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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

"This solution can protect Layer 3, Layer 4 and Layer 7 attacks of applications for us, and this is important."
"It allows me to see all the traffic on my network."
"Compared to other DDoS mitigation solutions with similar deployment, FortiDDoS does not require a 24x7 NOC and has lower TCO."
"We've been completely satisfied with the product."
"The product allows the users to adjust the thresholds."
"I find the interface easy to use."
"The product's initial setup phase was really easy."
"The solution is very user-friendly and very easy to use."
"There are a number of valuable features in this product, like Cloud Signaling and Threat Intelligence feeds."
"Without Arbor, we'd probably be around 75 to 80 percent uptime."
"The artificial intelligence feature is most appreciated. This solution can lower the throughput and clear the traffic, which is something really important for us. It also provides good protection. It is user-friendly, and its integration has also been really fast. We have many critical applications, and it was easy to integrate Arbor DDoS with our website, mobile application, and web banking."
"Very user-friendly GUI Simplest way of mitigation Predefined filters/techniques to easily stop the attacks and start mitigation."
"The stateless device format means that the box is very strong for preventing DDoS attacks."
"Using standard BGP, NetFlow and SNMP ensure wide compatibility. There are also peering traffic reports that can help identify upstream peering opportunities. The ATLAS aggregation service allows us to contribute to the global DDoS data and benefit from overall trends."
"We use almost all the features of Arbor DDoS, but it really depends on the customer’s requirements, so I can’t specify exactly which features we use. However, many customers appreciate the basic DDoS protection, especially those without specific protection needs. For example, financial companies benefit from the cloud DDoS protection. It’s a straightforward solution that effectively meets their needs."
"Arbor DDoS has given us a very good ROI."
 

Cons

"Earlier versions of firmware had bugs that limit my options."
"The challenge lies within the customer environment, particularly in Brazil, where companies have stringent security requirements for implementing solutions."
"The product’s pricing needs improvement."
"The web interface could be much better."
"There aren't really any aspects of the solution we are unhappy with. It's been a positive experience overall."
"The only thing they need to do is to automate it. Today, you must create tools that do not require the use of an expert or anyone with special skills."
"Alerts and reporting features must be improved."
"All those thresholds that need to be configured should be included in the default so that user will not forget or misconfigure."
"New versions are sometimes released before the bugs are worked out."
"Auto mitigation is a feature provided when DDoS is observed on any of link/customer (configured under auto mitigation). It automatically starts mitigation with default filters; in default filter mode, there could be an impact on the customer’s link, e.g., if we have enabled monitoring of internal traffic for that link/customer, it starts mitigation on legitimate traffic."
"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."
"Based on my experience and feedback from colleagues, Arbor can make better use of the product because you have to spend a lot of time finding information in a huge number of papers."
"There are some price issues with scalability, but technically speaking, the solution is fully scalable."
"The solution needs to enhance its features to compete with other tools."
"For troubleshooting problems, it's not so intuitive. It's not straightforward. This is the core of their kernel, so they need to improve it a little bit... In F5 I have full control of everything."
"There is definitely room for improvement in third-party intelligence and integrations."
 

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."
"You need to find a way to get a good offering from Arbor by negotiating a price. That is the challenge."
"The solution is a bit costly if you're a small organization, but I think it's worth the price that they are charging."
"I believe that the price of Arbor DDoS falls under the bracket of medium to high price."
"We do not use the Arbor Cloud DDoS solution because it is too costly."
"Start with a small license. Measure your bandwidth requirements."
"Regarding pricing, I would rate it as average. Arbor DDoS offers good value for money with our DDoS filter device. For higher protection needs, Arbor’s CloudMeter’s DDoS mitigation or hardware devices might be more expensive, but customers who need them are usually prepared for the cost and the additional resources required."
"I don't deal with the pricing, but it seems that you need to get basic support in order to upgrade the software and implement some patches."
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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.
916,771 professionals have used our research since 2012.