[ih] How long did it take?

Brian E Carpenter brian.e.carpenter at gmail.com
Wed Sep 16 17:55:23 PDT 2026


This is somewhat related to John's question, but refers to the country to the north of Lake America. Peter Cashin took packet switching from NPL to Canada in 1974..

B. E. Carpenter, Peter Cashin, An Overseas Experience with Hypertext and Packet Switching,
CDMTCS Research Report CDMTCS-577, University of Auckland (February 2024).
This is an "oral history" interview conducted by email. See pages 7 and 8.

https://www.cs.auckland.ac.nz/research/groups/CDMTCS/researchreports/download.php?selected-id=884

Regards/Ngā mihi
    Brian Carpenter

On 17-Sep-26 11:07, John Day via Internet-history wrote:
> In the 60s, Baran backed out of an offer from AT&T to build a packet switched network because he sensed wisely they didn’t believe in it and would not put the effort into to make it real.
> 
> We also all know the story from the ARPANET demo at ICCC72 when Bob Metcalfe was demoing the TIP to several AT&T attendees. The TIP crashed and re-booted from its neighbors. Bob thought this was a great aspect of the system. The AT&T guys thought it showed the ARPANET was a joke and not serious.
> 
> So when did AT&T start to take packet switching seriously?
> 
> Take care,
> John


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