RFC 298

Network host status

πŸ“… published February 1972, from ietf

Network Host Status πŸŽ€

RFC 298, written by E. Westheimer on 1 February 1972, with NIC number 8486 πŸ’– The original doesn't list a category, and it doesn't say what it obsoletes or updates, so there's nothing to add there ✨


Okay bestie, so this RFC is a status report on most Network Hosts from January 17 to January 28 🌸 Lowkey it's giving "who's online and who's ghosting" πŸ‘€

Some Hosts get left out of the daily testing 🧚 They fall into two groups:

  1. Hosts that aren't expected to work as servers (basically, available for other sites to use) on a regular basis for at least two weeks πŸ’… Here they are:
NETWORK             SITE           COMPUTER
ADDRESS

133                 BBN            PDP-10(B)
13                  Case           PDP-10
15                  Ames/(Paoli)   ILLIAC/(B6500)
  1. Hosts that are meant to be users only πŸ“ This group includes the Terminal IMPs that are currently on the Network (AMES, MITRE, NBS and BBN*). It also has the Network Control Center (Network Address 5), which is used solely for gathering statistics from the Network πŸ“Š And then there are these:
NETWORK             SITE           COMPUTER
ADDRESS

7                   Rand           IBM-360/65
73                  Harvard        PDP-1
12                  Illinois       PDP-11
19                  NBS            PDP-11
πŸ”₯ NOTE: During this interval both the UTAH PDP-10 and the RAND PDP-10 became Network servers. Main character glow-up energy πŸ‘‘

The tables on the next two pages sum up the Host status for this stretch πŸ’œ

* The BBN Terminal IMP (Network Address 158) is a prototype, so it's frequently not connected to the Network. It's actually being used to refine and debug the Terminal IMP programs πŸ¦‹


ADDRESS  SITE           COMPUTER          DATE AND TIME (EASTERN)
                                        1/17  1/18  1/19  1/20  1/21
                                        1800  1730  1000  1500  1730

  1      UCLA(NMC)      SIGMA-7         #H     O    #D     O     O
 65      UCLA(CCN)      IBM-360/91       O     O    #D     O     O
  2      SRI(NIC)       PDP-10           O     O     O     O     O
 66      SRI(AI)        PDP-10           D     D     D     D     D
  3      UCSB           IBM-360/75       O     O     O     D     O
  4      UTAH           PDP-10           T     T    #T     O     O
 69      BBN(10X-A)     PDP-10           O     O     D     O     D
  6      MIT(Multics)   H-645            O     T     O     D     O
 70      MIT(DM)        PDP-10           D     D     O     O     D
 71      RAND           PDP-10           D     D     O     D     D
  8      SDC            IBM-360/155     #D    #D    #D    #D    #D
  9      HARVARD        PDP-10           O    #D     O    #D    #D
 10      LINCOLN LABS   IBM-360/67       D     H     T     H     H
 74      LINCOLN LABS   TX2             #D    #T    #D     R     O
 11      STANFORD       PDP-10           D     D     D     D     D
 14      CARNEGIE       PDP-10           H     H     H     H     H
 16      AMES           IBM-360/67       D     D     D     D     D


ADDRESS  SITE           COMPUTER          DATE AND TIME (EASTERN)
                                        1/24  1/25  1/26  1/27  1/28
                                        1430  1630  1730  1300  1530

  1      UCLA(NMC)      SIGMA-7          O     O     O     O     T
 65      UCLA(CCN)      IBM-360/91       O     O     O     O     O
  2      SRI(NIC)       PDP-10           O     O     T     O     O
 66      SRI(AI)        PDP-10           D     D     D     D     D
  3      UCSB           IBM-360/75       O     O     D     O     O
  4      UTAH           PDP-10           O     O     O     O     O
 69      BBN(10X-A)     PDP-10           O     D     O     H     O
  6      MIT(Multics)   H-645            R     O     D     O     D
 70      MIT(DM)        PDP-10           O     D     T     O     H
 71      RAND           PDP-10           T     D     D     O     D
  8      SDC            IBM-360/155     #D    #D    #D    #D    #D
  9      HARVARD        PDP-10          #R    #R     O     O     O
 10      LINCOLN LABS   IBM-360/67       H     D     H     T     H
 74      LINCOLN LABS   TX2              O     O     O     O     T
 11      STANFORD       PDP-10           D     D     D     D     D
 14      CARNEGIE       PDP-10           D     H     H     D     H
 16      AMES           IBM-360/67       D     D     D     D     D

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

  • D = Dead πŸ’€ The Destination Host is either dead or 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 closed it right away or stopped responding.
  • O = Open ✨ The Destination Host opened a connection and was accessible to users.
  • R = Refused 🚫 The Destination Host sent a CLS back 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 currently offers is a Network Job Service (NETRJS). The BBN Terminal IMP isn't equipped to test NETRJS, though, so we're assuming that the 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 ⚠️

Now the big one, the status and predictions table πŸ“‹

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

      1       UCLA         SIGMA-7      Server(#Limited)    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       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-300/155  Server              Bob Long
      9       HARVARD      PDP-10       Server              Bob Sundberg
    *73       HARVARD      PDP-1        User only           Bob Sundberg
     10       LINCOLN      IBM-30/67    "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/B6500 September           John McConnell
     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 🫢

#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 Kelly Tardif, Via Genie 10/1999]

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