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![Are Hypervisors Replacing Bare Metal in 2025? Here’s What You Should Know [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/Are-Hypervisors-Replacing-Bare-Metal-in-2025_networkjourney.png)
Are Hypervisors Replacing Bare Metal in 2025? Here’s What You Should Know [CCNP ENTERPRISE]
Today we’re diving into a topic I often discuss with students, clients, and fellow engineers — should you deploy your network on a hypervisor or go bare metal? When I started building labs and handling client deployments, I thought bare metal was always the “pro” […]
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![Cisco LISP Protocol Explained with CLI, Labs, and Use Cases. [CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/Cisco-LISP-Protocol-Explained-with-CLI_Labs_and-Use-Cases_networkjourney.png)
Cisco LISP Protocol Explained with CLI, Labs, and Use Cases. [CCNP ENTERPRISE]
If you’ve been diving into advanced routing or enterprise-level WAN designs, you may have come across a fascinating protocol called LISP (Locator/ID Separation Protocol). When I first encountered LISP while working on inter-DC communication and traffic engineering use cases, I realized it offered something most […]
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![Why Is VXLAN Better Than VLAN in Large-Scale Networks? [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/Why-Is-VXLAN-Better-Than-VLAN-in-Large-Scale-Networks_networkjourney.png)
Why Is VXLAN Better Than VLAN in Large-Scale Networks? [CCNP Enterprise]
If you’ve ever wondered how data centers manage large-scale Layer 2 networks over Layer 3 infrastructure, today’s topic will blow your mind — VXLAN. I still remember my first experience with VXLAN during a large DC project, where VLANs just couldn’t scale anymore. That’s when […]
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![Cloud Networking Made Simple: Dive into IaaS, PaaS & SaaS [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/Cloud-Networking-Made-Simple_-Dive-into-IaaS_-PaaS_SaaS_networkjourney.png)
Cloud Networking Made Simple: Dive into IaaS, PaaS & SaaS [CCNP Enterprise]
If you’re still scratching your head over the differences between IaaS, PaaS, and SaaS, you’re not alone. I remember the first time I tried to wrap my head around these concepts—it was confusing, full of buzzwords, and felt a bit too “cloudy” to grasp clearly. […]
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![How Can GRE Tunnel Help Connect Remote Sites? Full Cisco Setup Guide [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/How-Can-GRE-Tunnel-Help-Connect-Remote-Sites_networkjourney.png)
How Can GRE Tunnel Help Connect Remote Sites? Full Cisco Setup Guide [CCNP Enterprise]
I’m bringing you one of the most essential yet often misunderstood technologies in networking — GRE Tunnels. I’ve seen students struggle to understand why or how GRE is used, and I completely understand! When I first came across GRE, I kept wondering how traffic magically […]
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![VRF Lite Explained: Real-World Use Cases, Commands & Troubleshooting [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/VRF-Lite-Explained_networkjourney.png)
VRF Lite Explained: Real-World Use Cases, Commands & Troubleshooting [CCNP Enterprise]
If you’ve ever wondered how service providers keep customer traffic completely isolated even when using the same physical network, or how enterprises segment their internal departments securely, let me introduce you to a real game-changer:VRF Lite. As someone who’s helped countless students and professionals scale […]
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![Network Design: High Availability vs Load Balancing – Know When to Choose What? [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/Network-Design_High-Availability-vs-Load-Balancing-–-Know-When-to-Choose-What_networkjourney.png)
Network Design: High Availability vs Load Balancing – Know When to Choose What? [CCNP Enterprise]
I want to simplify one of the most misunderstood concepts in enterprise networking—High Availability (HA) versus Load Balancing. Over the years of designing, training, and troubleshooting production networks, I’ve seen engineers confuse these two techniques or treat them as interchangeable. Trust me, understanding their unique […]
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![Virtual Network Functions (VNFs) – The Future of Flexible Networking. [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/Virtual-Network-Functions-_VNFs-–-The-Future-of-Flexible-Networking-_networkjourney.png)
Virtual Network Functions (VNFs) – The Future of Flexible Networking. [CCNP Enterprise]
If there’s one shift in the networking landscape that has changed the game in recent years, it’s the rise of Virtual Network Functions (VNFs). I still remember a time when deploying firewalls, load balancers, or WAN optimizers meant racking up physical boxes in data centers. […]
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![Control Plane vs Data Plane: What Every Network Engineer Must Know in 2025 [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/06/Control-Plane-vs-Data-Plane_What-Every-Network-Engineer-Must-Know-in-2025_networkjourney.png)
Control Plane vs Data Plane: What Every Network Engineer Must Know in 2025 [CCNP Enterprise]
Today we’re talking about one of the most foundational yet misunderstood topics in networking—Control Plane vs Data Plane. I can’t tell you how often I’ve seen even experienced engineers mix up the two, especially when jumping into technologies like SD-WAN, SDN, and Cisco DNA Center. […]
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![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)
Redundancy Unleashed: Keeping Enterprise Networks Always-On [CCNP Enterprise]
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 […]
