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Nutanix Flow Network Security vs VMware NSX comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

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
2nd
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
107
Ranking in other categories
Network Virtualization (1st), Cloud and Data Center Security (5th), Network Traffic Analysis (NTA) (7th), Network Detection and Response (NDR) (10th), Network Automation (4th)
 

Mindshare comparison

As of June 2026, in the Microsegmentation Software category, the mindshare of Nutanix Flow Network Security is 6.9%, up from 6.3% compared to the previous year. The mindshare of VMware NSX is 15.4%, down from 16.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Microsegmentation Software Mindshare Distribution
ProductMindshare (%)
VMware NSX15.4%
Nutanix Flow Network Security6.9%
Other77.7%
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 allows for policies that enable complete visibility and traffic control."
"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."
"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."
"It is a very stable solution. Stability-wise, I rate the solution a ten out of ten."
"They also introduced that they develop API first and the rest follows."
"Nutanix Flow Network Security is a simple solution that is usable, easy to understand, and easy to deploy."
"When comparing the costs of Nutanix Flow versus managing multiple VLANs and many other firewalls, it is far less expensive."
"Has a great firewall."
"NSX gives us the ability to put our network, NSX, onto any network there is, which allows us not to have to go to the network team to create networks or VLANs for networks, and we can just create all our networks right from the start."
"The most valuable features are the micro-segmentation and integrated security options."
"The ease in which to install this product and make it work straight away without minimum changes in your physical network is simply astonishing."
"Our clients are very satisfied that we can limit ourselves to NSX without the need to purchasing additional network systems and physical devices."
"We have many advantages with the cloud infrastructure."
"It's very important for them to have small footprints and have as much services in their servers, as possible."
"The firewall is its most valuable feature."
 

Cons

"The most difficult part is the configuration of the initial blueprints."
"The documentation offered by the product is an area with certain shortcomings where improvements are required."
"I would rate Flow Network Security's stability seven out of ten - it could be improved."
"The solution’s pricing could be improved."
"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."
"For customers who are running Nutanix Flow and AHV, the largest area for improvement is in the disaster recovery environments."
"We would like the reporting functionality of this solution to be improved."
"Nutanix Flow Network Security needs to improve threat hunting, compliance, and policy optimization - these things that security officers would use."
"They could branch out to the physical layer."
"Lastline is not a cheap product if compared with their competitors."
"The tool's setup is complex and we need support to implement it."
"The initial configuration and integration within our existing environment were not easy. The configuration process was a bit complex, specifically during the initial setup."
"The price is expensive and it could attract more purchasers in smaller organisations if it was reduced."
"Lacks integration with other solutions."
"Occasionally the licensing is not very clear. They should make it easier to understand."
"There are sometimes mismatch in the control, the details and what you actually see on the transport note."
 

Pricing and Cost Advice

"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."
"This model is very accessible to implement."
"The product is available for free use."
"Flow Network Security is available on a three-year license, with annual renewals of the maintenance fee."
"There are different licensing models."
"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."
"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."
"Pricing and licensing could be improved as we are a government entity. Lower pricing could always help."
"There is a license required for this solution and there is also a support license available. The price of the solution could be better."
"We are using the free version of the solution."
"I would rate the pricing of VMware NSX as seven out of ten"
"If five is a good price and one is a high price, I would rate the price a one out of five."
"VMware has always been geared towards enterprise and their pricing options are a bit high. Their price is higher than other options in the market."
"The subscription is on a yearly basis."
"You can scale NSX if you have the resources, but it's usually expensive and complex to scale up."
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Top Industries

By visitors reading reviews
Healthcare Company
11%
Financial Services Firm
9%
Computer Software Company
8%
Manufacturing Company
8%
Financial Services Firm
12%
Manufacturing Company
9%
Computer Software 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 Business34
Midsize Enterprise23
Large Enterprise69
 

Questions from the Community

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 advice do you have for others considering Nutanix Flow?
I am still working with these products. The cloud provider I'm usually using for Nutanix NC2 clusters is Azure. I usually purchase Nutanix directly from Nutanix. The solution is suitable for all ty...
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 is your experience regarding pricing and costs for VMware NSX?
When measuring complexity and costs for our organization, we consider some parameters for effectiveness. In terms of effectiveness in reducing operational complexity, I measure it to be high on the...
 

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: June 2026.
902,270 professionals have used our research since 2012.