RFC 267
Network Host Status
RFC 267 π Network Status, November 1971
Okay bestie, so this is RFC 267 from the Network Working Group π. Ellen Westheimer of BBN wrote it on 22 November 1971 (NIC #7815). It's filed under Categories: F, G.3. It updates RFC #266 β¨, and it obsoletes None, so nothing gets replaced here π«Ά.
This RFC reports on the status of most Network Hosts from November 8 to November 19. On November 18, though, the BBN prototype Terminal IMP (Network Address 158) was inaccessible because of hardware debugging π§.
Who's Sitting Out Daily Testing πΈ
Several Hosts are currently excluded from the daily testing, and they fall into two groups π :
- Hosts that aren't expected to be working on the Network as servers (available for use from other sites) for at least two weeks. These are:
Network
Address Site Computer
71 Rand PDP-10
74 Lincoln TX2
13 Case PDP-10
14 Carnegie PDP-10
15 Ames B6500
16 Ames IBM-360/67
- Hosts that are currently meant to be users only π. This group includes the Terminal IMPs that are presently on the Network (AMES, MITRE, and BBN*). It also includes the Network Control Center Computer (Network Address 5), which is used solely for gathering statistics from the Network. Finally, these Hosts are in here too:
Network
Address Site Computer
7 Rand IBM-360/65
73 Harvard PDP-1
12 Illinois PDP-11
During these two weeks, the Lincoln Labs TX2 Hosts became a Network User π. The SDC IBM 360/67 is now a server β¨.
The tables on the next two pages sum up the Host status for this period π.
- The BBN Terminal IMP (Network Address 158) is a prototype, so it's frequently not connected to the Network. It's being used to refine and debug the Terminal IMP programs π§.
The Big Host Status Table π
NETWORK STATUS or STATUS or
ADDRESS SITE COMPUTER PREDUCTION PREDUCTION
OBTAINED FROM
1 UCLA SIGMA-7 Server Jon Postel
5 UCLA IBM-360/91 Remote Job Service
now, Telnet in
April Bob Braden
2 SRI
(NIC) PDP-10 Server John Melvin
66 SRI
(AI) PDP-10 "Soon" 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
(DM) PDP-10 Server Bob Bressler
*7 RAND IBM-360/65 User only Eric Harslem
*71 RAND PDP-10 January '72 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
20 LINCOLN IBM-360/67 "Soon" Joel Winnet
*74 LINCOLN TX2 December Tom Barkalow
11 STANFORD PDP-10 "Soon" Andy Moorer
*12 ILLINOIS PDP-11 User only John Cravits
*13 CASE PDP-10 March '72 Charles Rose
*14 CARNEGIE PDP-10 January '72 Hal vanZoeren
*15 AMES B6500 September '72 John McConnel
*16 AMES IBM-360/67 January '72 Wayne Hathaway
*144 AMES TIP User only
*145 MITRE TIP User only
*158 BBN TIP User only
(Proto-type)
* host not included in daily testing.
The Daily Testing Grid π
Here's the first week (November 8 to 12) π:
NETWORK
ADDRESS SITE COMPUTER DAY, DATE and TIME (Eastern)
M Tu W Th F
11/8 11/9 11/10 11/11 11/12
1 UCLA SIGMA-7 O D O O O
*65 UCLA IBM-360/91 O D O D O
2 SRI (NIC) PDP-10 O O O O T
66 SRI (AI) PDP-10 D D D D D
3 UCSB IBM-360/75 O T O O D
4 UTAH PDP-10 D D H D D
69 BBN (TENEX) PDP-10 H O O O O
6 MIT (Mulics) H-645 D D D O O
70 MIT (DM) PDP-10 O H T D O
8 SDC IBM-360/67 #D #D #D #D #D
9 HARVARD PDP-10 D D D D T
10 LINCOLN IBM-360/67 H H H H D
11 STANFORD PDP-10 D T D D D
And here's the second week (November 15 to 19) π¦:
M Tu W F
11/15 11/16 11/17 11/19
1 UCLA SIGMA-7 O O O O
*65 UCLA IBM-360/91 O O D O
2 SRI (NIC) PDP-10 T T O O
66 SRI (AI) PDP-10 D D D D
3 UCSB IBM-360/75 O O O O
4 UTAH PDP-10 D D D D
69 BBN (TENEX) PDP-10 O D O O
6 MIT (Mulics) H-645 T D O H
70 MIT (DM) PDP-10 O O O D
8 SDC IBM-360/67 #D #D #D #D
9 HARVARD PDP-10 T D D T
10 LINCOLN IBM-360/67 D H D D
11 STANFORD PDP-10 D D D D
Decoder Ring π
Here's what each code in the grid means:
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 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 it hasn't implemented a full server Telnet System. The BBN Terminal IMP isn't equipped to test NETRJS, so we're assuming that receiving the UCLA explanatory message means NETRJS is working too π€.
# 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 Simone Demmel 1/98 ] πΌ
π¦ where this page comes from
- ietf: rfc267 1971-11
- π girlified by claude-haiku-5-5 on : a language model's rewrite of the original, under its terms