On Sat, Jun 25, 2022 at 10:20 PM Noel Chiappa <jnc@mercury.lcs.mit.edu>
wrote:


> it had things called 'flows' which were half way between pure
> datagrams (i.e. no setup - you just stick the right destination address in
> the
> header and send it off) and VCs (read the RFCs if you want to kow why),
>

In that connection I have always admired Padlipsky's RFC 962, which
exploits the existing TCP architecture to do just this.  So simple, so
easy, so Unixy.