•There
is a working prototype: the CCSDS
File Delivery
Protocol (CFDP).
–Architecturally
very similar to IPN.
–International
standard, four experimental implementations.
–Baselined
for Deep Impact mission, potentially others.
•But
CFDP was designed to support individual space flight missions, not to serve as
the infrastructure for a permanent, general-purpose network.
–Addressing
scheme is simple but limited.
–Application,
transport, network, and reliable link layers are combined into a
single protocol, which only does file transfer.