Status of network hosts (RFC0255)
Original Publication Date: 1971-Oct-01
Included in the Prior Art Database: 2019-Feb-13
Internet Society Requests For Comment (RFCs)
Network Working Group Ellen Wentheimer Request for Comments: 255 Bolt, Beranek and Newman Updates: 252 October 26, 1971 NIC: 7696
This RFC reports on the status of most Network Hosts from October 12 to October 22. (Monday, October 11 was Columbus Day.) During these two weeks, the general status of these Hosts remained as it had been previously.
The table on the following page summarizes the daily information on Host status for this period.
NETWORK SITE COMPUTER DAY, DATE AND TIME (Eastern) ADDRESS T W TH F M 10/12 10/13 10/14 10/15 10/18 1530 1600 1600 1700 1730 1 UCLA SIGMA-7 O O O O O 65 UCLA IBM-360/91 O O O O O 2 SRI(NIC) PDP-10 O O #T O O 66 SRI(AI) PDP-10 D D D D D 3 UCSB IBM-360/75 O O O O O 4 UTAH PDP-10 T D T D D 69 BBN(TENEX) PDP-10 D D O O D 6 MIT(Multics) H-645 O D R T T 70 MIT(DM) PDP-10 T D T T D 8 SDC IBM-360-67 D D D D D 9 HARVARD PDP-10 O D D D D 10 LINCOLN IBM-360-67 D D D H D
NETWORK SITE COMPUTER DAY, DATE AND TIME (Eastern) ADDRESS T W TH F 10/19 10/20 10/21 10/22 1630 1230 1330 1430 1 UCLA SIGMA-7 O O O O 65 UCLA IBM-360/91 O O O O 2 SRI(NIC) PDP-10 T O O O 66 SRI(AI) PDP-10 D D D D 3 UCSB IBM-360/75 O O D O 4 UTAH PDP-10 T D T D 69 BBN(TENEX) PDP-10 D O O O 6 MIT(Multics) H-645 T D D O 70 MIT(DM) PDP-10 D H H H 8 SDC IBM-360-67 D D D D 9 HARVARD PDP-10 D D D D 10 LINCOLN IBM-360-67 D H T H
Wentheimer [Page 1]
RFC 255 October 1971
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 = Opened (Destination Host opened a connection and was accessible to user.)
* The UCLA IMB-360/91 currently has Remote Job Service (NETRJS), but has not implemented a full server Telnet System. The BBN Terminal IMP is not eq...