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Cisco Nexus 9000 Series vs NVIDIA Cumulus Linux comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 1, 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

Cisco Nexus 9000 Series
Ranking in Data Center Networking
9th
Average Rating
9.4
Reviews Sentiment
4.3
Number of Reviews
4
Ranking in other categories
Ethernet Switches (21st)
NVIDIA Cumulus Linux
Ranking in Data Center Networking
11th
Average Rating
5.0
Reviews Sentiment
3.4
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Featured Reviews

Fakhar Mahmood - PeerSpot reviewer
Sr. Network Administrator at i2c
Has consistently supported high availability with reliable performance and minimal disruption
Cisco Nexus 9000 Series and the routers are good, but the FMC or FTDs still need some improvement. We have Palo Alto firewalls and Next-Generation Firewalls in our environment. In comparison to the main firewall, we moved from Cisco FTDs to Palo Alto. We still have FTDs in our environment, but the majority of the firewalls have been moved to Palo Alto. They are more user-friendly, give more visibility, and are more efficient. The performance is better than Cisco. With the new features, Cisco is having some improvement for the FTD. I am currently evaluating the FTDs. The new version has better features like the encrypted visibility engine and user-based changes in FMCs, and other things are quite useful for us. FTDs do have limitations and other issues. We communicated that limitation and feature support to the Cisco account manager. We do have support for the devices. We currently have a weekly call with Cisco and they are making progress regarding new versions of the FMCs and introducing new features. The performance of deployment has improved quite a bit compared to four or five years ago.
YL
NVIDIA Network Engineer at Snetsystems
Faced challenges with configuration and automation but gained experience in modern data center networking
I usually participate in the initial setup of NVIDIA Cumulus Linux. The usual setup process for me is that NVIDIA Cumulus Linux configuration commands are very complex, more complex than any other network vendors. The Juniper CLI is very similar to NVIDIA Cumulus Linux, but NVIDIA Cumulus Linux is more complex than Juniper. The CLI configuration and commands are very complex. Other network vendors' commands are very simple and direct, so when viewing the configuration, it is clear what it is for. However, NVIDIA Cumulus Linux has very complex configuration, so when viewing the configuration, it is unclear what the configuration is for. There is enough documentation, guides, and manuals for the installation process. NVIDIA provides sufficient information for NVIDIA Cumulus Linux, but this is not standard.

Quotes from Members

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

Pros

"RealPresence works effectively."
"Cisco Nexus 9000 Series is very durable and very reliable, and there has never been any issue with it."
"Performance has been great with no abnormal behaviors detected, and the network remains stable even in failover scenarios, supporting vast environments with high availability."
"Cisco Nexus 9000 Series is quite a complex machine, but we are using a very simple configuration with basic Nexus switching, and we don't have many issues with Cisco Nexus 9000 Series at the moment in our present infrastructure."
"NVIDIA Cumulus Linux has excellent support for EVPN VXLAN."
 

Cons

"The SFP modules we are using have had issues. We have Cisco modules, but they frequently heat up or there are packet error issues."
"Cost-wise, Cisco Nexus 9000 Series is very expensive."
"We find that Cisco has been left behind by the other vendors. The other vendors have adopted new technology, and we find Cisco lagging behind."
"Regarding areas where NVIDIA Cumulus Linux could be improved or enhanced, all areas have issues when EVPN and VXLAN are not used."
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Questions from the Community

What needs improvement with Cisco Nexus 9000 Series?
After the initial integration, the focus has been on support rather than further development. Cost-wise, Cisco Nexus 9000 Series is very expensive. The pricing could absolutely be improved. So far,...
What is your primary use case for Cisco Nexus 9000 Series?
Cisco Nexus 9000 Series serves as a core router and core switch for users, and provides interconnectivity between the core switch and the access switch, as well as remote access switch for smaller ...
What advice do you have for others considering Cisco Nexus 9000 Series?
I am a customer of this solution and also a distributor. Cisco Nexus 9000 Series is usually integrated with other Cisco tools or third-party tools, including 3750, 3850, 3650, and 3750 as access sw...
What is your experience regarding pricing and costs for NVIDIA Cumulus Linux?
In my opinion about the pricing of NVIDIA Cumulus Linux, it is too expensive for its function. It is not worth the money.
What needs improvement with NVIDIA Cumulus Linux?
Regarding areas where NVIDIA Cumulus Linux could be improved or enhanced, all areas have issues when EVPN and VXLAN are not used. NVIDIA Cumulus Linux has a significant problem in that with any oth...
What is your primary use case for NVIDIA Cumulus Linux?
NVIDIA Cumulus Linux is designed for data center networks, so switches running this software cannot be used in other network areas such as campus environments. NVIDIA Cumulus Linux can only be used...
 

Overview

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