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Nagios Fusion vs vRealize Network Insight comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 2024

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 Fusion
Ranking in IT Infrastructure Monitoring
68th
Average Rating
8.2
Reviews Sentiment
7.8
Number of Reviews
4
Ranking in other categories
No ranking in other categories
vRealize Network Insight
Ranking in IT Infrastructure Monitoring
39th
Average Rating
8.6
Reviews Sentiment
6.0
Number of Reviews
47
Ranking in other categories
Network Monitoring Software (36th)
 

Mindshare comparison

As of March 2026, in the IT Infrastructure Monitoring category, the mindshare of Nagios Fusion is 0.4%, up from 0.2% compared to the previous year. The mindshare of vRealize Network Insight is 0.8%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
IT Infrastructure Monitoring Mindshare Distribution
ProductMindshare (%)
vRealize Network Insight0.8%
Nagios Fusion0.4%
Other98.8%
IT Infrastructure Monitoring
 

Featured Reviews

SI
Operation Director at Digital Pulse Sdn Bhd
A suitable choice for unified and efficient infrastructure monitoring across diverse environments providing user-friendly GUI, cost-effectiveness, and versatility
We use it for this specific client, they've deployed multiple instances of it across various locations to facilitate monitoring. To effectively monitor their infrastructure, it seems necessary to implement additional monitoring solutions for all three types of devices they have Nagios Fusion…
Shaijith KB - PeerSpot reviewer
Senior System Specialist at General Directorate of Residence and Foreigners Affairs (GDRFA)
Comprehensive management and detailed reports benefit operations while improvements are needed in support and maintenance
We have Tanzu and OpenShift. We have OpenShift, Canonical, and the Tanzu one. The Tanzu platform from VMware is a Kubernetes platform. We haven't completely installed Tanzu yet; we installed the vROps part. vRealize Network Insight is beneficial because you can control the East-West traffic. vRealize has a component called NSX, which has East-West traffic controlling and micro-segmentation, that is one of the best options, and we have the layer extension, layer 2 extension possible through NSX. If you have anything accountable in any business, even in a candy business, having proper accountability on what you are selling and buying will save a lot. If you don't know what you're selling and buying, you will end up with a loss. My team does not use the flow analytics feature; we have a security and network monitoring team, which is a different SOC team. I am using it as an administrator internally. We perform different tasks including costing analysis, capacity management, and many other things. vRealize Network Insight has a concern about the maintenance part, as it requires a person to monitor it completely. It's not something you install and your report will be generated automatically. You have to work on this properly to get the insights. vRealize Network Automation, vRealize Operations, and vRealize Network Insight are completely related to the network. I cannot say much about these network aspects because I am on the operations side, but overall, the vRealize suite is good for reporting perspective or any ISO-related documentation; this is very helpful. The product is called vRealize Operations Manager, and now it is referred to as Aria or vAria. I am now a Senior System Specialist. We use different metrics because we have multiple departments, and we can monitor utilization and comparisons with the previous year. On a scale of one to ten, I rate this solution a seven.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"It is easier for client installation, and the configurations are doable even for a newcomer in the field."
"It's very easy to manage and monitor it."
"Nagios Fusion version 12.8 excels in user-friendly GUI design, cost-effectiveness, and ease of deployment."
"Being open source lets us customize it for our monitoring needs, saving us money."
"The solution is also extremely intuitive and user-friendly."
"The tool's ease of configuration and use and the availability of information and artifacts through professional services and the web are key factors that customers find valuable."
"To some degree, it has increased performance, helped to more easily manage networks, and provided visibility."
"One of the most valuable features is the ability to look at the traffic flows, to look at NetFlow data."
"The gradual way the Network Insight shows you all the relevant information about your networks. It's pretty good. You can really dig deep deep inside and see where the problem is, where it comes from, what you have inside, how did you configure it. Also, it has alerts so you can have pretty much quite a big overview about your network. This is really something good."
"I would definitely advise, especially healthcare companies that need to secure their products, NSX using vRNI as their tool."
"The initial was straightforward. You can have it up and running in one hour."
"It has helped us tremendously to be able to easily deploy NSX in our environment with microsegmentation."
 

Cons

"Adding application performance monitoring to the product alongside infrastructure monitoring would make it a more complete and useful solution."
"Nagios Fusion should include a 'remember me' option when logging in, so we don't need to enter a username and password every time."
"In future iterations of this solution, there is a desire for more seamless integration with other monitoring software."
"There are some bugs, although not that many. There are some situations where the solution is not stable but the number of problems is not very high."
"After you use it for a little while you become accustomed to it but the layout doesn't feel very intuitive. You have to dig around and find the exact place where you can find the information, where you can actually see your east-west traffic, etc. I would like them to bring that information more to the forefront, instead of having to find it."
"vRNI needs more remediation where it hooks into NSX."
"There is room for improvement when it comes to pricing because we pay here in Brazil, and all the costs are based on the dollar."
"The product is slightly complex to use, while still being user-friendly. It could use more training modules, as it is not a straightforward product."
"I would like to see application identification. That would be cool."
"I would like to see more reporting features, more dashboards."
"I would like to see more interoperability on the firewall and low balancer sides."
"The pricing is steep."
 

Pricing and Cost Advice

"The pricing is quite reasonable, especially when compared to the broader market."
"The solution has helped us to reduce time, increase performance, reduce costs, and even easily manage networks. We are probably seeing 10 to 20 percent labor savings because we are able to be very specific and focused on what we want to do. It ends up saving the customer money and makes us be more efficient on our cost deliveries."
"It's a little expensive, but for what you're getting out of the product, you often see the trade-off. It depends on the type of licensing you have. It might be a little too pricey for some."
"vRealize Network Insight is expensive."
"I rate vRealize Network Insight's pricing a seven point five out of ten."
"The solution has reduced the time that we spend on other products. For example, with NSX, we were able to quickly find things that we would normally spend days trying to figure out."
"It reduces costs. It takes something that may be challenging and makes it more usable and visual by being able to bring in tools, seeing what their impact is, such as microsegmentation and application rationalization, and seeing it quickly."
"It has brought more money into our company."
"They should include the product in NSX because it's important to have it for deployment."
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Top Industries

By visitors reading reviews
No data available
Manufacturing Company
14%
Computer Software Company
14%
Healthcare Company
8%
Financial Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise9
Large Enterprise41
 

Questions from the Community

Ask a question
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What is your experience regarding pricing and costs for vRealize Network Insight?
In VMware you have to buy a separate license for it. We have VVF and VCF-type of licenses, and if you want to go with this NSX and sort of higher-end professional services, you need to go with VCF....
What needs improvement with vRealize Network Insight?
There is room for improvement as not all cases are getting resolved, and we often do not get L3 support directly, having to go through L1 and L2, resulting in delays that usually are a headache for...
What is your primary use case for vRealize Network Insight?
We have Tanzu, and we also work with multiple Kubernetes services such as Nutanix and Google. We are working on these Kubernetes services on the operations side. For Tanzu, we have several componen...
 

Also Known As

No data available
Arkin
 

Overview

 

Sample Customers

NuBlue, St.Elisabeth Hospital, Akamit Systems, National Radio Astronomy Observatory, ValueClick, Sunrise Banks
NTTi3, VCIX-NV, VMware Networking and Security Business Unit, Illumio, CompuNet
Find out what your peers are saying about Nagios Fusion vs. vRealize Network Insight and other solutions. Updated: March 2026.
884,933 professionals have used our research since 2012.