Signal transport and networks for the SKA

The signal transport and networks of the SKA are the backbone of the telescope, they interface with almost every aspect of the system. They provide services, fundamental to the operation of the SKA as an aperture synthesis interferometer, such as timing and synchronization and the transmission of data from receptors to a correlator. Signal transport and networks provide communication links both internally to the telescope and externally to the SKA regional centers around the world. This paper will describe the requirements placed on these networks by the telescope and the technical progress in developing solutions to deliver this required functionality.