Network Working Group Ellen Westheimer
NIC # 11118 BBN
RFC # 376 8 August 1972
Categories: F, G.3
Updates: RFC #370
NETWORK HOST STATUS
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
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.
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 publica-
tion 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.
D = Dead (Destination Host either dead or inaccessible [due to
network partitioning or local IMP failure] from the BBN Terminal
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.)
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 ]