GENWiki

Premier IT Outsourcing and Support Services within the UK

User Tools

Site Tools

Problem, Formatting or Query -  Send Feedback

Was this page helpful?-10+1


rfc:rfc240

Networking Group A. McKenzie Request for Comments: 240 BBN NIC #7665 30 September 1971 Categories: F, G.3 Rand 50ctu Updates: none Obsoletes: RFC 235

                            SITE STATUS
   Due to extensive typographic errors in RFC #235, I have

decided to reissue the first of our experimental site status reports.

   In compiling RFC #235, I followed the principle that

timeliness was somewhat more important than extremely careful editing; this seemed to me to be in keeping with the original RFC philosophy. I am sorry for any embarrassment this may have caused to anyone associated with the Network, and accept full responsibility for the content of RFC #235. I will try to do a better job in the future.

Alex McKenzie

                            SITE STATUS
   Beginning with this RFC, BBN will report on the status of

most Network Hosts approximately once every two weeks. The information for these reports will be gained from talking to people at each site, and from experimental "data". These data will be the results of daily attempts to log into each of the Hosts which might be accessible to a Network user; the attempts will have been made from the BBN prototype Terminal IMP at a random time each weekday.

   Several Hosts are currently excluded from the daily testing.

These Hosts fall into two categories:

   1)   Hosts which are note expected to be functioning on the
        Network as servers (available for use from other sites) for at
        least a month.  Included here are:
             Network        Site      Computer
             Address
               71           Rand      PDP-10
               74           Lincoln   TX2
               11           Stanford  PDP-10
                                                              [Page 1]

RFC #240

               13           Case      PDP-10
               14           Carnegie  PDP-10
               15           Paoli     B6500
   2)   Hosts which are currently intended to be users only.
        Included here are the Terminal IMPs presently in the Network
        (AMES, MITRE, and BBN[1]).  This category also includes the
        Network Control Center computer (Network Address 5) which is
        use 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
   The tables on the next two pages condense the information on

Host status for September 13 through September 24.

                                                      PREDICTIONS

NETWORK SITE COMPUTER STATUS or PREDICTION OBTAINED ADDRESS FROM

1 UCLA SIGMA - 7 Server Jon Postel 65 UCLA IBM-360/91 Remote Job Service now,

                              Time-sharing in January Steve Wolf

2 SRI(NIC) PDP-10 October 11 John Melvin 66 SRI(AI) PDP-10 November Len Chaiten 3 UCSB IBM-360-75 Server Jim White 4 UTAH PDP-10 "Soon" Barry Wessler 5 BBN DDP-516 NCC Alex McKenzie 69 BBN PDP-10 Server Dan Murphy 6 MIT(Multics) H-645 "Soon" Mike Padlipsky 70 MIT(DM) PDP-10 Server Bob Bressler 7 RAND IBM 360/65 User only Eric Harslem 71 RAND PDP-10 January Eric Harslem 8 SDC IBM-360/67 October 11 Bob Long 9 HARVARD PDP-10 "Soon" Bob Sundberg 73 HARVARD PDP-1 User only Bob Sundberg 10 LINCOLN IBM-360/67 "Soon" Joel Winnet 74 LINCOLN TX2 Uncertain Tom Barkalow 11 STANFORD PDP-10 November Andy Moorer 12 ILLINOIS PDP-11 User only John Cravits 13 CASE PDP-10 December 15 Charles Rose 14 CARNEGIE PDP-10 January Hal VanZoeren 15 PAOLI B6500 Uncertain John Cravits

                                                              [Page 2]

RFC #240

16 AMES TIP Installed 17 MITRE TIP Installed 30 BBN TIP Prototype

NETWORK SITE COMPUTER DATE AND TIME (P.M.) ADDRESS 9/13 9/14 9/15 9/16 9/17 9/20

                              4:30  3:30  6:00  10:30 1:30  12:30

1 UCLA SIGMA-7 O O O D D D 65[2] UCLA IBM 360/91 O O O O O D 2 SRI(NIC) PDP-10 D D D D D D 66 SRI(AI) PDP-10 D D D D D D 3 UCSB IBM-360/75 O O O O O O 4 UTAH PDP-10 D D D D D D 69 BBN PDP-10 O 1/2 0 O T 1/2 O O 6 MIT(Multics) H-645 R R R D 1/2 O D 70 MIT(DM) PDP-10 T T T O O T 8 SDC IBM-360/67 D D D D T D 9 HARVARD PDP-10 T D T T T T 10 LINCOLN IBM-360/67 D 1/2 0 1/2 0 D T D

NETWORK SITE COMPUTER DATE AND TIME (P.M.) ADDRESS 9/21 9/22 9/23 9/24

                              4:30  3:30  2:00  5:00

1 UCLA SIGMA-7 O D T O 65[2] UCLA IBM 360/91 O O O O 2 SRI(NIC) PDP-10 D O D D 66 SRI(AI) PDP-10 D D D D 3 UCSB IBM-360/75 O O O O 4 UTAH PDP-10 D D D D 69 BBN PDP-10 O 1/2 O O O 6 MIT(Multics) H-645 1/2 O T T R 70 MIT(DM) PDP-10 1/2 O O D D 8 SDC IBM-360/67 D D D D 9 HARVARD PDP-10 D T D D 10 LINCOLN IBM-360/67 D D 1/2 0 D

                                                              [Page 3]

RFC #240

where

D = Dead.  (Destination Host either dead orinaccessible (due to
           network partitioning or local IMP failure) from the BBN
           Terminal IMP).
R = Refused.  (Destination Host returned a CLS to the initial RFC.) T
= Timed Out.  (Destination Host did not respond in any way to the
           initial RFC, although not dead.)
1/2 0 = 1/2 Open.  (Destination Host opened a connection but then
           either immediately close it, or did not respond any
           further.)
O = Open.  (Destination Host opened a connection and was
           accessible to users.)

Endnotes

 [1] 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.
 [2] The UCLA IBM-360 is at the moment only able to handle Remote Job
 Service.  BBN is not equipped to test this, but is assuming that
 receipt of their canned message indicates that RJS is also
 functioning.
       [ This RFC was put into machine readable form for entry ]
          [ into the online RFC archives by Roy Zimmer 9/97 ]
                                                              [Page 4]
/data/webs/external/dokuwiki/data/pages/rfc/rfc240.txt · Last modified: 1998/01/23 00:04 (external edit)