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DENT, the Open Source Network Operating System for Distributed Edge, Now Powers AWS Just Walk Out Technology

By Announcements, Blog, News
  • Amazon deploys open source NOS to automate more efficient customer experience with Just Walk Out technology
  • Large-scale deployment by global enterprise commerce leader signals new level of maturity for open source Networking Operating System 
  • Growing ecosystem of members & collaborators across enterprises, silicon vendors, ODMs, OEMs, and System Integrators, demonstrates deployment readiness for disaggregated hardware  

The DENT Project, an open source ecosystem utilizing the Linux Kernel, Switchdev, and other Linux based projects, announced member company Amazon has deployed the DENT operating system (dentOS) as part of its Just Walk Out Technology in third party customer stores worldwide to streamline the customer experience and scale in-store operations. 

The need for retailers to innovate quickly in the pandemic era depends highly on the network to power the in-store components that enable more seamless and touchless experiences, like grab-and-go and electronic shelf labels. The number of devices, such as IP cameras and sensors, needed to enable these features require massive, edge switching and processing. Disaggregated hardware and open-source collaboration is needed to scale and accelerate standardization at the network edge.

DENT provides access to open source based switches at a lower cost and more flexibility compared to proprietary switches with locked ecosystems. DentOS enables the Just Walk Out Technology to connect and manage thousands of devices like cameras, sensors, entry and exit gates, and access points on the network edge.

“Adoption and deployment by the world’s largest e-commerce leader with its Just Walk Out Technology is a shining example of the power of open source,” said Arpit Joshipura, general manager, Networking, Edge and IoT, the Linux Foundation. “In just three years, the DENT community created a working platform for disaggregated networks to power multiple device locations at the edge, now used by top retail giants to streamline operations. This undertaking is only possible by the power of collaborative open source development.”   

“We are pleased to leverage the DENT open-source platforms to power networking infrastructure to enable customers to skip check-out lines with our Just Walk Out Technology,” said Jason Long, Head of Networking for Amazon Physical Retail Technology and Chairman of the DENT Board. “DENT enabled us to reduce our networking costs by giving us access to open-source switches that allowed Amazon to efficiently deploy new hardware and software whenever we need instead of waiting for a bug fix from a third-party vendor”.

“With its cost-effective cloud managed networking products, Quantum Networks has established itself as a reliable partner, especially in emerging markets,” said Mukesh Majithia, Director (Technical), Quantum Networks. “Our collaboration with the DENT community and Sartura is intended to build a roadmap for market-required features. Being able to provide a better service to our customers through the use of Open Source technologies is what sets us apart from traditional vendors at a lower price.”

DENT at ONE Summit

The announcement was shared during the ONE Summit opening keynote address in Seattle, Wash. ONE Summit is the one  industry event that brings together decision makers and implementers for two days of in-depth presentations and interactive conversations around 5G, Access, Edge, Telco, Cloud, Enterprise Networking, and more open source technology developments. 

The DENT community also hosted a collocated workshop to provide details on the NOS’ architecture, use in Distributed Edge scenarios, compatible hardware and how DENT impacts and contributes to the upstream Linux kernel. 

More information about DENT is available at

Ecosystem Support:


“It is imperative that we provide reliable, private, and secure communications to US soldiers and military contractors overseas. Achieving our mission requires agility and resilience.” said Peter Catranis, CTO, Babtel. “With our joint efforts with Sartura, we have been able to leverage leading Open Source software extensively. Today these technologies are being adopted by a variety of industries, which of course benefits everyone.”


“Keysight has been involved with DENT since its inception because we are eager to drive the success and adoption of open-source communities,” said Dean Lee, Senior Director, Cloud Solution Unit, Keysight. “We are hosting the community system integration lab which provides multi-vendor interoperability testing to make DENT robust and drive customer POCs successfully. We are delighted to see the fruits of these labors come to fruition through Amazon’s pioneering deployment of DENT components in its retail stores.”


“Our collaboration with Sartura around DENT, switchdev, and mainline Linux simplifies our support model for data centers and central offices,” said Paul Arola, Senior Design Specialist, TELUS. “With no reliance on proprietary SDK’s, we can rapidly deploy new software releases, and security patches with an agility that is not possible with traditional switch NOS”.


“Sartura is one of the key organizations which has consistently delivered on the promise of a modern disaggregated network infrastructure. By providing professional services, our team empowers our partners and customers to utilize state-of-the-art open source networking technologies,” said Luka Perkov, CEO, Sartura. “We have been devoted to making Linux-based networking technologies more accessible to the broad market, and the market is responding favorably. Those that place a high importance on security, flexibility, and openness have found our efforts particularly appealing. As we move forward, our activities will be directed towards further developing the ecosystem.”

Quantum Networks

“With its cost-effective cloud managed networking products, Quantum Networks has established itself as a reliable partner, especially in emerging markets,” said Mukesh Majithia, Director (Technical), Quantum Networks. “Our collaboration with the DENT community and Sartura is intended to build a roadmap for market-required features. Being able to provide a better service to our customers through the use of Open Source technologies is what sets us apart from traditional vendors at a lower price.”

DENT 2.0, Secure and Scalable Open Source Network Operating System Aimed at Small and Mid-Size Enterprises, Available Now

By Announcements, Blog

Newest version of DENT, a Linux Foundation project, adds secure scaling, PoE control, and traffic policing, being deployed in retail environments in North America and Asia markets

Available for immediate download and testing; new Getting Started documentation available, supported hardware platforms list expanded

SAN FRANCISCO, March 8, 2022 – The DENT Project, an open source network operating system utilizing the Linux Kernel, Switchdev, and other Linux based projects, today announced DENT 2.0 is available for immediate download. The “Beeblebrox” release adds key features utilized by distributed enterprises in retail and remote facilities, providing a secure and scalable Linux-based Network Operating System (NOS) for disaggregated switches adaptable to edge deployment. DENT provides a smaller, more lightweight NOS for use at the small, remote edges of enterprise networks.

DENT 2.0 adds secure scaling with Internet Protocol version 6 (IPv6) and Network Address Translation (NAT) to support a broader community of enterprise customers. It also adds Power over Ethernet (PoE) control to allow remote switching, monitoring, and shutting down. Connectivity of IoT, Point of Sale (POS), and other devices is highly valuable to retail storefronts, early adopters of DENT. DENT 2.0 also adds traffic policing, helping mitigate attack situations that overload the CPU. 

“DENT has made great strides this past year and with its edge and native Linux approach, with a rich feature set for distributed enterprises like retail or remote facilities. DENT continues to expand into new use cases and welcomes community input with an open technical community, under the Linux Foundation,” said Arpit Joshipura, GM of Networking & Edge at The Linux Foundation.

DENT 2.0 Main Features to enable secure and scalable development

  • Secure scaling with IPv6 and NAT to appeal to a broader community of SME customers
  • PoE control to allow remote switching, monitoring, and shutting down
  • Rate limiting to protect against broadcast storms, creating a stronger OS under erroneous BUM (Broadcast, Unicast, Multicast) traffic

DENT goes beyond the data center to enable enterprises to transition to disaggregated network switches and use cases available with the distributed enterprise and edge networking. The open source NOS provides key technology leverage in retail, a sector that is leading innovation in digital transformation. The Amazon public showcase of DENT hardware at re:Invent in November 2021 reached 20,000+ attendees.

“This new release of DENT 2.0 adds critical updates focused on smaller enterprise needs. This was the goal of DENT all along, and I would like to thank our members and the wider community for this broad, concerted effort to move DENT significantly forward,” said Steven Noble, DENT Technical Steering Committee Chair. “It’s not easy building a flexible, accessible network OS, and this is why I’m proud of all the effort and coordination by so many talented individuals. If you are looking for an open source disaggregated network OS, now is great timing for looking at DENT.”

Retail stores, warehousing, remote locations, enterprise, and Small and Mid-Size Enterprises are all ideal environments for DENT deployment. Wiring closets in many facilities are small. Staff expertise may be limited, and branch-office switches from leading suppliers can require costly contracts. DENT is easily deployed on white-box hardware in small spaces. It can be set up to support dozens of wireless access points and IoT sensors, creating a manageable network to track inventory, monitor shelf real estate, scan customer activity, and perform automated checkouts.

DENT premier members include Amazon, Delta Electronics Inc, Edgecore Networks, and Marvell. DENT would also like to acknowledge important contributions from NVIDIA, Keysight Technologies, and Sartura.

To download and start testing DENT 2.0 today:

To join DENT technical working groups: 

Supporting Quotes

“Delta has built complete white box networking platforms based on DENT technology, helping drive a disaggregation model in edge that offers cost and flexibility benefits to customers looking for OEM solutions,” said Charlie Wu, Vice President, Solution Center at Delta Networks. “The deployment of our 1G and 10G Ethernet switch boxes with Marvell’s Prestera devices and the DENT OS in real world applications demonstrates the power of open source to accelerate technology innovation in networking.” 

“Edgecore Networks, as the premier member of DENT, is pleased to see the groundbreaking second release of DENT 2.0, enabling DENT community members to use the DENT’s simplified abstracts, APIs, drivers, to lessen development and deployment overhead,” said Taskin Ucpinar, Senior Director of SW Development at Edgecore Networks. “This innovative product development approach enables the community to build robust solutions with minimal effort and immediately help System Integrators deploy a networking solution to remote campuses and retail stores.”

“As the chairing company for DENT Test Working Group, Keysight has partnered with the open-source community to host the system integration test bed in Keysight labs,” said Dean Lee, Senior Director Cloud Solution Team at Keysight Technologies. “Being a neutral test vendor, we have worked with the community to harden the DENT NOS in multi-vendor interoperability, performance and resiliency. We are delighted to contribute to the success and wide adoption of DENT.

“Marvell is accelerating the build-out of Ethernet switching infrastructure in emerging edge and borderless enterprise applications, and DENT is a key component to our offerings,” said Guy Azrad, Senior Vice President and General Manager, Switch Business Unit at Marvell. “With DENT incorporated on our Prestera® switch platforms, we are currently enabling retailers to transform physical stores to smart retail connected environments that benefit consumers through easy and efficient in-store experiences.”

Additional DENT Resources

About the Linux Foundation

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