RFC293 - Network Host Status

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　　Network Working Group Ellen Westheimer
RFC#293 BBN
NIC #8303 18 January 1972
Categories: F, G.3
Updates: RFC288
Obsoletes: None

NETWORK HOST STATUS

This RFCreports on the status of most Network Hosts from January
3 to January 15.

Several Hosts are currently excluded from the daily testing.
These Hosts fall into two categories:

1) Hosts which are not expected to be functioning on the Network as
servers (available for use from other sites) on a regular basis for at
least two weeks. Included here are:

Network
Address Site Computer
------- ---- --------
133 BBN PDP-10 (B)
8* SDC IBM-370/155
13 Case PDP-10
15 Ames/(Paoli) ILLIAC-(B6500)

2) Hosts which are currently intended to be users only. Included here
are the Terminal IMPs, which are presently in the Network (AMES,
MITRE, NBS 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
12 Illinois PDP-11
19 NBS PDP-11

The tables on the next two pages summarize the Host status for
this period.
______________

[Page 1]

*The SDC site is currently replacing their IBM 360/67 by an IBM
370/155. This site therefore is temporarily without any permanent
Host on the network, and for this reason was not included in the daily
testing for the preceding two weeks.
**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.

< In the original, the tables on this and the following page were typed >
< in "landscape" format. For this online version the tables are >
< compressed horizontally to fit on a "portrait"-oriented page >

"STATUS OR
NETWORK PREDICTION"
ADDRESS SITE COMPUTER STATUS OR PREDICTION OBTAINED FROM
------- ---- -------- -------------------- -------------

1 UCLA SIGMA-7 Server 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 "Soon" Len Chaiten
3 UCSB IBM-360/75 Server Jim White
*5 BBN(NCC) DDP-516 Never Barry Wessler
69 BBN(TENEX-A) PDP-10 Server Alex McKenzie
*133 BBN(TENEX-B) PDP-10 Server(Exper.) Dan Murphy
6 MIT(Multics) H-645 Server Mike Padlipsky
70 MIT(DM) PDP-10 Server Bob Bressler
*7 RAND IBM-360/65 User Only Eric Harslem
71 RAND PDP-10 "Soon" Eric Harslem
*8 SDC IBM-360/67 Server Bob Long
9 HARVARD PDP-10 Server Bob Sundberg
*73 HARVARD PDP-1 User Only Bob Sundberg
10 LINCOLN IBM-360/67 "Soon" Joel Winett
74 LINCOLN TX2 Server Will Kantrowitz
11 STANFORD PDP-10 "Soon" Andy Moorer
*12 ILLINOIS PDP-11 User Only John Cravits
*13 CASE PDP-10 March Charles Rose
14 CARNEGIE PDP-10 "Soon" Hal VanZoeren
*15 AMES/(PAOLI) ILLIAC/(B6500) September John McConnell
16 AMES IBM-360/67 "Soon" Wayne Hathaway
*144 AMES TIP User Only
*145 MITRE TIP User Only
*19 NBS PDP-11 User Only Robert Rosenthal
*147 NBS TIP User Only
*158 BBN TIP(Prototype) User Only

* Host not included in daily testing

[Page 2]

NET
ADDR SITE COMPUTER DATE AND TIME (EASTERN)
---- ---- -------- -----------------------

1/3 1/4 1/5 1/6 1/7 1/10 1/11 1/12 1/14 1/15
1700 1330 1200 1800 0900 1730 1030 1030 1800 1000
1 UCLA(NMC) SIGMA-7 O O #D O O O O #D O O
65 UCLA(CCN) IBM-360/91 O O O D #D O O O O D
2 SRI(NIC) PDP-10 O #D O O D O O O T O
66 SRI(AI) PDP-10 D D D D D D D D D D
3 UCSB IBM-360/75 D D #D O O D D #D D D
4 UTAH PDP-10 D D #D O O D D #D D D
69 BBN(10X-A)PDP-10 O O H O O O O O D T
6 MIT(Multics)H-645 O D D D O O O D T O
70 MIT(DM) PDP-10 O O O T O O D D O T
71 RAND PDP-10 T D D T D D D D D D
9 HARVARD PDP-10 #T #D O #D D #D O T #D O
10 LL IBM-360/67 D T H D D D H D D H
74 LL TX-2 H H #D T D O H #D O O
11 STANFORD PDP-10 D D D D D D D D D D
14 CARNEGIE PDP-10 D T D D D D D D D H
16 AMES IBM-360/67 D D D D D D D D D H

where
D = Dead (Destination Host either dead or inaccessible [due to network
partitioning or local IMP failure] from the BBN Terminal IMP.)

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.

#These sites advertise that they may not have their system available at these
times.

[ This RFCwas put into machine readable form for entry ]
[ into the online RFCarchives by BBN Corp. under the ]
[ direction of Alex McKenzie. 12/96 ]

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