Let's dive right in, shall we? If you're preparing for the CCNP 350-401 ENCOR examination, understanding wireless deployment models is a must. They're like the salt in a stew - you can't really taste them, but you'd definitely miss them if they weren't there. Now, there are quite a few models out there to digest – centralized, distributed, controller-less, controller based, cloud, and remote branch. Seems like a mouthful, right? Stop fretting! We are going to break these downs one by one, making understanding them as easy as pie.
Centralized Deployment Model
So, the centralized deployment model is the big boss, managing all the thin APs in the network. Picture it as a maestro conducting an orchestra, ensuring every component works harmoniously. It controls the entire WLAN, providing a centralized security management system, and boy, does it simplify things by handling all the wireless AP management activities!
Distributed Deployment Model
Here's where things get spiced up. Unlike the centralized model, the distributed model relies on multiple controllers scattered across different locations—a tad like how franchise businesses are run. Each controller manages its own set of APs, bringing the flexibility of handling larger, more complex networks.
Controller-less Deployment Model
The controller-less model, on the other hand, hustles a bit differently in the wireless network game. It’s like cowboys in the Wild West, no need for a maestro here. Every AP is configured separately and manages its own operations. Sounds like a lot of work, but in return, the model offers flexibility and scalability.
Controller-based Deployment Model
Switching gears, let's slip into the shoes of the controller-based model. It’s like a wizened wizard running the show with a magic wand, a controller. APs are thin devices, merely executing commands given by the controller. This model ensures optimal performance and security by directing traffic and managing functions centrally.
Cloud-based Deployment Model
As if it's been plucked straight out of a sci-fi movie, the cloud-based deployment model is all about living in the virtual world. Think about it as playing a video game with an online multiplayer mode. Here, the game (meaning the WLAN functions and management) is hosted on a cloud server. APs connect to this cloud and operate based on the centralized instructions. Sleek, isn’t it?
Remote Branch Deployment Model
So, just when you thought you had seen it all, in comes the remote branch deployment model. It's like having a secret agent on a mission - operating from an offsite location. This model houses a special branch controller at the remote site, reducing dependency on the headquarters.
Phew! Now that was quite a jog through the varying landscapes of the wireless deployment models! But, as we always say, learning is an adventurous journey, not a race. So, keep honing your understanding, keep iterating on what you know, and success will surely be in your pocket.
Lighting Up Statistics
Now, let’s get our hands dirty with some statistics, shall we? Gartner's 2019 study revealed that the world ramped up spending on public cloud services by 17.5% in 2019 compared to the previous year. This increase shot the total up to an impressive $214.3 billion, a significant leap from $182.4 billion in 2018. The study demonstrated a substantial shift in people's preference, who were mainly enticed by the peerless flexibility, scalability, and cost-effectiveness of the cloud-based deployment model.
Cisco's Annual Internet Report predicts that internet users will constitute two-thirds of the world's population by 2023. Also, we'll see a fourfold increase in the number of Wi-Fi hotspots between 2018 and 2023. Now, that's a colossal indication of just how critical understanding and mastering these wireless deployment models are!
As an ending note, remember that in the world of technology, change is the only constant. So, keep yourself nimble, keep updating, and keep practicing. Who knows? You might just be the next wireless maestro in the making!