The Cisco 5520 Series Wireless LAN Controller is a highly scalable, service-rich, resilient, and flexible platform that is ideal for medium-sized to large enterprise and campus deployments.
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Ubiquiti WLAN
Score 9.2 out of 10
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Ubiquiti offers a family of WLAN products, namely the UniFi line of products.
I consider that its implementation is recommended for configurations where the amount of access points exceeds 50 devices and the performance exceeds 4 Gbps. In environments where the access point density is less than 10 units, we can use the option of Express Mobility.
Ubiquiti is well suited to not just indoor WLAN access, but also outdoors. In fact, the range of the outdoor applications, while maintaining throughput is astonishing. I would say this is not a solution for a 1-5 person small office, due to the costs.
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.
Management of devices has become much simpler with the UNMS application, but personally, I would like to see some AirMax-like devices from their Unifi line where everything could be managed from an Unifi controller.
Most Ubiquiti devices are 24V PoE, which is the bane of my existence. I have had several devices fried when staff plugged into standard 48V PoE. They generally don't fail catastrophically, either. You just get strange issues that are difficult to diagnose and eventually need to replace them.
Devices seem to have trouble with many patch cables/switches. Make sure you certify any patch cables you make and don't over crimp.
Sending devices from the factory with same 192.168.1.20 IP instead of DHCP makes it a pain to bulk-setup devices.
Ubiquiti makes great Access points at various tiers provided far better coverage and throughput than consumer-grade wireless repeaters and routers. We have not had any performance complaints from guests or from the administration who use the wifi on a daily basis.
Cisco is always available if we need support. If they are unable to solve the problem right away, they will reach back to us in a timely manner and advise what we need to do. Their team provides additional guidance as well if we hit any stumbling blocks. Their service has been great.
Ubiquiti's support is basically non-existent by design. However, their forums are a great resource if you are willing to do the research and ask questions. Keep in mind Ubiquiti sells hardware, not support so the responses will be from the community of professionals also using Ubiquiti just like you.
Cisco is the most stable company in switching parts including wireless, and it has the most powerful support team with a lot of online documents, community, and market share so when you get stuck, you can find support from anywhere. And usually, you won't need it as its product is very stable and reliable.
We have used products from Netgear, ZyXEL, Cloudmesh, Datto, Mereki, and EnGenius previously often choosing products based on a specific situation, since starting with Ubiquiti [WLAN] we have pretty much stopped [usage] of all other vendors in the networking field and standardized which better allows us to stock spare equipment. Best part is if you need to replace equipment it is easy to swap it out quickly as the controller also acts as a live configuration backup.
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.
