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Cisco ACI vs Juniper Contrail Networking comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 4, 2025

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

Cisco ACI
Ranking in Software Defined Networking (SDN)
2nd
Average Rating
8.0
Reviews Sentiment
6.5
Number of Reviews
102
Ranking in other categories
Network Virtualization (1st), Cloud and Data Center Security (6th)
Juniper Contrail Networking
Ranking in Software Defined Networking (SDN)
5th
Average Rating
7.4
Reviews Sentiment
5.6
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the Software Defined Networking (SDN) category, the mindshare of Cisco ACI is 13.8%, up from 10.7% compared to the previous year. The mindshare of Juniper Contrail Networking is 6.2%, down from 6.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Software Defined Networking (SDN)
 

Featured Reviews

Rahul Khandelwal - PeerSpot reviewer
Enables streamlined data center management with automation and application-centric design
The main features of Cisco ACI that I really appreciate are the application-centric and network-centric designs, allowing you to create your network according to your application. That's helpful, and it's good for one-time implementation. The automation capabilities are really helpful. We deployed one data center using Terraform, and after deployment, many automation features are available, which can be very helpful. Based on my experience, Cisco ACI provides substantial capability; you can design your network accordingly and it's part of the SDN family, providing many benefits to the organization, especially when moving from traditional network infrastructure. Many organizations are actually using the old traditional Nexus infrastructure or some old data center devices. It gives you significant control and one-time implementation capabilities, and it also provides better performance and security. Functionality-wise, Cisco ACI provides integration using automation. We implemented it through Terraform, which was easy. Those features are available, so I don't think any new features are needed right now; something new could come up, but they have implemented many improvements over the years.
TA
Smart configuration management eliminates the need to worry about managing the network's configurations
Based on my experience in the Indian market, there are four to five areas that need improvement. First, there is a lack of marketing and awareness about Juniper, making it difficult to reach end-users and deliver solutions. Second, Juniper's education and awareness centers are costly and not easily accessible like Cisco's resources and their understanding of users' requirements. The information is not easily available on online channels like Youtube. Third, Juniper needs to promote its Mist integration better, and pricing is also a significant factor. Finally, Juniper needs to address the market's specific requirements, such as the SME sector, and offer more lower-priced products like a lower-end segment switch. In summary, improving marketing and sales, education and awareness, Mist integration, pricing, and catering to specific market requirements are areas that need improvement. I just want a good feature in the SD-WAN. Juniper should consider integrating its firewall experience with its SD-WAN devices to create a complete package. With everything moving to the cloud, companies require intelligence and security solutions for their on-prem infrastructure. Moreover, Juniper should integrate its SOC solution into its Mist portal and SD-WAN devices, including IPs, IDS, web and content filters, and messaging. This would provide a complete product and give Juniper an advantage over competitors such as Cisco. I believe that with a bundle that includes SOC and UTM flavors in their Mist portal, Juniper can make a significant impact in the market.

Quotes from Members

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

Pros

"It scales very well. When you increasingly scale with it, it makes the product easier to work with."
"Virtualization and integration with VMware is the most valuable feature."
"Having a lot of racks and switches with a single point of configuration which can be done with automation on one platform using one API. This makes everything work faster."
"You can integrate Cisco ACI well with VMware."
"PBR has been beneficial for network efficiency."
"The centralized configuration is its most valuable feature."
"The routing of traffic is one of our main focuses when utilizing Cisco ACI."
"It has the fastest automation. You can move and deploy services in just a couple of minutes."
"Contrail automates the excellent communication between virtual appliances."
"Juniper Contrail Networking is a stable solution."
"After we finished setting Contrail up, it seemed stable enough. Still, we never tested it in a real environment, so we don't have enough information to say whether it's stable with a given number of users and appliances. We have tested it in a lab environment, but we haven't tested enough to say that the platform is stable."
"It provides proactive alerting in a single dashboard solution."
 

Cons

"It would be nice if I could specify network-centric in my design, and the system would organize and set itself up in that way."
"We had issues in the first deployment when we tried to finish the migration from traditional networking to Cisco ACI."
"I would like them to simplify the way you configure the Fabric. The process is quite complex. This can be a barrier to entry. For anything, where it should take two or three steps, you have ten steps"
"My complaint about this is: We purchased the ACI gear, but to do monitoring, to do stats, to do telemetry statistics, etc. we have to purchase another product from Cisco."
"I believe there's room for improvement in terms of ACI's integration with various technologies."
"An area for improvement in Cisco ACI is security, which Cisco needs to enhance in the solution. Though Cisco ACI uses a whitelist model, you must purchase an external product, such as a security firewall solution, to make whitelisting work, which the customer could find expensive. For example, you're a customer who has Cisco ACI, and the solution doesn't have IP-based filtering, so as a customer, you've purchased Cisco ACI. However, you still need to buy another product for security, and some customers wouldn't like that. However, some customers prefer to go with Cisco ACI because of its scalability and flexibility versus other solutions such as Juniper and Aruba. Technical support for Cisco ACI also needs improvement, particularly in product knowledge."
"Better troubleshooting features would be helpful. In ACI, it can be a big mess, a real headache to troubleshoot a single issue... The troubleshooting part, and the information that ACI gives you, sometimes don't give you a proper, inside picture of what's going on within the fabric."
"Since it is a new technology, Cisco moved all the menus. This made it tricky to use."
"Juniper Contrail Networking is difficult if you do not have a certificate for Juniper. Juniper is a different type of configuration or operation than Cisco."
"Concerns were raised about the complexity of involving networking components like MX routers, which often required expertise beyond the scope of software engineers. As a result, users encountered challenges in achieving comprehensive understanding and troubleshooting of networking issues within the Contrail environment."
"Visibility, especially for the top of the platform, is a nightmare. The top was documented incorrectly and really complex to complete. In the end, it worked but only after several weeks of work with the support of a Juniper solution engineer in Holland."
"Juniper needs to address the market's specific requirements, such as the SME sector, and offer more lower-priced products like a lower-end segment switch."
 

Pricing and Cost Advice

"The price could be improved. It is expensive, but then again, it is Cisco. The price is worth what you pay for."
"Cisco is much more expensive than other vendors, especially when it comes to the licensing."
"We used Cisco Professional Services for the deployment. They were outstanding, but very expensive."
"Once you sign for the start kit implementation, you have to go all the way through to the implementation, even if you are experiences issues."
"On a scale from one to ten, where one is cheap and ten is expensive, I rate the solution's pricing an eight out of ten."
"Yearly, we pay around one point two million for the solution."
"The thing that I like the most from Cisco is the support and all the documentation that they have. We do have to pay for it though."
"Price is always an issue."
"There are many vendors in the wireless market that offer better pricing, solutions, and management skills compared to Juniper."
"Juniper Contrail Networking is low-cost for small and medium-sized businesses. Cisco and Palo Alto solutions are more expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
20%
Financial Services Firm
10%
Manufacturing Company
9%
Healthcare Company
7%
Computer Software Company
19%
Manufacturing Company
14%
Retailer
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What are the biggest differences between Cisco ACI and VMware NSX?
There are some very major differences between both the Products and to name a few. -Cisco ACI have physical network gear (9K Switches) where the Code runs in ACI Policy Mode & the UCS server wh...
What are the biggest differences between Cisco ACI and VMware NSX?
Once you know your way around the Cisco ecosystem, using Cisco ACI is not so difficult. It is a global product, so when you change one interface, changes are automatically reflected on every switch...
What do you like most about Cisco ACI?
The flexibility of adding new components with minimal impact on existing services running in the data center is a key benefit of this ACI-based solution.
What needs improvement with Juniper Contrail Networking?
Juniper Contrail Networking enables the utilization of tier-two appliances and the creation of virtual networks or appliances. This is facilitated through the use of filtering devices. Additionally...
What is your primary use case for Juniper Contrail Networking?
We use the solution to host many services for multiple clients. We aim to transition from hosting Cisco clients to utilizing virtual appliances. Therefore, we intend to virtualize their infrastruct...
What advice do you have for others considering Juniper Contrail Networking?
Juniper Contrail Networking presents a distinct alternative for those encountering issues with vendor solutions. Consequently, individuals who may have previously hesitated to explore OpenStack sol...
 

Also Known As

No data available
Contrail Networking
 

Overview

 

Sample Customers

Bowling Green State University, du, Qatar University
Lithium Technologies, Orange Business Services, Cloudwatt, Symantec, Cloud Dynamics, CloudSeeds
Find out what your peers are saying about Cisco ACI vs. Juniper Contrail Networking and other solutions. Updated: July 2025.
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