Try our new research platform with insights from 80,000+ expert users

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:
 

ROI

Sentiment score
6.7
Cisco ACI enhances efficiency with cost savings and stable performance, though some face challenges and unutilized features.
Sentiment score
7.4
Illumio provides East-West traffic visibility and log auditing, offering substantial value with cost-effectiveness and time efficiencies despite incomplete data.
Efficient utilization leads to cost savings and efficiency gains.
Illumio is known to be the cheapest solution among the security solutions we evaluated.
 

Customer Service

Sentiment score
7.1
Cisco ACI's customer support is mixed, with responsive staff but inconsistent expertise and room for improvement in newer versions.
Sentiment score
1.0
Illumio's customer service is generally responsive with 24/7 availability, but experiences and satisfaction vary among users.
The technical support from Cisco is satisfactory.
When issues occur, the TAC is not able to provide much support, leading to difficulties in finding RCAs.
Even if we raise an issue on non-working days like Saturdays or Sundays, we receive prompt responses.
From my experience, they are very responsive.
 

Scalability Issues

Sentiment score
7.7
Cisco ACI excels in scalability and flexibility, supporting integration across environments with strong automation and plug-and-play features.
Sentiment score
7.6
Illumio effortlessly scales in large installations, supports diverse environments, and receives high user satisfaction across various professional roles.
The solution offers high performance and scalability with connectivity options up to 100 GS.
You can use the multi-site and multi-pod features, which help you scale the data center over the WAN and create large sites.
The scalability of Cisco ACI supports our organization's growth effectively.
Scaling it to a large level is not an issue for us.
 

Stability Issues

Sentiment score
7.5
Cisco ACI is now stable and reliable, with high availability, effective support, and improvements enhancing performance for data centers.
Sentiment score
8.0
Illumio is praised for stability and reliability, using native firewalls with high user satisfaction and an 8.5 rating.
For stability, Cisco ACI rates a nine or 9.5 because I've seen three customers using Cisco ACI and once deployed, the solution is very stable.
Illumio is a stable solution with no glitches or bugs reported, making it a reliable product for us.
 

Room For Improvement

Cisco ACI users seek improved usability, integration, documentation, deployment, automation, security, and support for a more efficient experience.
Illumio needs improved support, integration, OS compatibility, data security, detailed logs, interactive sessions, and tagging automation guidance.
Their lack of on-ground offices can result in business losses.
There could also be more examples of how the automations can be done using Illumio.
That's why I'm looking for comparisons with other products.
There should be an option to upgrade from the console to the latest version instead of performing manual upgrades.
 

Setup Cost

Cisco ACI's high costs are justified by its quality and capabilities, making it a valued investment for large enterprises.
Illumio offers flexible pricing based on workloads, with mixed views on cost, subscribing every three years.
In general, Cisco ACI is on the higher side; it's not a cheap solution.
Cisco's pricing tends to be on the higher end compared to other vendors.
I know that Illumio is the cheapest solution in the security area.
I think it's not very expensive if we compare it with Guardicore.
 

Valuable Features

Cisco ACI centralizes management, enhances security, scalability, and automation, simplifying network operations, improving efficiency, and integrating with VMware.
Illumio enhances security and usability with its Application Dependency Map, traffic analysis, and centralized policy management, aiding visibility and micro-segmentation.
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.
Its features, like easy application deployment, short deployment time for new applications or software, and eliminating the hassle of STP, are appreciated.
It is essential for growing our data center connectivity and enablement for our customers.
Illumio helps in audit purposes by saving data and showing blocked traffic, ensuring no outside traffic is allowed.
The most important feature is the traffic review analysis, where we use the draft view and the reported view that helps us understand how the application interacts with other applications in the environment, and based on that, we are able to define the policies.
The dependency map is the most valuable aspect.
 

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
8.2
Reviews Sentiment
5.7
Number of Reviews
12
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.
report
Use our free recommendation engine to learn which Cloud and Data Center Security solutions are best for your needs.
872,655 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
17%
Financial Services Firm
11%
Manufacturing Company
9%
Government
7%
Financial Services Firm
18%
Computer Software Company
14%
Manufacturing Company
8%
Insurance Company
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 Enterprise8
 

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.
872,655 professionals have used our research since 2012.