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+Network Working Group Ellen Westheimer
+Request for Comments: #287 BBN
+NIC: #8273 22 December 1971
+Categories: F, G.3
+Updates: RFC #267
+Obsoletes: None
+
+ Status of Network Hosts
+
+ This RFC reports on the status of most Network Hosts from
+December 6 to December 18. Due to hardware debugging, the BBN
+prototype Terminal IMP (Network Address 158) was unavailable for most
+of the two weeks from November 22 to December 6. There was, therefore,
+no Host status reports for that period.
+
+ Several Hosts are currently excluded from the daily testing.
+These Hosts fall into two categories:
+
+ 1) Hosts which are not expected to be functioning on
+ the Network as servers (available for use from
+ other sites) on a regular basis for at least two
+ weeks. Included here are:
+
+ Network
+ Address Site Computer
+ ------- ---- --------
+
+ 133 BBN PDP-10 (B)
+ 71 Rand PDP-10
+ 13 Case PDP-10
+ 15 Ames/(Paoli) ILLIAC/(B6500)
+ 16 Ames IBM-360/67
+
+ 2) Hosts which are currently intended to be users only.
+ Included here are the Terminal IMPs, which are
+ presently in the Network (AMES, MITRE, NBS and BBN*).
+ This category also includes the Network Control Center
+ Computer (Network Address 5) which is used solely for
+ gathering statistics from the Network. Finally,
+ included among these Hosts are the following:
+
+
+
+
+
+
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+
+
+ [Page 1]
+
+ Network
+ Address Site Computer
+ ------- ---- --------
+
+ 7 Rand IBM-360/65
+ 73 Harvard PDP-1
+ 12 Illinois PDP-11
+ 19 NBS PDP-11
+
+ The NBS Terminal IMP (Network Address 147) was installed in
+Washington at the beginning of December.
+
+ The tables on the next two pages summarize the Host status for this
+period.
+
+----------------
+* 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.
+
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+ [Page 2]
+
+NETWORK
+ADDRESS SITE COMPUTER DAY, DATE AND TIME (EASTERN)
+------- ---- -------- ----------------------------
+ M Tu W Th F
+ 12/6 12/7 12/8 12/9 12/10
+ 1300 1700 1300 1300 1630
+
+ 1 UCLA SIGMA-7 D O O H T
+
+ *65 UCLA IBM-360/91 H H D H H
+
+ 2 SRI (NIC) PDP-10 D T D D D
+
+ 66 SRI (AI) PDP-10 D D D D D
+
+ 3 UCSB IBM-360/75 O D O R D
+
+ 4 UTAH PDP-10 T D D D T
+
+ 69 BBN PDP-10 D D D D T
+
+ 6 MIT (Multics) H-645 O O O T O
+
+ 70 MIT (DM) PDP-10 O O D D O
+
+ 8 SDC IBM-360/67 #D #D #D #D #D
+
+ 9 HARVARD PDP-10 D T D O D
+
+ 10 LINCOLN LAB IBM-360/67 D D D D H
+
+ 74 LINCOLN LAB TX2 D D D D D
+
+ 11 STANFORD PDP-10 D D D D D
+
+ 14 CARNAGIE PDP-10 D D O D D
+
+where
+D = Dead (Destination Host either dead or inaccessible [due to network
+ partitioning or local IMP failure] from the BBN Terminal IMP.)
+H = 1/2 Open (Destination Host opened a connection but then either
+ immediately closed it, or did not respond any further.)
+O = Open (Destination Host opened a connection and was accessible to
+ users.)
+R = Refused (Destination Host returned a CLS to the initial RFC.)
+T = Timed out (Destination Host did not complete the ICP and open a
+ connection within 60 seconds.)
+
+
+
+
+ [Page 3]
+
+NETWORK
+ADDRESS SITE COMPUTER DAY, DATE AND TIME (EASTERN)
+------- ---- -------- ----------------------------
+ M Tu W Th F
+ 12/13 12/14 12/15 12/16 12/17
+ 1300 1700 1700 1600 1400
+ 1000 1400 1400 1300 1100
+
+ 1 UCLA SIGMA-7 D #D D O O
+
+ *65 UCLA IBM-360/91 O #D D O O
+
+ 2 SRI (NIC) PDP-10 D D D T O
+
+ 66 SRI (AI) PDP-10 D D D D D
+
+ 3 UCSB IBM-360/75 T O D O D
+
+ 4 UTAH PDP-10 D D D D D
+
+ 69 BBN PDP-10 T H H O T
+
+ 6 MIT (Multics) H-645 O H O D D
+
+ 70 MIT (DM) PDP-10 D O D O O
+
+ 8 SDC IBM-360/67 #D #D #D #D #D
+
+ 9 HARVARD PDP-10 O D O D T
+
+ 10 LINCOLN LAB IBM-360/67 H D H H H
+
+ 74 LINCOLN LAB TX2 D D D H D
+
+ 11 STANFORD PDP-10 D D D D D
+
+ 14 CARNAGIE PDP-10 D D D D D
+
+*The only service currently offered by the UCLA IBM-360/91 is a Network
+Job Service (NETRJS); however, the BBN Terminal IMP is not equipped to
+test NETJRS. We are assuming that initial connection to the NETRJS
+logger indicates that NETJRS is also functioning.
+
+# These sites advertise that they may not have their systems available
+at these times.
+
+
+
+
+
+
+ [Page 4]
+
+ "STATUS OR
+NETWORK PREDICTIONS"
+ADDRESS SITE COMPUTER STATUS OR PREDICTION OBTAINED FROM
+------- ---- -------- -------------------- -------------
+
+ 1 UCLA SIGMA-7 Server Jon Postel
+ 65 UCLA IBM-360/91 Remote Job Service
+ now, Telnet in April Bob Braden
+ 2 SRI (NIC) PDP-10 Server John Melvin
+ 66 SRI (AI) PDP-10 "Soon" Len Chaiten
+ 3 UCSB IBM-360/75 Server Jim White
+ 4 UTAH PDP-10 "Soon" Barry Wessler
+ *5 BBN (NCC) DDP-516 Never Alex McKenzie
+ 69 BBN (TENEX) PDP-10 Server Dan Murphy
+*133 BBN (TENEX-B) PDP-10 Server (Experimental) Dan Murphy
+ 6 MIT (Multics) H-645 Server Mike Padlipsky
+ 70 MIT (DM) PDP-10 Server Bob Bressler
+ *7 RAND IBM-360/65 User only Eric Harslem
+ *71 RAND PDP-10 January '72 Eric Harslem
+ 8 SDC IBM-360/67 Server Bob Long
+ 9 HARVARD PDP-10 Server Bob Sundberg
+ *73 HARVARD PDP-1 User only Bob Sundberg
+ 10 LINCOLN IBM-360/67 "Soon" Joel Winnet
+ 74 LINCOLN TX2 "Soon" Tom Barkalow
+ 11 STANFORD PDP-10 "Soon" Andy Moorer
+ *12 ILLINOIS PDP-11 User Only John Cravits
+ *13 CASE PDP-10 March '72 Charles Rose
+ 14 CARNEGIE PDP-10 January '72 Hal VanZoeren
+ *15 AMES/(PAOLI) ILLIAC/
+ (B6500) September '62 John McConnel
+ *16 AMES IBM-360/67 Januray '72 Wayne Hathaway
+*144 AMES TIP User only
+*145 MITRE TIP User only
+ *19 NBS PDP-11 User only Robert Rosenthal
+*147 NBS TIP User only
+*158 BBN TIP
+ (Prototype) User only
+
+*Host not included in daily testing.
+
+ [ This RFC was put into machine readable form for entry ]
+ [ into the online RFC archives by Daniel Lang 4/97]
+
+
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+ [Page 5]
+