From 4bfd864f10b68b71482b35c818559068ef8d5797 Mon Sep 17 00:00:00 2001 From: Thomas Voss Date: Wed, 27 Nov 2024 20:54:24 +0100 Subject: doc: Add RFC documents --- doc/rfc/rfc343.txt | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 doc/rfc/rfc343.txt (limited to 'doc/rfc/rfc343.txt') diff --git a/doc/rfc/rfc343.txt b/doc/rfc/rfc343.txt new file mode 100644 index 0000000..016b0da --- /dev/null +++ b/doc/rfc/rfc343.txt @@ -0,0 +1,115 @@ + + + + + + +Network Working Group A. McKenzie +Request for Comments: 343 BBN-NET +NIC #10422 19 May 1972 +Category: B.1 +Obsoletes: RFC #331 + + + IMP System Change Notification + + As most of you probably know, our attempt to release IMPSYS 2600 on + May 15 (as discussed in RFC #331) was unsuccessful. Briefly, the + primary reasons for failure (all operational rather than programming + bugs) were: + + 1) The network appears to have grown too large for us to + successfully coordinate operator intervention at all sites. + + 2) An unanticipated aspect of the gradual release of the new + system was the "poisoning" of IMP's running the new system by + adjacent IMP's running the old system, and vice versa. Working + around this problem made the dissemination of the new system + take much longer than anticipated. + + We believe we see solutions to both of these problems and are now + ready to schedule the next attempt(s) to release IMPSYS 2600. We + hereby request all sites to cooperate with this effort in the + following ways. + +I. All sites with Model 516 IMP's have been contacted by telephone and + asked to set the switches on their IMP's as follows: + + HALT INH - off + W.D.T. - off + AUTO RSTRT - on + MEMORY PRTCT - off + + Please be sure that your switches remain set at these positions + until further notice. + +II. No site should attempt to use the IMP's "Trace" routine during the + day(s) of the attempted system release. + +III. Terminal IMP's may be turned off for significant portions of the + day(s) of the attempted system release. Please be patient with any + inconvenience which this causes. + + + + + + +McKenzie [Page 1] + +RFC 343 IMP System Change Notification May 1972 + + +IV. We hope to accomplish release of IMPSYS 2600 on the next attempt. + Nevertheless, we are not omniscient and may again be thwarted by + difficulties. Accordingly, we are scheduling the next attempt for + Wednesday, May 31, and subsequently every Tuesday (June 6, 13, 20, + ...) until the release is successfully accomplished. We will + arrange the release process so that site operator coverage is not + required; nevertheless we hope that the normal site operator + coverage is available in case unanticipated problems develop. + Release of the new system will begin early in the day + (approximately 7 a.m. EDT). We again suggest that sites do not + schedule production work over the network during the release + attempt(s). We will notify each site by phone after the release + has been successfully completed. + + Finally, we apologize in advance for any inconvenience caused by + the contortions required to release this new system, and thank all + of the site operations' staffs who worked with us on May 15 for + their cooperation. + + AAM/jm + + + + + + + + + + + + + [ This RFC was put into machine readable form for entry ] + [ into the online RFC archives by Ronald de Leeuw 1/99 ] + + + + + + + + + + + + + + + + + +McKenzie [Page 2] + -- cgit v1.2.3