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Fortinet FortiDDoS vs NETSCOUT Arbor DDoS Protection & Mitigation comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Oct 12, 2026

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 FortiDDoS
Ranking in Distributed Denial-of-Service (DDoS) Protection
15th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
15
Ranking in other categories
No ranking in other categories
NETSCOUT Arbor DDoS Protect...
Ranking in Distributed Denial-of-Service (DDoS) Protection
4th
Average Rating
8.8
Reviews Sentiment
6.9
Number of Reviews
57
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Fortinet FortiDDoS is 2.0%, down from 2.5% compared to the previous year. The mindshare of NETSCOUT Arbor DDoS Protection & Mitigation is 5.5%, down from 11.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Mindshare Distribution
ProductMindshare (%)
Arbor DDoS5.5%
Fortinet FortiDDoS2.0%
Other92.5%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

MO
IT Analyst at Evapco, Inc.
Reliable protection and smooth setup enhance company security
Currently, I have two firewalls, with one located in Sorocaba, model 90D, and the other in São Paulo, model 30D. They are connected by VPN. I use the firewalls for VPN and final protection for my company, and my equipment is maintained by an internet company called Multiprox The equipment works…
reviewer1331304 - PeerSpot reviewer
Director Of Research And Development at a comms service provider with 11-50 employees
Automated threat intelligence and flow-based mitigation have improved our DDoS defense
A very useful feature in Arbor DDoS is its ability to send flow spec announcements to routers. For example, if it is clear that a Layer 3 or Layer 4 attack is occurring and the attack pattern is identified through source and destination IP addresses and ports, you can generate flow spec filters. These filters are transferred through BGP to border routers, which automatically build filters, mitigating the attack even at the network's boundary and preventing it from reaching the TMS. This allows the TMS to focus on other tasks. This is a highly effective feature that can mitigate huge volumetric attacks; for example, we experienced a 32-gigabit attack, and all those 32 gigabits were dropped by our border routers, not by Arbor DDoS itself. The flow spec announcement was generated by Arbor DDoS, and as far as I know, the same technology is used by Radware, but it comes under a different feature and a different license. At the time, we were told that flow spec mitigation was an additional very expensive license to purchase from Radware, while Radware included everything in one package.

Quotes from Members

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

Pros

"It allows me to see all the traffic on my network."
"Among its key features: Detects and mitigates DDoS attacks at L3 to L7; negligible to zero false-positives; Generates and sends reports without the need for an expensive third-party solution."
"I find this product the best on-premises (in-line) DDoS mitigation solution that suits my current and future requirements."
"The product's initial setup phase was really easy."
"We use it to protect our users and their data."
"The equipment works very well, and I have not encountered any issues with it. It is a good solution for my company."
"This solution can protect Layer 3, Layer 4 and Layer 7 attacks of applications for us, and this is important."
"I find the interface easy to use."
"Arbor DDoS is easy to use, provides effective blocking of DDoS attacks, and can be used for DNS, web, and main servers. Additionally, this solution is far easier to operate than others solutions, such as Fortinet DDoS."
"The Arbor Networks SP device provided great visualization of the network traffic."
"Because this Arbor DDoS product is the best, I do not need to spend time supporting it."
"Its scalability is big. It is for large deployments of big organizations and service providers."
"It's just one dashboard with mitigation. You decide which mitigation you want and at what threshold to do this or that. Its operation is pretty simple. It's easy."
"It's very user-friendly."
"There were huge attacks in October, around 62 attacks at 30 gigabits per second, at one of our banks. We used Arbor DDoS to mitigate these attacks, and it performed great."
"Inside this product, there are many different configurations for protection, and we have one of the best experiences with it, specifically with the Atlas product."
 

Cons

"The solution can be a little more user-friendly and it can be more affordable."
"The initial setup is complex. It is always complex."
"All those thresholds that need to be configured should be included in the default so that user will not forget or misconfigure."
"The primary area for improvement is the on-premises capacity limit, currently fixed at 10 GB."
"The web interface could be much better."
"Technical support isn't too good with Fortinet. They could be more responsive and helpful overall."
"I find that there have been issues in the past year with the solution hanging. It freezes often."
"Alerts and reporting features must be improved."
"New versions are sometimes released before the bugs are worked out."
"The look and feel of the management console is a little old, excessively simple. If you compare it with other solutions, the look and feel of the console is like you're using technology from five or six years ago. It doesn't show all the technology that is actually behind it. It looks like an older solution, even though it is not."
"Because we had some routers that were somewhat old, they were not integrated with Arbor. They did not support the NetFlow version that Arbor was running. That was a challenge. We had to upgrade the routers. Some backward-compatibility would be helpful."
"I would also like more visibility into their bad actor feeds, their fingerprint feeds. We try to be good stewards of the internet, so if there are attacks, or bad actors within our networks, if there were an easier way for us to find them, we could stop them from doing their malicious activity, and at the same time save money."
"The support got worse after NETSCOUT acquired Arbor."
"Their RESTful API is still a work-in-progress."
"The solution's shortcomings are related to its documentation, so it's an area that needs to improve."
"An issue which needs to be addressed concerns information I received of attacks on the radar and Arbor, allegedly, not taking any action."
 

Pricing and Cost Advice

"The solution is reasonably priced."
"The product’s pricing needs improvement."
"It's quite pricey."
"Pricing is slightly on the higher side."
"The price of this solution is a little high in the African market, it should be lower."
"The price is a little high."
"Arbor is striking a good balance between pricing and what they deliver."
"Arbor's products are very expensive. Their competitors are cheap when compared with Arbor."
"The pricing of the solution is cheap."
"Our customers always complain about the price of the product."
"The licensing of a complete Arbor solution, including fire-walling and unified site management, can get expensive."
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Top Industries

By visitors reading reviews
Comms Service Provider
12%
Financial Services Firm
11%
Government
8%
Manufacturing Company
7%
Financial Services Firm
16%
Outsourcing Company
11%
Comms Service Provider
8%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Large Enterprise6
By reviewers
Company SizeCount
Small Business26
Midsize Enterprise14
Large Enterprise29
 

Questions from the Community

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
Arbor would be the best bid, apart from Arbor, Palo Alto and Fortinet have good solutions. As this is an ISP, I would prefer Arbor.
What is your experience regarding pricing and costs for Fortinet FortiDDoS?
Fortinet FortiDDoS offers lower costs compared to other solutions. The licensing costs are annually renewed.
What needs improvement with Fortinet FortiDDoS?
There is a need for more features that protect personal information, especially given the PDP issue in Indonesia.
Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
I would say if it’s an ISP that will build a scrubbing center, Netscout/Arbor is a good solution. In all other solutions, Imperva is a great choice.
What is your experience regarding pricing and costs for Arbor DDoS?
The prices for Arbor DDoS are expensive. The licensing is subscription-based. From our sales department, they discuss that prices are very high.
What needs improvement with Arbor DDoS?
I do not have a direct response regarding improvements for Arbor DDoS. Regarding areas for improvement in security, the only thing that comes to mind is that previously Arbor DDoS had many fingerpr...
 

Also Known As

Fortinet DDoS, FortiDDos
Arbor Networks SP, Arbor Networks TMS, Arbor Cloud for ENT
 

Overview

 

Sample Customers

Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Xtel Communications
Find out what your peers are saying about Fortinet FortiDDoS vs. NETSCOUT Arbor DDoS Protection & Mitigation and other solutions. Updated: September 2026.
916,582 professionals have used our research since 2012.