LunaNet is a NASA project and proposed data network aiming to provide a "Lunar Internet" for cis-lunar spacecraft and installations.[1]
It will be able to store-and-forward data to provide a Delay/Disruption Tolerant Network (DTN). The objective is to avoid needing to preschedule data communications back to Earth.[1]
LunaNet will also offer navigation services, eg. for orbit determination, and navigation on the lunar surface.[1]
Draft interoperability specifications have been issued.[1]