Cisco 5520 Wireless Controller vs Cisco 8540 Wireless Controller

• It has the ability to manage all Cisco access points that we have, regardless of the model. The limit is 1500 pieces of equipment.
• The WLC enables roaming functionality in the localities, this helps with collections, wireless IP phones, and access with notebooks.
• The WLC manages the quality of the "air" and "signal" of the 2.4ghz frequency, avoiding noise and interference.
• The WLC has an interesting feature of visibility of the traffic of the internal network.

Read full review

• The GUI on the Cisco 8540 WLC is much better designed than other Cisco products. Its easy to navigate between the different settings to find what is needed.
• The AP groups allows touching multiple APs at one time.
• It also allows us to create standard SSIDs that can be used at all sites that connect back to it, this saves a lot of time instead of hitting each site with a local controller.

Read full review

• We have had some issues with access points losing their configurations and going offline. This is not a common issue and we are not entirely certain if it is a fault of the controller or the individual APs. That said, the controller does not appear to retain the knowledge of the offline AP which can be a management headache.

Read full review

• Code quality is a bit hit and miss. This will be great for a while, then things will be bad for a while, then we'll do it again. The UI of the controller works, but could do with a refresh, and I would like to see some improvement on layout and organization.
• The constant code/firmware upgrades and the QA of new code could be better.
• Maybe the compatibility with old Cisco Access Points could be improved, but it's normal in all kinds of deployments.

Read full review

• [It provides] centralized management.
• Implementing the [Cisco] 5520 [Wireless] Controllers offered us a huge improvement in administrative time over our previous Cisco 3850 deployment. Being able to see all of our APs on a single controller as well as centrally manage them is a great benefit. This also removed the need to deploy specific equipment in different IDFs throughout our Industrial locations and instead only requiring switches with Power Over Ethernet (POE) capability.
• Wireless performance has improved with the deployment of our 5520s, which allows our plant operators to do their jobs more efficiently while on the move.
• Having three Cisco 5520 Wireless Controllers provides tertiary redundancy for our wireless networks. The solution is elegantly simple. Preventing downtime is, obviously, a profound part of our supply chain capabilities.

Read full review

• Network engineers find it easier to [manage] high-stress levels since they're more reliable and robust.
• Their initial cost is very high compared to other router providers, such as Juniper.
• Their hardware dependability can be a big drawback if you run on a budget.

Read full review