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Network Working Group                            Ellen Westheimer
NIC #10421                                       BBN
RFC #342                                         15 May 1972
Categories:  F. G.3
Updates:  RFC #332
Obsoletes:  None

                          NETWORK HOST STATUS

        This RFC reports on the status of most Network Hosts from April
   24 to May 5.  During this interval the IBM 360/44 at the University
   of Southern California (Network Address 23) 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:

         Network
         Address              Site               Computer
         -------              ----               --------
           134               MIT-AI              PDP-10
            13               Case                PDP-10

        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, ETAC, USC, GWC, 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:

         Network
         Address              Site               Computer
         -------              ----               --------
             7               Rand                IBM-360/65
            73               Harvard             PDP-1
            12               Illinois            PDP-11
            19               NBS                 PDP-11
            23               USC                 IBM-360/44

        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.




                                                                [Page 1]

SITE
 NO.    SITE                         DATE AND TIME (EASTERN)
----    ----                         -----------------------
                    4/24  4/25  4/26  4/27  4/28  5/1   5/2   5/3   5/4   5/5
                    1700  1600  1300  1430  1700  1300  1300  1700  1430  1430
  1    UCLA-NMC       O     O     D     O     O     O     O     O     O     O
 65    UCLA-CCN*      O     O     D     O     O     D     O     O     O     O
  2    SRI-ARC        O     O     O     O     O     O     T     D     O     O
 66    SRI-AI         D     D     D     D     D     O     D     D     D     D
  3    UCSB-MOD75     O     H     O     O     O     O     O     O     O     O
  4    UTAH -10       O     D     O     D     T     T     O     T     T     O
 69    BBN-TENEX      O     O     T     T     O     O     O     O     O     O
133    BBN-TENEXB    #D    #D    #D    #D    #D    #D    #D    #D    #D     T
  6    MIT-MULTICS    R     D     O     O     O     O     D     O     D     O
 70    MIT-DMCG       O     O     F     F     O     F     O     O     O     F
 71    RAND-CSG       O     O     O     T     O    #O!    D     O     O     O
  8    SDC-ADEPT      D    #D    #D    #D     D    #D     D    #D     D    #D
  9    HARVARD-10     O     O     O     O     O     O     O     O    #D     D
 10    L.L.-360       D     D     D     H     H     D     D     H     D     D
 74    L.L-TX-2       O     T    #D     O     O     O     O    #D     O     O
 11    STANFORD-AI    D     D     D     D     D     D     D     T     D     D
 14    CMU-10         O     O     D     O     D     D     D     D     O     O
 15    AMES-ILLIAC    T     D     T     T     D     T     T     T     D     T
 16    AMES-67        D     D     D     D     D     D     D     D     D     D

where
D = Dead (Destination Host either dead or inaccessible [due to network
    partitioning or local IMP failure] from the BBN Terminal IMP.)

F = Full (Destination Host opened a connection, informed user that all
    Network ports were in use, and immediately closed the connection.

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.)
____________

 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.
#These sites advertise that they may not have their system available at
 these times.
!Rand opened a connection but requested users to logout immediately.



                                                                [Page 2]

                                                           "STATUS OR
 SITE                                                      PREDICTIONS"
ADDRESS  SITE         COMPUTER     STATUS OR PREDICTION    OBTAINED FROM
-------  ----         --------     --------------------    -------------

   1     UCLA         SIGMA-7      Server #Limited         Jon Postel
  65     UCLA         IBM-360/91   NETRJS now              Bob Braden
                                   (Telnet in June)
   2     SRI(NIC)     PDP-10       Server                  Jim White
  66     SRI(AI)      PDP-10       Server                  Len Chaiten
   3     UCSB         IBM-360/75   Server                  Ron Stoughton
   4     UTAH         PDP-10       Server                  Barry Wessler
  *5     BBN(NCC)     DDP-516      Never                   Alex McKenzie
  69     BBN(TENEXA)  PDP-10       Server                  Dan Murphy
 133     BBN(TENEXB)  PDP-10       Server(Exper.)          Dan Murphy
   6     MIT(Multics) H-645        Server                  Mike Padlipsky
  70     MIT(DM)      PDP-10       Server                  Bob Bressler

  *7     RAND         IBM-370/65   User Only               Eric Harslem
  71     RAND         PDP-10       Server                  Eric Harslem
   8     SDC          IBM-370/155  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     CARNEGIE     PDP-10       "Soon"                  Hal VanZoeren
  15     AMES         ILLIAC       Server                  John McConnell
                      (B6500)
  16     AMES         IBM-360/67   "Soon"                  Wayne Hathaway

 *19     NBS          PDP-11       User Only               Robert Rosenthal

 *23     USC          IBM-360/44   User Now                James Pepin

                      (Prototype)
________________


#The NMC is a research site and would like to have prior arrangement
with each user.





                                                                [Page 3]

       [ This RFC was put into machine readable form for entry ]
       [ into the online RFC archives by BBN Corp. under the   ]
       [ direction of Alex McKenzie.                   12/96   ]

















































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