What is a WLAN Controller?

WLAN controller is an appliance that manages and enables wireless network access points. It is easier to manage a network with the help of designated tools and applications. These WLAN controllers enable the administration and configuration of multiple access points from the central point. They assist the network to become more effective as well as protected from unauthorized access. WLAN controllers may reside on an actual piece of hardware equipment or virtual or software- based equipment. 

The controller determines how the signals emitted by radio will be transmitted. It ensures hassle free connectivity and ultimately, great performance. As WLANs grow large, wireless controller system become indispensable for effective wireless networks. This is useful because it provides you one location you can monitor and resolve issues associated with your network. Some of the benefits of WLAN controllers incorporate the following aspects, One of the major aspects that WLAN controllers bring is the administrative convenience of having all the WLAN management centralized. 

They help maintain consistency in the speed of all the given access points. This is especially true where wireless LAN controllers can assist in optimizing general network performance and manage the flow of traffic. Last but not the least we can conclude that WLAN controllers are very effective in managing wireless networks . Through them, you engross controls and configurations of all your entry points at your fingertips. Some of the benefits of using the WLAN controller include that it can make the handling on a network simpler and at the same time boost the speed of the network.

WLAN Controller Benefits

1. Improving network security by giving one point of control for monitoring and managing all access points. 
2. Improving network performance by ensuring seamless connectivity and optimizing traffic flow through a wireless network controller. 
3. Lowering maintenance costs by allowing remote troubleshooting and software updates for all access points. 
4. Increasing scalability by making it easy to add new wireless access point controllers without disrupting the existing network. 
5. Improving user experience by letting them roam more freely and having better coverage throughout the wireless network controller. 
6. Overall network reliability and stability by giving a single platform for managing all wireless devices.

WLAN Controller FAQs

Q. Does it matter how big a controller is?

A. Simply put: yes. It’s important to choose the right type of deployment and to make sure your controller matches the size of your organization. The amount of devices that connect to a wireless network will usually help you decide which controller to buy. A big office building that has hundreds of workers has different needs than a small business.

Some controllers, such as the Catalyst 9800-80 Wireless Controller, are built to handle the traffic of a large organization. That same controller would be overkill for a small business. In the same way, a controller like the Cisco 3504 Wireless Controller is made for smaller business offices and only controls a few access points. It could never handle the daily tasks of a large company.

Q. Does my organization need a WLAN controller?

A. Not all the time. If your business is small to medium-sized, if you don’t have a highly skilled IT manager, or if you are on a budget, Cisco Mobility Express may be the answer.

Mobility Express, unlike a typical network, is a controllerless device. What this means is that a WLAN controller is embedded in the access point. All of your Wi-Fi settings can be changed from an access point.

Mobility Express is simple to set up and control, and it’s also simple to add guest access to your wireless network. It takes under 10 minutes to deploy.

Q. How do WLAN controllers fit into an intent-based network?

A. An important part of intent-based networking is Cisco’s wireless controllers. In other words, if you get a Cisco intent-based network, your network gets smarter every day because it is based on context and design.

Q. Can you name some other ways to set up wireless controllers?

A. In addition to managing access points, a WLAN controller is integral when it comes to the type of network deployment you choose. You can use physical controllers for two types of deployments:

Deployment from one place. The most common type of wireless network system, traditionally deployed in campuses where buildings and networks are in close proximity. This deployment consolidates the wireless network, allowing for easier upgrades and enabling advanced wireless functionality. Controllers are based on-premises and are installed in a centralized location.

Distributed deployment. This answer works best for small sites or branch offices. It allows customers consistency in their wireless and wired connections. This deployment converges wired and wireless on one network device–an access switch–and performs the dual role of both switch and wireless controller.

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