ospf database description packet

Master OSPF Packets Type: Essential Knowledge for Cisco Certification (Updated 2025)

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Open Shortest Path First (OSPF) is a powerful link-state routing protocol widely used in enterprise networks and a key topic for CCNA and CCNP certifications. OSPF relies on five distinct packet types to establish neighbor adjacencies, exchange routing information, and maintain a consistent Link-State Database (LSDB) across routers in an area. Understanding these OSPF packets—Hello,… Read more

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Link-State Routing Protocol

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Link-state routing protocols are also known as shortest-path first protocols. They maintain a complete picture of all the routers running a link-state routing protocol in the complete network. All routers running a link-state routing protocol originate information about themselves and their directly connected routers, links, and the state of those links as multicast messages. The

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