In OSPF, Hello packets are exchanged periodically between neighboring routers to establish and maintain adjacency relationships. On point-to-point (P2P) and broadcast networks, the default Hello interval is 10 seconds, while the default Router Dead interval is 40 seconds.
The Hello interval determines how frequently a router sends Hello packets to its neighbors. The Router Dead interval specifies how long a router waits without receiving Hello packets before declaring its neighbor unavailable.
For a normal OSPF adjacency, neighboring interfaces must have compatible Hello and Dead timer settings. Mismatched timer values can prevent adjacency establishment.
Huawei ' s training material identifies 40 seconds as the default OSPF Dead timer. Technologies such as Bidirectional Forwarding Detection (BFD) can provide faster fault detection without requiring excessively short OSPF Hello intervals.
Therefore, the statement is TRUE.
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Training Material.pdf
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