Premier IT Outsourcing and Support Services within the UK

User Tools

Site Tools

Problem, Formatting or Query -  Send Feedback

Was this page helpful?-11+1


Network Working Group Ellen Westheimer Request for Comments: #287 BBN NIC: #8273 22 December 1971 Categories: F, G.3 Updates: RFC #267 Obsoletes: None

                      Status of Network Hosts
   This RFC reports on the status of most Network Hosts from

December 6 to December 18. Due to hardware debugging, the BBN prototype Terminal IMP (Network Address 158) was unavailable for most of the two weeks from November 22 to December 6. There was, therefore, no Host status reports for that period.

   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:
 Address              Site                Computer
 -------              ----                --------
   133                BBN                 PDP-10 (B)
    71                Rand                PDP-10
    13                Case                PDP-10
    15                Ames/(Paoli)        ILLIAC/(B6500)
    16                Ames                IBM-360/67
 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:
                                                              [Page 1]
 Address              Site                Computer
 -------              ----                --------
     7                Rand                IBM-360/65
    73                Harvard             PDP-1
    12                Illinois            PDP-11
    19                NBS                 PDP-11
   The NBS Terminal IMP (Network Address 147) was installed in

Washington at the beginning of December.

   The tables on the next two pages summarize the Host status for this


* 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 2]


                                    M      Tu       W      Th       F
                                  12/6    12/7    12/8    12/9    12/10
                                  1300    1700    1300    1300    1630
 1    UCLA          SIGMA-7         D       O       O       H       T

*65 UCLA IBM-360/91 H H D H H

 2    SRI (NIC)     PDP-10          D       T       D       D       D
66    SRI (AI)      PDP-10          D       D       D       D       D
 3    UCSB          IBM-360/75      O       D       O       R       D
 4    UTAH          PDP-10          T       D       D       D       T
69    BBN           PDP-10          D       D       D       D       T
 6    MIT (Multics) H-645           O       O       O       T       O
70    MIT (DM)      PDP-10          O       O       D       D       O
 8    SDC           IBM-360/67     #D      #D      #D      #D      #D
 9    HARVARD       PDP-10          D       T       D       O       D
10    LINCOLN LAB   IBM-360/67      D       D       D       D       H
74    LINCOLN LAB   TX2             D       D       D       D       D
11    STANFORD      PDP-10          D       D       D       D       D
14    CARNAGIE      PDP-10          D       D       O       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


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.)
                                                              [Page 3]


                                    M      Tu       W      Th       F
                                  12/13   12/14   12/15   12/16   12/17
                                  1300    1700    1700    1600    1400
                                  1000    1400    1400    1300    1100
 1    UCLA          SIGMA-7         D      #D       D       O       O

*65 UCLA IBM-360/91 O #D D O O

 2    SRI (NIC)     PDP-10          D       D       D       T       O
66    SRI (AI)      PDP-10          D       D       D       D       D
 3    UCSB          IBM-360/75      T       O       D       O       D
 4    UTAH          PDP-10          D       D       D       D       D
69    BBN           PDP-10          T       H       H       O       T
 6    MIT (Multics) H-645           O       H       O       D       D
70    MIT (DM)      PDP-10          D       O       D       O       O
 8    SDC           IBM-360/67     #D      #D      #D      #D      #D
 9    HARVARD       PDP-10          O       D       O       D       T
10    LINCOLN LAB   IBM-360/67      H       D       H       H       H
74    LINCOLN LAB   TX2             D       D       D       H       D
11    STANFORD      PDP-10          D       D       D       D       D
14    CARNAGIE      PDP-10          D       D       D       D       D

*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 NETJRS. We are assuming that initial connection to the NETRJS logger indicates that NETJRS is also functioning.

# These sites advertise that they may not have their systems available at these times.

                                                              [Page 4]
                                                       "STATUS OR


 1    UCLA          SIGMA-7     Server                 Jon Postel
65    UCLA          IBM-360/91  Remote Job Service
                                now, Telnet in April   Bob Braden
 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)   PDP-10      Server                 Dan Murphy

*133 BBN (TENEX-B) PDP-10 Server (Experimental) 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 January '72 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       TX2         "Soon"                 Tom Barkalow
11    STANFORD      PDP-10      "Soon"                 Andy Moorer

*12 ILLINOIS PDP-11 User Only John Cravits *13 CASE PDP-10 March '72 Charles Rose

14    CARNEGIE      PDP-10      January '72            Hal VanZoeren


                     (B6500)    September '62          John McConnel

*16 AMES IBM-360/67 Januray '72 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

                    (Prototype) User only

*Host not included in daily testing.

     [ This RFC was put into machine readable form for entry ]
        [ into the online RFC archives by Daniel Lang 4/97]
                                                              [Page 5]
/data/webs/external/dokuwiki/data/pages/rfc/rfc287.txt · Last modified: 1997/04/29 21:02 (external edit)