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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 (7th)
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 October 2025, in the Software Defined Networking (SDN) category, the mindshare of Cisco ACI is 13.4%, up from 11.5% compared to the previous year. The mindshare of Juniper Contrail Networking is 6.3%, down from 6.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Software Defined Networking (SDN) Market Share Distribution
ProductMarket Share (%)
Cisco ACI13.4%
Juniper Contrail Networking6.3%
Other80.3%
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

"I like features like policy control and micro-segmentation."
"Cisco ACI was the first product in the market, offering stability with a significant install base."
"PBR has been beneficial for network efficiency."
"It has the fastest automation. You can move and deploy services in just a couple of minutes."
"The scalability has been great. It is very easy to scale."
"Because of its automation feature, when you configure scripts for Cisco ACI, it reduces human error."
"Now, our customers have tiers of management that have meetings with about the simplest tasks because it has to be approved from upper management and senior management and by the time it gets to the engineer that's going to deploy it, it takes way too long. With the solution, they can delegate a person who would be in charge of running the ACI as a whole, and it will be much faster because it doesn't have to go through the whole chain of command for the simple task of deploying one little machine on one port in the data center."
"The most valuable features are the ease of setup for redundancy, as well as centralized control."
"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."
"Juniper Contrail Networking is a stable solution."
"It provides proactive alerting in a single dashboard solution."
"Contrail automates the excellent communication between virtual appliances."
 

Cons

"The initial setup was fairly complex and it looks terrifying when you first log in. That's one thing about ACI. It takes a bit to wrap your mind around how it works. It's not overly complicated once you understand the concepts, but someone who has never worked with anything like ACI, will initially find it difficult to grasp the complexity of it."
"Cisco needs to enhance their technical support and pay more attention to regional support."
"Because this is new technology, which requires a different way of thinking, it can be hard to understand. Therefore, I would like more documentation or education."
"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"
"The ACI setup is in its initial phases is difficult. The learning curve at the beginning is higher than a normal setup."
"I think that technical support tickets should be escalated sooner."
"I would like for them to develop integration with AWS."
"Before version 5, you could manage your firewall or load balancer from the AP. It was very basic and now they removed the whole features in the new version, so you cannot manage your load balance or firewall from your AP on L2, L4, and L7 services."
"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."
"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."
"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."
"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."
 

Pricing and Cost Advice

"I don't believe there is any licensing required."
"The good thing about Cisco is that you can trade in your old products to replace them with ACI."
"We bought a package for hardware, software, and support. At that time, Cisco was simply selling that package to distributors, then we opted for it directly."
"We have seen time improvement using the product."
"Price is always an issue."
"The product is not cheap."
"The licensing cost for ACI is expensive - I would rate its price 2.5 out of five."
"A big company can automate it themselves or spend a lot of money and buy it."
"Juniper Contrail Networking is low-cost for small and medium-sized businesses. Cisco and Palo Alto solutions are more expensive."
"There are many vendors in the wireless market that offer better pricing, solutions, and management skills compared to Juniper."
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Top Industries

By visitors reading reviews
Computer Software Company
19%
Financial Services Firm
11%
Manufacturing Company
9%
Healthcare Company
7%
Computer Software Company
18%
Manufacturing Company
16%
Retailer
10%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business21
Midsize Enterprise18
Large Enterprise87
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: September 2025.
868,759 professionals have used our research since 2012.