Communicate
beyond frontiers

It's no coincidence DTN is in our name. We're your people for Delay- and Disruption-tolerant Networking.

Built for links that come and go

DTN nodes can store data and forward it when the next connection becomes available, so communication can continue even when there is no continuous end-to-end path.
Disruption stops being a failure and becomes part of the design.

Areas of application
Space Communication
Space
Communication
Satellites, probes and
ground stations
Maritime Research
Maritime
Research
Sensors and vessels across
the ocean
Offshore Communication
Offshore
Communication
Wind farms and platforms
at sea
Car-to-X Communication
Car-to-X
Communication
Vehicles exchanging data
on the move
Reliable One-Way Communication
Reliable One-Way
Communication
Delivery without a
return path

Your network.Your requirements.Your DTN solution.

Keep what works. We build DTN around your existing systems and requirements, not the other way around.

Services

DTN engineering
from concept to operation

1
Research & Development
New networking technology, researched and validated.

We research and develop network architectures, protocols and software, with a focus on DTN and challenged networks. New concepts are prototyped, tested and validated for real-world use.

2
Network Design & Integration
Communication systems built around your requirements.

We design solutions for your specific challenges and integrate them seamlessly into your environment. We can work with your existing stack, use our software, or build the components you need.

3
Consulting & Support
DTN expertise when and where you need it.

We provide expert guidance on DTN and conventional networking, from architecture decisions and system reviews, to optimization and troubleshooting. We also offer ongoing maintenance and dedicated technical support.

Products

Production-ready DTN
you can depend on

When you move from exploring to depending on DTN, we stand behind it – with guarantees, support, and platforms tailored to how you operate.

Enterprise Stack

A maintained, production-ready DTN stack for organizations that want to deploy our established software without a custom development project. D3TN-ES combines stable releases with defined support and SLAs.

Open-source access, plus:
Maintained production releases
Guaranteed backward compatibility
Defined support with clear SLAs
Enterprise Platform

For organizations that need DTN tailored to their environment. We design, adapt and integrate the required DTN components into your system and provide hands-on support throughout its operation.

Everything in D3TN-ES, plus:
DTN tailored to your architecture and requirements
Dedicated engineering and technical support
Ongoing maintenance and platform operation
Projects

DTN in action
across space, sea, and beyond

Cloud-native operation over disrupted links

The DARKSOL project explores how containerized workloads can be operated on satellites, landers, space probes and other remote systems where conventional IP networking falls short. As part of the team, we investigate how DTN can bring cloud-native technologies, such as Kubernetes, to these environments.

Learn more
Bringing DTN to intermittent IoT networks

The MISSION project aimed to combine state-of-the-art space technology with proven computer science techniques to optimize the reliability and effectiveness of future space missions. As an industry partner in MISSION, we contributed practical work on integrating Delay-Tolerant Networking with LoRaWAN. The project work demonstrated store-and-forward communication with µD3TN and interoperability between µD3TN and DTN7 over LoRa links.

Learn more

The MISSION project was funded by the European Union's Horizon 2020 research and innovation programme.

Scalable DTN architectures across heterogeneous networks

In this project, we explored how principles from the Recursive Internetwork Architecture (RINA) could be applied to DTN. We developed a recursive DTN approach using Bundle-in-Bundle Encapsulation and validated it in a field test combining terrestrial links with ESA's OPS-SAT satellite.

Learn more

Supported by Germany's Federal Ministry of Education and Research.

From underwater sensors to the Internet via satellite

We initiated the COLDSUN project to connect underwater sensor networks to the Internet through satellite links. We developed and field-tested a relay buoy that collects and buffers sensor data until a satellite connection becomes available, using open-source software and commercial off-the-shelf hardware.

Learn more

Supported by the European Space Agency.

Yours to read, run, and build on

µD3TN and picoD3TN are our open-source implementations of Bundle Protocol v7, designed for different platforms and resource constraints.

Space-tested · written in C · Bundle Protocol v6 & v7

µD3TN is our lightweight Bundle Protocol v6 and v7 implementation in C. It integrates into existing systems over standard sockets and is designed for resource-constrained and challenged networks. Maintained since 2014, it is available to use, inspect and adapt as the foundation for your own DTN system.

Space-tested · written in Rust · Bundle Protocol v7

picoD3TN brings Bundle Protocol v7 to highly constrained hardware. Written in Rust and compatible with µD3TN, it can run directly on microcontrollers without an underlying operating system while retaining Rust's memory-safety advantages.

Contact us!
Let's talk about your network.

Branch office
D3TN U.S. Corp.
444 Brickell Avenue
Suite 700
Miami, FL 33131, USA
+1 (305) 645 6828
Map showing D3TN's office locations
Main location
D3TN GmbH
Poststraße 37
01159 Dresden,
Germany
+49 351 42 41 65 21