Interplanetary Internet (IPN)

Marc Petit-Huguenin writes: "Vinton G. Cerf and others just released an Internet Draft about the Architectural Definition of the Interplanetary Internet (IPN). The first section "Desiderata of Interplanetary Internetworking" is a wonderful text." This is beautiful, both the document itself and the work put into something which, at the present time, has no practical use whatsoever. Bravo... I hope I live to see this deployed.

Comments

Actually this is used today

[jandrese]

This is the same technology (SCPS gateways for instance) that is used to talk to some LEO satellites and the Space Shuttle, where you only have window of a few minutes to transmit whatever data you have.

Some of the technologies used in this are also applicable to any low bandwidth high latency connection. IP header compression is a prime example of this. Most people on Slashdot probably havn't considered the consequences of using IP over a link with a bandwidth measured in the low double digit bytes per second where return traffic may take several minutes to reach you, but people working with secure communications or low power long distance wireless links sure have.

One final thing I'm sure will interest many Slashdotters, the SCPS gateway runs on FreeBSD (and many other platforms as well, but it was developed under FreeBSD).

Down that path lies madness. On the other hand, the road to hell is paved with melting snowballs.

Literature and Common Sense in the same doc!

[DG]

From the RFC:

Desiderata of Interplanetary Internetworking

Go thoughtfully in the knowledge that all interplanetary communication derives from the modulation of radiated energy, and sometimes a planet will be between the source and the destination. Therefore rely not on end-to-end connectivity at any time, for the universe does not work that way.

Neither rely on ample bandwidth, for power is scarce out there and the bit error rates are high. Know too that signal strength drops off by the square of the distance, and there is a lot of distance.

Consider the preciousness of interplanetary communication links, and restrict access to them with all your heart. Protect also the confidentiality of application data or risk losing your customers.

Remember always that launch mass costs money. Think not, then, that you may require all the universe to adopt at once the newest technologies. Be backward compatible.

Never confuse patience with inaction. By waiting for acknowledgement to one message before sending the next, you squander tracking pass time that will never come to you again in this life. Send as much as you can, as early as you can, and meanwhile confidently await responses for as long as they may take to find their way to you.

Therefore be at peace with physics, and expect not to manage the network in closed control loops -- neither in the limiting of congestion nor in the negotiation of connection parameters nor even in on-demand access to transmission bands. Each node must make its own operating choices in its own understanding, for all the others are too far away to ask. Truly the solar system is a large place and each one of us is on his or her own. Deal with it.

That's beautiful... it conveys all the important information, but yet still manages to be literate, and even a little bit inspiring.

Nice to see there are still visionaries in science.

Re:Literature and Common Sense in the same doc!

[selectspec]

To bad the satellites dont run in COBOL because you could just compile this excerpt.

IPN huh?

[Luxury P. Yacht]

Does this mean I will one day be able to finger Uranus? Doesn't sound too appealing...

Re:Slashdottet?

[HiQ]

What's nicer is that maybe in the future we will be able to slashdot whole planets :-)