OSPF Troubleshooting — CCNA 200-301 | Packet Tracer Lab

OSPF troubleshooting in Cisco Packet Tracer — CCNA 200-301. Deliberately break OSPF adjacency four different ways and fix each one using show commands. Timestamps: 00:00 Free Study Resources, Labs & Quizzes (PacketMentor) 00:35 Link State Advertisements (LSAs) 01:04 OSPF Area types 01:37 OSPF Router types 02:12 Understand the topology 02:37 Failure 1 — mismatched Hello/Dead timers + fix 06:00 Failure 2 — passive-interface on router link + fix 08:55 Failure 3 — router id is same + fix 09:45 Failure 4 — wrong OSPF area + fix Commands used: show ip ospf neighbor · show ip ospf interface ip ospf hello-interval [sec] · ip ospf dead-interval [sec] ip ospf priority [0-255] router-id · network [network] [wildcard] area [id] Watch OSPF Basic Config first → Tuesday's video →    • OSPF Configuration Lab — CCNA 200-301 | Ci...   Full CCNA playlist →    • CCNA Fundamentals — Full Course | Packet M...   Free structured CCNA sessions → https://packetmentor.com #CCNA #OSPF #OSPFtroubleshooting #MultiAreaOSPF #PacketTracer #CCNA200301 #CiscoNetworking #DRBDR #PacketMentor #CiscoLab