Network Working Group E. Wentheimer
Request for Comments:
252 Bolt, Beranek and Newman
Category: F, G.3 8 October 1971
NIC:
7696 The purpose of this RFC is to report on the recent status of most
Network Hosts. During September 27 through September 29 the BBN
prototype Terminal IMP (Network Address 158) was inaccessible due to
hardware debugging. The Network was, therefore, not examined on
these days.
Three Hosts which were not officially able to act as Server's at the
time of RFC #240 are now able to do so. These Hosts are:
NETWORK SITE COMPUTER
ADDRESS
2 SRI (NIC) PDF-10
6 MIT (Multics) H-645
9 HARVARD PDP-10
The Harvard PDP-10, however, has limited core space. They will,
therefore, run the Telnet program only occasionally.
The following two tables summarize the information on the Host status
for September 30 - October 8.
NETWORK SITE COMPUTER DAY, DATE AND TIME (Eastern)
ADDRESS TH F M Tu W Th F
9/30 10/1 10/4 10/5 10/6 10/7 10/8
1100 1753 1200 1600 1100 1300 1530
1 UCLA SIGMA-7 O T D O #D O O
*65 UCLA IBM-360/91 O O D O D O O
2 SRI(NIC) PDP-10 O #D T #T O T #D
66 SRI(AI) PDP-10 D D D D D D D
3 UCSB IBM-360/75 D O O O O O O
4 UTAH PDP-10 D D D D D D D
69 BBN(TENEX) PDP-10 T T O O O D D
6 MIT(Multics)H-645 O O D T D T T
70 MIT(DM) PDP-10 D H D T D T T
8 SDC IBM-360 D D D D D D D
9 HARVARD PDP-10 T D T D D T T
10 LINCOLN IBM-360 H H H H D T D
where
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.)
0 = 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 equipped to test NETRJS however, we are
assuming that receipt of the UCLA explanatory message indicates
that NETRJS is also functioning.
# These sites advertise that they may not have their system
available # at these times.