Cumulus Linux
The world’s most flexible open network operating system for bare metal switches
Cumulus Linux is a powerful open network operating system that allows you to automate, customize and scale using web-scale principles like the world's largest data centers.
Browse Products
Why choose Cumulus Linux
Cumulus Linux is the only solution that allows you to affordably build and efficiently operate your network like the world’s largest data center operators, unlocking vertical network stacks.
100+ HARDWARE PLATFORMS
Choose compatible hardware based on your needs and your budget
FASTER IT DELIVERY
with native integration and best-of-breed tools for automation, monitoring, analytics and more
NETWORK PROTECTION
with industry-standard security features plus added precautions exclusive to Cumulus Linux
FLEXIBLE OPEN ARCHITECTURE
that allows you to customize your network and scale seamlessly
REDUCED CAPEX
by lowering the cost of acquiring open switches and optics
REDUCED OPEX
by leveraging existing talent and assigning more switches per engineer
BUILT FOR AUTOMATION FIRST
Enjoy networking that’s consistent and repeatable
COMPLETE STANDARDIZATION
With Linux across the entire data center, you’ll reduce complexities and get complete interoperability
What network challenge are you facing?
What you get with Cumulus Linux
Technology we innovated in-house to make your life easier:
OSPF Unnumbered
Create configs faster by no longer depending on unique IP addresses, which simplifies automation.
BGP Unnumbered
Automation gets even easier with this simplified IP approach. All you need is one IP template for leaf nodes and one for the spine nodes. Easy, right?
Redistribute Neighbor
Get VM and host mobility by plugging in your server into any RDNBR switch making it L3 discoverable on the fabric. If you have any need to move the server, there’s no need to reconfigure.
Prescriptive Topology Manager (PTM)
Efficiently go from whiteboard to physical cable. With PTM, you can program your data center to verify connections and resolve issues faster.
Virtual Routing and Forwarding
Run multiple network paths without the need for multiple switches, giving you traffic isolation and network segmentation for multiple devices.
Lightweight Network Virtualization (LNV)
Accelerate VXLAN deployments with a controllerless solution.
Ethernet Virtual Private Networks (EVPN)
Get freedom from L2 complexities with this modern, standards-based, interoperable technology that allows legacy layer 2 applications to operate over next-generation layer 3 networks. Learn more about EVPN.
Network Command Line Utility (NCLU)
Use our rich and simple command line for easy network configuration and operation.
Plus standard technology that we’ve improved:
Disaggregation
Unlock the stack with open architecture using a Linux operating model.
Native security
From OpenSSH to authentication, Cumulus Linux keeps your switches secure.
Hardware your way
Launch fully-loaded with Cumulus Express or choose from our 50+ hardware partners.
Unified stack
With a unified operating model across compute and network, you'll reduce complexities and get guaranteed interoperability.
Software driven
Our software writes directly to the silicon giving you a software driven and hardware accelerated approach.