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+Networking Group A. McKenzie
+Request for Comments: 240 BBN
+NIC #7665 30 September 1971
+Categories: F, G.3 Rand 50ctu
+Updates: none
+Obsoletes: RFC 235
+
+
+ SITE STATUS
+
+ Due to extensive typographic errors in RFC #235, I have
+decided to reissue the first of our experimental site status reports.
+
+ In compiling RFC #235, I followed the principle that
+timeliness was somewhat more important than extremely careful editing;
+this seemed to me to be in keeping with the original RFC philosophy. I
+am sorry for any embarrassment this may have caused to anyone associated
+with the Network, and accept full responsibility for the content of RFC
+#235. I will try to do a better job in the future.
+
+
+Alex McKenzie
+
+
+ SITE STATUS
+
+
+ Beginning with this RFC, BBN will report on the status of
+most Network Hosts approximately once every two weeks. The information
+for these reports will be gained from talking to people at each site,
+and from experimental "data". These data will be the results of daily
+attempts to log into each of the Hosts which might be accessible to a
+Network user; the attempts will have been made from the BBN prototype
+Terminal IMP at a random time each weekday.
+
+ Several Hosts are currently excluded from the daily testing.
+These Hosts fall into two categories:
+
+ 1) Hosts which are note expected to be functioning on the
+ Network as servers (available for use from other sites) for at
+ least a month. Included here are:
+
+ Network Site Computer
+ Address
+
+ 71 Rand PDP-10
+ 74 Lincoln TX2
+ 11 Stanford PDP-10
+
+
+
+ [Page 1]
+
+RFC #240
+
+
+ 13 Case PDP-10
+ 14 Carnegie PDP-10
+ 15 Paoli B6500
+
+ 2) Hosts which are currently intended to be users only.
+ Included here are the Terminal IMPs presently in the Network
+ (AMES, MITRE, and BBN[1]). This category also includes the
+ Network Control Center computer (Network Address 5) which is
+ use solely for gathering statistics from the Network.
+ Finally, included among these Hosts are the following:
+
+ Network Site Computer
+ Address
+
+ 7 Rand IBM-360/65
+ 73 Harvard PDP-1
+ 12 Illinois PDP-11
+
+ The tables on the next two pages condense the information on
+Host status for September 13 through September 24.
+
+ PREDICTIONS
+NETWORK SITE COMPUTER STATUS or PREDICTION OBTAINED
+ADDRESS FROM
+
+ 1 UCLA SIGMA - 7 Server Jon Postel
+65 UCLA IBM-360/91 Remote Job Service now,
+ Time-sharing in January Steve Wolf
+ 2 SRI(NIC) PDP-10 October 11 John Melvin
+66 SRI(AI) PDP-10 November Len Chaiten
+ 3 UCSB IBM-360-75 Server Jim White
+ 4 UTAH PDP-10 "Soon" Barry Wessler
+ 5 BBN DDP-516 NCC Alex McKenzie
+69 BBN PDP-10 Server Dan Murphy
+ 6 MIT(Multics) H-645 "Soon" Mike Padlipsky
+70 MIT(DM) PDP-10 Server Bob Bressler
+ 7 RAND IBM 360/65 User only Eric Harslem
+71 RAND PDP-10 January Eric Harslem
+ 8 SDC IBM-360/67 October 11 Bob Long
+ 9 HARVARD PDP-10 "Soon" Bob Sundberg
+73 HARVARD PDP-1 User only Bob Sundberg
+10 LINCOLN IBM-360/67 "Soon" Joel Winnet
+74 LINCOLN TX2 Uncertain Tom Barkalow
+11 STANFORD PDP-10 November Andy Moorer
+12 ILLINOIS PDP-11 User only John Cravits
+13 CASE PDP-10 December 15 Charles Rose
+14 CARNEGIE PDP-10 January Hal VanZoeren
+15 PAOLI B6500 Uncertain John Cravits
+
+
+
+ [Page 2]
+
+RFC #240
+
+
+16 AMES TIP Installed
+17 MITRE TIP Installed
+30 BBN TIP Prototype
+
+
+NETWORK SITE COMPUTER DATE AND TIME (P.M.)
+ADDRESS 9/13 9/14 9/15 9/16 9/17 9/20
+ 4:30 3:30 6:00 10:30 1:30 12:30
+ 1 UCLA SIGMA-7 O O O D D D
+65[2] UCLA IBM 360/91 O O O O O D
+ 2 SRI(NIC) PDP-10 D D D D D D
+66 SRI(AI) PDP-10 D D D D D D
+ 3 UCSB IBM-360/75 O O O O O O
+ 4 UTAH PDP-10 D D D D D D
+69 BBN PDP-10 O 1/2 0 O T 1/2 O O
+ 6 MIT(Multics) H-645 R R R D 1/2 O D
+70 MIT(DM) PDP-10 T T T O O T
+ 8 SDC IBM-360/67 D D D D T D
+ 9 HARVARD PDP-10 T D T T T T
+10 LINCOLN IBM-360/67 D 1/2 0 1/2 0 D T D
+
+
+NETWORK SITE COMPUTER DATE AND TIME (P.M.)
+ADDRESS 9/21 9/22 9/23 9/24
+ 4:30 3:30 2:00 5:00
+
+ 1 UCLA SIGMA-7 O D T O
+65[2] UCLA IBM 360/91 O O O O
+ 2 SRI(NIC) PDP-10 D O D D
+66 SRI(AI) PDP-10 D D D D
+ 3 UCSB IBM-360/75 O O O O
+ 4 UTAH PDP-10 D D D D
+69 BBN PDP-10 O 1/2 O O O
+ 6 MIT(Multics) H-645 1/2 O T T R
+70 MIT(DM) PDP-10 1/2 O O D D
+ 8 SDC IBM-360/67 D D D D
+ 9 HARVARD PDP-10 D T D D
+10 LINCOLN IBM-360/67 D D 1/2 0 D
+
+
+
+
+
+
+
+
+
+
+
+
+
+ [Page 3]
+
+RFC #240
+
+
+where
+ D = Dead. (Destination Host either dead orinaccessible (due to
+ network partitioning or local IMP failure) from the BBN
+ Terminal IMP).
+ R = Refused. (Destination Host returned a CLS to the initial RFC.) T
+ = Timed Out. (Destination Host did not respond in any way to the
+ initial RFC, although not dead.)
+ 1/2 0 = 1/2 Open. (Destination Host opened a connection but then
+ either immediately close it, or did not respond any
+ further.)
+ O = Open. (Destination Host opened a connection and was
+ accessible to users.)
+
+Endnotes
+
+ [1] The BBN Terminal IMP (Network Address 158) is a prototype, and as
+ such is frequently not connected to the Network, but being used to
+ refine and debug the Terminal IMP programs.
+
+ [2] The UCLA IBM-360 is at the moment only able to handle Remote Job
+ Service. BBN is not equipped to test this, but is assuming that
+ receipt of their canned message indicates that RJS is also
+ functioning.
+
+
+
+ [ This RFC was put into machine readable form for entry ]
+ [ into the online RFC archives by Roy Zimmer 9/97 ]
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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+
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+
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+
+
+
+
+ [Page 4]
+