The Cisco 8540 Wireless Controller is a highly scalable, service-rich, resilient, and flexible platform. It provides centralized control, management, and troubleshooting for high-scale deployments in service provide, enterprise, and large campus deployments.
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Cisco Catalyst 9800 Series Wireless Controllers
Score 9.3 out of 10
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The Cisco Catalyst 9800-80 is a modular wireless controller with optional 100 Gigabit Ethernet (G) modular uplinks boasting seamless software updates for large enterprises and campuses, and security with ETA and SD-Access.
We upgraded to the latest model of Cisco recently and both the Cisco 8540 and Cisco 9800 are great in their jobs (although a few additional improvements along with the latest technology and AP controls are observed in the later model). The buyers can choose either of these two …
[Cisco 8540 Wireless Controller's] software quality has been shed in recent years. The only problem I have with it is its inability to work with older Cisco Access Points. However, that's to be expected for any deployment. While the controller's UI works well, some areas could be improved. API integrations lack flexibility. [I feel] it's time for policy redesign. It can be a little difficult to determine coding quality.
for well suited, with all these big organizations you can have regional or distributed controller base. I think this is better and then you can consolidate things. All this whole infrastructure to the single locations. Not be a good fit? If you have a small organizations then yeah, maybe some other traditional physical controller.
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.
I guess it's very good at managing large scale deployments because I can change configuration on basically all of our devices at once if I want to. It gives us a quick and easy overview of all of the clients, all of the healthy status of our devices.
It's very good at troubleshooting because it pulls logs from a hardware level, whereas otherwise we'd have to log into each device ourselves and get those logs. It does that automatically.
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.
If possible, please add a column for WAP Name and WAP Model within the 2.4/5/6 GHz radio sections, as we have different models of WAPs in the fleet, and it would be easier to identify WAPs within a building.
We conduct digital exams for our students. If there is a way to identify clients and block traffic for applications like ChatGPT, it would be greatly appreciated. Currently, there is no filter for ChatGPT or generative AI.
Despite common software and hardware issues this is still the best product on the market for large scale enterprise deployments. Cisco has worked with us extensively to reduce the amount of bugs in every iteration however new bugs are introduced or new incompatibilities always arise with major releases. Thus, while I'm hesitant to recommend the product it's still much better than all the other competitors such as Aruba and Juniper in the WIFi space. There is also extensive integration with DNAC/Catalyst Center and ISE in an SDA deployment. Recently there has been a number of critical issues with the controller software and Cisco has proved themselves to be incapable of timely troubleshooting and diagnosis. This has reduced our confidence in the product and it's current and future stability and maintainability. At it's current state the product is taking up too much of our engineering resources to maintain despite also paying for premium support from Cisco. As such I have reduced by rating as we are likely to look at alternative vendors for our long-term wireless management solution
Very feature rich, easy enough for beginners to understand layout and initial setup. Need a good training (online, Cisco Leaning Network, etc.) to fully understand all features and product capabilities. Strict power requirements for APs are only major drawback for our specific implementation.
High availability options are very good. You have multiple options so you can select whichever suits you well. Also you can mix it up if you have more controllers so your downtime risk decreases sharply. Users will not feel any connection issues thanks to powerful and flexible high availability options that Cisco provides.
While it works well in general, there are some bugs in both the GUI and functionality. It has caused spikes of downtime in our network. The HA also is quite cumbersome and specific to set up, while not having the most reliable working around.
We have [done] some work before with the Cisco 3504 product, but the more recent Cisco 8540 Wireless Controller provides a wider range of capabilities for managing the wireless network and each individual device [and] also being able to handle more users. Unfortunately, we didn't test and deploy equivalent products from other concurrent companies.
Not much yet. In my experience from becoming a network engineer four-ish years ago to now, like I said, I used that 5520, which was a Cisco product. These 9800 are a lot smaller and tinier and they seem to do a lot more that the other ones couldn't do. It's a good product.
The Cisco 8540 Wireless Controller allows you to reduce your hardware footprint of wireless controllers deployed in your environment. Instead of having a controller per site deployed, you can have a couple of 8540 controllers in your data center that can handle up 6000 Access Points.
Some of the savings on hardware cost is offset by the cost of redundant WAN circuits. The access points will continue to function when connectivity to the Cisco 8540 Wireless Controller is unreachable, but it will not allow any new connections in that wireless environment.
I think that it has had a positive impact, especially with the dashboard being a university. The 9800 dashboard gives us one spot where we can go to see how many clients are on each of our SSIDs or perhaps client utilization. We've dashboard may be saying, Hey, you have one building that has 90 people connected to one access point. So that gives us the information we need to go in and expand that coverage or add in some high density to address those issues.
