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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:
 

Categories and Ranking

Fortinet FortiSIEM
Ranking in Security Information and Event Management (SIEM)
7th
Average Rating
7.6
Reviews Sentiment
6.5
Number of Reviews
74
Ranking in other categories
No ranking in other categories
Gigamon Deep Observability ...
Ranking in Security Information and Event Management (SIEM)
41st
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
8
Ranking in other categories
Application Performance Monitoring (APM) and Observability (38th), Event Monitoring (10th), Data Loss Prevention (DLP) (30th), Web Application Firewall (WAF) (32nd), Advanced Threat Protection (ATP) (25th), Network Packet Broker (NPB) (1st), Network Detection and Response (NDR) (17th)
 

Mindshare comparison

As of July 2025, in the Security Information and Event Management (SIEM) category, the mindshare of Fortinet FortiSIEM is 3.3%, up from 3.0% compared to the previous year. The mindshare of Gigamon Deep Observability Pipeline is 0.1%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM)
 

Featured Reviews

Oliver Jackson - PeerSpot reviewer
Systems monitoring enhanced by firewall and intrusion detection features
My primary use case for Fortinet FortiSIEM is systems monitoring and alerting. I use it for standard functions like log monitoring, incident detection, and notification.  My customers are mostly medium-sized enterprises ranging from engineering companies, mining companies, independent schools, and…
LeonardoAlves - PeerSpot reviewer
Improved the capability to analyze the environment and network problems with easy setup
It improved the capability to analyze the environment and network problems. It also helped streamline your security and performance monitoring The application I use is a script. My environment is a mix of technologies. I have many passionate people in my network who are on a journey in…

Quotes from Members

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

Pros

"The advanced agents used to collect logs have been most valuable. We have also made use of the advanced intelligence this solution offers."
"Analytics. It can provide log information from the device. With log information, I can see if there is a threat"
"Fortinet FortiSIEM's most valuable feature is the simplicity in handling multi-tenancy and the ability to switch between different clients at the same time. That was handled flawlessly."
"The most valuable features for us are the built-in reports and alerts, along with the extreme flexibility in reporting and rule generation."
"FortiSIEM is a great tool for making security processes transparent."
"AccelOps can handle a lot of data and it's just so important to true monitoring. Also, I can create a lot of rules to detect anything I like."
"I like FortiSIEM because it integrates natively with our other Fortinet solutions and the Fortinet Fabric, but it also integrates with Cisco, Palo Alto and other security fabrics."
"The interface is very easy to use. The connector in the core has FortiSIEM support from the vendor."
"The tool's most valuable feature is the encryption feature. From a security perspective, the solution hasn't significantly strengthened our security posture. However, it has greatly improved performance by streamlining encryption processes and avoiding encryption at multiple layers. This has also simplified troubleshooting, as we can whitelist certain processes."
"It is a good product. It provides network visibility, which is important. Gigamon can bring some optimizations to my network. It is helpful for security inspection, and it makes my firewall work fast because my firewall doesn't have to do the inspection of the SSL connections, for example."
"The most valuable feature for improving network visibility with Gigamon is the packet filtering capability."
"The solution is straightforward to set up."
"The most valuable feature is NetFlow."
"It offers straightforward integration."
"It has high stability."
 

Cons

"The nodes on our network did not comply with the SIEM solution. They use a different format parking log."
"Their product support, in general, is not that great. The product support is in the same ecosystem. Their support is improving but it's not that great.vvv"
"Areas for improvement would be the ease of use and the integration with Fortinet's own products."
"Network detection and response is a separate product."
"Customer support service could be better."
"Patching is not great - we're not getting the support we'd expect."
"The dashboard needs to improve."
"The biggest thing that could be better is a quicker response to support cases."
"The Gigamon Deep Observability Pipeline should have a feature showing the traffic flow within its platform. Currently, customers have to use separate tools for monitoring, which is inconvenient. If it had its visibility feature, it would make monitoring easier and more complete without needing extra tools."
"They should increase the solution's cluster capacity."
"Its filtering feature needs improvement."
"The graphical user interface could be improved."
"In terms of improvement, while the initial setup is not overly complicated, we did encounter a few issues."
"The security should be improved."
"It only inspects a specific kind of traffic. There should be different kinds of use cases."
 

Pricing and Cost Advice

"The price of the solution is expensive. The license is scalable. If there are 10 devices it is simple to license."
"There are additional features that cost more than the standard licensing fees."
"If one is cheap and ten is expensive. I rate the tool's price as an eight out of ten. Compared with Splunk or Oracle, Fortinet is cheap."
"They have a yearly subscription."
"Fortinet FortiSIEM is not an expensive solution."
"Fortinet FortiSIEM is very cost-efficient compared to other SIEM solutions."
"The price of Fortinet FortiSIEM is a lot less when compared to other solutions."
"The tool is really expensive. For what the tool does for our team, the price is fair."
"I would rate the solution as expensive, around an eight or nine out of ten. There are other competitive solutions available."
"The solution's price is reasonable."
"The solution is highly-priced."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
9%
Comms Service Provider
7%
Government
7%
Financial Services Firm
16%
Computer Software Company
15%
Healthcare Company
7%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
The pricing is reasonable, which is why it is preferred by government customers. Windows agent licenses cost around 3,000 Rupees per device per year.
What needs improvement with Fortinet FortiSIEM?
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 softw...
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?
The challenge is monitoring the cloud network. In on-premises environments, monitoring is straightforward, as I can verify all packets and communications. However, due to the way access tools and p...
What is your primary use case for Gigamon Deep Observability Pipeline?
It improved the capability to analyze the environment and network problems. It also helped streamline your security and performance monitoring.
 

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: June 2025.
860,632 professionals have used our research since 2012.