2 hands-on DR/BDR scenarios you build in your own Cisco Modeling Labs instance and grade against the answer key. DR/BDR configuration and troubleshooting practice for CCNA and CCNP.
Three IOS routers share a true broadcast multi-access segment through a Layer-2 switch. You will deploy OSPFv2, influence the DR/BDR election using interface priorities, and verify full adjacencies to the DR. An alpine client behind RTR-HQ-R3 must reach loopbacks on RTR-HQ-R1 and RTR-HQ-R2 via OSPF-learned routes. The lab emphasizes proper multi-access deployment hygiene (router-ids, passive default, interface selection) and realistic verification from the end host.
Hands-on CCNP OSPF lab comparing broadcast and point-to-point network types. Three routers share a multi-access Ethernet via an access switch to observe DR/BDR election, manipulate interface priorities, and then convert to point-to-point. Includes a user LAN behind R1 and realistic troubleshooting: neighbor stuck in 2-Way due to type mismatch, area mismatch isolating a router, and incorrect interface priority preventing desired DR/BDR roles.
