A successful collaboration of research networks (such as National Research and Education Networks and GÉANT) is clearly visible in Europe for number of years now. From providing basic IP connectivity to advanced services these networks enabled efficient cooperation in many research areas. GÉANT network and Cross Border Fibre owned by NRENs allow performing such cooperation on a pan-European and even global scale. Creation of multi junction facilities - where several networks are interconnecting - may deliver new possibilities for cooperation and provide many benefits in terms of overall cost of network infrastructure and service portfolio. This presentation will discuss the details and share experiences gained during establishment of the federated PoP in Hamburg.