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Fortinet FortiSIEM vs Gigamon Deep Observability Pipeline comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 18, 2024

Review summaries and opinions

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

ROI

Sentiment score
5.1
Fortinet FortiSIEM delivers security improvements and customer satisfaction, leading to positive financial outcomes despite no explicit ROI measurement.
Sentiment score
4.8
Gigamon Deep Observability Pipeline boosts productivity and efficiency through reduced troubleshooting, improved security visibility, and optimized resource management.
The platform has resulted in time saved and reduces mean time to response, making it a great platform.
Cybersecurity Team Leader at EMAK For Integrated Solutions
 

Customer Service

Sentiment score
7.7
Fortinet FortiSIEM's customer service is seen as professional but has mixed reviews on response times and support accessibility.
Sentiment score
5.4
Gigamon Deep Observability Pipeline's technical support is generally praised, though outsourced support presents challenges for some users.
There is a knowledgeable, though small, team of support engineers around the world.
Network Engineer at Laminar Communications Pty Ltd
Local tech support is available, however, for more critical or technical issues, we depend on the OEM directly, especially when it comes to on-prem solutions.
IT Solutions Product Manager at a computer software company with 11-50 employees
The customer support for Fortinet FortiSIEM is excellent.
Cybersecurity Team Leader at EMAK For Integrated Solutions
The technical support by Gigamon Deep Observability Pipeline is good because it has a local architect in my area.
Senior Relationship Banker at Joint stock Commercial Bank for Foreign Trade of V
 

Scalability Issues

Sentiment score
7.6
Fortinet FortiSIEM scales well, accommodating different business sizes but faces challenges with licensing, architecture, and configuration complexities.
Sentiment score
6.5
Gigamon Deep Observability Pipeline excels in scalability, especially in cloud environments, accommodating large deployments with ease and flexibility.
Fortinet FortiSIEM's scalability is excellent, and it is also easy to configure, maintain, and operate.
Cybersecurity Team Leader at EMAK For Integrated Solutions
Fortinet FortiSIEM is highly scalable.
Network Engineer at Laminar Communications Pty Ltd
At any point in time, when network devices increase or there is a change in the infrastructure, we can add more workers and collectors to expand our infrastructure setup.
IT Solutions Product Manager at a computer software company with 11-50 employees
 

Stability Issues

Sentiment score
6.2
Fortinet FortiSIEM is reliable and stable, handling updates well, with users rating its performance highly despite occasional bugs.
Sentiment score
7.2
Gigamon Deep Observability Pipeline delivers stable, reliable performance in data centers, with high ratings despite minor issues in older systems.
It stabilizes itself in an appropriate time, so its uptime is good.
IT Solutions Product Manager at a computer software company with 11-50 employees
Some stability issues occur, but Fortinet's technical support team provides assistance.
Network Engineer at Ogma Consulting
These issues may cause unusual errors and user interface issues.
Network Engineer at Laminar Communications Pty Ltd
 

Room For Improvement

Fortinet FortiSIEM needs improvements in integration, user interface, support, cost, and features like AI and automated responses.
Gigamon Deep Observability Pipeline needs security enhancements, improved GUI, better performance, cloud support, and easier setup and hardware handling.
Recently, they revised it to a subscription-based, all-inclusive license.
IT Solutions Product Manager at a computer software company with 11-50 employees
The built-in APIs in Fortinet FortiSIEM are somewhat lacking and could be improved for better integration with external ITSM products.
Network Engineer at Laminar Communications Pty Ltd
Fortinet FortiSIEM should broaden its remediation part to include more features for incident management.
Network Engineer at Ogma Consulting
 

Setup Cost

Fortinet FortiSIEM provides flexible pricing that can be cost-effective, but costs may increase with additional modules and scalability.
Gigamon Deep Observability Pipeline is often seen as expensive, but pricing perceptions vary based on needs and roles.
Windows agent licenses cost around 3,000 Rupees per device per year.
Network Engineer at Ogma Consulting
Setting it up for oneself as an enterprise-licensed product can be quite expensive.
Network Engineer at Laminar Communications Pty Ltd
My experience with pricing, setup cost, and licensing for Fortinet FortiSIEM is wonderful, as it offers an excellent license compared to other vendors.
Cybersecurity Team Leader at EMAK For Integrated Solutions
 

Valuable Features

Fortinet FortiSIEM provides automation, analytics, and integration with a user-friendly interface for efficient threat detection and network monitoring.
Gigamon Deep Observability Pipeline improves network visibility, performance, and security through advanced traffic analysis, integration, and process efficiencies.
I find the real-time monitoring and correlation capabilities effective for security alerts.
Network Engineer at Ogma Consulting
It provides extensive logging and record-keeping for internal networks, cloud applications, and services as well as perimeter physical network security.
Network Engineer at Laminar Communications Pty Ltd
Reliability and scalability have helped me in my work, especially because the license for Fortinet FortiSIEM is excellent from a cost perspective, and we can add more collectors as we expand.
Cybersecurity Team Leader at EMAK For Integrated Solutions
The Pipeline's Comprehensive Insights into data flows have helped improve operational efficiency and security.
Senior Relationship Banker at Joint stock Commercial Bank for Foreign Trade of V
 

Categories and Ranking

Fortinet FortiSIEM
Ranking in Security Information and Event Management (SIEM)
7th
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
76
Ranking in other categories
AI Observability (5th)
Gigamon Deep Observability ...
Ranking in Security Information and Event Management (SIEM)
43rd
Average Rating
8.6
Reviews Sentiment
6.5
Number of Reviews
9
Ranking in other categories
Application Performance Monitoring (APM) and Observability (39th), Event Monitoring (11th), Data Loss Prevention (DLP) (32nd), Web Application Firewall (WAF) (31st), Advanced Threat Protection (ATP) (26th), Network Packet Broker (NPB) (1st), Network Detection and Response (NDR) (16th)
 

Mindshare comparison

As of January 2026, in the Security Information and Event Management (SIEM) category, the mindshare of Fortinet FortiSIEM is 2.8%, down from 3.0% compared to the previous year. The mindshare of Gigamon Deep Observability Pipeline is 0.4%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Market Share Distribution
ProductMarket Share (%)
Fortinet FortiSIEM2.8%
Gigamon Deep Observability Pipeline0.4%
Other96.8%
Security Information and Event Management (SIEM)
 

Featured Reviews

SY
Network Engineer at Ogma Consulting
Comprehensive monitoring boosts security, yet incident management features need expansion
Fortinet FortiSIEM should broaden its remediation part to include more features for incident management. Currently, to manage repetitive incidents or for remediation, I need to use a separate software called FortiSOAR. Additionally, the search functionality in FortiAI should be improved to provide more precise results, making it easier for me to understand what actions need to be taken.
TN
Senior Relationship Banker at Joint stock Commercial Bank for Foreign Trade of V
Experience boosts operational efficiency while performance sees room for improvement
I don't have specific information on whether it was purchased on the AWS marketplace or somewhere else. I am working with Dynatrace Operator. I am also working with Algosec, Alluvio, CrowdStrike, Firemon, Gigamon Deep Observability Pipeline, and other solutions. I think it's a good tool, and I am satisfied with it. We have not stored cloud workloads with Gigamon Deep Observability Pipeline yet; we are still on-premises. The technical support takes about one to two hours to respond, which is acceptable. I am satisfied with the scalability of the product. The interface is good.
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Financial Services Firm
9%
Comms Service Provider
8%
Educational Organization
6%
Financial Services Firm
14%
Computer Software Company
11%
Healthcare Company
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise22
Large Enterprise24
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise1
Large Enterprise5
 

Questions from the Community

What do you like most about Fortinet FortiSIEM?
Fortinet FortiSIEM needs to provide better API integrations to users.
What is your experience regarding pricing and costs for Fortinet FortiSIEM?
My experience with pricing, setup cost, and licensing for Fortinet FortiSIEM is wonderful, as it offers an excellent license compared to other vendors.
What needs improvement with Fortinet FortiSIEM?
Fortinet FortiSIEM is great overall. Performance could be enhanced, but I do not wish to elaborate on needed improvements.
What do you like most about Gigamon Deep Observability Pipeline?
The most valuable feature for improving network visibility with Gigamon is the packet filtering capability.
What needs improvement with Gigamon Deep Observability Pipeline?
Gigamon Deep Observability Pipeline needs to improve its performance. I face issues with performance because we use SPAN, and the SPAN traffic is not good. They need to improve their performance.
What is your primary use case for Gigamon Deep Observability Pipeline?
I am working with Gigamon Deep Observability Pipeline and Firemon, and I have been working with it for a year.
 

Also Known As

FortiSIEM, AccelOps
Gigamon, GigaSecure
 

Overview

 

Sample Customers

FortiSIEM has hundreds of customers worldwide in markets including managed services, technology, financial services, healthcare, and government. Customers include Aruba Networks, Compushare, Port of San Diego, Cleveland Indians, Infoblox, Healthways, and Referentia.
Amica Insurance, College of William & Mary, Gamma, IntercontinentalExchange, OppenheimerFunds
Find out what your peers are saying about Fortinet FortiSIEM vs. Gigamon Deep Observability Pipeline and other solutions. Updated: December 2025.
880,901 professionals have used our research since 2012.