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Flowmon 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

Flowmon
Ranking in Network Detection and Response (NDR)
15th
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
4
Ranking in other categories
No ranking in other categories
VMware NSX
Ranking in Network Detection and Response (NDR)
10th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
107
Ranking in other categories
Network Virtualization (1st), Cloud and Data Center Security (6th), Network Traffic Analysis (NTA) (6th), Network Automation (4th), Microsegmentation Software (2nd)
 

Mindshare comparison

As of August 2026, in the Network Detection and Response (NDR) category, the mindshare of Flowmon is 2.0%, up from 1.8% compared to the previous year. The mindshare of VMware NSX is 2.5%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Detection and Response (NDR) Mindshare Distribution
ProductMindshare (%)
VMware NSX2.5%
Flowmon2.0%
Other95.5%
Network Detection and Response (NDR)
 

Featured Reviews

Pifu Lin - PeerSpot reviewer
Senior System Engineer at DYNASAFE TECHNOLOGIES PTE. LTD.
Quick identification of network issues enhances performance monitoring
We will try to Proof of Concept (POC) to a client in Taiwan. We just use the features for the Network Performance Monitor (NPM) Flowmon is more easy to understand and helps find network issues more quickly. We need this solution to monitor the network performance. We started using it three…
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

"If people or users are complaining that the network is slow, Flowmon can easily detect the cause of the network problem."
"The solution is both stable and scalable and we are happy with the product."
"It is an open platform, so in terms of integration, we are quite happy. We can integrate it with other SNMP solutions. We can also integrate it with security solutions, such as a SIEM solution."
"The artificial intelligence and automatic detection system in Flowmon Solution are perfect for every, type of customer, such as government and commerce."
"Flowmon is more easy to understand and helps find network issues more quickly."
"The solution is stable."
"NSX's stand-out function is the distributed firewall. The firewall system is just top-notch, and I haven't seen another solution like it."
"The most valuable feature of VMware NSX is the ability to set up virtual networking environments."
"VMware NSX is used for micro-segmentation, and if you have a virtual VMware pool then you can segment them separately, similar to a firewall for virtual micro-segmentation."
"The solution's customer service is good."
"VMware NSX offers some of the best features for security, such as micro-segmentation."
"The solution is very stable; there are no bugs or glitches, it doesn't crash or freeze, and it's reliable."
"I am impressed with the tool's protection."
"Over the last two years, they've enhanced a lot, especially in regard to integration with OpenStack."
 

Cons

"I do not know the detailed pricing."
"The price of the license could be lower."
"It would be helpful to have more details about the monitoring of the infrastructure. It should have support for SNMP. This is something that is currently not there in the product."
"If there was better visualization in Flowmon Solution it would be good."
"Its licensing model could be VM based."
"One aspect that needs improvement is the need for further automation."
"We have done three installations and we have not had any critical issues. The time it took for the installation was approximately two days. However, they should provide better documentation."
"It is a bit tricky to install the various components and to get it set up properly."
"An area for improvement in VMware NSX is that it uses up more resources and is heavy on the network. What I'd like to see in the next release of the solution is more automation."
"The reporting functionality could be better, and there could be an easier way of forwarding events. There's room for improvement in the product."
"Going through and getting more features sets from the routing protocols is definitely necessary for the future."
"There are always issues integrating with Cisco."
 

Pricing and Cost Advice

"The price of the solution could be better."
"The licensing fee accrues only once, but that of support is annual."
"It works with a permanent license, and then you can pay for the support. For the gold support, you need to pay yearly."
"It is an expensive product, but cheaper than some competing solutions."
"The price of this product is too high."
"The price of VMware NSX is optimal. Additionally, the price of the solution can be negotiated with the vendor. Many areas of the solution can impact the cost, such as features, time for onboarding, and support needed."
"I would rate the pricing of VMware NSX as seven out of ten"
"The licensing is renewed every three years. The cost for implementation and renovation are a huge portion of that price."
"If five is a good price and one is a high price, I would rate the price a one out of five."
"The subscription is on a yearly basis."
"VMware NSX is expensive and everything is licensed. We have to pay for each individual feature."
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Construction Company
10%
Manufacturing Company
9%
Computer Software Company
9%
Financial Services Firm
11%
Manufacturing Company
9%
Computer Software Company
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise23
Large Enterprise69
 

Questions from the Community

What is your experience regarding pricing and costs for Flowmon Anomaly Detection System?
I don't understand the price. I am in deployment, so I do not know the detailed pricing.
What is your primary use case for Flowmon Anomaly Detection System?
We will try to Proof of Concept (POC) to a client in Taiwan. We just use the features for the Network Performance Monitor (NPM).
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

Flowmon Anomaly Detection System
VMware Nicira, Lastline Defender
 

Overview

 

Sample Customers

SEGA
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 Flowmon vs. VMware NSX and other solutions. Updated: June 2026.
908,834 professionals have used our research since 2012.