![[Day#1b PyATS Series] Step-by-Step: Install pyATS in PyCharm (Ubuntu) [Python for Network Engineer]](https://networkjourney.com/wp-content/uploads/2025/07/Day_1b-PyATS-Series-Step-by-Step-Install-pyATS-in-PyCharm-Ubuntu-Python-for-Network-Engineer.png)
If you’re exploring Python for Network Engineers, mastering tools like pyATS is a game-changer for automating network testing and validation. This guide walks you through setting up pyATS in PyCharm on Ubuntu, step by step, so you can build robust network automation workflows with confidence. […]
![Ticket#5 - OSPF Neighbor Stuck in INIT/2WAY – How to Diagnose and Resolve [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-Ticket-5.jpg)
Problem Summary An enterprise network reported intermittent OSPF adjacency issues between two routers in Area 0. Routing updates were not exchanged, leading to blackholing of traffic to remote branches. After multiple resets, the OSPF neighbor relationship remained stuck in INIT or 2WAY states. Ping between […]
Problem Summary A ticket was raised from the IT Helpdesk reporting that critical application servers hosted in the data center VLAN 130 were not reachable. Multiple users across departments couldn’t access internal services or ping the application server IP 10.130.10.10. This seemed like a routing […]
![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)
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 […]
![Ticket#14 - OSPF Routes Missing: Area Type Mismatch (Stub vs NSSA) Fixed [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/07/Ticket14_OSPF-Routes-Missing-Area-Type-Mismatch-Stub-vs-NSSA-Fixed_networkjourney.png)
Problem Summary An enterprise network running OSPF faced missing routes in one part of the topology. The issue was traced to an OSPF area type mismatch — one router was configured as a Stub area, while its neighbor was configured as NSSA (Not-So-Stubby Area). This […]
Today we’re talking about one of the most foundational yet misunderstood topics in networking—Control Plane vs Data Plane. I can’t tell you how often I’ve seen even experienced engineers mix up the two, especially when jumping into technologies like SD-WAN, SDN, and Cisco DNA Center. […]
