RFC288

Network Working Group E. Westheimer Request for Comments: 288 BBN NIC: 8274 January 6, 1972 Obsoletes: None Updates: 287

                      NETWORK HOST STATUS

This RFC reports on the status of most Network Hosts from December 20 to December 30. (On December 24 and December 31 BBN celebrated Christmas and New Year's Day respectively.)

During these two weeks the Lincoln Labs TX2 (Network Address 112) became a server.

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)
  15                 Case            PDP-10
  13                 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 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.

The tables on the next two pages summarize the Host status for this period.

STATUS OR NETWORK SITE COMPUTER STATUS OR PREDICTIONS ADDRESS PREDICTION OBTAINED FROM

1 UCLA SIGMA-7 Server John Postel

 65      UCLA         IBM-360/91    Remote Job Service 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 SOON 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        SOON               Eric Harslem
 *8      SDC          IBM-360/67    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             Tom Barkalow
 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

5 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.

ADDRESS SITE COMPUTER DATE AND TIME (EASTERN) NETWORK 12/20 12/21 12/22 12/23

                                     1700  1200  1400   1700

1        UCLA          SIGMA-7          O    #D     O      O

65* UCLA IBM-360/91 O O D D

2        SRI(NIC)      PDP-10           D     O     D      D

66 SRI(AI) PDP-10 D D D D

3        UCSB          IBM-360/75       T     D     D      T
4        UTAH          PDP-10           O     O     D      D

69 BBN PDP-10 H O D O

6        MIT(Multics)  H-645            D     D     D      T

70 MIT(DM) PDP-10 O O H O 71 RAND PDP-10 D D D D

8        SDC           IBM-360/67      #D    #D    #D     #D
9        HARVARD       PDP-10           D     T     D      D

10 LINCOLN LAB IBM-360/67 H H H D 74 LINCOLN LAB TX2 H H #D T 11 STANFORD PDP-10 D D D D 14 CARNEGIE PDP-10 D D D D 16 AMES IBM-360/67 D D D D

ADDRESS SITE COMPUTER DATE AND TIME (EASTERN) NETWORK 12/27 12/28 12/29 12/30

                                     1730  1300  1600  1400

1        UCLA          SIGMA-7          T    #D     O     O

65* UCLA IBM-360/91 O O O O

2        SRI(NIC)      PDP-10           D     D     D     D

66 SRI(AI) PDP-10 D D D O

3        UCSB          IBM-360/75       D     D     D     D
4        UTAH          PDP-10           D     D     D     D

69 BBN PDP-10 O O O H

6        MIT(Multics)  H-645            O     O     O     O

70 MIT(DM) PDP-10 O D O D 71 RAND PDP-10 D D D D

8        SDC           IBM-360/67       H    #D    #D    #D
9        HARVARD       PDP-10           T     T     D     T

10 LINCOLN LAB IBM-360/67 D H T T 74 LINCOLN LAB TX2 D D #D H 11 STANFORD PDP-10 D D D D 14 CARNEGIE PDP-10 D D D D 16 AMES IBM-360/67 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 = Timed out (Destination Host did not complete the ICP and open
  a connection within 60 second)

  * 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 indicated the 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 Kelly Tardif, Viagénie 10/99]