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Cisco ACI vs Illumio comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jul 27, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Cisco ACI
Ranking in Cloud and Data Center Security
7th
Average Rating
8.0
Reviews Sentiment
6.5
Number of Reviews
102
Ranking in other categories
Network Virtualization (1st), Software Defined Networking (SDN) (2nd)
Illumio
Ranking in Cloud and Data Center Security
6th
Average Rating
8.0
Reviews Sentiment
6.4
Number of Reviews
11
Ranking in other categories
Cloud Workload Protection Platforms (CWPP) (13th), Microsegmentation Software (2nd)
 

Mindshare comparison

As of October 2025, in the Cloud and Data Center Security category, the mindshare of Cisco ACI is 4.7%, down from 6.5% compared to the previous year. The mindshare of Illumio is 22.8%, down from 24.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud and Data Center Security Market Share Distribution
ProductMarket Share (%)
Illumio22.8%
Cisco ACI4.7%
Other72.5%
Cloud and Data Center Security
 

Featured Reviews

Rahul Khandelwal - PeerSpot reviewer
Enables streamlined data center management with automation and application-centric design
The main features of Cisco ACI that I really appreciate are the application-centric and network-centric designs, allowing you to create your network according to your application. That's helpful, and it's good for one-time implementation. The automation capabilities are really helpful. We deployed one data center using Terraform, and after deployment, many automation features are available, which can be very helpful. Based on my experience, Cisco ACI provides substantial capability; you can design your network accordingly and it's part of the SDN family, providing many benefits to the organization, especially when moving from traditional network infrastructure. Many organizations are actually using the old traditional Nexus infrastructure or some old data center devices. It gives you significant control and one-time implementation capabilities, and it also provides better performance and security. Functionality-wise, Cisco ACI provides integration using automation. We implemented it through Terraform, which was easy. Those features are available, so I don't think any new features are needed right now; something new could come up, but they have implemented many improvements over the years.
Alark Singh - PeerSpot reviewer
Visual traffic interface aids in network micro-segmentation while a streamlined update option enhances process efficiency
The strongest aspect of Illumio is the visual traffic interface, which allows us to see all traffic that communicates with our servers and allied companies. We can write rules that can be embedded into the IP table, making it easy to handle. Illumio enables us to see network flows, traffic sources, and destinations. The policy generation and enforcement capabilities are valuable, allowing for selective enforcement. Illumio helps in audit purposes by saving data and showing blocked traffic, ensuring no outside traffic is allowed.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"I rate Cisco ACI nine out of ten due to its impressive features."
"It has made it much easier to deploy and make changes in the data center versus the previous infrastructure, which was NX-OS based."
"The most valuable feature of the solution is the Call Manager."
"It is very stable. It works 100 percent of the time."
"Now, our customers have tiers of management that have meetings with about the simplest tasks because it has to be approved from upper management and senior management and by the time it gets to the engineer that's going to deploy it, it takes way too long. With the solution, they can delegate a person who would be in charge of running the ACI as a whole, and it will be much faster because it doesn't have to go through the whole chain of command for the simple task of deploying one little machine on one port in the data center."
"One area where it has an advantage... is that you're able to reuse a specific integration. If you add another server, you can use a specific integration and assign it to another port."
"The ability to integrate with other systems is the most valuable feature."
"I recommend Cisco ACI due to its reliable tech support, timely updates for security, traffic management, and ease of management."
"I would recommend Illumio to all sizes of companies."
"The features that I have found most useful is the ability to centralize all the rules and then distribute them across various locations. However, I've encountered challenges related to tagging policies, which can be complex to devise. It's a matter that requires careful consideration and stakeholder involvement before implementing such policies."
"The dependency map is most valuable feature."
"The Explorer allows you to know the traffic between source and destination."
"Customer support is excellent."
"The tool helps with my company's security posture."
"The product provides visibility into how the applications communicate and how the network protocols are being used."
"The most valuable feature of Illumio Adaptive Security Platform is monitoring. When I have no requirement from the other application, I can use the web block traffic to build."
 

Cons

"An area for improvement in Cisco ACI is security, which Cisco needs to enhance in the solution. Though Cisco ACI uses a whitelist model, you must purchase an external product, such as a security firewall solution, to make whitelisting work, which the customer could find expensive. For example, you're a customer who has Cisco ACI, and the solution doesn't have IP-based filtering, so as a customer, you've purchased Cisco ACI. However, you still need to buy another product for security, and some customers wouldn't like that. However, some customers prefer to go with Cisco ACI because of its scalability and flexibility versus other solutions such as Juniper and Aruba. Technical support for Cisco ACI also needs improvement, particularly in product knowledge."
"There should be an alternative "ACI Light" solution for smaller-sized enterprises."
"The initial setup was a bit complex. ACI was just out at that time, and there wasn't support at that time."
"Where there is room for improvement from ACI is for Layer 2 and Layer 7 packages. Normally, when you're updating your ACI fabric or you're introducing new Layer 4 to Layer 7 devices, there are some constraints, there are some limitations... When you are doing device packages you will not have the functionality of ASM. It's like WAF, web application firewalls. So you need to configure it manually."
"They should make it easier for the network people to do automated solutions."
"The ability for us to figure out the traffic flows, to enable some of the more segmentation parts of it, is really tough with what is built into ACI."
"The interface is sometimes slow. I receive a lot of weird errors when I try to install apps, such as contract apps, which should give me a nice visualization of all the contracts. However, it just doesn't load, etc."
"It is challenging for people who don't understand the programming language, making it difficult to migrate. With technology, there are two verticals. One is hardware driven and the other is software driven. Most people in our domain understand networking, but they don't understand programming. When we migrate, some programming is required."
"The customer service is lagging a bit. It could be better."
"The solution is very basic and doesn't do anything other than the orchestration of layer four endpoint firewall rules."
"There should be an option to upgrade from the console to the latest version instead of performing manual upgrades."
"We need more details on areas where there is an error or a traffic blockage. I would like the tool to offer a more detailed view."
"I would like to see better data security in the product."
"Illumio Adaptive Security Platform could improve by supporting more operating systems. For example, Cisco and Apache appliances."
"The interaction we've had with the support team hasn't been ideal. Technical support should be improved."
"There should be an option to upgrade from the console to the latest version instead of performing manual upgrades. This would be more helpful to streamline processes."
 

Pricing and Cost Advice

"Cisco is much more expensive than other vendors, especially when it comes to the licensing."
"We bought a package for hardware, software, and support. At that time, Cisco was simply selling that package to distributors, then we opted for it directly."
"It saves time and resources."
"The thing that I like the most from Cisco is the support and all the documentation that they have. We do have to pay for it though."
"On a scale from one to ten, where one is cheap and ten is expensive, I rate the solution's pricing an eight out of ten."
"The pricing is pretty good for new technology."
"Cisco's pricing is very expensive."
"Yearly, we pay around one point two million for the solution."
"The product's pricing is around 10,000-15,000 USD. The pricing is on a yearly basis."
"There is a subscription needed to use Illumio Adaptive Security Platform and we pay every three years. Overall the solution is expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
19%
Financial Services Firm
11%
Manufacturing Company
9%
Healthcare Company
7%
Financial Services Firm
19%
Computer Software Company
14%
Manufacturing Company
7%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business21
Midsize Enterprise18
Large Enterprise87
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise1
Large Enterprise7
 

Questions from the Community

What are the biggest differences between Cisco ACI and VMware NSX?
There are some very major differences between both the Products and to name a few. -Cisco ACI have physical network gear (9K Switches) where the Code runs in ACI Policy Mode & the UCS server wh...
What are the biggest differences between Cisco ACI and VMware NSX?
Once you know your way around the Cisco ecosystem, using Cisco ACI is not so difficult. It is a global product, so when you change one interface, changes are automatically reflected on every switch...
What do you like most about Cisco ACI?
The flexibility of adding new components with minimal impact on existing services running in the data center is a key benefit of this ACI-based solution.
What do you like most about Illumio Adaptive Security Platform?
The features that I have found most useful is the ability to centralize all the rules and then distribute them across various locations. However, I've encountered challenges related to tagging poli...
What is your experience regarding pricing and costs for Illumio Adaptive Security Platform?
I do not have specific knowledge about pricing details as it is handled by upper management. I know that Illumio is the cheapest solution in the security area.
What needs improvement with Illumio Adaptive Security Platform?
There should be an option to upgrade from the console to the latest version instead of performing manual upgrades. This would be more helpful to streamline processes.
 

Comparisons

 

Also Known As

No data available
Illumio Adaptive Security Platform, Illumio ASP
 

Overview

 

Sample Customers

Bowling Green State University, du, Qatar University
Plantronics, NTT Innovation Institute Inc.
Find out what your peers are saying about Cisco ACI vs. Illumio and other solutions. Updated: September 2025.
868,759 professionals have used our research since 2012.