NETWORK HOST STATUS

This RFC reports on the status of most Network Hosts from January 31 to February 11.

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              SITE                COMPUTER
          ADDRESS

133 BBN PDP-10 (B)

13 Case PDP-10

15 Ames/(Paoli) ILLIAC/(B6500)

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:

          NETWORK              SITE                COMPUTER
          ADDRESS
          
          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 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.

                                                           "STATUS OR
   SITE     SITE         COMPUTER      STATUS OR           PREDICTIONS"
   ADDRESS                             PREDICTION          OBTAINED FROM
   
      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
     *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 Winnet
     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        March              Charles Rose
     14     CARNEGIE     PDP-10        SOON               Hal VanZoeren
     15     AMES/(PAOLI) ILLIAC        September          John McConnell
                           (B6500)
     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
                         (Prototype)
   
   ________
   * Host not included in daily testing.

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

SITE     SITE                         DATE AND TIME (EASTERN)
NO.                1/31  2/1  2/2  2/3  2/4  2/7  2/8  2/9  2/10  2/11
                    1430 1530 1430 1630 1530 1830 1500 1730  1000 1230

1    UCLA-NMC       H     O    O    O    O    O    O    O     O    #D
65   UCLA-CCN       O     O    O    O    D    O    O    O     D    #D
2    SRI-ARC        O     O    D    O    O    O    O    T     H    O
66   SRI-AI         D     D    D    D    D    D    D    D     D    D
3    UCSB-MOD75     O     O    H    O    H    D    O    O     O    O
4    UTAH-10        D     O    T    O    D    D    D    O     D    D
69   BBN-TENEX      T     O    O    O    O    D    O    O     O    O
6    MIT-Multics    O     O    D    O    O    D    R    D     O    O
     MIT-DMCG       H     D    D    D    D    D    H    D     O    O
71   RAND-CSG       T     T    T    D    D    D    D    D     T    T
8    SDC-ADEPT      #D    #D   #D   #D   #D   D    #D   D     #D   #D
9    HARVARD        O     O    O    O    #D   #T   O    O     D    #D
10   L.L.-67        T     H    H    D    H    D    H    H     H    H
74   L.L.-TX-2      D     D    D    T    T    #D   O    #D    D    #T
11   SU-AI          D     D    D    D    D    D    D    D     D    D
14   CMU-10         D     H    H    H    H    D    D    D     D    H
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.)

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 = Time 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.

        [This RFC was put into machine readable form for entry]
     [into the online RFC archives by Hélène Morin, Viagénie 10/99]