RFC 319

Network Host Status

πŸ“… published March 1972, from ietf

RFC 319: Network Host Status πŸ¦‹βœ¨

okay bestie, here's the deal πŸ’… RFC 319 is from the Network Working Group, written by Ellen Westheimer at BBN, with NIC number 9349, dated March 21, 1972. It updates RFC 315. πŸŽ€ It doesn't obsolete anything.

This one is a status report on most of the Network Hosts from February 28 to March 10. 🌸 The ETAC Terminal IMP (Network address 148) got installed during this stretch, so it's new on the scene. πŸ”₯

Several Hosts are currently left out of the daily testing, and they fall into two groups. 🧚

  1. Hosts not expected to be working as servers (so, available for use from other sites) on a regular basis for at least two weeks. 😭 The ones in this group are:
Network
Address          Site            Computer
-------          ----            --------
134              MIT-AI          PDP-10
 13              Case            PDP-10
 15              Ames/(Paoli)    ILLIAC/(B6500)
  1. Hosts that are meant to be user-only for now. πŸ’œ This group includes the Terminal IMPs currently on the Network (AMES, MITRE, NBS, and BBN). Quick aside: the BBN Terminal IMP (Network Address 158) is a prototype, so it's often not connected to the Network. It's being used to refine and debug the Terminal IMP programs instead. πŸ™ˆ The group also has the Network Control Center computer (Network Address 5), which is used only for gathering statistics from the Network. And finally, these Hosts are in here too:
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 sum up the Host status for this period. πŸ‘‘

                                                          "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       "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
*158     BBN           TIP          User Only
                       (Prototype)
  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-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 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/(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
*148     ETAC          TIP          User Only

   _________________
   *Host not included in daily testing.

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

Now the day-by-day schedule. πŸ“ First block covers 2/28 through 3/3:

   SITE
    NO.    SITE                   DATE AND TIME (EASTERN)
   ----    ----                   -----------------------
                                 2/28  2/29   3/1   3/2   3/3
                                1200  1330  1100  1320  1700
     1     UCLA-NMC               O     O    #D     O     0
    65     UCLA-CCN               O     O    #D     O     O
     2     SRI-ARC                O     O    #D     T     D
    66     SRI-AI                 D     D     D     D     D
     3     UCSB-MOD75             O     O     O     O     O
     4     UTAH-10                O     O    #D     O     O
    69     BBN-TENEX              O     O     O     O     O
   133     BBN-TENEXB            #D    #D     O    #D    #T
     6     MIT-Multics            O     O     O     O     O
    70     MIT-DMCG               O     H     D     O     O
    71     RAND-CSG               O     T     O     O     D
     8     SDC-ADEPT             #D    #D    #D    #D    #D
     9     HARVARD-10             O    #D     T     O     O
    10     L.L.-67                H     H     T     H     H
    74     L.L.-TX-2              O     O    #D     T     O
    11     SU-AI                  D     D     D     D     D
    14     CMU-10                 H     D     D     H     D
    16     AMES-67                D     D     D     D     D

Second block covers 3/6 through 3/10. 🌈

   SITE
    NO.    SITE                   DATE AND TIME (EASTERN)
   ----    ----                   -----------------------
                                 3/6   3/7   3/8   3/9  3/10
                                1530  1600  1430  1400  1700
     1     UCLA-NMC               O     O     O     O    #D
    65     UCLA-CCN               D     O     O     O     O
     2     SRI-ARC                O     O     H     D     O
    66     SRI-AI                 D     D     D     D     D
     3     UCSB-MOD75             O     O     O     O     O
     4     UTAH-10                O     O     O     O     O
    69     BBN-TENEX              D     O     O     O     O
   133     BBN-TENEXB            #D    #D    #D    #D    #D
     6     MIT-Multics            O     O     D     D     O
    70     MIT-DMCG               D     D     O     O     O
    71     RAND-CSG               D     D     O     O     O
     8     SDC-ADEPT             #D    #D    #D    #D     D
     9     HARVARD-10             O     O     O     O     O
    10     L.L.-67                H     D     H     H     H
    74     L.L.-TX-2              O     O    #D     O     O
    11     SU-AI                  D     D     D     D     D
    14     CMU-10                 D     D     D     D     D
    16     AMES-67                D     D     D     D     D

Here's the decoder ring for those codes πŸ”

  • D = Dead πŸ’€ The Destination Host is either dead, or it's inaccessible from the BBN Terminal IMP (because of network partitioning or a local IMP failure).
  • H = 1/2 Open πŸ™ˆ The Destination Host opened a connection, but then either immediately closed it or stopped responding.
  • O = Open ✨ The Destination Host opened a connection and was accessible to users.
  • R = Refused πŸ₯€ The Destination Host returned a CLS to the initial RFC.
  • T = Timed out ⏰ The Destination Host didn't finish the ICP and open a connection within 60 seconds.
The only service the UCLA IBM-360/91 offers right now is Network Job Service (NETRJS). The BBN Terminal IMP isn't equipped to test NETRJS, though. 😭 So we're assuming that a successful initial connection to the NETRJS logger means NETRJS is working too.

#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 Hilhne Morin, Viaginie, 12/99] 🌸

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