Which type of OSPF packet is used by a router to discover neighbor routers and establish neighbor adjacency?

Last Updated: May 8, 2026
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Which type of OSPF packet is used by a router to discover neighbor routers and establish neighbor adjacency?

  • link-state update
  • hello
  • database description
  • link-state request

Explanation: The Hello packet (OSPF Type 1) is specifically used to discover neighbors and establish neighbor adjacencies between OSPF routers. These packets are sent out of OSPF-enabled interfaces to identify neighboring routers and to advertise parameters that both routers must agree upon before sharing routing information.

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