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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
15th
Ranking in IT Infrastructure Monitoring
15th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (8th), Cloud Monitoring Software (16th)
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 April 2025, in the IT Infrastructure Monitoring category, the mindshare of Nagios XI is 3.6%, 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

"The features I've found the most useful are the plug-ins, the fact that you can connect almost everything to it. That's very useful."
"The ability to set up templates and groups of checks, as well as customize the checks themselves."
"Though I downplayed the administrative NCC GUI, this is by far the strongest aspect of the Nagios XI product."
"The alerting system is very effective."
"Nagios XI is stable."
"I can monitor a software made in-house to software of bigger companies."
"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 Script Module in Nagios is really easy to use and is really cost efficient."
"The best feature of this application is its ability to capture everything within the same application, as well as capture all the traffic."
"It is user-friendly. It's pretty simple to deploy and to run. It gives you pretty easy-to-understand reports, very graphically intense, so you can visualize what's going on in your network."
"Whenever we say "valuable" with respect to the network, it's more towards the security. The firewall rule issues it shows us and the recommendations that we get from vRNI are the most valuable features because they are actually making our network more secure."
"A lot of time is saved when you use this type of software solution for the network. We have moved systems into the new data center and the servers and systems are much faster because of the very low latency between virtual machines."
"The solution is extremely intuitive and user-friendly. When you log in to the application you are presented with a dashboard that is very reasonable for an initial user, and you can then customize it to your specific needs. But for all the data that we've found, we've only had to go through two or three drill-downs to get into that information."
"The solution has helped improve our organization by directing the network traffic using SDN."
"It has enabled us to set up and do application discovery, as far as network traffic is concerned, and set up the appropriate rules that we need to make sure we're compliant with our security frameworks."
"What's valuable to us is the ability to get a view into the virtual space, which is something we haven't had before. Before, it was done by collecting from network endpoints and extrapolating into the virtual environment. Now it's coming directly from the virtual environment."
 

Cons

"The reporting part should be made simpler. While we can obtain all the reports we need, we always have to create work-arounds to get them."
"Nagios XI can improve network and hardware monitoring, these parameters should be simplified to allow usage for monitoring. Additionally, if there was automatic reporting it would be helpful."
"The reporting structure could be more streamlined."
"The interface could be more user-friendly."
"The technical support is variable - sometimes I get answers, but most of my tickets go unanswered."
"The scalability of Nagios XI is scalable. However, it is not easy to do."
"The product does not have SAP monitoring."
"I would like a much easier GUI so that I can delete events and logs, which will free up a lot of space."
"I would like to see more reporting features, more dashboards."
"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."
"While it's not exactly a feature, what normally happens when we are trying to look at the VM flow portion is - although Network Insight does have options to integrate a few physical switches into it - we can't really get an end-to-end flow of the network. We might be using a few switches that are not supported by Network Insight. That is where they can improve, in the support for more physical switches and network devices."
"In a very general way, I would like to see an improvement in interoperability with third-party product, from other vendors."
"It needs to be a little easier to use and to understand the information it's putting out. That would make it more helpful. If you're not a network person you need to understand things like network policies and concepts. If you gave it to a regular admin, it would be nice if it were easier for them to pick up what is going on, understand the flows and whether or not stuff should be talking to each other, as opposed to just port groups and IP addresses."
"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."
"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."
"I would like to see them expand the capabilities to infrastructure types other than just VMware."
 

Pricing and Cost Advice

"The pricing is high with separate licensing for the product and support."
"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."
"For our country in North Africa, it's expensive and we could purchase another solution for that price. But it's a reasonable price if we're speaking in international terms."
"As it is not an agentless tool, I think it is expensive."
"Licensing costs are reasonable."
"The pricing is really cost efficient. The licensing is perpetual and can be renewed very easily."
"Nagios XI is an expensive solution."
"vRealize Network Insight is expensive."
"Cost always has room for improvement, you could always make it cheaper. But I think it's a good value for what you pay for it."
"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."
"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 has brought more money into our company."
"They should include the product in NSX because it's important to have it for deployment."
"It's an expensive product because we have a lot of nodes."
"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."
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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
55%
Computer Software Company
7%
Financial Services Firm
5%
Manufacturing Company
4%
Financial Services Firm
15%
Computer Software Company
14%
Government
10%
Manufacturing Company
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.
848,253 professionals have used our research since 2012.