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Cisco Catalyst SD-WAN vs Fortinet FortiGate comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 29, 2026

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
6.6
Cisco Catalyst SD-WAN reduces costs, boosts efficiency, and decreases downtime, with ROI seen in transport savings and operational efficiency.
Sentiment score
5.9
Fortinet FortiGate offers cost savings, enhanced productivity, and robust security, leading to high ROI and user satisfaction.
With Zero Trust provisioning via the Catalyst Center and Meraki dashboard, new branch offices are configured in hours instead of weeks, freeing engineering teams to focus on strategic initiatives rather than manual deployment.
Network Engineer at inniti network solution
They are now back to do that with the remainder of their company, so they've realized the value in 12 months and are willing to invest in the remainder of their organization.
Information Technology Consultant at Island Networks
The automation part is giving us a cost benefit and speed; we can react faster.
BDM Fortinet & BDM Teamlead at Exclusive Networks
It's a very useful tool to mitigate and protect your enterprise.
Staff Infrastructure & Security Engineer at Mozn Systems
When investing in cybersecurity with Fortinet FortiGate 200, which costs more than $10,000, companies that are growing directly can expect ROI within 1.5 to 3 years.
Manager, Information Technology Operation/Presales at TechMonarch
 

Customer Service

Sentiment score
7.5
Cisco Catalyst SD-WAN users appreciate prompt, helpful support but note occasional delays and specific engineer reliance, generally positive impressions.
Sentiment score
6.5
Fortinet FortiGate's customer service is responsive and helpful but needs improvement in response times for high-priority issues.
The principal third-level support is very good.
Technology supervisor at a non-profit with 1-10 employees
I would consider Cisco support a 10 out of 10.
Information Technology Consultant at Island Networks
I would rate Cisco's support, their customer service, and technical support as excellent.
Solution Architect at Sonda S.A.
The quick resolution of issues with Fortinet FortiGate is due to the support of the company and the fact that the equipment is easy to work with.
IT Manager at a consultancy with 10,001+ employees
I would rate the technical support for Fortinet FortiGate a ten out of ten.
NAC Support at Rah Infotech Pvt Ltd
As a solution provider, when I encounter problems, I connect directly with Fortinet support, and they provide solutions within a very short time.
Manager, Information Technology Operation/Presales at TechMonarch
 

Scalability Issues

Sentiment score
7.3
Cisco Catalyst SD-WAN is valued for its scalability, flexibility, and traffic control despite initial setup complexity and licensing challenges.
Sentiment score
7.1
Fortinet FortiGate is praised for scalable adaptability and seamless integration but requires hardware upgrades for high-performance needs.
Its controller architecture is highly matured, making it one of the most valuable and reliable LAN platforms for large enterprises.
Network Engineer at inniti network solution
Cisco SD-WAN is highly scalable and can be expanded to more than 10,000 sites.
Technical Consultant at Vertex Techno Solutions (B) Pvt Ltd
The ease of configuration and features like zero-touch provisioning enhance the scalability of Cisco SD-WAN, especially in disaster recovery situations.
Engineer at Routz
They scale up really well from smaller models like the FortiGate 40 and 50 to bigger sites with the FortiGate 100 for more throughput - up to enterprise datacenters.
IT Manager at Daltons Limited
The variation comes in terms of the interfaces and throughputs, but from a security perspective, you get the same benefit, irrespective of whether you have an entry-level unit or an enterprise.
Cewa Solutions Architect at a tech services company with 11-50 employees
We determine sizing based on multiple factors: number of users, available links, traffic types, server count, services in use, and whether services will be published.
General Surgery Specialist at Helwan University Cairo
 

Stability Issues

Sentiment score
7.4
Cisco Catalyst SD-WAN is widely regarded as stable and reliable, with improvements noted in each release.
Sentiment score
7.7
Fortinet FortiGate is highly rated for reliable stability and dependable uptime, even under heavy loads and high availability setups.
While some software-related issues and bugs were encountered, they did not cause the whole environment to crash.
Engineer at Routz
A simple issue in the control connections between the fabric causes numerous complexities.
Network Manager at HPCL
We tend to play it safe and use versions that have been tested more thoroughly, rather than necessarily old versions.
Network Engineer at a engineering company with 5,001-10,000 employees
We're experiencing 99.999% availability consistently.
Manager, Information Technology at a consumer goods company with 11-50 employees
I would rate the stability of Fortinet FortiGate a ten out of ten.
NAC Support at Rah Infotech Pvt Ltd
Currently, we are experiencing a general outage of one of the main internet service providers of the Dominican Republic, and we have not been impacted in our operations because with SD-WAN, we have another internet service provider and we are working with the second WAN connection without any disruption.
CISO at a financial services firm with 1,001-5,000 employees
 

Room For Improvement

Cisco Catalyst SD-WAN users seek simplified interfaces, better pricing, enhanced security, and more flexibility, automation, and feature support.
Fortinet FortiGate users desire better third-party integration, intuitive interfaces, comprehensive support, and resolution of cost, stability, and performance issues.
Now, they change frequently, making it difficult to obtain long-term support.
Technology supervisor at a non-profit with 1-10 employees
Better documentation with real-world examples, improved third-party integration, and more detailed monitoring dashboards would make Cisco Catalyst SD-WAN even more effective.
Network Engineer at inniti network solution
Including more features like integrating with Splunk for monitoring vulnerabilities would help eliminate the need for other SOC solutions.
Technical Consultant at Vertex Techno Solutions (B) Pvt Ltd
It would be better for customers to get immediate replacements even with a standard subscription.
Director at a tech services company with 11-50 employees
It is how quickly each of these companies adapts to that and brings in more value to the customer.
Principal Consultant at Epitome Infotech Solutions (P) Ltd
The main area for improvement in Fortinet FortiGate is the firmware versions, as we face uncertainties regarding upgrades and frequent bugs that require self-fixing of problems.
Senior Manager IT at a tech services company with 1,001-5,000 employees
 

Setup Cost

Cisco Catalyst SD-WAN is costly yet high-performing, with significant expenses compared to competitors impacting cost-sensitive markets.
Fortinet FortiGate offers competitive pricing and good value with included features, though costs may be high for small businesses.
Its pricing is justifiable due to the comprehensive solution it offers.
Technical Consultant at Vertex Techno Solutions (B) Pvt Ltd
It is also relatively cost-effective for smaller businesses when using the Meraki version.
Engineer at Routz
The pricing of Cisco Catalyst SD-WAN is rated between eight and nine out of ten, where ten is the most expensive.
Technology supervisor at a non-profit with 1-10 employees
It offers cost savings as it is generally cheaper than the competition.
IT Infrastructure Architect at Apotek 1
It is about 20% cheaper.
Network Security Engineer at TD SYNNEX
The advantages of Fortinet FortiGate over its competitors include good pricing and meeting our requirements at a lower cost.
Information Technology Infrastructure Section Head at a consumer goods company with 11-50 employees
 

Valuable Features

Cisco Catalyst SD-WAN offers centralized management, enhanced security, automation, and efficiency with easy deployment, hybrid cloud connectivity, and robust APIs.
Fortinet FortiGate offers integrated security, user-friendly management, and cost-effective protection, enhancing network performance and security seamlessly.
It also provides robust security features, including port security, analysis, mirroring, and multiple other security solutions.
Technology supervisor at a non-profit with 1-10 employees
Cisco Catalyst SD-WAN has integrated security features which include base firewall, URL filtering, IPS, and secure segmentation.
Solution Architect at Sonda S.A.
The centralized dashboard gives me a clear view of all branch sites, making it easy to manage and monitor tunnel health, bandwidth usage, and device status from one place.
Network Engineer at inniti network solution
They put in a thing called the FortiCookbook, which is very easy to read with real-life scenarios that make networking tasks like joining networks very straightforward.
IT Manager at Daltons Limited
The firewall and VPN features are the most valuable in protecting our customers' networks.
Sales & Support at a tech services company with 1-10 employees
The most valuable feature is the deep inspection for traffic, which is capable of identifying zero-day attacks.
Consultant at SKYE AS
 

Categories and Ranking

Cisco Catalyst SD-WAN
Ranking in Software Defined WAN (SD-WAN) Solutions
2nd
Ranking in WAN Edge
2nd
Average Rating
8.0
Reviews Sentiment
6.6
Number of Reviews
101
Ranking in other categories
Network Management Applications (5th)
Fortinet FortiGate
Ranking in Software Defined WAN (SD-WAN) Solutions
1st
Ranking in WAN Edge
1st
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
594
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Firewalls (1st), Intrusion Detection and Prevention Software (IDPS) (1st), ZTNA (1st), Unified Threat Management (UTM) (1st)
 

Mindshare comparison

As of August 2026, in the Software Defined WAN (SD-WAN) Solutions category, the mindshare of Cisco Catalyst SD-WAN is 11.1%, down from 13.5% compared to the previous year. The mindshare of Fortinet FortiGate is 8.7%, down from 19.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Software Defined WAN (SD-WAN) Solutions Mindshare Distribution
ProductMindshare (%)
Fortinet FortiGate8.7%
Cisco Catalyst SD-WAN11.1%
Other80.2%
Software Defined WAN (SD-WAN) Solutions
 

Q&A Highlights

NC
Content Manager at PeerSpot
Aug 23, 2021
 

Featured Reviews

ND
Network Manager at HPCL
Faced complex visibility and policy challenges but have improved basic traffic routing control
I have found some other solutions more insightful and user-friendly as compared to Cisco Catalyst SD-WAN, but the basic SD-WAN functionality is good enough. I am using it only because it was done as a pilot project, specifically for my 60 to 70 sites. For the majority of the sites, I am using Fortinet's Secure SD-WAN solution and I found that more viable and more in alignment with my requirements. For example, there is not any Internet Service Database available in Cisco Catalyst SD-WAN intrinsically. If I want to write a policy based on applications, I am not able to write it, at least in Cisco Catalyst SD-WAN Viptela deployment that we have done, and that is fairly easy to do in Fortinet. The second issue is the logging capability. I think the visibility that Fortinet Secure SD-WAN has is not even comparable. Cisco Catalyst SD-WAN does not provide that sort of insight or control as far as traffic steering is concerned. With respect to the SLAs, I barely know which sort of SLAs are violated in Cisco Catalyst SD-WAN, so I do not have clear visibility on where the traffic is moving from at my spoke or hub locations. I believe Fortinet gives me a very clear picture of where the traffic is going. Overall visibility, whether it is data traffic or logs, is much better in Fortinet compared to Cisco Catalyst SD-WAN. The complexity of Cisco Catalyst SD-WAN Viptela is noticeable and quite complicated to configure. If something breaks, you have to involve TAC and others to fix it. On the contrary, you can work with underlays. Even if your IPsec overlay tunnel is down, it does not impact your production. Thus, we find Fortinet's solution significantly better than Cisco Catalyst SD-WAN solution. I have used Application-aware Routing in Cisco Catalyst SD-WAN. However, I found it to be very complicated, especially regarding policy writing. For my breakout of VC traffic, we had to write a bunch of IP addresses for Zoom, Webex, and others. Presently, it can only identify Webex as an application, and I highly doubt whether there is any application identification for Zoom and other platforms, as we were not able to find it during our implementation. It is done through static whitelisting of the IPs, which is not a scalable solution since IPs can change at any time. Overall, the application-aware routing policies are not as flexible and scalable as the Internet Service Database feature of Fortinet provides. The struggles encompass policy writing, logging capabilities, traffic visibility, and complex configuration. There is also the issue of load balancing. We have faced considerable challenges with traffic load balancing between the links. Although the SLA targets are configurable, understanding how traffic flows is challenging, making troubleshooting exceedingly difficult. Overall, I find it a quite complicated solution with not that much operational usability.
Yati Gharat - PeerSpot reviewer
Chief Technology Officer at Litmus
Unified security management has simplified data center protection and optimized branch connectivity
In my opinion, a potential area of improvement for Fortinet FortiGate is that while it has a pretty good dashboard, which is not an issue as such, when we talk about hardware parameters, sometimes the hardware gets pretty heated up. Given the amount of traffic going through it, that is fine. However, the heat of the hardware has to be looked into. Fortinet FortiGate firewall is good, but other products like the switching part and all that fabric, in handling very audio-video traffic, sometimes it struggles on the switching part, but on the routing part, it is fine. On the firewall part, it is good; there is no issue as such up till now. Additionally, I suggest that Fortinet can add software which is in a controlled way, particularly regarding AI and ML. It should not happen that the AI/ML takes certain decisions which are not beneficial for the organization. The control should remain with the team members who are responsible for configuring this firewall.
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Comparison Review

it_user216600 - PeerSpot reviewer
Senior Technical Consultant with 51-200 employees
Jan 3, 2016
Sophos UTM vs. Fortinet FortiGate
I have used both Sophos and Fortinet products in production and I have found the Sophos UTM appliances (hardware and virtual) to be a better fit most of the time -- with a few caveats which I will touch on below. In both instances, the transition from TMG will be mostly straightforward. The main…
 

Top Industries

By visitors reading reviews
Financial Services Firm
11%
Construction Company
8%
Outsourcing Company
7%
Manufacturing Company
7%
Comms Service Provider
10%
Manufacturing Company
9%
Computer Software Company
9%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise15
Large Enterprise48
By reviewers
Company SizeCount
Small Business372
Midsize Enterprise138
Large Enterprise195
 

Questions from the Community

What is your experience regarding pricing and costs for Cisco SD-WAN?
Cisco offers premium enterprise capabilities, but its pricing, setup cost, and licensing models represent the most significant hurdles for IT organizations. Cisco hardware commands a premium price ...
What needs improvement with Cisco SD-WAN?
Cisco Catalyst SD-WAN is a strong and reliable SD-WAN solution, but there are a few areas where it could be improved. The user interface could be more intuitive for new users, and reporting and ana...
What is your primary use case for Cisco SD-WAN?
My main use case for Cisco Catalyst SD-WAN is managing and monitoring SD-WAN connectivity across branch locations. I primarily use it to monitor network health, troubleshoot tunnel and routing issu...
Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
When you compare these firewalls you can identify them with different features, advantages, practices and usage at large. In my opinion, Fortinet would be the best option and l use Fortinet too...
What is the biggest difference between Sophos XG and FortiGate?
From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know the firewalls change every 5 to 7 years as stated but you really do need to upg...
What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?
As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite good. The most valuable features for me are their web and email filtering. I wou...
 

Also Known As

Cisco SD-WAN
Fortinet FortiGate Next-Generation Firewall
 

Overview

 

Sample Customers

Doyle Research, Ashton Metzler & Associates
Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya
Find out what your peers are saying about Cisco Catalyst SD-WAN vs. Fortinet FortiGate and other solutions. Updated: August 2026.
908,877 professionals have used our research since 2012.