[en] The Internet has become an essential communication medium upon which billions of people rely every day.
However, necessary evolution of the Internet has been severely
limited by reliability constrains and social-economic factors.
Experts fear that current growth rates will threaten the future of
the Internet as a whole, despite the fact that new core technologies
already exist.
Network virtualization presents a promising approach to
overcome ossification and facilitate service deployment for a
future Internet. Exploring this approach, we present a prototype
implementation which realizes a subset of the 4WARD virtual
network (VNet) architecture, allowing multiple VNets to coexist
on top of a shared physical infrastructure. We discuss the
functionality of our prototype and demonstrate experimental
results to assess its performance.