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/rfc208.txt | 171 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 171 insertions(+) create mode 100644 doc/rfc/rfc208.txt (limited to 'doc/rfc/rfc208.txt') diff --git a/doc/rfc/rfc208.txt b/doc/rfc/rfc208.txt new file mode 100644 index 0000000..ea279e7 --- /dev/null +++ b/doc/rfc/rfc208.txt @@ -0,0 +1,171 @@ + + + + + + +Network Working Group A. McKenzie +Request for Comments: 208 Bolt Beranek and Newman +NIC: 7181 9 August 1971 +Categories: B.l, C.2 +Updates: none +Obsoletes: none + + + ADDRESS TABLES + + Attached is a copy of a revision to Appendix A of BBN Report No. + 1822; the revised version of the Appendix is our first attempt to + make the list of sites attached to the ARPA Network prospective + rather than retrospective. We are adopting this approach because of + the large number of sites scheduled for attachment in the near + future, and because many Hosts apparently require a site's address to + be in some local table before their NCPs will permit communication + with the site. Therefore, we urge such Hosts to add the new sites to + their lists of addresses as soon as possible. Also, please note the + address change which will be made at BBN on exactly September first. + + Incidentally, it seems to us that it is irrational for an NCP to + discard otherwise valid messages, simply because the sender's address + doesn't appear in a local table. Similarly, it seems almost as + irrational for an NCP to prevent a local user from trying to + communicate with a remote site, the address of which is known to the + user but not stored in the NCP's tables. + + + + + + + + + + + + + + + + + + + + + + + + +McKenzie [Page 1] + +RFC 208 Address Tables 9 August 1971 + + +Report No. 1822 Bolt Beranek and Newman Inc. + +APPENDIX A + +IMP AND HOST SITE IDENTIFICATION + + Bit 9-16 of the leader of most Host-to-IMP or IMP-to-Host messages + define a network address related to the message (these bits are not + meaningful for message types 1, 2, and 4). In a Host-to-IMP message + the network address identifies a particular Host to which the message + should be delivered. In an IMP-to-Host message the network address + identifies the Host from which the message originated. + + A network address consists of six bits (bits 11-16 of the leader) + which specify an IMP number, preceded by two bits (bits 9-10 of the + leader) which specify the Host number of a particular Host connected + to that IMP. The table below gives the decimal values of IMP number, + Host number, and network address for each Host currently connected to + the ARPA Network or scheduled for connection in the near future. + Scheduled installation dates are also shown for Hosts not currently + connected; these dates, however, are subject to change without + notice. + + IMP SITE HOST NETWORK SCHEDULED + NUMBER NAME NUMBER HOST ADDRESS INSTALLATION + ------ ---- ------ ---- ------- ------------ + 1 UCLA 0 SIGMA-7 1 + 1 IBM 360/91 65 + 2 SRI 0 PDP-10 (NIC) 2 + 1 PDP-10 (Al) 66 + 3 UCSB 0 IBM 360/75 3 + 4 UTAH 0 PDP-lO 4 + 5 BBN 0 DDP-516 5 ) See Note 1 + 1 PDP-10 (A) 69 ) + 2 PDP-1O (B) 133 + + Note 1: Prior to September 1, 1971 the BBN PDP-1O (A) will be Host + number 0 (network address 5) and the BBN DDP-516 will be Host number + 1 (network address 69). The address change is to be made during the + day on 9/1/71. + + + + + + + + + + + +McKenzie [Page 2] + +RFC 208 Address Tables 9 August 1971 + + + IMP SITE HOST NETWORK SCHEDULE +NUMBER NAME NUMBER HOST ADDRESS INSTALLATION +------ ---- ------ ---- ------- ------------ + 6 MIT 0 Honeywell 645 6 + 1 PDP-10 70 + 7 RAND O 360/65 7 + 1 PDP-1O 71 + 8 SDC O IBM 360/75 8 + 9 HARVARD O PDP-1O 9 + 1 PDP-1 73 + 2 PDP-11 137 + 10 LINCOLN O IBM 360/67 10 + 1 TX2 74 + 11 STANFORD O PDP-1O 11 + 12 ILLINOIS O PDP-11 12 + 13 CASE O PDP-1O 13 + 14 CARNEGIE O PDP-1O 14 + 15 PAOLI O B6500 15 + 16 NASA/AMES O IBM 360/67 16 8/3/71 + 2 TIP 144 + 17 MITRE 2 TIP 145 8/31/71 + 18 RADC O H 635/645 18 10/5/71 + 2 TIP 146 + 19 NBS O PDP-11 19 11/2/71 + 20 ETAC 2 TIP 148 11/30/71 + 21 TINKER O 418 III 21 1/4/71 + 22 McCLELLAN O 418 III 22 2/1/72 + 23 USC 0 IBM 360/44 23 2/29/72 + 2 TIP 151 + 24 GWC 2 TIP 152 3/14/72 + 25 NCAR O CDC 7600 25 3/28/72 + 2 TIP 153 + 30 BBN/TIP 2 TIP 158 + + + + + + + + + + + + + + + + + + +McKenzie [Page 3] + -- cgit v1.2.3