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Nutanix Flow Network Security vs VMware NSX comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 4, 2024

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

Nutanix Flow Network Security
Ranking in Microsegmentation Software
5th
Average Rating
9.2
Reviews Sentiment
5.2
Number of Reviews
10
Ranking in other categories
No ranking in other categories
VMware NSX
Ranking in Microsegmentation Software
1st
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
106
Ranking in other categories
Network Virtualization (2nd), Cloud and Data Center Security (2nd), Network Traffic Analysis (NTA) (5th), Network Detection and Response (NDR) (7th), Network Automation (3rd)
 

Mindshare comparison

As of February 2026, in the Microsegmentation Software category, the mindshare of Nutanix Flow Network Security is 6.8%, down from 7.8% compared to the previous year. The mindshare of VMware NSX is 15.7%, down from 19.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Microsegmentation Software Market Share Distribution
ProductMarket Share (%)
VMware NSX15.7%
Nutanix Flow Network Security6.8%
Other77.5%
Microsegmentation Software
 

Featured Reviews

Mohammad Jundiah - PeerSpot reviewer
Solutions Architect at QDS
Has enabled consistent enforcement of zero-trust policies at the virtual layer
The micro-segmentation feature helps to manage network security effectively because it helps the virtual machines that are already on the cluster and the applications inside the cluster itself. It protects them and helps them communicate with each other without needing a complex external or internal firewall in this use case. Working with the zero-trust security model means never trust but always verify. Every VM, application, and service in your environment must explicitly prove it's allowed to communicate with others. An application would be able to talk to a VM and vice versa. This zero-trust means explicitly proving that they are allowed to talk to each other, with no implicit trust just because they are on the same VLAN, subnet, cluster, or environment. Nutanix Flow brings the zero-trust model natively to the virtual layer inside the Nutanix software itself, the AHV. The AHV software enforces strict communication rules between workloads. Integration between Nutanix Flow and other products natively benefits the infrastructure itself as this is a networking segmentation software coming from Nutanix itself. This provides ultimate compatibility. There is no need for extra firewall VMs such as Palo Alto or third-party switches. Security becomes established at the hypervisor level, which creates a new conglomeration of security segmentation. The network performance analysis that Nutanix Flow Network Security provides is very beneficial and effective.
TAIYAB HASAN - PeerSpot reviewer
Windows Redhat Linux Vmware & Azure & Cloud & Nutanix Ahv-Vmware & Backup Senior System Administrator at AlDawaa Medical Services
Has improved network visibility and security through micro-segmentation and SDN capabilities
This feature gives us flexibility and allows us to manage everything under one pane. We can see everything on one console, including network operations and behavior. Monitoring and security are among the best features for VMware NSX. For micro-segmentation, it's integrated with our endpoint security. If there are any issues with servers or VMs, it notifies us so we can isolate the servers and investigate. It provides distributed security features such as firewall and intrusion, IDS, IPS. The security level with IPS and IDS in VMware NSX is excellent. It also provides logical switching and routing which gives an extra layer for Layer 2 and Layer 3 switching requirements. The solution provides flexibility, automation, and self-service capabilities, resulting in cost savings as extensive expertise isn't required. Once automation and self-service are implemented, many tasks can be completed automatically. Load balancing is another excellent feature. Multiple servers can run on load balancing features, which is particularly useful since we have many application servers running. Sharing loads between servers provides the best performance.

Quotes from Members

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

Pros

"It is a very stable solution. Stability-wise, I rate the solution a ten out of ten."
"Flow Network Security's most valuable features are user-friendliness, the console, and policy creation."
"We appreciate the fact that this solution allows us to segregate two virtual machines that are in the same cluster."
"The network view was excellent as it allowed us to expand the server view and visualize all connections it made within the environment. This was particularly useful in identifying the path of our data and not just its location within the data center."
"Nutanix Flow is straightforward to install. You only need to select a checkmark that you want to enable Nutanix Flow."
"They also introduced that they develop API first and the rest follows."
"The micro-segmentation feature helps to manage network security effectively because it helps the virtual machines that are already on the cluster and the applications inside the cluster itself, protects them and helps them communicate with each other without needing a complex external or internal firewall in this use case."
"Nutanix Flow has a lot of data protection features. It's also valuable for operations and management. It's a big solution that works well with different solutions and is suitable for most business cases."
"VMware NSX's overlay network is its most valuable feature, as it aligns with any network philosophy and allows for efficient addressing mechanisms. Additionally, the ability to extend the on-premise network into the provider space is beneficial. There are many features provided."
"From a distributed firewall perspective, it's a solid solution."
"It's what we use the CIS Benchmarks for. It's for employing hardening rules and keeping them up to date when things happen on our systems. So it's really configurations and stuff that harden and report back."
"Firewall security is one of VMware NSX's vital features"
"The most valuable features are ease of use and user interface."
"VMware NSX is a very good solution. It's also a scalable solution."
"It's a beneficial tool."
"From a security standpoint, the customer was able to better secure critical workloads while routing L2/L3 worked normally, giving them more confidence that they would be ready for any potential security incident mitigation or outage (DR)."
 

Cons

"The documentation offered by the product is an area with certain shortcomings where improvements are required."
"The solution’s pricing could be improved."
"For customers who are running Nutanix Flow and AHV, the largest area for improvement is in the disaster recovery environments. To automate the populate of rules from one side to the other side in case of disaster you report everything on the disaster recovery site, and you have all the rules automatically applied. This was something that was being built when I left Nutanix. It might already be available. Additionally, the usability of the rules editor could improve."
"While the graphical interface of Nutanix Flow Network Security could have been improved, and some of the reporting features needed extra work, the product's features were similar to VMware's NSX. The difference lay more in the presentation and user interface."
"The most difficult part is the configuration of the initial blueprints."
"We would like the reporting functionality of this solution to be improved."
"Last time I used it, it was not handy to see or to analyze traffic logs."
"Nutanix Flow's networking features could use some improvement. Also, I don't know if it's currently supporting load balancing or not."
"VMware NSX only supports some platforms like KVM."
"The setup is complex and should be made easier."
"I would rate this product an eight because it's a good product but it needs more work. They should fix some of the bugs."
"The solution is only sold as part of a bundle and not as an individual product."
"It needs to be cheaper."
"The price could be better. The non-enterprise version of the product should also be improved. I would like VMware to expand beyond the network and provide some VLAN technologies and more. I think we have one, but it's more on the distribution side because it's more on the upper side of the network. I'm looking forward to that."
"The licensing model is expensive and could be more flexible, especially after Broadcom bought VMware."
"Its licensing model could be VM based."
 

Pricing and Cost Advice

"Flow Network Security is available on a three-year license, with annual renewals of the maintenance fee."
"This model is very accessible to implement."
"There are different licensing models."
"In comparison to other options available in the market, I would rate their pricing as very competitive, probably a two or three out of ten for cost."
"On a scale from one to ten, where one is cheap and ten is expensive, I rate the solution's pricing a seven out of ten."
"The product is available for free use."
"There is an annual subscription to use this solution. There is a 60-day trial to use the solution, it gives you time to decide if you want to continue using the solution."
"The price is based on the virtual desktop infrastructure(VDI) side and also is dependant on the size of the environment. The price is expensive and it could attract more purchasers in smaller organisations if it was reduced."
"The licensing fees are expensive and we pay on a yearly basis."
"The pricing model for VMware NSX is good."
"The pricing is higher than other options from Palo Alto, Fortinet, and Cisco because it is sold in a bundle."
"The price is significantly high and it can be a hurdle for many potential users."
"VMware NSX is expensive and everything is licensed. We have to pay for each individual feature."
"We haven't had to hire a dedicated network engineer because NSX handles 90 percent of it. The reduced overhead in terms of managing networks has been the biggest plus."
"We can't go without NSX, so it's invaluable from this perspective."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
10%
Healthcare Company
9%
Manufacturing Company
7%
Financial Services Firm
12%
Computer Software Company
11%
Manufacturing Company
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise4
By reviewers
Company SizeCount
Small Business33
Midsize Enterprise23
Large Enterprise69
 

Questions from the Community

What do you like most about Nutanix Flow?
Nutanix Flow Network Security is a simple solution that is usable, easy to understand, and easy to deploy.
What is your experience regarding pricing and costs for Nutanix Flow?
There are different models like Nutanix AOS Pro or Ultimate license. The prices are different, but it's not in the same price range as Cisco ACI, for example.
What needs improvement with Nutanix Flow?
Nutanix Flow Network Security needs to improve threat hunting, compliance, and policy optimization - these things that security officers would use. Making these aspects clearer would enable easier ...
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 VMware NSX?
The product has valuable features for security and network extension.
 

Also Known As

Nutanix Flow Microsegmentation
VMware Nicira, Lastline Defender
 

Overview

 

Sample Customers

JetBlue, International Speedway Corporation, Volkswagen SAIC, Brighton and Hove City Council, Foresters Financial, Janus International Group, Cloud Comrade, Serco
City of Avondale, Lumeta, Kroll Ontrack, Heartland Payment Systems, Baystate Heallth, Exostar, Tribune Media, iGATE, NTT Communications, Synergent, California Natural Resources Agency, Bloomington Public Schools, Columbia Sportswear, Join Experience S.A, Schuberg Philis
Find out what your peers are saying about Nutanix Flow Network Security vs. VMware NSX and other solutions. Updated: January 2026.
881,733 professionals have used our research since 2012.