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This is a modified version of the Internet RFC suitable for machine-translating. Original version is available here: RFC235

Obsoleted by: 240

Network Working Group                                      E. Westheimer
Request for Comments: 235                                            BBN
NIC: 7652                                             September 27, 1971
Obsoletes: None
Updates: None


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 not 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
             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*). 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: Network Site Computer Address
Westheimer                                                      [Page 1]

RFC 235                       Site Status                 September 1971

7 Rand IBM-360
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.

________________ * 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.

Westheimer                                                      [Page 2]

RFC 235                       Site Status                 September 1971

1 UCLA SIGMA-7 Server John Postel
65 UCLA IBM-360 Remote Job Service now,
Time-sharing in January Steve Wolf
2 SRI(NIC) PDP-10 October11 John Melvin
66 SRI(AI) PDP-10 November Len Chaiten
3 UCSB IBM-360 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-465 Soon Mike Padlipsky
70 MIT(DM) PDP-10 Server Bob Bressler
7 RAND IBM-360 User only Eric Harslem
71 RAND PDP-10 January Eric Harslem
8 SDC IBM-360 October 11 Bob Long
9 HARVARD PDP-10 Soon Bob Sundberg
73 HARVARD PDP-1 User only Bob Sundberg
10 LINCOLN IBM-360 Soon Joel Winnet
74 LINCOLN TX2 Uncertain Tom Barklow
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 Van Zoeren
15 PAOLI B6500 Uncertain John Cravits
16 AMES DDP-316 Terminal IMP Does not apply
17 MITRE DDP-316 Terminal IMP Does not apply
30 BBN DDP-316 Terminal IMP(Prototype) Does not apply
Westheimer                                                      [Page 3]

RFC 235                       Site Status                 September 1971
4:30 3:30 6:00 10:30 1:30
1 UCLA SIGMA 7 0 0 0 D D *65 UCLA PDP-10 0 0 0 0 0 2 SRI(NIC) PDP-10 D D D D D 66 SRI(AI) PDP-10 D D D D D 3 UCSB IBM-360 0 0 0 0 0
   4     UTAH         PDP-10         D     D     D      D     D
   69    BBN          PDP-10         0   1/2 0   0      T   1/2 0
   6     MIT(Multics) DDP-645        R     R     R      D   1/2 0
   70    MIT(DM)      PDP-10         T     T     T      O     0
   8     SDC          IBM-360        D     D     D      D     T
   9     HARVARD      PDP-10         T     D     T      T     T
10 LINCOLN IBM-360 D 1/2 0 1/2 0 D T

12:30 4:30 3:30 2:00 5:00
   1     UCLA         SIGMA  7        D     0     D     T     0
   *65   UCLA         PDP-10          D     0     0     0     0
   2     SRI(NIC)     PDP-10          D     D     0     D     D
   66    SRI(AI)      PDP-10          D     D     D     D     D
   3     UCSB         IBM-360         0     0     0     0     0
   4     UTAH         PDP-10          D     D     D     D     D
   69    BBN          PDP-10          0   1/2 0   0   1/2 0   0
   6     MIT(Multics) DDP-645         D   1/2 0   T     T     R
   70    MIT(DM)      PDP-10          T   1/2 0   0     D     TD
   8     SDC          IBM-360         D     D     D     D     D
   9     HARVARD      PDP-10          T     D     T     D     D
   10    LINCOLN      IBM-360         D     D     D   1/2 0   D


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 responding any way to the initial RFC, although not dead.)

1/2 0 = 1/2 Open. (Destination Host opened a connection but then either immediately closed it, or did not respond any further.) 0 = Open. (Destination Host opened a connection and was accessible to users.
Westheimer                                                      [Page 4]

RFC 235                       Site Status                 September 1971

* 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 Kelly Tardif, Viagénie 10/99]

Westheimer [Page 5]

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