Summary 281 · Thus, Planetlab experiments are not reproducible, but show more realistic traffic behavior on links. Global Environment for Network Innovations (GENI): GENI is an initiative to create a testbed that supports network experimentation at very large scales [132]. The architecture of GENI is based on defining a single control infrastruc- ture that allows the federation of existing testbeds (e.g., Emulab, Planetlab) as well as new ones. GENI is in the process of being developed. These testbeds promise to provide the platforms to test the technology developed for next-generation networks. Commercial incentives In addition to technical concerns about correct and efficient operation of the net- work, it is important to consider the commercial aspects of network deployment. Deploying new infrastructure is a costly proposition and there need to be clear incentives for the parties involved. At the highest level, the following opportunities offer services and functionalities to other parties (and to be compensated for the investments necessary to provide them):