Re: Did Internet Founders Actually Anticipate Paid, Prioritized Traffic?

[Michael StJohns <[e-mail]>]

Heh...

The TOS field was designed to mimic the DOD's message preemption scheme - lower priority messages were only sent if there were no higher priority messages waiting (a message in this case being more like an email than a packet).  Routine, Priority, Operational Immediate, Flash and Flash Override.  Flash Override messages ALWAYS won.  

In 1988, the DDN Program Manager directed the DDN PMO staff to come up with a way of doing usage-based billing for the MILNET.

Neither of these schemes ever saw real-world implementation/use as far as I know.

Mike



At 04:03 PM 9/13/2010, Noel Chiappa wrote:
>    > From: todd glassey <[e-mail]>
>
>    > Why not simply ask Len Klienrock the answer to this question.
>
>Umm, OK idea, wrong person: Len wasn't around the early Internet development.
>
>I actually vaguely recall discussions about the TOS field (including how many
>bits to give to each sub-field), but I can't recall very much of the content
>of the discussions. If anyone cares, some of the IENs which document the early
>meetings might say more.
>
>Frankly, I doubt we understood the issues that well back then. Remember, this
>was the same time period when we put in the 'Source Quench' ICMP message...
>
>        Noel
>_______________________________________________
>Ietf mailing list
>[e-mail]
>https://www.ietf.org/mailman/listinfo/ietf