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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

"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."
"Flowmon is more easy to understand and helps find network issues more quickly."
"The artificial intelligence and automatic detection system in Flowmon Solution are perfect for every, type of customer, such as government and commerce."
"The solution is both stable and scalable and we are happy with the product."
"The solution is stable."
"If people or users are complaining that the network is slow, Flowmon can easily detect the cause of the network problem."
"The most valuable features are its security aspects, especially the IPS and IDS for intrusion detection and protection."
"It provides a single pane of glass. You can do the switching, routing, load balancing, IPS, IDS, etc. Everything is under one umbrella. So, there is no vendor dependency over there."
"They developed the hypervisor, which is very valuable to us, because it has saved us a lot of money just on the micro-segmentation piece."
"We saw ROI within the first year and a half."
"From my experience, VMware on a private cloud is a good choice."
"The solution is robust as it covers everything we want to do and is stable, so we're happy enough with it. We have had no problems so far. Everything is great."
"The microsegmentation allows me to sleep at night. My job is reducing risk, plugging security holes, and working with the automated layer security. Even if somebody spins up a new server, it has to have a tag in NSX."
"The solution is very good at micro-segmentation."
 

Cons

"If there was better visualization in Flowmon Solution it would be good."
"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."
"The price of the license could be lower."
"I do not know the detailed pricing."
"The scalability is not perfect."
"We would to have a reverse proxy. This would add great value to the solution."
"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."
"We've have had good and bad experiences with them. We don't always find them to be so impactful. Sometimes the support guy isn't so on top of resolving the issue and it can take a while to sort out."
"Occasionally the licensing is not very clear. They should make it easier to understand."
"There are always issues integrating with Cisco."
"Lacks integration with other solutions."
"It's not feature-rich."
 

Pricing and Cost Advice

"It works with a permanent license, and then you can pay for the support. For the gold support, you need to pay yearly."
"The price of the solution could be better."
"The licensing fee accrues only once, but that of support is annual."
"It is an expensive product, but cheaper than some competing solutions."
"We have saved man-hours and decreased our security exposure."
"The tool's pricing is reasonable."
"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."
"The licensing is renewed every three years. The cost for implementation and renovation are a huge portion of that price."
"The licensing fees are expensive and we pay on a yearly basis."
"All the institutions have to pay monthly for the services in the cloud. They have to pay $30,000 every month for this service every three years."
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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.
908,800 professionals have used our research since 2012.