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Network Working Group NIC # 11118 RFC # 376 Categories: F, G.3 Updates: RFC #370 Obsoletes: None NETWORK HOST STATUS

Ellen Westheimer BBN 8 August 1972

This RFC reports on the status of most Network Hosts from July 31 to August 4. 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 ------7 73 138 12 19 23

Site ---Rand Harvard Lincoln Illinois NBS USC

Computer -------IBM-360/65 PDP-1 TSP PDP-11 PDP-11 IBM-360/44

The tables on the next two pages summarize the Host status for this period. NOTE: Ellen Westheimer left BBN to return to school on August 4. We therefore will discontinue the publication of these summaries. It is my understanding that UCLA-NMC is considering the publication of similar, although more detailed, survey data in the near future; I hope that data will serve in lieu of these reports. In addition, of course, MIT-DMCG has had survey information available on line for some time (see RFC #308, NIC 9259.) - Alex McKenzie _______________ *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.

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ADDRESS ------1 65 2 66 3 4 *5 69 133 6 70 134 198 *7 71 8 9 *73 10 74 *138 11 12 13 14 15 16 *144 *145 *146 *19 *147 *148 *23

SITE ---UCLA UCLA SRI (NIC) SRI (AI) UCSB UTAH BBN (NCC) BBN (TENEX-A) BBN (TENEX-B) MIT (Multics) MIT (DM) MIT (AI) MIT (ML) RAND RAND SDC HARVARD HARVARD LINCOLN LINCOLN LINCOLN STANFORD ILLINOIS CASE CARNEGIE AMES AMES AMES MITRE RADC NBS NBS ETAC USC

COMPUTER -------SIGMA-7 IBM-360/91 PDP-10 PDP-10 IBM-360/75 PDP-10 DDP-516 PDP-10 PDP-10 H-645 PDP-10 PDP-10 PDP-10 IBM-360/65 PDP-10 IBM-370/155 PDP-10 PDP-1 IBM-360/67 TX-2 TSP PDP-10 PDP-11 PDP-10 PDP-10 ILLIAC (PDP-10) IBM-360/67 TIP TIP TIP PDP-11 TIP TIP IBM-360/44

STATUS OR PREDICTION -------------------Sever #Limited NETRJS now (Telnet in June) Server Server Server Server Never Server Server(Exper.) Server Server Server Server User Only Server Server Server User Only "Soon" Server User Only Server User Only July Server Server "Soon" User Only User Only User Only User Only User Only User Only User Now

STATUS OR PREDICTIONS OBTAINED FROM ------------Jon Postel Bob Braden Jim White Len Chaiten Ron Stoughton Barry Wessler Alex McKenzie Dan Murphy Dan Murphy Mike Padlipsky Bob Bressler Jeff Rubin Jeff Rubin Eric Harslem Eric Harslem Bob Long Bob Sundberg Bob Sundberg Joel Winett Will Kantrowitz Tom Barkelow Andy Moorer John Cravits Charles Rose Hal VanZoeren John McConnell Wayne Hathaway

Robert Rosenthal

James Pepin

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*151 *152 *153 *154 *156 *158

USC GWC NOAA SAAC ARPA BBN

TIP TIP TIP TIP TIP TIP (Prototype)

User User User User User User

Only Only Only Only Only Only

_______________ *Host not included in daily testing. #The NMC is a research site and would like to have a prior arrangement with each user.

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NO. ---

SITE ----

1 65 2 66 3 4 69 133 6 70 134 194 71 8 9 10 74 11 13 14 15 16 where

UCLA-NMC UCLA-CNN* SRI-ARC SRI-AI UCSB-MOD75 UTAH-10 BBN-TENEX BBN-TENEXB MIT-MULTICS MIT-DMCG MIT-AI MIT-ML RAND-CSG SDC-ADEPT HARVARD-10 L.L.-360 L.L.-TX-2 STANFORD-AI CASE CMU-10 AMES-ILLIAC AMES-67

DATE AND TIME (EASTERN) ----------------------7/31 8/1 8/2 8/3 1400 1830 1330 1500 H O O O O O O O O O O O D D O T O O O O O O O O O T T O #D #T #T #T O T O O O H O O O H O O O H T O D O O O #D D #D #D O O O D H T H H O O O R H H H H D D D D O O O D D T D D D H D D

8/4 1330 O O O O O O R #D O O O O O #D O R O T D O D D

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.)

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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. #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 BBN Corp. under the ] [ direction of Alex McKenzie. 1/97 ]

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