No more typing reviews! Try our Samantha, our new voice AI agent.

NETSCOUT InfiniStreamNG vs Nagios XI comparison

Why PeerSpot?
 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 10, 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
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (7th), IT Infrastructure Monitoring (11th), Cloud Monitoring Software (19th)
NETSCOUT InfiniStreamNG
Ranking in Network Monitoring Software
72nd
Average Rating
8.4
Number of Reviews
13
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Network Monitoring Software category, the mindshare of Nagios XI is 2.5%, down from 3.1% compared to the previous year. The mindshare of NETSCOUT InfiniStreamNG is 0.6%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios XI2.5%
NETSCOUT InfiniStreamNG0.6%
Other96.9%
Network Monitoring Software
 

Featured Reviews

Emmanuel Appiah Boateng - PeerSpot reviewer
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Simplifies setup and requires user interface enhancement
Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried. Typically, setting up a monitoring system on Linux involves cloning files from GitHub, building it, and installing many dependencies, but with Nagios XI, it wasn't like that. Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
Michael Gideon Genita - PeerSpot reviewer
Associate System Engineer at SMS Global Technologies, Inc.
Easy to set up with good documentation and helpful support
I'm using it for a customer The packet flow switch is the most valuable aspect of the solution.  It's an easy product to set up. We can scale the solution if we need to. It's stable.  The documentation is well-written and quite useful. It's compatible with other products.  Under the pocket flow…

Quotes from Members

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

Pros

"It is a very stable solution and the best solution for monitoring any IT infrastructure for all companies."
"Nagios XI allows my customer to monitor literally thousands of network and computing endpoints (both hardware and software) in real time, including custom derived SNMP polling and traps."
"Nagios XI helped me to draw the network and check for system failures."
"We love Nagios XI due to the fact that JPS Web is very useful."
"The solution's most valuable feature is its simplicity."
"I can monitor a software made in-house to software of bigger companies."
"BPI: It allows defining peripherals to map business criticality for efficient monitoring, as required."
"The dashboard allows you to see what's going on in the overall system."
"The technical support is really good. They will go above and beyond, if you are running into a problem. You can go to a sales engineer, who will engage technical support to help you out."
"It is very rock solid, and we hardly have any hardware issues."
"The packet flow switch is the most valuable aspect of the solution."
"Because we are doing proactive monitoring instead of reactive, the end users don't even see that there is something wrong."
"I love the single pane of glass view. It makes it easier to not have to navigate everywhere. It allows more simplistic visibility, without having to go from tool to tool to tool, or from window to window to window."
"When we have mobile operators who are signal partners, where one is the roaming host and another is the roamer, we are able to see their traffic. Their packets are able to detect if any faults to develop, and at what point they fail."
"If you are looking for a good application monitoring and packet analysis tool, you can strategically use NETSCOUT to get it done."
"This solution has cut our overall troubleshooting time, sometimes going down to a few hours over what might have taken one to two days to fully troubleshoot an issue, and it has helped to increase our application uptime as we try to keep the five nines."
 

Cons

"There's room for improvement in the visibility, and in the ability to extract information. Stuff like this should be more simple."
"Nagios XI can improve its GUI for users with a new look."
"The web interface is perfectly fit for purpose but isn't up there with the best modern admin panels."
"They need more documentation for the plugins."
"The important separation between Interface and Core to maintain historical plugins and methods generate complexity that makes Nagios unusable for repeat work."
"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."
"The user interface needs improvement."
"The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate."
"There is a timeout feature that we have been asking for awhile."
"The monitoring and reporting tool needs improvement. Users want more information, such as the level of detail when doing a packet analysis. They want more detail to be able to isolate down to a specific point."
"The scalability has some limitations and quirks to it. I would like to be able to upgrade rather than replace the whole thing."
"Sometimes, we can't access it."
"The technology goes end-of-life on us every year, which is why I am looking forward to vSTREAM."
"The monitoring and reporting tool needs improvement."
"The NetFlow Collectors could handle more flows per minute."
"The technology goes end-of-life on us every year, which is why I am looking forward to vSTREAM. I don't like when devices go end-of-life on us so quickly. If we can get more of an advanced notice of when an end-of-life is brought up, because our certification process within the organization takes a while."
 

Pricing and Cost Advice

"Nagios XI is an expensive solution."
"As it is not an agentless tool, I think it is expensive."
"You can grow into the higher-priced scale as they learn how to utilize the features for Nagios XI."
"The pricing is high with separate licensing for the product and support."
"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."
"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."
"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"Nagios XI is open source."
"It can be scalable. It just costs too much. With a company as big as ours, it gets too expensive to accommodate every single site."
"This product could be cheaper."
"The price is a little high."
"I would like it to be more scalable with less spend."
"The scalability is good, but it comes at a cost. E.g., if you need 100 InfiniStream because you are sending gigs or terabytes of data to one InfiniStream, then you will have to purchase another InfiniStream, which are not cheap."
"To capture more with the solution that we bought, you have to buy another InfiniStreamNG, and there are only four ports in the back."
report
Use our free recommendation engine to learn which Network Monitoring Software solutions are best for your needs.
915,341 professionals have used our research since 2012.
 

Comparison Review

it_user174738 - PeerSpot reviewer
IT Developer at a tech services company with 51-200 employees
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
Comms Service Provider
9%
Outsourcing Company
9%
Manufacturing Company
8%
Financial Services Firm
8%
Outsourcing Company
14%
Manufacturing Company
13%
Comms Service Provider
12%
Construction Company
11%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
By reviewers
Company SizeCount
Midsize Enterprise1
Large Enterprise8
 

Questions from the Community

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 is your primary use case for Nagios XI?
I normally use Nagios XI for our servers. It's not particularly used for network equipment, however, I use it for monitoring our server performance, including CPU, memory, data, and services runnin...
Ask a question
Earn 20 points
 

Also Known As

No data available
InfiniStreamNG, NETSCOUT ISNG, Infinistream
 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
U.S. Department of Defense
Find out what your peers are saying about NETSCOUT InfiniStreamNG vs. Nagios XI and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.