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Nagios XI 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 XI
Ranking in Network Monitoring Software
17th
Ranking in IT Infrastructure Monitoring
16th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (9th), Cloud Monitoring Software (17th)
vRealize Network Insight
Ranking in Network Monitoring Software
23rd
Ranking in IT Infrastructure Monitoring
23rd
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
46
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2025, in the IT Infrastructure Monitoring category, the mindshare of Nagios XI is 3.7%, down from 4.0% compared to the previous year. The mindshare of vRealize Network Insight is 0.5%, down from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
IT Infrastructure Monitoring
 

Featured Reviews

Amir  Said - PeerSpot reviewer
Effective alerting enhances network monitoring experience with an easy setup
We love Nagios XI due to the fact that JPS Web is very useful. JPS monitors the modem and performs switching, monitoring the computer, and performing switching. We implement some applications and traffic monitoring. The alerting system is very effective. For instance, if we have an alarm on some RAM storage if the traffic is cut or dropped.
NiteshKumar1 - PeerSpot reviewer
The tool's configuration is easy and artifacts are easily accessible through professional services and the web
The product is highly regarded, and many customers have been using it along with other VMware products like vSphere and VMware vCloud Usage Insight. However, recently, there's been a trend among customers, especially those using VMware for a considerable period, to explore the potential of migrating to the public cloud. The common concern among these customers is how the VMware products will perform in the public cloud environment. Migrating instances from VMware to different platforms is not easy, especially when dealing with many instances across multiple customers. Customers are keen to maintain the functionality of their existing VMware products but prefer to run them on the public cloud instead of on-premise servers. Our clients for vRealize Network Insight are enterprise businesses. I rate it a nine out of ten.

Quotes from Members

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

Pros

"Nagios is stable and it's easy to use the monitoring software, which is why we chose this product."
"BPI: It allows defining peripherals to map business criticality for efficient monitoring, as required."
"Nagios XI is stable."
"I can monitor a phone on a desk to very big servers of any company."
"This is a very good solution and it is simple to use, for any company."
"The technical support is good."
"The most valuable features of Nagios XI are you can customize it based on your use case and requirements. It is flexible and easy to integrate with our systems. You can customize the solution by adding additional features using code."
"The most valuable feature is its support for different types of devices, where it can use all of the equipment that you need."
"The most valuable feature is the visualization. It's really handy to be able to classify network objects as with applications and see the interaction between them."
"The ability to use the natural language query and see the visualization is quickly intuitive, and it works very well."
"By doing dependency mapping, it makes migrations more efficient. There are less outages that require engineers to spend additional hours troubleshooting the migration failures."
"vRNI can trace the flow of each and every packet and it is easy for us to troubleshoot all the issues that we do have with the networking. We can trace down the packet to a point where it has been dropped."
"I find it user-friendly and intuitive. With the GUI interface that we do use on a regular basis, it's easy to navigate, it's easy to see, easy to query. We get reports. It's easy to use."
"It especially helps with deploying NSX, that you're not having to manually chase down and figure out what you need to do to microsegment VMs. This gives a nice option where you can say, "Hey, this VM, show me what flows are there." I can export it out and then import it as an NSX rule and job done."
"The most valuable features are the monitoring and tracking. It's also intuitive and user-friendly. The screen looks exactly the same as the other appliances for VMware, so it's easy to navigate."
"We haven't had any complaints about the stability of the solution or heard of any issues. None of our clients have mentioned running into bugs or glitches. There haven't been crashes."
 

Cons

"The Configuration Wizard needs improvement, because not all vendors are present."
"It can be quite difficult to know which drivers and agents to use when setting up."
"The user interface needs improvement."
"The reporting structure could be more streamlined."
"Open-source software is usually not user-friendly."
"The product's stability could be even better."
"The GUI could be improved."
"The product uses the backend as Perl and could be modified to a more lightweight solution like what's being offered by other vendors."
"There could be some deeper analytics into packet inspection and trace flows. It could use some kind of machine learning to look at Layer 7 traffic for potential malware or corrupt packets."
"If it had some kind of plugins with vSphere, more effective plugins with Horizon View or other VMWare products, if it had interconnectivity, I think it would be more effective than it is today."
"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 virtual appliance has rebooted."
"I'd like to see better support for being able to search the hardware NetFlow data. It ingests fairly well, but you can't tell, in a lot of cases, what source the data came from. I'd like to see more support for picking specific sources. That way you could really make a compelling use case. There are also some difficulties where it can't exactly trace the path between source and destination but if you hit the reverse flow on the same search it shows the entire path."
"It just needs to be more reliable and more accurate. At some point, there are some things where it does not match properly."
"There are some random glitches in the Web UI, but they are usually pretty cosmetic in nature. I don't really seem to use any browser other than Chrome with it. I also get some weird errors from time to time on the hardware NetFlow Collectors, where it doesn't sync data."
"The compatibility with each and every component of the infrastructure is the main thing that I am looking for. I would like them to make sure that it's compatible with different kinds of storage systems, etc. I have seen the compatibility list. I feel it can be more compatible than it is right now."
 

Pricing and Cost Advice

"The licensing fees for this solution are approximately $3,000 USD per year."
"This solution is very expensive, at approximately $5,000 USD when I purchased it, which is why I haven't upgraded my version in several years."
"We are using the free version of this solution."
"For the cost of the commercial product and support, and taking into account the open source characteristics of it, I believe it is difficult to a better value."
"As it is not an agentless tool, I think it is expensive."
"Nagios XI is an expensive solution."
"Licensing costs are reasonable."
"The pricing is high with separate licensing for the product and support."
"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."
"I rate vRealize Network Insight's pricing a seven point five out of ten."
"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."
"We have spent less time investigating network flows, so it is absolutely cost-effective."
"They should include the product in NSX because it's important to have it for deployment."
"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."
"It has brought more money into our company."
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Comparison Review

it_user174738 - PeerSpot reviewer
May 31, 2015
Nagios vs. Zabbix vs. PRTG vs. Spiceworks vs. Solarwinds Network Performance Monitor
I have researched a quite a few network monitoring tools which can be used for various monitoring purposes of not only the servers, but the intermediate routers as well. There are majorly three types of these softwares. Ones which are completely open-source, you can do almost anything you want…
 

Top Industries

By visitors reading reviews
Educational Organization
50%
Computer Software Company
7%
Financial Services Firm
6%
Manufacturing Company
5%
Financial Services Firm
15%
Computer Software Company
15%
Manufacturing Company
10%
Government
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Nagios XI?
It is an open-source platform with valuable features for performance and stability.
What is your experience regarding pricing and costs for Nagios XI?
The pricing for the Nagios XI product is good and better than other solutions. I would give it a four or five.
What needs improvement with Nagios XI?
The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate.
What do you like most about vRealize Network Insight?
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.
What is your experience regarding pricing and costs for vRealize Network Insight?
Broadcom is known for increasing product prices, making them expensive compared to what people used to pay. I liken the subscription model to not truly owning what you pay for.
What needs improvement with vRealize Network Insight?
Right now, I do not see a specific area for improvement. My main concern is understanding the intentions of Broadcom, which has acquired VMware. Broadcom should improve by going back to what was wo...
 

Also Known As

No data available
Arkin
 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
NTTi3, VCIX-NV, VMware Networking and Security Business Unit, Illumio, CompuNet
Find out what your peers are saying about Nagios XI vs. vRealize Network Insight and other solutions. Updated: April 2025.
850,236 professionals have used our research since 2012.