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Network host status (RFC0298)

IP.com Disclosure Number: IPCOM000004885D
Original Publication Date: 1972-Feb-11
Included in the Prior Art Database: 2001-Jul-11
Document File: 5 page(s) / 9K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

E. Westheimer: AUTHOR

Abstract

This RFC reports on the status of most Network Hosts from January 17 to January 28.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 59% of the total text.

Network Working Group E. Westheimer Request for Comments: 298 1 February 1972 NIC: 8486

NETWORK HOST STATUS

This RFC reports on the status of most Network Hosts from January 17 to January 28.

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 SITE COMPUTER ADDRESS

133 BBN PDP-10(B) 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 (Network Address 5) which is used solely for gathering statistics from the Network. Finally, included among these Hosts are the following:

NETWORK SITE COMPUTER ADDRESS

7 Rand IBM-360/65 73 Harvard PDP-1 12 Illinois PDP-11 19 NBS PDP-11

NOTE: During this interval both the UTAH PDP-10 and the RAND PDP-10

became Network servers.

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

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.

Westheimer [Page 1]

RFC 298 NETWORK HOST STATUS February 1972

ADDRESS SITE COMPUTER DATE AND TIME (EASTERN) 1/17 1/18 1/19 1/20 1/21 1800 1730 1000 1500 1730

1 UCLA(NMC) SIGMA-7 #H O #D O O 65 UCLA(CCN) IBM-360/91 O O #D O O

2 SRI(NIC) PDP-10 O O O O O 66 SRI(AI) PDP-10 D D D D D 3 UCSB IBM-360/75 O O O D O

4 UTAH PDP-10 T T #T O O 69 BBN(10X-A) PDP-10 O O D O D

6 MIT(Multics) H-645 O T O D O 70 MIT(DM) PDP-10 D D O O D 71 RAND PDP-10 D D O D D 8 SDC IBM-360/155 #D #D #D #D #D

9 HARVARD PDP-10 O #D O #D #D 10 LINCOLN LABS IBM-360/67 D H T H H 74 LINCOLN LABS TX2 #D #T #D R O 11 STANFORD PDP-10 D D D D D 14 CARNEGIE PDP-10 H H H H H 16 AMES IBM-360/67 D D D D D

ADDRESS SITE COMPUTER DATE AND TIME (EASTERN) 1/24 1/25 1/26 1/27 1/28 1430 1630 1730 1300 1530

1 UCLA(NMC) SIGMA-7 O O O O T 65 UCLA(CCN) IBM-360/91 O O O O O

2 SRI(NIC) PDP-10 O O T O O 66 SRI(AI) PDP-10 D D D D D 3 UCSB IBM-360/75 O O D O O

4 UTAH PDP-10 O O O O O 69 BBN(10X-A) PDP-10 O D O H O

6 MIT(Multics) H-645 R O D O D 70 MIT(DM) PDP-10 O D T O H 71 RAND PDP-10 T D D O D 8 SDC IBM-360/155 #D #D #D #D #D

9 HARVARD PDP-10 #R #R O O O 10 LINCOLN LABS IBM-360/67 H D H T H 74 LINCOLN LABS TX2 O O O O T 11 STANFORD PDP-10 D D D D D 14 CARNEGIE PDP-10 D H H D H 16 AMES IBM-360/67 D D D D D

Westheimer [Page 2]

RFC 298 NETWORK HOST STATUS February 1972

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 (Destin...