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![MST Region Configuration Explained: Streamlining Spanning Tree for Scalable Networks [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/MST-Region-Configuration-Explained_Streamlining-Spanning-Tree-for-Scalable-Networks_networkjourney.png)
Today I want to make your STP game stronger with a concept that often confuses even seasoned engineers: Multiple Spanning Tree (MST) Region Configuration. If you’ve worked with classic STP or even Rapid-PVST, you know how tricky it gets as your network grows. MST brings […]
![MAC Address Table Lookup Deep Dive: Mastering Switch-Level Visibility [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/MAC-Address-Table-Lookup-Deep-Dive_networkjourney.png)
If you’ve ever faced a scenario where you’re asking, “Where is this device plugged in?”, then you know how crucial the MAC Address Table Lookup is. Whether you’re chasing down rogue devices, optimizing switch performance, or preparing for CCNP exams, knowing how to navigate the […]
![VTP Modes Explained: Master Server, Client & Transparent Mode with Labs & CLI. [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/VTP-Modes-Explained-Master-Server-Client-Transparent-Mode_networkjourney.png)
Today I want to take you back to a real-world scenario from one of my classroom labs. A student configured VLANs on one switch, expecting them to magically appear on the others—but nothing worked. The culprit? Misunderstood VTP modes. If you’re building scalable LANs or […]
![VLAN Creation_Troubleshooting_Complete Hands-On Guide with EVE-NG Lab_[CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/VLAN-Creation_Troubleshooting_Complete-Hands-On-Guide-with-EVE-NG-Lab_networkjourney.png)
Everything seemed easy on paper until the first trunk port failed, and the whole lab collapsed. That’s when I realized: configuring VLANs is one part, troubleshooting them is another beast altogether. In this post, I’ll walk you through VLAN creation, CLI commands, real-world cases, and […]
![The Hidden Superpower of Routers – Master Virtual Routing & VRF Today [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/The-Hidden-Superpower-of-Routers-–-Master-Virtual-Routing_VRF-Today_networkjourney.png)
I know how confusing “virtual routing” can sound when you’re just starting to dive deep into enterprise network architecture. Believe me, I’ve been there. When I first stumbled upon concepts like VRF and virtual routers, I thought, “Is this just another fancy way to complicate […]
![Overlay Technologies for CCNP Enterprise: The Complete 2025 Guide with Labs, CLI & Exam Relevance [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/Overlay-Technologies-for-CCNP-Enterprise_networkjourney.png)
If you’re preparing for the CCNP Enterprise certification, there’s no escaping the importance of Overlay Technologies. Whether you’re tackling the ENARSI exam or diving deep into advanced enterprise network design, mastering overlays like VXLAN, GRE, LISP, and MPLS is critical. In this blog, we’ll take […]
![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 […]
![Storm Control Configuration on Cisco Switches: Preventing Broadcast & Multicast Floods. [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/Storm-Control-Configuration-on-Cisco-Switches_networkjourney.png)
If you’ve ever seen your network grind to a halt because of broadcast storms or weird traffic floods, I totally feel your pain. Early in my career, I was once called into a client’s office where the entire network had slowed to a crawl. The […]
![Mastering PortFast, BPDU Guard & Loop Guard: STP Protection Techniques Explained with Lab & CLI. [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/Mastering-PortFast-BPDU-Guard-Loop-Guard_networkjourney.png)
If you’ve ever faced STP loops or mystery link flaps in your switching network, you know how frustrating it can be. Early in my networking career, I once spent hours chasing down a looping issue—only to find that someone plugged in a cable between two […]
![LACP vs PAgP: Cisco EtherChannel Types Explained with CLI & EVE-NG Lab [2025]. [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/LACP-vs-PAgP_-Cisco-EtherChannel-Types-Explained-with-CLI_networkjourney.png)
One of the most common things I hear from learners in my CCNA/CCNP classes is: Why does EtherChannel break sometimes even though the cables are good? Well, the answer often lies in how you bundle those links—whether it’s LACP or PAgP, manual or dynamic. This […]
