Network Host Status

E. Westheimer

doi:10.17487/RFC0330

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This is a modified version of the Internet RFC suitable for machine-translating. Original version is available here: RFC330

UNKNOWN
Updated by: 332

Network Working Group                            Ellen Westheimer
NIC #9923                                        BBN
RFC #330                                         13 April 1972
Categories:  F, G.3
Updates:  RFC #326
Obsoletes:  None

NETWORK HOST STATUS

This RFC reports on the status of most Network Hosts from March 27 to April 7. During this interval the PDP-10 at Ames which acts as a front-end to the Illiac (Network address 15) became a server. However, this Host will not be available to general use for several months. Also a Terminal IMP was installed at the University of Southern California (Network Address 23) on March 29.

Several Hosts are currently excluded from the daily testing. These Host 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

         Address              Site                Computer
         -------              ----                --------
           134               MIT-AI               PDP-10

13 Case PDP-10

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, ETAC, USC, 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 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.

                                                                [Page 1]


SITE

NO. SITE DATE AND TIME (EASTERN)
---- ---- -----------------------
3/27 3/28 3/29 3/30 3/31 4/3 4/4 4/5 4/6 4/7 1430 1400 1600 1500 1300 1700 1200 1730 1630 1330
1 UCLA-NMC O H O O O O #D O O O
65 UCLA-CCN O O O O O O D O O O
2 SRI-ARC O D D O O O O O O O
66 SRI-AI O D #D D D D O D D D
3 UCSB-MOD75 O O O O O O O O T O 4 UTAH-10 O O O O O O O D O O
69 BBN-TENEX O O O O O O O O O O

133    BBN-TENEXB    #D    #D    #D    #D    #D    #T    #T    #D    #D    #T

6 MIT-Multics D H T D D O D O O O
70 MIT-DMCG O O O O O H T T T O 71 RAND-CSG O D O O O O O O O O 8 SDC-ADEPT #D #D #D #D #D D #D D #D #D 9 HARVARD-10 D D O O O O #D O O O 10 L.L.-360 T H H H H D H H H H 74 L.L.-TX-2 O O O D O O O #D O O 11 STANFORD-AI D D D D D D D D D D 14 CMU-10 H H D D D D D H H H 15 AMES-Illiac D D D H O H D H D O 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 = 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.

                                                                [Page 2]


                                                              "STATUS OR
SITE                                                          PREDICTIONS"

ADDRESS SITE COMPUTER STATUS OR 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 Server 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

*134 MIT(AI) PDP-10 User Now Jeff Rubin
*7 RAND IBM-360/65 User Only Eric Harslem

  71     RAND         PDP-10         Server                   Eric Harslem
  *8     SDC          IBM-360/155    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 Winett 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 June Charles Rose
14 CARNEGIE PDP-10 "Soon" Hal VanZoeren
*15 AMES ILLIAC Server 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 *148 ETAC TIP User Only
*23 USC 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 BBN Corp. under the ] [ direction of Alex McKenzie. 12/96 ]

[Page 3]

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