![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 […]
![FlexConnect Deployment – Bringing Wireless to Remote Branches [CCNP Enterprise]_networkjourney](https://networkjourney.com/wp-content/uploads/2025/07/FlexConnect-Deployment-–-Bringing-Wireless-to-Remote-Branches-CCNP-Enterprise.png)
Today I want to take you behind the scenes of one of the most practical features in enterprise wireless: FlexConnect. I remember walking into a client’s branch office in another city—no WLC in sight—but still, APs were serving users with full authentication, VLANs, and security […]
![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 […]
![Don’t Let Your Router Crash! Master Control Plane Policing (CoPP) with Labs & CLI [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-CoPP.jpg)
Ever had one of those moments where your device just locks up, and you can’t even SSH or ping it anymore—even though the CPU is not maxed out? I’ve been there. As someone who’s spent years deep in the trenches of data centers and campus […]
![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 […]
![Security Zones Explained: From Flat Networks to Fortresses [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/07/nj-blog-post-security-zone.jpg)
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 […]
