[ih] Host-Host vs NCP (Was Re: Confusion in the RFCs)

[John Day]

So, you are saying that NCP didn’t come into use until 74-76? First TCP spec I saw was in mid-75.

I can’t cite anything off the top of my head but I think it was in use well before that.
Someone else will remember.
John

> On Sep 5, 2025, at 10:40, Noel Chiappa via Internet-history <internet-history at elists.isoc.org> wrote:
> 
>> From: Steve Crocker
> 
>> Somewhere along the way, people repurposed "NCP" to mean Network
>> Control *Protocol*
> 
> When there was only one protocol stack running on the ARPANET (HHP et al), it
> didn't need a name. When the second one (TCP/IP) appeared, we needed names
> for each, and we started using 'NCP' as the name for the first one ('NCP' was
> sort of in use already to refer to that collection of things, as the name for
> the software that implemented it), and backronymed it to the more
> sensible/appropriate 'Network Control Protocol'.
> 
> Fun fact: the CHAOS people at MIT retained, for some years, 'NCP', and the
> old expansion of it, as the name for the CHAOS protocol implementation; for
> example, see:
> 
>  https://github.com/bill790/chaos/blob/master/ncp.c
> 
> 	Noel
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