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Nagios Network Analyzer 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

Nagios Network Analyzer
Ranking in Network Traffic Analysis (NTA)
11th
Average Rating
7.8
Reviews Sentiment
7.6
Number of Reviews
9
Ranking in other categories
No ranking in other categories
VMware NSX
Ranking in Network Traffic Analysis (NTA)
7th
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 Detection and Response (NDR) (8th), Network Automation (5th), Microsegmentation Software (3rd)
 

Mindshare comparison

As of November 2026, in the Network Traffic Analysis (NTA) category, the mindshare of Nagios Network Analyzer is 3.5%, up from 1.8% compared to the previous year. The mindshare of VMware NSX is 4.3%, up from 2.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Traffic Analysis (NTA) Mindshare Distribution
ProductMindshare (%)
VMware NSX4.3%
Nagios Network Analyzer3.5%
Other92.2%
Network Traffic Analysis (NTA)
 

Featured Reviews

Gilbert Mwiinga - PeerSpot reviewer
Baobab College logo System Administrator at Baobab College
Effectively monitors the uptime of all equipment and network connectivity
There is room for improvement on the setup side. It's not very user-friendly, especially for those who aren't tech-savvy. I find it a bit hard to set up initially. It could be done better to make it easier to configure. It would be beneficial for users. For additional features, I have an idea. I'm not sure if it's already there, but it would be great to have a feature that maps the network and shows which devices are connected. It could provide information about how traffic flows and offer a visual representation of how devices are physically connected to each other. It would be like a network audit feature that displays the connections between switches and other devices. So, in future releases, a network mapping and visualization feature would be valuable.
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

"The solution offers very good system monitoring; it's easy to manage your network, as well as your hardware and software, and it's really useful."
"The tool's UI is user-friendly, and pricing is affordable. It is very easy to deploy and learn."
"Its initial setup process is straightforward."
"Since we have been using it for the last five years we have done very well with reference to ROI."
"The network monitoring feature, especially, stands out to me."
"The solution is useful for monitoring network devices."
"This is a product that I can recommend."
"Network tracking is the most valuable feature of Network Analyzer."
"It gives more security and micro-segmentation. It helps to set network configurations in an easy way."
"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."
"NSX helps us by making IT management and operations more efficient. When VMs spin off from the DC to the DR site, all required settings on the network level are handled automatically."
"With Lastline, the effort to put in into the protecting the users against zero-day threats and malware can be subsequently reduced."
"The best part is the blueprint creation where I can create their things and then move on to the target environment."
"The microsegmentation is a good feature, and you can segment details, products, or hardware information."
"VMware NSX has improved our organization in the way that we can now deploy many VMs faster than before and so we are scaling up much faster."
"Has a great firewall."
 

Cons

"The graphics and reports can be a little bit better."
"The bandwidth for its front-end version needs enhancement."
"There is room for improvement on the setup side."
"It's very hard to install materials. You need a lot of documentation. They should make it easier to install and configure the solution."
"Nagios Network Analyzer should integrate an application monitoring solution to monitor application bandwidth usage."
"There are some loopholes you need to be aware of from a security perspective."
"They need to have some automation models embedded in them."
"It has an old-fashioned interface."
"We would to have a reverse proxy. This would add great value to the solution."
"The support from VMware NSX could improve."
"Just being more knowledgeable about the different functions."
"It lacks standard security features, which is why I rate it so low."
"Going through and getting more features sets from the routing protocols is definitely necessary for the future."
"They have to work more and more on the integration for public cloud services and have cyber security platform integration."
"The engineering team has room for improvement. They should have have more of a Knowledge Base about different case studies and should develop more advanced features. These kinds of improvements will change the way things get done."
"Everybody needs a network to connect to, and VMware doesn't readily provide one."
 

Pricing and Cost Advice

"They charge around ten thousand per month for one thousand nodes. That is their overall cost, but it differs on which company you are applying to, whether you are a service provider or an enterprise."
"The solution is cost-efficient."
"I rate Nagios Network Analyzer's pricing a six out of ten."
"I was not involved in the purchase of the solution but I hear it is on the expensive side."
"The pricing is higher than other options from Palo Alto, Fortinet, and Cisco because it is sold in a bundle."
"The price is based on the virtual desktop infrastructure(VDI) side and also is dependant on the size of the environment. The price is expensive and it could attract more purchasers in smaller organisations if it was reduced."
"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."
"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."
"We are using the free version of the solution."
"I'm unable to give information on the pricing or licensing cost of VMware NSX because I've never been someone who looks into the economic part of any security or virtualization solutions. That's handled by an entirely different team, and I don't even have the slightest idea about the costs associated with the solution, though I've heard pricing for VMware NSX is on the higher side."
"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
Outsourcing Company
19%
Manufacturing Company
14%
Construction Company
12%
Financial Services Firm
7%
Outsourcing Company
11%
Financial Services Firm
10%
Manufacturing Company
10%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Large Enterprise3
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise23
Large Enterprise70
 

Questions from the Community

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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

No data available
VMware Nicira, Lastline Defender
 

Overview

 

Sample Customers

NuBlue, St.Elisabeth Hospital, Akamit Systems, National Radio Astronomy Observatory, ValueClick, Sunrise Banks
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 Nagios Network Analyzer vs. VMware NSX and other solutions. Updated: September 2026.
920,769 professionals have used our research since 2012.