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RFC 0252

Network Working Group                           E. Westheimer
RFC #252                                        Bolt Beranek and Newman
NIC #7693                                       8 October 1971
Categories: F, G.3
Updates:  RFC 240
Obsoletes: None


     The purpose of this RFC is to report on the recent status of most
Network Hosts.  During September 27 through September 29 the BBN prototype
Terminal IMP (Network Address 158) was in-accessible due to hardware
debugging.  The Network was, therefore, not examined on these days.

     Three Hosts which were not officially able to act as Server's at the
time of RFC #240 are now able to do so.  These Hosts are:

NETWORK
ADDRESS         SITE                    COMPUTER
-------         ----                    --------

  2             SRI (NIC)               PDP-10
  6             MIT (Multics)           H-645
  9             HARVARD                 PDP-10

     The Harvard PDP-10, however, has limited core space.  They will,
therefore, run the Telnet program only occasionally.

     The following two tables summarize the information on the Host status
for September 30 - October 8.






















                                                                [Page 1]

NETWORK ADDRESS SITE COMPUTER DAY, DATE and TIME (Eastern) ------- ---- -------- ---------------------------------- Th F M Tu W Th F 9/30 10/1 10/4 10/5 10/6 10/7 10/8 1100 1530 1200 1600 1100 1300 1530 1 UCLA SIGMA-7 O T D O #D O O *65 UCLA IBM-360/91 O O D O D O O 2 SRI (NIC) PDP-10 O #D T #T O T #D 66 SRI (AI) PDP-10 D D D D D D D 3 UCSB IBM-360/75 D O O O O O O 4 UTAH PDP-10 D D D D D D D 69 BBN (TENEX) PDP-10 T T O O O D D 6 MIT (Multics) H-645 O O D T D T D 70 MIT (DM) PDP-10 D H D T D T T 8 SDC IBM-360/67 D D D D D D D 9 HARVARD PDP-10 T D T D D T T 10 LINCOLN IBM-360/67 H H H H D T D 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 any 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 time. [Page 2]

"STATUS or NETWORK PREDICTIONS" ADDRESS SITE COMPUTER STATUS or PREDICTION OBTAINED FROM ------- ---- -------- -------------------- ------------- 1 UCLA SIGMA-7 Sever Jon Postel 65 UCLA IBM-360/91 Remote Job Service now, Bob Braden Telnet in April 2 SRI (NIC) PDP-10 Server 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 (NCC) DDP-516 Never Alex McKenzie 69 BBN (TENEX) PDP-10 Server Dan Murphy 6 MIT (Multics) H-645 Server Mike Padlipsky 70 MIT (TENEX) 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 "Soon" 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 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 144 AMES TIP User Only 145 MITRE TIP User Only 158 BBN (TIP) Prototype User Only TIP [ This RFC was put into machine readable form for entry ] [ into the online RFC archives by BBN Corp. under the ] [ direction of Alex McKenzie. 12/96 ] [Page 3]



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