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Nagios XI vs ObserverLIVE comparison

Why PeerSpot?
 

Comparison Buyer's Guide

Executive Summary

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 (21st)
ObserverLIVE
Ranking in Network Monitoring Software
104th
Average Rating
0.0
Reviews Sentiment
8.3
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Network Monitoring Software category, the mindshare of Nagios XI is 2.4%, down from 3.1% compared to the previous year. The mindshare of ObserverLIVE is 0.3%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios XI2.4%
ObserverLIVE0.3%
Other97.3%
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.
M
IT manager at Mannai
Seamless packet analysis, deep visibility, and end-to-end network monitoring
We have experience with the VIAVI solutions, specifically the ObserverLIVE platform, which we use for network performance monitoring VIAVI helps by providing deep visibility on packet analysis end-to-end, which assists in identifying issues quickly and efficiently. VIAVI is very strong when it…

Quotes from Members

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

Pros

"Nagios has good scalability."
"Overall, it's a powerful system."
"The technical support is good."
"The solution has a lot of plugins and scripts integrated with it."
"I would recommend this solution because it's so powerful with no limitation, especially when using the XI version."
"You can save a lot of time using Nagios monitoring because otherwise you need to check all of your services or system one by one."
"All of them, but mainly: Highly-efficient server performance monitoring engine Configuration wizards Infrastructure management Configuration snapshot."
"Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried."
"VIAVI is very strong when it comes to packet analysis, especially with SDN, ACI, and Cx."
 

Cons

"It is really difficult to integrate Nagios XI with another system to generate logs and alert our management of failures in security infrastructure."
"The interface could be more user-friendly."
"The pricing has recently risen. I know they've changed what is covered under the license, however, it doesn't change the way we use it and adds nothing to our experience, and yet we now have to pay more."
"Initially, we encountered problems during the setup as some errors were noted due to a few prerequisites not being fulfilled and having some configuration files to edit and plugins to add."
"However, it is a bit complex and difficult for a first-time user."
"We're still experiencing stability issues with regards to collecting performance graphs."
"I would like to be able to extend it to all of our data centers, whether they are in the cloud or not. It would be helpful if I could connect everywhere."
"Technical support is very good but is very expensive. It is becoming more and more expensive just like the upgrade."
"VIAVI needs to include a Simple Network Monitoring Protocol (SNMP) for end-to-end monitoring solutions."
 

Pricing and Cost Advice

"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."
"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"It is good to contact experts for advice about what is the best solution for your specific infrastructure and enterprise."
"The licensing fees for this solution are approximately $3,000 USD per year."
"As it is not an agentless tool, I think it is expensive."
"Nagios XI is an expensive solution."
"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."
"You can grow into the higher-priced scale as they learn how to utilize the features for Nagios XI."
Information not available
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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%
Financial Services Firm
9%
Outsourcing Company
9%
Construction Company
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
No data available
 

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...
What is your experience regarding pricing and costs for ObserverLIVE?
The price is reasonable. I would rate it nine out of ten for cost-effectiveness.
What needs improvement with ObserverLIVE?
VIAVI needs to include a Simple Network Monitoring Protocol (SNMP) for end-to-end monitoring solutions. Currently, it lacks the ability to measure the health and status of devices such as switches ...
What is your primary use case for ObserverLIVE?
We have experience with the VIAVI solutions, specifically the ObserverLIVE platform, which we use for network performance monitoring.
 

Comparisons

 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Exmark Manufacturing, Foskor, US Deptartment of Veteran Affairs
Find out what your peers are saying about Zabbix, SolarWinds, Datadog and others in Network Monitoring Software. Updated: September 2026.
913,806 professionals have used our research since 2012.