NETWORK HOST STATUS

This RFC reports on the status of most Network Hosts from July 3 to July 14.

No testing was done on July 4 as BBN took a holiday to celebrate Independence Day. No testing was done on July 11 and 12 as I was on vacation.

Several Hosts are currently excluded from the daily testing as they are presently intended to be users only. Included here are the Terminal IMPs, which are presently in the Network (AMES, MITRE, RADC, NBS, ETAC, USC, GWC, NOAA, SAAC, ARPA, 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
   138               Lincoln         TSP
   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.
   NO.   SITE            DATE AND TIME (EASTERN)
                         7/3   7/5   7/6   7/7   7/12   7/13   7/14
                         1730  1200  1700  1630  1600   1700   1400
   1     UCLA-NMC         O      H     H     O     O      O      O
   65    UCLA-CCN*        D     #D     O     O     O      O      O
   2     SRI-ARC          O      D     D     O     O      O      O
   66    SRI-AI           D     #D     O     O     O      D      O
   3     UCSB-MOD75       D      O     O     O     O      O      D
   4     UTAH-10          D      O     O     O     O      O      D
   69    BBN-TENEX        H      O     O     O     O      O      F
   133   BBN-TENEXB      #D     #D    #D    #D    #D     #D     #D
   6     MIT-MULTICS      O      O     O     O     O      O      O
   70    MIT-DMCG         O      O     O     O     O      F      H
   134   MIT-AI           O      O     O     O     O      O      O
   194   MIT-ML           H      O     O     O     O      O      O
   71    RAND-CSG         D      O     O     O     O      O      O
   8     SDC-ADEPT        D     #D     D     D    #D      D     #D
   9     HARVARD-10       O     #D    #D     O     O     #D      O
   10    L.L.-360         D      H     H     H     H      D      H
   74    L.L.-TX-2       #D      O     O     O     O      O      D
   11    STANFORD-AI      O      O     R     O     O      O      O
   13    CASE             D      D     D     D     D      D      D
   14    CMU-10           O      D     O     D     D      O      D
   15    AMES-ILLIAC      D      D     D     D     O      O      D
   16    AMES-67          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.)

---------
*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.

                                                      STATUS OR
SITE                                STATUS            PREDICTIONS
ADDRESS  SITE          COMPUTER     OR PREDICTIONS    OBTAINED FROM
-------  ----          --------     ----------------  ---------------
         UCLA          SIGMA-7      Server #Limited   Jon Postel
         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
 198     MIT (ML)      PDP-10       Server            Jeff Rubin
  *7     RAND          IBM-360/65   User Only         Eric Harslem
  71     RAND          PDP-10       Server            Eric Harslem
   8     SDC           IBM-370/15   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
*138     LINCOLN       TSP          User Only         Tom Barkelow
  11     STANFORD      PDP-10       Server            Andy Moorer
 *12     ILLINOIS      PDP-11       User Only         John Cravits
 *13     CASE          PDP-10       July              Charles Rose
  14     CARNEGIE      PDP-10       Server            Hal VanZoeren
  15     AMES          ILLIAC       Server            John McConnell
                       (PDP-10)
  16     AMES          IBM-360/67   "Soon"            Wayne Hathaway
*144     AMES          TIP          User Only
*145     MITRE         TIP          User Only
*146     RADC          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
*153     NOAA          TIP          User Only
*154     SAAC          TIP          User Only
*156     ARPA          TIP          User Only
*158     BBN           TIP          User Only
                       (Prototype)

*Host not included in daily testing.

#The NMC is a research site and would like to have prior arrangement

with each user.

        [This RFC was put into machine readable form for entry]
    [into the online RFC archives by Hélène Morin, Viagénie, 12/99]