A Demonstration Scenario for the NorNet Core Multi-Homed Network Testbed

There is extensive on-going research taking place with the goal of implementing transport layer protocols that are able to utilize multi-homing on machines (connection to multiple ISPs). Multi-homing has potential to improve resilience and increase total goodput compared to using a single connection. This would e.g. benefit the trend of more and more services being moved online and into the cloud. The NorNet Core multi-homed network testbed aims to facilitate this research by offering programmable virtual machines located at multiple different sites across the world, accessible for researchers. The aim of this project is the design and implementation of a demonstration platform for NorNet Core that enables the testbed to be illustratively demonstrated to potential new users. This is done by offering users interactive experiments, and geographical visualization of various communication scenarios between nodes in the NorNet Core network in real time. The demonstration platform puts emphasis on demonstrating the unique aspects of NorNet Core compared to other networking testbeds; namely the multi-homed nature and IPv6 support for all of the nodes. This thesis discusses the technical aspects of designing and implementing the platform, as well as demonstrating the finished result with various demonstration scenarios. The Qt programming framework was chosen as the primary development framework for this application

Denmark as the Energy Island Pioneer

Rumor has it that all technologies needed to build energy islands are ready. Wind turbines are spinning in many large offshore parks, while combinations of sand and concrete have given birth to several entirely new islands. However, not all rumors are true. Not only has the Danish parliament mandated the largest ever infrastructure project in the history of our country. The first Danish artificial island built for energy production will also become the world’s largest renewable energy project. On top of the technical and logistical challenges associated with building something of an unprecedented scale and nature come new concerns. The energy islands are an extreme version of the power system we know today, and therefore represent a Mars mission for the energy system. More than once have large infrastructure projects been plagued by delays and significant additional costs. Often such problems have been rooted in overly optimistic planning, limited knowledge regarding the complexity and interdependencies involved, and not giving enough attention to the development phase relative to the construction phase. For many reasons, it is highly desirable for the energy island projects to perform well. Therefore, we have teamed up to map the key challenges and suggest R&D initiatives to address them. Importantly, these initiatives are not intended as an inserted step before construction. Given the urgency in green transition and ending the reliance on fossil fuels, research and construction must be conducted in parallel. A solid foundation for energy islands On the following pages we invite you to delve into the complexity of constructing and operating offshore hubs for renewable energy. As you will hopefully agree, we are by no means saying that it cannot be done. It can. But only if decisions are based on a solid foundation of knowledge