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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Extreme Wireless Access Points
Score 9.2 out of 10
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Extreme Networks' Wireless Access Points (or ExtremeWireless) are designed to provide performance in the most demanding environments with the latest Wi-Fi technologies including 6 GHz, OFDMA, MU-MIMO, and software-defined dual 6 GHz radios.
At this point the Cisco 5520 Wireless Controllers are end of life as a Cisco product, so I would not recommend them to anyone looking to purchase a wireless controller for an enterprise. However, many people are still using these, and they do work reliably, even if they are a bit long in the tooth now.
The Extreme access point solution has been used in the cooperative scenario with VLANs for employees in access through 802.1x authentication and also for guests through the captive portal that allows access of people for a limited time and prior registration. The equipment has great performance and connection speed and supports a high density of users connected at the same time without lag and crashes. The management of this equipment is being carried out through software with cloud management and is accessed by our infrastructure team to configure and monitor alerts.
Ease of use and Management. The process of implementing APs is straight forward and managing the wireless infrastructure is quite simple and efficient.
Coverage: we are very happy with the distance each AP coverages in our warehouses without having any drop issues or over implementing APs.
Cost competitive versus other cloud managed wi-fi solutions such as Cisco, Aruba or Mist.
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.
In my experience, licensing has become a nightmare. Licensing must be tied to a device, they also won't let you activate used units from other companies if they are donated or purchased third-party.
Customer service is outsourced overseas.
In my experience, technicians are incentivized to close tickets quickly - whether the issue has been fixed or not - which can be frustrating to work with.
This equipment from Cisco has been dependable and we are able to easily continue to add access points or make changes easily to the Wi-Fi password settings.
We have been operating this equipment for a number of years and it does not give us any issues.
Overall the usability is ok. The centralized management reduces complexibility and offers bulk features like adding access points to specific groups which automatically applies linked configurations.
On the other hand the GUI is very outdated and some features are not displayed correctly on new browsers. Also automation possibilities are very limited compared to the new 9800 series controller.
Extreme Wireless Access Points are easy to manage. They are easy to deploy and install. The hardware and firmware are reliable. There a number of things to be improved since we are still using the WiNG platform, but all of those things will be much better when we migrate to CloudIQ.
Extreme Wireless Access Points can support all our devices, even in high capacity areas. They are easy to manage and get basic information. There was a time back around 2017-2018 where people's devices needed to make sure they were using the latest wireless drivers; otherwise, people were having connection issues. Other than that time period, we were able to have fewer complaints from end users.
Cisco support is always ready to support and engage in any problem or issue. Starting from the implementation support, troubleshooting any software issue or hardware. Their engineers are engaging whenever we ask for support, keep following up with us, and troubleshoot any problem till we find a solution and be satisfied [with] the service.
Support was always responsive and willing to help, but at times did not know when to call it and send a replacement to stop the bleeding. I respect that fact that they wanted to get the solution working, and the wanting to learn more and understand, but at times you cant do that at the expense of the customer.
Just take your time when setting up the HA pairs as those can be tricky. Also take your time setting up AP groups and make sure they are on all the SSIDs you need to be on.
Cisco Identity Services Engine is well integrated on Cisco 5520 Wireless Controller because the WLC supports a lot of authentication methods and security protocols (such as PEAP, EAP-TLS, Captive Portal redirect). They perform very well with ISE. Cisco ISE is able to manage centrally the AAA sessions from all the WLCs keeping a central point of management for wireless infrastructure.
I've used both Aruba and Cisco (traditional, not Meraki) for wireless, and each have their own strengths. Aruba offers a lot of feature functionality, though the interface is difficult and confusing to use (this was ~4 years ago). Cisco wireless is fairly straightforward to set up and expand, though features are more limited. Aerohive's benefit is the easy+speed of deployment. I've also used the Citrix NetScaler SSL VPN soft client and that works fairly well, though it doesn't compare like-for-like due to the fact that it's software vs. Aerohive, which is hardware.
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.
Linking APs to AD, via NPS, and gaining the password reset policy; helped us move past some issues that we were held up on with SOC
Segregating corporate wifi and guest wifi, plus forcing guest wifi to agree to the Acceptable Use Policy, was needed to pass a compliance audit of the network.
Being able to locate which users are connected to which individual wifi AP, has been a asset with troubleshooting
APs sharing connections allows for us to overlap the wifi zones and create redundancy if an AP were to go offline for any reason.
