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RFC 0267

Network Working Group                                 Ellen Westheimer
RFC #267                                              BBN
NIC #7815                                             22 November 1971
Categories:  F, G.3
Updates: RFC #266
Obsoletes  None

      This RFC reports on the status of most Network Hosts from November
8  to  November 19.  On November 18, however, the BBN prototype Terminal
IMP (Network Address 158) was inaccessible due to hardware debugging.

      Several Hosts are  currently  excluded  fron  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) for at least two weeks.  Included here

          Address        Site             Computer

            71           Rand             PDP-10
            74           Lincoln          TX2
            13           Case             PDP-10
            14           Carnegie         PDP-10
            15           Ames             B6500
            16           Ames             IBM-360/67

      2)  Hosts which are curently intended to be users only.
          Included here are the Terminal IMPs, which are
          presently in the Network (AMES, MITRE, 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:

          Address        Site             Computer

             7           Rand             IBM-360/65
            73           Harvard          PDP-1
            12           Illinois         PDP-11

      During these two weeks the Lincoln Labs TX2 Hosts became a Network
User.  The SDC IBM 360/67 is now a server.

                                                                [Page 1]

The tables on the next two pages summarize the information on 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. NETWORK STATUS or STATUS or ADDRESS SITE COMPUTER PREDUCTION PREDUCTION OBTAINED FROM 1 UCLA SIGMA-7 Server Jon Postel 5 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 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 20 LINCOLN IBM-360/67 "Soon" Joel Winnet *74 LINCOLN TX2 December 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 *15 AMES B6500 September '72 John McConnel *16 AMES IBM-360/67 January '72 Wayne Hathaway *144 AMES TIP User only *145 MITRE TIP User only *158 BBN TIP User only (Proto-type) * host not included in daily testing. [Page 2]

NETWORK ADDRESS SITE COMPUTER DAY, DATE and TIME (Eastern) M Tu W Th F 11/8 11/9 11/10 11/11 11/12 1 UCLA SIGMA-7 O D O O O *65 UCLA IBM-360/91 O D O D O 2 SRI (NIC) PDP-10 O O O O T 66 SRI (AI) PDP-10 D D D D D 3 UCSB IBM-360/75 O T O O D 4 UTAH PDP-10 D D H D D 69 BBN (TENEX) PDP-10 H O O O O 6 MIT (Mulics) H-645 D D D O O 70 MIT (DM) PDP-10 O H T D O 8 SDC IBM-360/67 #D #D #D #D #D 9 HARVARD PDP-10 D D D D T 10 LINCOLN IBM-360/67 H H H H D 11 STANFORD PDP-10 D T D D D M Tu W F 11/15 11/16 11/17 11/19 1 UCLA SIGMA-7 O O O O *65 UCLA IBM-360/91 O O D O 2 SRI (NIC) PDP-10 T T O O 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 (TENEX) PDP-10 O D O O 6 MIT (Mulics) H-645 T D O H 70 MIT (DM) PDP-10 O O O D 8 SDC IBM-360/67 #D #D #D #D 9 HARVARD PDP-10 T D D T 10 LINCOLN IBM-360/67 D H D D 11 STANFORD PDP-10 D D D D [Page 3]

where D = Dead (Destination Host either dead or inaccessible [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.) H = 1/2 Open (Destination Host opened a connection but then either immediately closed it, or did not respond further.) O = Open (Destination Host opened a connection and was accessible to users.) * The UCLA IBM-360/91 currently has Remote Job Service (NETRJS), but has not implemented a full server Telnet System. The BBN Terminal IMP is not equipped to test NETRJS; however, we are assuming that receipt of the UCLA explanatory message indicates that NETRJS is also functioning. # 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 Simone Demmel 1/98 ] [Page 4]

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