What is our primary use case?
Cisco Wireless serves as a wireless access solution that enables employees to work mobile and connect to all applications from anywhere in the office. The major use cases include seamless mobility where access points interact with each other through anchor mobility controllers. When moving from one location to another within the office, users experience seamless handover between access points without facing call drops or connectivity issues.
Security is another primary use case, involving authentication and authorization that operates seamlessly so users are not prompted for a username and password every single time. Cisco Wireless also provides guest Wi-Fi functionality, which works with clients, partners, and contractors who occasionally work from or visit our locations. A complete workflow exists for guest and sponsor portal management.
What is most valuable?
Since 2015, I started dealing with Cisco Wireless primarily through the migration effort from autonomous access points in standalone mode to distributed autonomous mode. This involved hooking all access points into a WLC, wireless LAN controller. We had several projects to move from standalone to WLC 5508, which was the major undertaking. We gradually moved to different WLC models, configuring distributed CAPWAP mode and considering different authentication protocols, integrating that with NAC and Cisco ICE. Recently, we deployed Cisco WLC 9800 series for distributed wireless access points distributed locally and globally.
Regarding the AI capabilities of Cisco Wireless for network management, it provides an easy way to triage and figure out issues. Prompts allow querying functions such as determining where a particular client is connected, which access point it uses, and what the signal noise levels are. It functions more as a querying function rather than automatically adjusting access point signals when a user gets far away. If automatic adjustments occur, they happen in the backend without much exposure. The primary benefit is the ability to triage and identify what is where, and when users report issues, we can identify the users, location, endpoint, and nuances such as signal strength and signal-to-noise ratio. This provides an easier way to troubleshoot rather than moving across different panes in the portal. This is an AI function that is inbuilt, so we do not have considerable control over it.
What needs improvement?
Cisco Wireless does not integrate into network security and threat detection by itself. Integration with other tools is necessary for security functions. I do not think threat intel feeds can be ingested locally, and the platform must work with EDR or threat prevention tools. We handle security after the user is connected, with particular traffic landing on the wired network and passing through the firewall. We do not typically use native threat prevention capabilities because it becomes too cluttered and creates troubleshooting challenges when relying on the platform's primary functionality to provide wireless access while securing it simultaneously.
The areas for improvement are not challenges for every single version. We faced several issues with a few versions, primarily involving hardware and software compatibility where upgrades became necessary. A couple of our locations have devices deployed years ago that have remained stable. Other locations required device refreshes because those devices reached end-of-sale and end-of-life status, necessitating several iterations before reaching a stable state.
What do I think about the stability of the solution?
Cisco Wireless is generally stable. Although I do not have a particular uptime percentage such as 99.7% or 99.8%, it is fairly stable. The best aspect is that even if the WLC goes down, the access points stay up and remain functional. The mobility may suffer in such situations, but it does not result in complete downtime.
What do I think about the scalability of the solution?
Cisco Wireless is a scalable product. Installing new licenses with the number of access points that the device WLC is expected to support makes it scalable.
How are customer service and support?
I would rate technical support for Cisco Wireless as seven out of ten.
I rate technical support as seven primarily because other products exist in the market. For example, Aruba is another option, and we have that particular setup as well with Aruba mobility controller managing all Aruba access points. Aruba offers lower costs, and historically, we have faced fewer issues with Aruba. The support for Aruba appears pretty decent across the two or three clients we worked with and the one we currently have. The refresh cycle is not as aggressive with Aruba, meaning they will continue supporting products for longer durations without facing end-of-life and end-of-sale situations as frequently as Cisco does. Although Cisco does not do this often either, Aruba appears more relaxed in this regard, which also helps.
How would you rate customer service and support?
Which solution did I use previously and why did I switch?
Regarding the comparison of Cisco Wireless to others on the market in terms of price, I have primarily compared it with Aruba and UniFi. UniFi is not considered very mature, especially for hundreds or thousands of users in a particular location. Aruba is definitely a strong competitor, and in many cases, it costs 40 to 45 percent of Cisco's price with the same feature set, same radios, and same Wi-Fi version, whether Wi-Fi 6 or 6E.
How was the initial setup?
Installation and deployment of Cisco Wireless is usually not straightforward and can be complicated. It is hardware-based, so cabling, racking, and stacking are necessary. It will not be ready on day one or day two because many moving parts are involved. Although the individual components are straightforward, considerable work is required. Finding the rack, performing the racking, cabling, and establishing connectivity must happen first. Then installation, upgrades, configuring access points, and integrating those access points to use Cisco WLCs takes considerable effort. There is a learning curve involved as well. If someone has not done this before, it is not straightforward. Cisco's documentation is the best available, but if I were a person doing this the first time with no prior experience with wireless, I would certainly acknowledge that the technology itself requires learning, and the interface is not as seamless as something like Cisco Duo or others.
The impact on mobility within the company is quite substantial. With standalone access points, handoff typically cannot occur. This means when an endpoint or user moves a laptop from one location to another and the destination is far away from the first endpoint, problems arise because devices prefer to stay on the same Wi-Fi even if signal strength is down. Smart selection of access points at the time of handover is crucial. Having a WLC that allows tweaking of those functions is important, with signal-to-noise ratio and RSSI requiring particular values when handoff should be triggered. The mobility function is critical for mobile users. Mobility is not really necessary for desktop users or cameras, which are static. This is a very important parameter to measure the success of a particular solution. Cisco and Aruba function similarly in this regard, with Cisco being more expensive. It is an expensive way of solving the same problem statement, but it performs its job well. Mobility is great, and I have worked with it for close to ten years. Cisco Wireless is stable, and periodically there are feature releases and security advisories. Sometimes we experienced challenges with poor handoff impacting mobility, but that was more version-specific and could be resolved through upgrades or inputs provided by TAC on how to fix it.
What was our ROI?
Regarding ROI from using Cisco Wireless, it is difficult to gauge return on investment because it is a productivity function. The only metric we have used so far is the number of users or number of incidents reported by users, especially regarding slowness. We listed down several known issues or most frequently faced issues, one of which was certainly slowness because of poor signal. However, there are too many variables to isolate the cause, as sometimes applications are slow and it is not the Wi-Fi. A comparison from standalone to distributed WLC-controlled access points provides some decent ROI. I do not have specific numbers, but there is a decent return on investment when moving from standalone to a completely distributed wireless access with wireless LAN controllers. Moving from Aruba to Cisco or Cisco to Aruba, I am not certain if anyone even looks at those metrics.
What other advice do I have?
Cisco Wireless does support diverse mobile devices, though I am not certain of all details. We do not use any special devices beyond access points that are Wi-Fi 6 and 6E compliant. We have WLCs, wireless LAN controllers, and licenses based on device count to manage the number of access points that the WLC can manage. On top of that, we perform integrations with Cisco ICE. We do not have any other devices such as temperature sensors or gate control devices.
The metrics I use to evaluate the performance of Cisco Wireless primarily include baseline metrics established at the time of installation. This depends upon the company and the policy, but the way we do it is twenty users per access point with a buffer of ten. Especially in densely populated offices, we keep that count low, meaning the number of users per access point decreases, and we do it deliberately. Apart from that, metrics for success include the mobility function. We check how many handoffs have occurred for different clients or end users across different access points. The signal-to-noise ratio and the least value after which handoff is triggered are monitored to ensure successful operation. It is not as precise as security metrics are, but it focuses on ensuring signal strengths are satisfactory, frequencies are aligned properly, and considering the frequencies that are enabled and the area of the premises. My overall rating for Cisco Wireless is seven out of ten.