From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id de7c7996 for ; Sun, 16 Feb 2020 10:52:31 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id B103C9CE2E; Sun, 16 Feb 2020 20:52:29 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id C61429BD03; Sun, 16 Feb 2020 20:51:54 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 5C9269BCE6; Sun, 16 Feb 2020 20:51:52 +1000 (AEST) X-Greylist: delayed 1391 seconds by postgrey-1.36 at minnie.tuhs.org; Sun, 16 Feb 2020 20:51:51 AEST Received: from b-painless.mh.aa.net.uk (b-painless.mh.aa.net.uk [81.187.30.52]) by minnie.tuhs.org (Postfix) with ESMTPS id 7CA349BD03 for ; Sun, 16 Feb 2020 20:51:51 +1000 (AEST) Received: from 132.198.187.81.in-addr.arpa ([81.187.198.132] helo=quintile.net) by b-painless.mh.aa.net.uk with esmtp (Exim 4.92) (envelope-from ) id 1j3HAG-0003IA-JJ for tuhs@minnie.tuhs.org; Sun, 16 Feb 2020 10:28:40 +0000 Received: from [192.168.1.37] ([81.187.198.132]) by quintile.net; Sun Feb 16 10:28:37 GMT 2020 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: Steve Simon Mime-Version: 1.0 (1.0) Date: Sun, 16 Feb 2020 10:28:36 +0000 Message-Id: References: In-Reply-To: To: tuhs@minnie.tuhs.org X-Mailer: iPhone Mail (17D50) Subject: Re: [TUHS] TUHS Digest, Vol 51, Issue 18 X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" maybe if interest, i have a copy of an article by sandy fraser, =E2=80=9Cear= ly experiments with time division networks=E2=80=9D from ieee networks, jan 1= 993, pp12-26. this is a high level paper and describes spider, datakit, incon.=20 it may have little new but i felt it had a lot of good background and a usef= ul references list. i am wary of scanning it as its the ieee... -Steve > On 15 Feb 2020, at 2:00 am, tuhs-request@minnie.tuhs.org wrote: >=20 > =EF=BB=BFSend TUHS mailing list submissions to > tuhs@minnie.tuhs.org >=20 > To subscribe or unsubscribe via the World Wide Web, visit > https://minnie.tuhs.org/cgi-bin/mailman/listinfo/tuhs > or, via email, send a message with subject or body 'help' to > tuhs-request@minnie.tuhs.org >=20 > You can reach the person managing the list at > tuhs-owner@minnie.tuhs.org >=20 > When replying, please edit your Subject line so it is more specific > than "Re: Contents of TUHS digest..." >=20 >=20 > Today's Topics: >=20 > 1. Datakit early end-to-end protocol(s) (Paul Ruizendaal) >=20 >=20 > ---------------------------------------------------------------------- >=20 > Message: 1 > Date: Fri, 14 Feb 2020 17:22:37 +0100 > From: Paul Ruizendaal > To: TUHS main list > Subject: [TUHS] Datakit early end-to-end protocol(s) > Message-ID: <7128AB08-C99E-490E-BD81-7D62503FF676@planet.nl> > Content-Type: text/plain; charset=3Dutf-8 >=20 >=20 > I=E2=80=99m looking for the end-to-end datakit network protocol as it exis= ted in 7th Edition. >=20 > Context is as follows: >=20 > - The Spider network guaranteed reliable, in-order delivery of packets at t= he TIU interface. There does not seem to have been a standard host end-to-en= d protocol, although applications did of course contain sanity checks (see f= or instance the =E2=80=98nfs=E2=80=99 source here: http://chiselapp.com/user= /pnr/repository/Spider/tree?ci=3Dtip) >=20 > - Datakit dropped the reliable delivery part (although it did retain the i= n-order guarantee) and moved this responsibility to the host. It is the (ear= ly) evolution of the related protocol that I=E2=80=99m trying to dig up. >=20 > - 7th Edition appears to have had a (serial line based) Datakit connection= . Datakit drivers are not in the distributed files, but its tty.h file has d= efines for several Datakit related constants. Also, as the first Datakit sw= itches became operational at Murray Hill in =E2=80=9978 or =E2=80=9979, it s= eems a reasonable assumption that the Research code base included drivers & p= rotocols for it around that time. >=20 > - After that the trail continues with the 8th edition which has a stream f= ilter (dkp.c) for the =E2=80=9CNew Datakit Protocol=E2=80=9D: http://chisela= pp.com/user/pnr/repository/v8unix/artifact/01b4f6f05733aba5 This suggests t= hat there was an =E2=80=9COld Datakit Protocol=E2=80=9D as well - if so, thi= s may have been the protocol in use at the time of 7th Edition. >=20 > The =E2=80=9CNew Datakit Protocol=E2=80=9D appears to be (more or less) th= e same as what was later called URP (Universal Receiver Protocol). At the ti= me of Plan9 its IL/IP protocol appears to have been designed as an equivalen= t for URP/Datakit. The early protocols where apparently (co-)designed by Gre= g Chesson and maybe also stood at the base of his later XTP protocol work. >=20 > Any recollections about the early history and evolution of this Datakit pr= otocol are much appreciated. Also, if the source to the 7th Edition Datakit n= etwork stack survived I=E2=80=99d love to hear. >=20 > Paul >=20 >=20 >=20 >=20 >=20 >=20 > ------------------------------ >=20 > Subject: Digest Footer >=20 > _______________________________________________ > TUHS mailing list > TUHS@minnie.tuhs.org > https://minnie.tuhs.org/cgi-bin/mailman/listinfo/tuhs >=20 >=20 > ------------------------------ >=20 > End of TUHS Digest, Vol 51, Issue 18 > ************************************