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Network host status (RFC0367) Disclosure Number: IPCOM000004895D
Original Publication Date: 1972-Jul-19
Included in the Prior Art Database: 2001-Jul-11
Document File: 8 page(s) / 8K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

E. Westheimer: AUTHOR


This RFC reports on the status of most Network Hosts from July 3 to July 14.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 58% of the total text.

Network Working Group Ellen Westheimer Request for Comments: 367 BBN NIC #11014 19 July 1972 Category: F, G.3 Updates: 366 Obsoletes: None


This RFC reports on the status of most Network Hosts from July 3 to July 14.

No testing was done on July 4 as BBN took a holiday to celebrate Independence Day. No testing was done on July 11 and 12 as I was on vacation.

Several Hosts are currently excluded from the daily testing as they are presently intended to be users only. Included here are the Terminal IMPs, which are presently in the Network (AMES, MITRE, RADC, NBS, ETAC, USC, GWC, NOAA, SAAC, ARPA, 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 Address Site Computer 7 Rand IBM-360/65 73 Harvard PDP-1 138 Lincoln TSP 12 Illinois PDP-11 19 NBS PDP-11 23 USC IBM-360/44

The tables on the next two pages summarize the 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.

Westheimer [Page 1]


NO. SITE DATE AND TIME (EASTERN) 7/3 7/5 7/6 7/7 7/12 7/13 7/14

1730 1200 1700 1630 1600 1700 1400 1 UCLA-NMC O H H O O O O 65 UCLA-CCN* D #D O O O O O 2 SRI-ARC O D D O O O O 66 SRI-AI D #D O O O D O 3 UCSB-MOD75 D O O O O O D 4 UTAH-10 D O O O O O D 69 BBN-TENEX H O O O O O F 133 BBN-TENEXB #D #D #D #D #D #D #D 6 MIT-MULTICS O O O O O O O 70 MIT-DMCG O O O O O F H 134 MIT-AI O O O O O O O 194 MIT-ML H O O O O O O 71 RAND-CSG D O O O O O O 8 SDC-ADEPT D #D D D #D D #D 9 HARVARD-10 O #D #D O O #D O 10 L.L.-360 D H H H H D H 74 L.L.-TX-2 #D O O O O O D 11 STANFORD-AI O O R O O O O 13 CASE D D D D D D D 14 CMU-10 O D O D D O D 15 AMES-ILLIAC D D D D O O D 16 AMES-67 D D D D D D D

where D Dead (Destination Host either dead or inaccessible [due to network

partitioning or local IMP failure] from the BBN Terminal IMP.) F Full (Destination Host opened a connection, informed user that all

Network ports were in use, and immediately closed the connection.) 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.) 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.)

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