Let’s be honest. At some point, we’ve all created a flat network with just a few VLANs and thought — “Yeh toh kaafi secure hai.” Until… a misconfigured ACL or open port lets someone pivot from the user segment to your server VLAN — and […]
![Security Zones Explained: From Flat Networks to Fortresses [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-security-zone.jpg)
![Route Maps vs Prefix Lists – A Deep Dive for Real-World Networking [ CCNP ENTERPRISE ]_networkjourney](https://networkjourney.com/wp-content/uploads/2025/06/Route-Maps-vs-Prefix-Lists-–-A-Deep-Dive-for-Real-World-Networking-CCNP-ENTERPRISE-.png)
If you’ve ever sat there staring at your router’s CLI wondering whether to use a route map or a prefix list, you’re not alone. I’ve seen many students — even working professionals — struggle with this subtle yet powerful decision. Today, I’ll walk you through […]
![Accelerate STP Convergence with UplinkFast and BackboneFast [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/Accelerate-STP-Convergence-with-UplinkFast-and-BackboneFast_networkjourney.png)
If you’re someone preparing for your CCNP or trying to optimize a real-world network, you’ve probably heard about UplinkFast and BackboneFast—two hidden gems in the Spanning Tree Protocol (STP) world. I’ve seen many networks struggle with convergence times due to unnecessary delays, and that’s exactly […]
![Mastering Layer 2 Troubleshooting Commands: A Complete Guide with CLI & EVE-NG Labs [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/Mastering-Layer-2-Troubleshooting-Commands_networkjourney.png)
Today we’re diving into something every network engineer must master—Layer 2 Troubleshooting. Whether you’re preparing for CCNP or resolving critical enterprise network issues, knowing the right CLI commands can make all the difference. In this post, we’ll walk through key Layer 2 concepts, explore essential […]
![Redundancy Unleashed: Keeping Enterprise Networks Always-On [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/Redundancy-Unleashed_-Keeping-Enterprise-Networks-Always-On_networkjourney.png)
I’ve seen too many organizations suffer massive outages due to a single point of failure—sometimes because of a downed switch, a failed uplink, or even a misconfigured router. In this post, I’ll walk you through the core theory, practical CLI, real-world use cases, and a […]