RFC306

Network Working Group E. Westheimer Request for Comments: 306 BBN NIC: 9257 February 15, 1972 Obsoletes: None

                      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.

1. 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.

1. 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]