If you’re someone who loves physical routers, switches, and the feel of plugging in those console cables — I totally get you. I started my journey the same way. But guess what? The world is evolving fast, and the network functions we once ran on […]
![EIGRP for IPv6 – Routing Smarter in the Next-Gen Network Era. [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/Why-Are-Enterprises-and-Service-Providers-Moving-to-NFV_networkjourney.png)
![Still Using Standard vSwitches? Here's Why DVS Is a Must in 2025 [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/Still-Using-Standard-vSwitches_Here_s-Why-DVS-Is-a-Must-in-2025_networkjourney.png)
Today we’re diving into something that every modern network engineer must understand — Virtual Switches. Whether you’re configuring labs in EVE-NG, building enterprise data centers, or managing virtual machines in VMware or Hyper-V, virtual switches (vSwitch and DVS) are everywhere. I remember the first time […]
![How Do Bridge Domains and EPGs Work Together in Cisco ACI?[CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/How-Do-Bridge-Domains-and-EPGs-Work-Together-in-Cisco-ACI_networkjourney.png)
Today we’re going deep into a topic that often seems overwhelming at first but becomes incredibly exciting once you get the hang of it — Cisco ACI (Application Centric Infrastructure). When I first started exploring Cisco ACI in customer data center deployments, I found myself […]
![Wireless LAN Controller Architecture – A CCNP Deep Dive [CCNP ENTERPRISE]_networkjourney](https://networkjourney.com/wp-content/uploads/2025/07/Wireless-LAN-Controller-Architecture-–-A-CCNP-Deep-Dive-CCNP-ENTERPRISE.png)
If you’ve ever worked with enterprise Wi‑Fi, you know how vital a good controller architecture is. I remember troubleshooting a campus network where the WLC was overloaded and APs were floating—quite a nightmare! That’s exactly why today, we’re going to explore Wireless LAN Controller (WLC) […]
![CAPWAP Overview – Bridging Access Points and Controllers [CCNP Enterprise] _networkjourney](https://networkjourney.com/wp-content/uploads/2025/07/CAPWAP-Overview-–-Bridging-Access-Points-and-Controllers-CCNP-Enterprise.png)
If you’ve ever wondered how your lightweight Access Points (APs) talk seamlessly to the Wireless LAN Controller (WLC) behind the scenes, then you’re about to get clarity. Trust me—when I first began working with wireless deployments, I was equally intrigued by how these APs automatically […]
![Mobility Groups & Roaming – Seamless Wireless in Action [CCNP Enterprise]_networkjourney](https://networkjourney.com/wp-content/uploads/2025/07/Mobility-Groups-Roaming-–-Seamless-Wireless-in-Action-CCNP-Enterprise.png)
Let me take you back to a time during one of my early enterprise Wi-Fi projects. A user walked across an entire office floor—from one end to the other—while on a VoIP call, and didn’t drop a single packet. Magic? No! That’s the power of […]
![Wireless QoS Settings – Prioritizing Your Wireless Traffic Like a Pro[CCNP Enterprise]_networkjourney](https://networkjourney.com/wp-content/uploads/2025/07/Wireless-QoS-Settings-–-Prioritizing-Your-Wireless-Traffic-Like-a-Pro-CCNP-Enterprise.png)
Have you ever found yourself streaming a video while your download crawls at a snail’s pace—or worse, voice calls keep breaking even with full bars of Wi-Fi? That’s not just bad luck; that’s a network without QoS! Today, we’re going to demystify a crucial concept […]
![Still Using SNMPv2? Here’s Why You Must Switch to SNMPv3 Today! [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-snmpv3.jpg)
Let me tell you a quick story before diving into today’s deep-dive. A few years ago, one of my clients had this weird issue—an attacker was sniffing SNMPv2 traffic and using it to map the entire network. The problem? They thought SNMPv2 was “just fine” […]
![Want to Stop Unauthorized Access? SSH and HTTPS Hardening Explained[CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-ssh-https.jpg)
when was the last time you audited your device’s remote access methods?I still remember the day when a client called me in panic—someone had brute-forced their router via SSH, and guess what? The router had no access-lists, no username policy, and was running outdated SSHv1. […]
![AAA Authentication with TACACS+ and RADIUS – Step-by-Step Cisco Guide [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-AAA-TACACS-RADIUS.jpg)
Let me take you back to my early network engineering days. We had 10 routers and 20 engineers—and we used the same username and password across all devices. No logs. No traceability. Just convenience… until one fine day, someone made a change that brought the […]