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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)
14th
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 (5th), Network Traffic Analysis (NTA) (7th), Network Automation (4th), Microsegmentation Software (2nd)
 

Mindshare comparison

As of June 2026, in the Network Detection and Response (NDR) category, the mindshare of Flowmon is 2.1%, up from 1.8% compared to the previous year. The mindshare of VMware NSX is 2.2%, 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 NSX2.2%
Flowmon2.1%
Other95.7%
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

"The solution is stable."
"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."
"If people or users are complaining that the network is slow, Flowmon can easily detect the cause of the network problem."
"NSX is good in managing security or controlling the security and the access control for each single VM."
"It does have capabilities of micro-segmenting a network, being able to create smaller segments of various types of applications separated by various tiers."
"The we can actually extend Layer 2 networking across datacenters, and also Layer 3 networking, which comes along with it."
"The most valuable features are security and dynamic routing."
"Overall, for me, it's a good solution and has been working well."
"I value the ability to dynamically configure our network on the fly using VMware NSX."
"We can see the flows inside the SDN, which has a lot of power."
"NSX extends Layer-2 scalability on Layer 3, covering the vRO and extending the capability on Layer 3 by decapsulating using a new mechanism. NSX-V was designed to use with VMware products and Success 360, providing more flexibility toward different levels of cloud, containers, and components. NSX-T gives you the ability to stretch your network across different view locations. If you have multiple sites, you can connect them using NSX-T."
 

Cons

"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."
"If there was better visualization in Flowmon Solution it would be good."
"I do not know the detailed pricing."
"The vendor should integrate a basic load balancer in future versions"
"Our technical team is always looking for the solutions that they work with to offer more convenient integrations."
"Some configuration maximums are limiting to the user, especially when it comes to the deployment of very, very large environments."
"We would like better integration with the standards on the market. For example, with OSPF, their integration in NSX is very low. It's not a full OSPF integration. It is too thin from a protocol perspective."
"NSX-T supports more platforms, and VMware NSX only supports some platforms like KVM. I want to see support for Hyper-V and other hypervisors."
"The initial establishment can be complex."
"The licensing is renewed every three years. The cost for implementation and renovation are a huge portion of that price."
"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

"The licensing fee accrues only once, but that of support is annual."
"The price of the solution could be better."
"It works with a permanent license, and then you can pay for the support. For the gold support, you need to pay yearly."
"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."
"Pricing and licensing could be improved as we are a government entity. Lower pricing could always help."
"The price of this product is too high."
"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."
"I was not involved in the purchase of the solution but I hear it is on the expensive side."
"The cost of the solution is a bit high."
"You can scale NSX if you have the resources, but it's usually expensive and complex to scale up."
"The solution is reasonable at the local level."
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Manufacturing Company
12%
Computer Software Company
9%
Construction Company
9%
Financial Services Firm
12%
Manufacturing Company
9%
Computer Software Company
9%
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...
 

Comparisons

 

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.
900,644 professionals have used our research since 2012.