Today we’re going to tackle one of the most crucial yet often misunderstood parts of OSPF—LSA Types. When I train CCNA and CCNP candidates, many get confused with when and where to use Type 1 vs Type 3 or what the heck Type 7 LSAs […]
![OSPF LSA Types Explained: Complete Guide with CLI, EVE-NG Lab & Real-World Use Cases. [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/OSPF-LSA-Types-Explained_Complete-Guide-with-CLI-EVE-NG-Lab-Real-World-Use-Cases_networkjourney.png)
![OSPF Area Types Explained: Stub, Totally Stubby & NSSA with CLI, Lab & Real-World Use Cases. [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/OSPF-Area-Types-Explained_Stub_Totally-Stubby_NSSA_networkjourney.png)
If you’ve ever felt confused by OSPF area types—like what makes an area “Stub,” “Totally Stubby,” or “NSSA”—you’re not alone. Many of my CCNP Enterprise trainees get tripped up on these terms, especially when it comes to LSA propagation and route filtering across areas. That’s […]