RFC 288
Network host status
NETWORK HOST STATUS ✨
Okay bestie, let's start with the title block 🎀. This is RFC 288 (NIC 8274) from the Network Working Group, written by E. Westheimer at BBN and dated January 6, 1972. It obsoletes nothing and it updates RFC 287 🦋.
This RFC reports on the status of most Network Hosts from December 20 to December 30. (On December 24 and December 31 BBN celebrated Christmas and New Year's Day respectively 🎄🎆.)
During those two weeks the Lincoln Labs TX2 (Network Address 112) became a server 🖥️💜.
Several Hosts are currently excluded from the daily testing 🙈. They fall into two categories.
Category 1: Not Really Servers Yet
The first category is Hosts that aren't expected to be working on the Network as servers (available for use from other sites) on a regular basis for at least two weeks 😭. The ones here are:
NETWORK SITE COMPUTER
ADDRESS
133 BBN PDP-10 (B)
15 Case PDP-10
13 Ames/(Paoli) ILLIAC/(B6500)Category 2: User-Only Hosts
The second category is Hosts that are currently meant to be users only 💅. This includes the Terminal IMPs, which are in the Network right now (AMES, MITRE, NBS and BBN*). It also covers the Network Control Center Computer (Network Address 5), which is used solely for gathering statistics from the Network 📊. And finally, these Hosts are in here too:
NETWORK SITE COMPUTER
ADDRESS
7 Rand IBM-360/65
73 Harvard PDP-1
12 Illinois PDP-11
19 NBS PDP-11* The BBN Terminal IMP (Network Address 158) is a prototype, so it's often not connected to the Network 🧪. It's being used to refine and debug the Terminal IMP programs instead 🔧.
The tables on the next two pages summarize the Host status for this period 📋✨.
The Big Status Table
Here's the full lineup, sorted by address, with who gave us the info 💖:
STATUS OR
NETWORK SITE COMPUTER STATUS OR PREDICTIONS
ADDRESS PREDICTION OBTAINED FROM
1 UCLA SIGMA-7 Server John Postel
65 UCLA IBM-360/91 Remote Job Service 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
4 UTAH PDP-10 SOON Barry Wessler
*5 BBN(NCC) DDP-516 Never Alex McKenzie
69 BBN(TENEX-A) PDP-10 Server Dan Murphy
*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 Winnet
74 LINCOLN TX-2 Server Tom Barkalow
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
5 AMES/(PAOLI) ILLIAC September John McConnell
(B6500)
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 User only
(Prototype)* Host not included in daily testing. 🙈
The Daily Testing Grids 🗓️
There are two grids for the daily checks. The first one covers 12/20 through 12/23, and every row is a Host and every column is a time (Eastern) 🕐.
ADDRESS SITE COMPUTER DATE AND TIME (EASTERN)
NETWORK 12/20 12/21 12/22 12/23
1700 1200 1400 1700
1 UCLA SIGMA-7 O #D O O
65* UCLA IBM-360/91 O O D D
2 SRI(NIC) PDP-10 D O D D
66 SRI(AI) PDP-10 D D D D
3 UCSB IBM-360/75 T D D T
4 UTAH PDP-10 O O D D
69 BBN PDP-10 H O D O
6 MIT(Multics) H-645 D D D T
70 MIT(DM) PDP-10 O O H O
71 RAND PDP-10 D D D D
8 SDC IBM-360/67 #D #D #D #D
9 HARVARD PDP-10 D T D D
10 LINCOLN LAB IBM-360/67 H H H D
74 LINCOLN LAB TX2 H H #D T
11 STANFORD PDP-10 D D D D
14 CARNEGIE PDP-10 D D D D
16 AMES IBM-360/67 D D D DThe second grid covers 12/27 through 12/30 📆.
ADDRESS SITE COMPUTER DATE AND TIME (EASTERN)
NETWORK 12/27 12/28 12/29 12/30
1730 1300 1600 1400
1 UCLA SIGMA-7 T #D O O
65* UCLA IBM-360/91 O O O O
2 SRI(NIC) PDP-10 D D D D
66 SRI(AI) PDP-10 D D D O
3 UCSB IBM-360/75 D D D D
4 UTAH PDP-10 D D D D
69 BBN PDP-10 O O O H
6 MIT(Multics) H-645 O O O O
70 MIT(DM) PDP-10 O D O D
71 RAND PDP-10 D D D D
8 SDC IBM-360/67 H #D #D #D
9 HARVARD PDP-10 T T D T
10 LINCOLN LAB IBM-360/67 D H T T
74 LINCOLN LAB TX2 D D #D H
11 STANFORD PDP-10 D D D D
14 CARNEGIE PDP-10 D D D D
16 AMES IBM-360/67 D D D DDecoding the Codes 🔍
Here's what the letters in the grids mean, bestie 💜:
D= Dead. The Destination Host is either dead or inaccessible (due to network partitioning or local IMP failure) from the BBN Terminal IMP. 💀H= 1/2 Open. The Destination Host opened a connection but then either immediately closed it, or didn't respond any further. 🌗O= Open. The Destination Host opened a connection and was accessible to users. 🦋R= Refused. The Destination Host returned a CLS to the initial RFC. 🙅T= Timed out. The Destination Host did not complete the ICP and open a connection within 60 second. ⏰
* The only service currently offered by the UCLA IBM-360/91 is a Network Job Service (NETRJS). The BBN Terminal IMP isn't equipped to test NETRJS, though. So we're assuming that the initial connection to the NETRJS logger means 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 Kelly Tardif, Viagÿnie 10/99]
📦 where this page comes from
- ietf: rfc288 1972-01
- 💖 girlified by claude-haiku-5-5 on : a language model's rewrite of the original, under its terms