A
single lander with an IPN gateway to a (real or virtual) internal network
Small
number of cooperating robots on planetary surface (e.g. Single lander, single
rover)
Orbiter-to-surface
communication and coordination
(e.g. sample return recovery)
Multiple
beyond-line-of-sight missions connected by low-orbit communication satellites
Planet-stationary
satellites for relay and gateway functions
Spacecraft on-board LANs