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Network Working Group Ellen Westheimer Request for Comments: 315 BBN NIC: 9345 March 8, 1972 Updates: 306

                        NETWORK HOST STATUS
 This RFC reports on the status of most Network Hosts from February 14
 to February 25.  On February 21 Massachusetts celebrated Washington's
 Birthday.  During these two weeks the MIT Artificial Intelligence
 (MIT-AI) PDP-10, Network address 134, became a Network User.
 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:
    Address          Site            Computer
    -------          ----            --------
    134              MIT-AI          PDP-10
     13              Case            PDP-10
     15              Ames/(Paoli)    ILLIAC/(B6500)
    2) Hosts which are currently intended to be users only.  Included
    here are the Terminal IMP's 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:
    Address          Site            Computer
    -------          ----            --------
     7               Rand            IBM-360/65
    73               Harvard         PDP-1
    12               Illinois        PDP-11
    19               NBS             PDP-11
 The tables on the next two pages summarize the Host status for this
 *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.

Westheimer [Page 1] RFC 315 Network Host Status March 1972

                                                        "STATUS OR


  1     UCLA          SIGMA-7     Server #Limited      Jon Postel
 65     UCLA          IBM-360/91  NETRJS now           Bob Braden
                                  (Telnet in April)
  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      Server               Barry Wessler
 *5     BBN(NCC)      DDP-516     Never                Alex McKenzie
 69     BBN(TENEX-A)  PDP-10      Server               Dan Murphy

*133 BBN(TENEX-B) PDP-10 Server(Exper.) Dan Murphy

  6     MIT(Multics)  H-645       Server               Mike Padlipsky
 70     MIT(DM)       PDP-10      Server               Bob Bressler

*134 MIT(AI) PDP-10 User Now Jeff Rubin

  • 7 RAND IBM-360/65 User only Eric Harslem

71 RAND PDP-10 Server Eric Harslem

  • 8 SDC IBM-370/15 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 Winett

 74     LINCOLN       TX-2        Server               Will Kantrowitz
 11     STANFORD      PDP-10      "Soon"               Andy Moorer
*12     ILLINOIS      PDP-11      User Only            John Cravits
*13     CASE          PDP-10      June                 Charles Rose
 14     CANERGIE      PDP-10      "Soon"               Hal VanZoeren
*15     AMES/(PAOLI)  ILLIAC      September            John McConnell
 16     AMES          IBM-360/67  "Soon"               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 User Only

 *Host not included in daily testing.
 #The NMC is a research site and would like to have prior arrangement
 with each user.

Westheimer [Page 2] RFC 315 Network Host Status March 1972



—- —- ———————–

                2/14  2/15  2/16  2/17  2/18  2/22  2/23  2/24  2/25
                1830  1030  1730  1600  1200  1030  1500  1100  1500
 1   UCLA-NMC     O     O     O     O     0     O     D    #D     O
65   UCLA-CCN     O     D     O     O     D     D     O     O     O
 2   SRI-ARC      O     O     O     O     D     O     O     O     O
66   SRI-AI       D     D     D     D     D     D     D     D     D
 3   UCSB-MOD75   D    #D     O     O     O    #D     O     O     O
 4   UTAH-10      O     D     O     O     O     D     O     O     O
69   BBN-TENEX    O     O     O     O     T     T     O     O     O

133 BBN-TENEXB #D #D #D #D #D #D #D #D #D

 6   MIT-Multic   O     O     T     T     O     D     D     D     D
70   MIT-DMCG     O     O     O     D     T     O     H     O     D
71   RAND-CSG     T     T     O     T     O     H     D     O     O
 8   SDC-ADEPT   #D    #D     H    #D    #D    #D    #D    #D    #D
 9   HARVARD-10  #D     D    #D     O     O     D    #D    #D    #D
10   L.L.-67      H     D     H     H     H     H     H     H     H
74   L.L.-TX-2   #T     O    #D     O     O     O    #D     O     O
11   SU-AI        D     D     D     D     D     D     D     D     D
14   CMU-10       D     D     H     D     H     H     H     D     D
16   AMES-67      D     D     D     D     D     D     D     D     D
 D = Dead (Destination Host either dead or inaccessible [due to
     network partitioning or local IMP failure] from the BBN Terminal
 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
 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.)
 *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 NETRJS.  We are assuming that initial connection to
 the NETRJS logger indicates that NETRJS is also functioning.

Westheimer [Page 3] RFC 315 Network Host Status March 1972

 #These sites advertise that they may not have their system available
 at these times.
        [This RFC was put into machine readable form for entry]
    [into the online RFC archives by Hélène Morin, Viagénie, 12/99]

Westheimer [Page 4]

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