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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.
-
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- [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]
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