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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
6th
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
7th
Average Rating
8.0
Reviews Sentiment
6.4
Number of Reviews
11
Ranking in other categories
Cloud Workload Protection Platforms (CWPP) (15th), Microsegmentation Software (2nd)
 

Mindshare comparison

As of August 2025, in the Cloud and Data Center Security category, the mindshare of Cisco ACI is 5.2%, down from 6.8% compared to the previous year. The mindshare of Illumio is 24.6%, up from 23.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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

"The initial setup was trivially simple and easy. It builds itself because it is automation. You don't have to do too much."
"With ACI, if you need more capacity you can just buy more and plug them in without needing to do anything else. All of the sudden that infrastructure is there for me to use, configure, and add stuff to."
"The most valuable features of Cisco ACI are micro-segmentation, the VXLAN, and the ACI flattening services."
"It has made it much easier to deploy and make changes in the data center versus the previous infrastructure, which was NX-OS based."
"This solution is easy to configure, and it is done in an object-oriented manner."
"The initial setup was pretty straightforward. We just moved from one platform to another."
"The stability is quite good."
"The best part of ACI is that it can integrate with a lot of virtual environments like VMware, Hyper-V, and KVM."
"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."
"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."
"It has helped us to understand internal network visibility and firewall policy implementation. We use the product to simplify firewall policy implementation."
"The solution is easy to use."
"The dependency map is most valuable feature."
"The product provides visibility into how the applications communicate and how the network protocols are being used."
"The Explorer allows you to know the traffic between source and destination."
"The flexibility of the solution is its most valuable feature."
 

Cons

"So far we've had very few issues, a couple of routing things that were glitches within ACI."
"Training for this product is available from institutions but it is not available online where you can get users trained easily."
"There should be an alternative "ACI Light" solution for smaller-sized enterprises."
"Cisco needs to enhance their technical support and pay more attention to regional support."
"I wish that if I had to open up an additional tab, I wouldn't have to log in every single time."
"The additional features I would like to see included in the next releases are support for our policy-based routing. There are endpoint issues that are there now in the code. Hopefully, these will get fixed in the future code."
"From my point of view, troubleshooting issues relating to ACI can be a little bit complicated to perform."
"Compared to VMware, it needs more virtualization technologies."
"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."
"I have not had the chance to experiment deeply with it."
"The product’s agents don't work very well in OT environments."
"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."
"The interaction we've had with the support team hasn't been ideal. Technical support should be improved."
"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."
 

Pricing and Cost Advice

"Cisco is much more expensive than other vendors, especially when it comes to the licensing."
"If you compare the licensing and total cost of ACI, it's cheaper than NSX because of the licensing fees. If you are going for full NSX features it will be too expensive, especially the next-generation firewalling feature."
"It saves time and resources."
"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."
"We have saved time on the provisioning and configuration."
"The good thing about Cisco is that you can trade in your old products to replace them with ACI."
"The product is not cheap."
"A big company can automate it themselves or spend a lot of money and buy it."
"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
20%
Financial Services Firm
10%
Manufacturing Company
9%
Healthcare Company
7%
Financial Services Firm
18%
Computer Software Company
14%
Manufacturing Company
8%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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: July 2025.
865,295 professionals have used our research since 2012.