OSPF Labs

Scalable routing starts with smart protocols—and OSPF is one of the smartest. These labs dive into Open Shortest Path First (OSPF), a link-state routing protocol designed for efficiency and scalability. From configuring single-area and multi-area OSPF to assigning router IDs, creating loopback interfaces, and analyzing neighbor relationships, each lab mirrors the dynamic routing challenges found in real-world networks. These exercises showcase my ability to build resilient Layer 3 topologies that adapt quickly to network changes and optimize path selection..

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Networking Labs

OSPF Configuration and Default Route Advertisement

OSPF

Configured basic OSPF on four routers with loopback interfaces, passive-interface rules, and a default route advertisement to demonstrate OSPF adjacency, LSDB structure, and routing behavior.

Skills Demonstrated:

Creating and configuring loopback interfaces
Configuring OSPF using multiple approaches
Setting OSPF passive interfaces for non-routing interfaces
Advertising a default route using default-information originate
Understanding OSPF router ID selection
Using OSPF show commands to analyze protocol behavior
Verifying full OSPF neighbor adjacency and LSDB contents
Observing route propagation and load balancing via OSPF metrics

OSPF Neighbor Troubleshooting

OSPF

Configured OSPF across a multi-router topology and resolved adjacency, timer, and default route issues to ensure full route propagation and external connectivity.