Network Working Group                           Ellen Westheimer
NIC #10423                                      BBN
RFC #344                                        22 May 1972
Categories:  F, G.3
Updates:  RFC #342
Obsoletes:  None


This RFC reports on the status of most Network Hosts from May 8 to May 19. No testing was done on May 15 due to the attempt to install the new IMP system on that day.

During this interval the PDP-10 of the MIT Artificial Intelligence Group (Network address 134) and the PDP-10 at Stanford (Network address 11) each became Network Servers.

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. The only Host in this category is the PDP-10 at Case (Network address 13).

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:


            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                                                       PREDICTIONS
-------  ----          --------     --------------------    -------------
   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(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       Server                  Jeff Rubin
  *7     RAND          IBM-360/65   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       Server                  Andy Moorer
 *12     ILLINOIS      PDP-11       User Only               John Cravits
 *13     CASE          PDP-10       June                    Charles Rose
  14     CARNEGIE      PDP-10       Server                  Hal VanZoeren
  15     AMES          ILLIAC       Server                  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
*148     ETAC          TIP          User Only
 *23     USC           IBM-360/44   User Now                James Pepin
*151     USC           TIP          User Only
*152     GWC           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.

[Page 2]

 NO.     SITE                      DATE AND TIME (EASTERN)
----     ----                      -----------------------
                    5/8   5/9   5/10  5/11  5/12  5/16  5/17  5/18  5/19
                    1630  1300  1730  1630  1300  1300  1600  1400  1300
  1     UCLA-NMC      T     D     O     H     H     D     O     O     O
 65     UCLA-CCN*     O     O     O     O     O     O     O     O     O
  2     SRI-ARC       O     O     D     O     O     O     O     O     O
 66     SRI-AI        D     D     D     D     D     D     D     D     D
  3     UCSB-MOD75    O     O     O     O     O     O     O     O     O
  4     UTAH-10       O     O     H     O     D     O     D     O     O
 69     BBN-TENEX     O     O     O     O     O     O     O     O     O
133     BBN-TENEXB   #T     O    #T    #T    #T    #T    #D     O     O
  6     MIT-MULTICS   O     D     O     O     O     O     O     D     H
 70     MIT-DMCG      F     O     O     O     O     F     O     F     O
134     MIT-AI        T     H     H     H     H     H     H     H     H
 71     RAND-CSG      D     H     O     O     O     O     D     D     D
  8     SDC-ADEPT     D    #D     D     D     D    #D    #D    #D    #D
  9     HARVARD-10    O     O    #D     O     O     O     O     O     O
 10     L.L.-360      T     D     D     D     H     D     H     H     H
 74     L.L.-TX-2     T     D     O     O     O     D    #D     O     R
 11     STANFORD-AI   T     D     D     T     T     H     D     D     D
 14     CMU-10        D     D     O     O     O     O     O     O     O
 15     AMES-ILLIAC   D     D     T     T     D     D     T     T     T
 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 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 with 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.
#These sites advertise that they may not have their system available at
these times.

[Page 3]

       [ into the online RFC archives by BBN Corp. under the   ]
       [ direction of Alex McKenzie.                   12/96   ]

[Page 4]