NETSCOUT InfiniStreamNG vs Nagios Core comparison

Nagios and NETSCOUT are both solutions in the Network Monitoring Software category. Nagios is ranked #12 with an average rating of 8.3, while NETSCOUT is ranked #78. Nagios holds a 2.5% mindshare in NMS, compared to NETSCOUT’s 0.4% mindshare. Additionally, 80% of Nagios users are willing to recommend the solution, compared to 92% of NETSCOUT users who would recommend it.

Nagios Core

Read 51 Nagios Core reviews

3,994 Views
3,475 Comparison Views

80% willing to recommend

NETSCOUT InfiniStreamNG

Read 13 NETSCOUT InfiniStreamNG reviews

617 Views
605 Comparison Views

92% willing to recommend

Nagios Core

NETSCOUT InfiniStreamNG

Comparison Buyer's Guide

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Executive SummaryUpdated on Oct 10, 2024

Nagios Core and NETSCOUT InfiniStreamNG compete in network performance monitoring. Nagios Core is favored for its affordability while NETSCOUT InfiniStreamNG stands out for its comprehensive feature set, providing justified investment returns.

Features: Nagios Core supports robust network monitoring, alerting capabilities, and benefits from numerous community plugins. NETSCOUT InfiniStreamNG offers advanced traffic analysis, packet capture capabilities, and application performance management.

Room for Improvement: Nagios Core could improve with easier setup processes and more formal support channels. Its customization options might seem daunting for users seeking out-of-box solutions. NETSCOUT InfiniStreamNG might enhance its offering by lowering entry-level pricing, expanding community plugin options, and simplifying some in-depth features for greater accessibility.

Ease of Deployment and Customer Service: Nagios Core requires a potentially complex setup with community-driven support, considered less formal. NETSCOUT InfiniStreamNG provides streamlined deployment and professional support services, emphasizing enterprise-grade customer assistance.

Pricing and ROI: Nagios Core has a minimal setup cost, appealing to budget-conscious firms while offering a high ROI via low operating expense. NETSCOUT InfiniStreamNG has a higher initial investment, justified by extensive insights and analytics, delivering substantial ROI for organizations needing detailed performance data.

To learn more, read our detailed NETSCOUT InfiniStreamNG vs. Nagios Core Report (Updated: September 2025).

Buyer's Guide

NETSCOUT InfiniStreamNG vs. Nagios Core

September 2025

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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 Core

Ranking in Network Monitoring Software

12th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

IT Infrastructure Monitoring (11th)

NETSCOUT InfiniStreamNG

Ranking in Network Monitoring Software

78th

Average Rating

8.4

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of October 2025, in the Network Monitoring Software category, the mindshare of Nagios Core is 2.5%, down from 3.2% compared to the previous year. The mindshare of NETSCOUT InfiniStreamNG is 0.4%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Network Monitoring Software Market Share Distribution
Product	Market Share (%)
Nagios Core	2.5%
NETSCOUT InfiniStreamNG	0.4%
Other	97.1%

Network Monitoring Software

Featured Reviews

Nishith-Vyas

Tech Lead at STL Digital Limited

Valuable reporting and alert system with room for PDF export improvements

The NetEase reporting structure needs improvement, especially the availability report, which is weak. It should be generated automatically with minimal human intervention and should be exportable as a PDF. Besides that, an integrated PDF export feature for reports is necessary. Also, the alert mechanism and graphing mechanism need to be integrated properly into Nagios Core. Currently, integrating these requires advanced Linux knowledge. Integration of more visualization tools like Grafana and Prometheus for better graphing and visualization is also recommended.

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Michael Gideon Genita

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…

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Quotes from Members

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

Pros

"Key features include the GUI interface, its notification capabilities, and the real-time reporting."

"The most valuable feature depends on the project. It's great if you need to check to ensure a service is running 24/7. I can use the full solution for free, and it's flexible. If I need to add a dashboard, I can integrate it with Nagios. Cloud synchronization is wonderful."

"Provides timely notifications."

"Other products are good but from the configuration point of view Nagios is really very lightweight. The price is really good in my opinion. Another important thing is that my Nagios engine still works with Dual core 8GB ram for the last 10 years."

"Nagios Core is very configurable. Whatever you want, you can do it."

"Our customers like that Nagios Core is an open source solution. It can be customized to our customers' specific needs."

"Dashboard provides monitor of total assets."

"Nagios Core integrates with tools like Splunk, Datadog, or Dynatrace. It is usually used as a feed to provide more technical information about devices or hosts to another system."

More Nagios Core pros

"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."

"It helps us to assist our customers to isolate problems. If it is us who is having the problem, then we can use it to streamline the process."

"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."

"The most valuable feature is utilization."

"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 allows us to get quicker resolutions. We can see exactly what is using up the bandwidth, so we can assist end users."

"The ability to troubleshoot customers' connectivity has been very beneficial."

"It's an easy product to set up."

More NETSCOUT InfiniStreamNG pros

Cons

"Making it a little easier to configure and set up from the start would help. There are multiple layers that you have to wade through to be able to set it up, to do it the right way, and to get it to do what you want it to do."

"The tool needs to improve the integrations."

"The scalability needs improvement, it's not scalable at this time."

"Bandwidth monitoring is the pain point for me because Nagios Core does not monitor bandwidth effectively like Cacti does."

"The UI is a little outdated and graphics could be displayed in a better way."

"I believe Nagios Core will need to provide an option for big data platforms in the future."

"There is room for improvement in the graphics."

"The alerting mechanism in Nagios Core could be improved."

More Nagios Core cons

"We don't use the single pane of glass view, even though we own it."

"The NetFlow Collectors could handle more flows per minute."

"There is a timeout feature that we have been asking for awhile."

"Only problems that we have had are fiber issues going into the TAPs or vSTREAMs, which are usually local site issues."

"I'd like them to make the product more user-friendly."

"Being able to manage the packet flow switches in nGeniusONE would be great."

"It's not able to communicate with our probes."

"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."

More NETSCOUT InfiniStreamNG cons

Pricing and Cost Advice

"The solution is expensive."

"We are using the free version of Nagios Core."

"Lessening the price point would be an improvement."

"The enterprise version has technical support. The version we are using is free."

"Most the plugin features are free."

"It's free."

"The product is cheaply priced."

"I would rate the solution's pricing an eight out of ten."

More Nagios Core pricing and cost advice

"The price is a little high."

"To capture more with the solution that we bought, you have to buy another InfiniStreamNG, and there are only four ports in the back."

"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."

"This product could be cheaper."

"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."

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Top Industries

By visitors reading reviews

Computer Software Company

14%

Government

Comms Service Provider

Manufacturing Company

Financial Services Firm

18%

Manufacturing Company

15%

Energy/Utilities Company

11%

Government

10%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	20
Midsize Enterprise	11
Large Enterprise	22

By reviewers
Company Size	Count
Midsize Enterprise	1
Large Enterprise	8

Questions from the Community

What do you like most about Nagios Core?

What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services.

See all answers

What is your experience regarding pricing and costs for Nagios Core?

Nagios Core is a free and open-source product. We don't charge for the product itself, but we charge for the man-hour costs related to installation, configuration, ongoing operation, and maintenance.

See all answers

What needs improvement with Nagios Core?

The dashboard should be improved. It's very simple. I don't have a very clear or specific suggestion. You can change the skin of the dashboard, however, it's good for me.

See all answers

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Comparisons

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Compared 21% of the time

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Compared 14% of the time

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Centreon vs Nagios Core

Compared 7% of the time

Checkmk vs Nagios Core

Compared 6% of the time

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Compared 26% of the time

Cisco Secure Network Analytics vs NETSCOUT InfiniStreamNG

Compared 23% of the time

Riverbed NPM+ vs NETSCOUT InfiniStreamNG

Compared 22% of the time

cPacket cClear vs NETSCOUT InfiniStreamNG

Compared 18% of the time

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Compared 12% of the time

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Product Reports

Buyer's Guide

Nagios Core

September 2025

Download Nagios Core product report

Buyer's Guide

NETSCOUT InfiniStreamNG

September 2025

Download NETSCOUT InfiniStreamNG product report

Also Known As

No data available

InfiniStreamNG, NETSCOUT ISNG, Infinistream

Overview

This is IT infrastructure monitoring's industry-standard, open-source core. Free without professional support services.

Nagios

NETSCOUT’s new ISNG platform harnesses the power of IP intelligence by mining traffic in real-time to deliver accurate and actionable data for service assurance, cybersecurity and business intelligence applications. The InfiniStreamNG platform fully supports the nGeniusONE and Iris application suites.

NETSCOUT

Sample Customers

Airbnb, Cisco, PayPal, FanDuel

U.S. Department of Defense

Buyer's Guide

NETSCOUT InfiniStreamNG vs. Nagios Core

September 2025

Free Report: NETSCOUT InfiniStreamNG vs. Nagios Core

Find out what your peers are saying about NETSCOUT InfiniStreamNG vs. Nagios Core and other solutions. Updated: September 2025.

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