With TeraStream, Deutsche Telekom builds a drastically simplified IP end to end architecture. As part of TeraStream, network I/O optimized datacenters were tightly integrated with the IP infrastructure – the Infrastructure Cloud. As TeraStream is an IPv6-only network where IPv4 is delivered as a service, produced in the Infrastructure Cloud, the Infrastructure Cloud also needs to support IPv6 natively. This presentation covers DT's early experience out of the TeraStream pilots in Croatia and Germany, as well as an overview on the solution we are currently implementing.