Network host status

E. Westheimer

doi:10.17487/RFC0288

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This is a modified version of the Internet RFC suitable for machine-translating. Original version is available here: RFC288

Obsoleted by: 293 UNKNOWN
Updated by: 293

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.

Westheimer                                                      [Page 1]


RFC 288                   Network Host Status               January 1972

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.

Westheimer                                                      [Page 2]


RFC 288                   Network Host Status               January 1972
   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
Westheimer                                                      [Page 3]


RFC 288                   Network Host Status               January 1972

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, Viagï¿½nie 10/99]

Westheimer [Page 4]

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