The BBC is building a new broadcast centre in Cardiff, Wales, which will be its first to adopt SMPTE2110 for core routing. As the detailed technical design progresses, a number of challenges have had to be resolved, in particular with regards to interoperability, PTP timing and audio. Mark’s presentation gave an overview of the Live IP design for the project and how we have resolved a series of problems of integrating large-scale audio over IP where differences in thinking between TV and Radio manufacturers means that interoperability is not straightforward.