![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 […]
![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 […]
![STP Root Bridge Election Explained: Priority, MAC & CLI Examples [2025]. [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/STP-Root-Bridge-Election-Explained_Priority_MAC_CLI-Examples_networkjourney.png)
When I first started learning about Spanning Tree Protocol (STP), I thought, “Why does my switch block a link even when there’s no loop?” The answer: Root Bridge Election. Most learners get tripped up trying to remember how STP elects the root bridge and why […]
![STP vs RSTP vs MST: Full Comparison with Real Labs & CLI [2025] [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/STP-vs-RSTP-vs-MST_networkjourney-1.png)
If you’ve ever sat in front of your topology wondering “Why is one link blocking? Why did convergence take so long?”, you’ve already met the mysterious world of Spanning Tree Protocols. STP, RSTP, and MST sound intimidating at first—but once you get hands-on and understand […]
