Network Working Group E. Westheimer
RFC #252 Bolt Beranek and Newman
NIC #7693 8 October 1971
Categories: F, G.3
Updates: RFC 240
Obsoletes: None
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 in-accessible 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
ADDRESS SITE COMPUTER
------- ---- --------
2 SRI (NIC) PDP-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.
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NETWORK
ADDRESS SITE COMPUTER DAY, DATE and TIME (Eastern)
------- ---- -------- ----------------------------------
Th F M Tu W Th F
9/30 10/1 10/4 10/5 10/6 10/7 10/8
1100 1530 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 D
70 MIT (DM) PDP-10 D H D T D T T
8 SDC IBM-360/67 D D D D D D D
9 HARVARD PDP-10 T D T D D T T
10 LINCOLN IBM-360/67 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.)
O = Open. (Destination Host opened a connection and was accessible to users.)
* The UCLA IBM-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 time.
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"STATUS or
NETWORK PREDICTIONS"
ADDRESS SITE COMPUTER STATUS or PREDICTION OBTAINED FROM
------- ---- -------- -------------------- -------------
1 UCLA SIGMA-7 Sever Jon Postel
65 UCLA IBM-360/91 Remote Job Service now, Bob Braden
Telnet in April
2 SRI (NIC) PDP-10 Server John Melvin
66 SRI (AI) PDP-10 November Len Chaiten
3 UCSB IBM-360/75 Server Jim White
4 UTAH PDP-10 "Soon" Barry Wessler
5 BBN (NCC) DDP-516 Never Alex McKenzie
69 BBN (TENEX) PDP-10 Server Dan Murphy
6 MIT (Multics) H-645 Server Mike Padlipsky
70 MIT (TENEX) PDP-10 Server Bob Bressler
7 RAND IBM-360/65 User Only Eric Harslem
71 RAND PDP-10 January Eric Harslem
8 SDC IBM-360/67 "Soon" Bob Long
9 HARVARD PDP-10 Server Bob Sundberg
73 HARVARD PDP-1 User only Bob Sundberg
10 LINCOLN IBM-360/67 "Soon" Joel Winnet
74 LINCOLN TX2 Uncertain Tom Barkalow
11 STANFORD PDP-10 November Andy Moorer
12 ILLINOIS PDP-11 User Only John Cravits
13 CASE PDP-10 December 15 Charles Rose
14 CARNEGIE PDP-10 January Hal VanZoeren
15 PAOLI B6500 Uncertain John Cravits
144 AMES TIP User Only
145 MITRE TIP User Only
158 BBN (TIP) Prototype User Only
TIP
[ This RFC was put into machine readable form for entry ]
[ into the online RFC archives by BBN Corp. under the ]
[ direction of Alex McKenzie. 12/96 ]
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