Network Working Group N. Neigus
Request for Comment: 597
12 December 1973
Attached are the latest network maps -- geographic and logical -- and
a list of Hosts connected to the ARPANET.
The geographic map shows all IMPs and TIPs currently installed in the
The logical map diagrams the current (as of Dec. 10, 1973
) status of
all computers on the net, with the exception of MIT-MULTICS which is
shown in the advanced state of being attached to IMP #44 rather than
IMP #5. (My apologies for not reprinting the map.) Hosts with
interfaces to the subnet are shown with intersected ovals; the small
"v" represents a Very Distant Host (VDH) interface to the IMP; IMPs
are the solid black circles and TIPs the circles with "T" enclosed.
The two jagged lines represent satellite links.
Note: The names listed on this map are unofficial IMP names, NOT
official Host names.
The list of Hosts includes current sites as well as those projected
to come onto the net within the next two months. At the end is an
incomplete list of installations to be connected further in the
future. Dates for connection have been included only for the next
few months to prevent gross inaccuracy.
The Host's network address is given in octal and decimal.
Interfaces from the subnet to the particular computer are listed
in parentheses and may be ignored.
A site is considered a Server or User of the network based on
self-proclamation. Limited Server implies the site performs
service functions but for a restricted group of users dedicated
Servers implies the type of service is restricted, not the user
group. In all cases normal site access restrictions are observed.
Included in the status column is any special operating system
available for that Host, that is not supplied by the computer
This RFC contains official Host names as of December, 1973
conventions and an official Hostname list, which will be maintained
at the NIC by Jake Feinler (FEINLER@NIC), will be published in the
ARPANEWS. A version of this list will be available online at the
NIC, the location to be announced with the official Hostname list.
(Other sites are encouraged to make copies of this list available on
their own systems.) In addition, a printed version will be issued
periodically as part of the Resource Notebook
Host Address Hostname (Interface)-> Status/
(8) (10) Computer System
1 001 UCLA-NMC Sigma 7 Server till 12/31/73
PDP-11/45 User 1/1/74
101 65 UCLA-CCn IBM 360/91 Server
201 129 UCLA-CCBS (PDP-15)-> limited Server
002 2 SRI-ARC PDP-10 dedicated Server
102 66 SRI-AI (PDP-15)-> limited Server
202 130 SU-DSL (VDH)-> User 1/74
003 3 UCSB-MOD75 IBM 360/75 Server
103 67 SCRL (VDH)-> User
004 4 UTAH-10 PDP-10 limited Server
204 132 UTAH-TIP TIP
005 5 BBN-11X PDP-11 Peripheral processor
for #69, 12/73
105 69 BBN-TENEX PDP-10 Server
205 133 BBN-TENEXB PDP-10 limited Server
251 169 NORSAR-TIP TIP
052 42 UKICS-360 (PDP-9)-> limited Server
252 170 UKICS-TIP TIP
053 43 OFFICE-1 PDP-10 dedicated Server
253 171 TYMSHARE-TIP TIP
054 44 MIT-MULTICS H-6180 Server 12/17/73
256 174 RUTGERS-TIP TIP
257 175 WPAFB-TIP TIP
The following hosts are scheduled to come onto the ARPANET in the
Spring of 1974 or later. Since their schedule was less firm they were
not listed above.
110 72 SDC-CC IBM 370/158
216 142 CMU-11 C.mmp
316 206 CMU-CC (PDP-11)->
IBM 360/67 & UNIVAC 1108
024 20 ETAC PDP-11/45
033 27 BELVOIR (PDP-11)-> 041
33 FNWC (CDC 3200)->
042 34 LBL (CDC 6200)->
055 45 SCI SCL-85
260 176 AFWL-TIP TIP
(Maps omitted: ARPA Network, Geographic Map, November 1973; and ARPA
Network, Logical Map, December 1973.)