interval is announced in OSPF hello packets. It is the amount of time during which the router waits to receive at least one hello packet from a ...

Timers in OSPF are like the timers in EIGRP, you have a Hello timer and a Dead timer. The hello timer is the interval at which the routing process sends hello ...