[ih] Flow Control in IP

[John Day]

Ahh, later than I thought.

But that was what I remembered. Type 3 messages were introduced after exposure to CYCLADES and datagrams in 1972.

As I said, in my long post yesterday. The CYCLADES transport protocol already supported the UDP-like protocol. But Type 3 was necessary to have something like a datagram in the ARPANET.

Thanks,
John

> On Apr 30, 2024, at 18:02, Greg Skinner <gregskinner0 at icloud.com> wrote:
> 
> On Apr 30, 2024, at 10:45 AM, John Day via Internet-history <internet-history at elists.isoc.org> wrote:
>> Yes, those were Type 3 messages. When were they added? Was it around 1973. There were previous discussions on this list about how tightly controlled there use was.
> 
> Around 1975, according to this thread:
> 
> https://elists.isoc.org/pipermail/internet-history/2009-November/001056.html
> —gregbo
> 
>