[ih] X.25

[John Levine]

It appears that Dave Crocker via Internet-history <dcrocker at bbiw.net> said:
>On 10/1/2025 2:15 PM, Lyndon Nerenberg (VE7TFX/VE6BBM) via 
>Internet-history wrote:
>> I think X.25 got more of a workout as a transport layer for UUCP
>> (f protocol).  UUCP over X.25 hauled a lot of email and Usenet
>> traffic in the 1980s.
>
>I don't recall any of the details about this for UUCP.

I was a long time uucp user and I do not ever recall running
into anyone who used it over X.25.

This web page says that the widely used Taylor uucp
had an 'x' protocol for X.25 but also says it doesn't work:

https://www.math.utah.edu/docs/info/uucp_5.html#SEC57

We all used Telebit modems that had microcode that spoofed the normal
'g' dialup protocol and used a faster proprietary scheme between the
modems.

Later it was possible to run uucp over TCP, skipping uucp's own error
correction and flow control, but there wasn't much point. The main
applications for uucp were mail and netnews, and if you had a TCP
connection you might as well use SMTP and NNTP.

The Postfix manual still has uucp setup instructions:

https://www.postfix.org/UUCP_README.html

R's,
John