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Flowmon vs VMware NSX comparison

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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)
8th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
107
Ranking in other categories
Network Virtualization (2nd), Cloud and Data Center Security (5th), Network Traffic Analysis (NTA) (7th), Network Automation (5th), Microsegmentation Software (3rd)
 

Mindshare comparison

As of November 2026, in the Network Detection and Response (NDR) category, the mindshare of Flowmon is 2.1%, up from 1.9% compared to the previous year. The mindshare of VMware NSX is 2.9%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Detection and Response (NDR) Mindshare Distribution
ProductMindshare (%)
VMware NSX2.9%
Flowmon2.1%
Other95.0%
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…
Mahesh Bhadoriya - PeerSpot reviewer
Technical Manager at Allianz Cloud Private Limited
Micro segmentation has strengthened zero trust security and isolates production from test environments
The advantages of VMware NSX include its micro-segmentation for internal security at the firewall and VM levels, which is very powerful and helps us comply with complete Zero Trust security models. We are able to achieve this and configure network level virtualization with no dependency on VLANs. Micro-segmentation helps improve our security significantly. We are not totally dependent upon our physical upfront firewall, and it makes sense to configure everything using VMware NSX, leading to multiple improvements in our organization. We moved from traditional networking such as VLANs from the firewall and switches to VMware NSX segmentation. We achieve one firewall per VLAN and can stop lateral movement such as ransomware control. The Zero Trust model is the main functionality and architecture it offers, allowing application isolation, such as having a separate production and test environment. Consistent networking and security policies across different environments have a major and very positive impact on our business operations, allowing us to achieve the security posture we want with compliance and regulations.

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."
"If people or users are complaining that the network is slow, Flowmon can easily detect the cause of the network problem."
"The solution is stable."
"Flowmon is more easy to understand and helps find network issues more quickly."
"The solution is both stable and scalable and we are happy with the product."
"The artificial intelligence and automatic detection system in Flowmon Solution are perfect for every, type of customer, such as government and commerce."
"When you're talking about virtual networks, I think NSX is one of the greatest products and will soon be the leader in the market."
"It's pretty stable. Just deploy it and just forget about it."
"The ability to scale from different clouds. At the moment, the scalability of the product is the number one thing that I saw."
"If the new user is looking for micro-segmentation in the network space, then VMware NSX is the best solution."
"I have found VMware NSX to be easy to use."
"The organization of it is logical, useful, and intuitive."
"It operates on a logical level, providing a comprehensive and centralized way to manage your network resources."
"The most valuable feature of VMware NSX is the ease of use and its user friendly. For example, it is simple to change the subnet masks."
 

Cons

"I do not know the detailed pricing."
"The price of the license could be lower."
"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 vendor should integrate a basic load balancer in future versions"
"The initial establishment can be complex."
"Traffic flow introspection topology visibility is definitely needed because at the moment, NSX-T lacks in this area."
"I would like to have automating reporting built into common service management platforms, such as JIRA, Serviceaide, and ServiceNow."
"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."
"Going through and getting more features sets from the routing protocols is definitely necessary for the future."
"In the next release, they should enhance the visual interface. With NSX-T, it's difficult to communicate between the public cloud and the container."
"There is room for improvement in VMware NSX's workload management, particularly in the orchestration layer and in managing workloads across multiple clouds."
 

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."
"VMware has a subscription and perpetual license. In the New Year, they're changing many things about the licensing model. Previously, NSX was licensed according to the number of sockets inside the appliance, so we bought VMware licenses based on that. However, that may have changed this year. We are still contacting the vendors to understand the new licensing strategy."
"The price is significantly high and it can be a hurdle for many potential users."
"The price is pretty 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."
"Pricing and licensing could be improved as we are a government entity. Lower pricing could always help."
"VMware NSX is a cheaper product compared to its competitor, Cisco."
"The solution is reasonable at the local level."
"This solution requires a licence."
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920,939 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
13%
Outsourcing Company
11%
Construction Company
10%
Manufacturing Company
8%
Outsourcing Company
11%
Financial Services Firm
10%
Manufacturing Company
10%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise23
Large Enterprise70
 

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: September 2026.
920,939 professionals have used our research since 2012.