[ih] IEN's as txt

Paul Ruizendaal pnr at planet.nl
Thu Feb 9 16:02:17 PST 2017


I did push IEN81 through an OCR tool with much the same result.
Many thanks for the offer though!

I won't have time for the manual patch up job until later in the



My underlying motive for this is to understand the changes to
TCP (and IP/ICMP/UDP) in the 1978-1981 time frame, and diff's
of the IEN's and RFC's would help. Perhaps this analysis has
already been done?

One thing that surprised me is that the closing mechanics in the
TCP state diagram kept changing until very late. Perhaps it
was just a matter of ever more precise specification, but if it
was conceptual change it would seem odd that it did not show up
earlier in the testing process and 'bake offs'.

Same goes for ICMP: it was a late arrival and the rationale for
abandoning the earlier approach is not entirely clear.


On 10 Feb 2017, at 0:36 , Bob Hinden wrote:

> Paul,
> I did an OCR of IEN55 in Adobe and saved the text.  It’s not pretty, and would require a lot of editing to be useful.
> Let me know if you would like me to send it to you.
> Bob
>> On Feb 9, 2017, at 1:56 PM, Paul Ruizendaal <pnr at planet.nl> wrote:
>> Dear all,
>> I'm looking for IEN81 and IEN55 as text files. It seems that they are only available as PDF scans.
>> Does anyone know where to find those IEN's as .txt files? Or is OCR'ing my only route?
>> Paul
>> _______
>> internet-history mailing list
>> internet-history at postel.org
>> http://mailman.postel.org/mailman/listinfo/internet-history
>> Contact list-owner at postel.org for assistance.

More information about the Internet-history mailing list