RFC353

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Network Working Group Ellen Westheimer Request for Comments: 353 BBN NIC #10595 12 June 1972 Categories: F, G.3 Updates: RFC #344 Obsoletes: None


                      NETWORK HOST STATUS

This RFC reports on the status of most Network Hosts from May 22 to June 2.

No testing was done on Memorial Day, which Massachusetts celebrated on May 29. No testing was done on May 31 and June 1 due to an attempt to install the new IMP system.

Three new terminal IMPs were installed during this interval. On June 1, Terminal IMP #155 was installed at Fort Belvoir in Fairfax, Virginia; on June 3, Terminal IMP #154 was installed at SAAC (Seismic Array Analysis Center) in Alexandria, Virginia; and on June 5, Terminal IMP #153 was installed at NOAA (National Oceanic Analysis Agency) in Boulder, Colorado.

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.  The only Host in this category is the
   PDP-10 at Case (Network address 13).
  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, ETAC, USC, GWC, NOAA, SAAC, BELVOIR, and
   BBN*).  This category also includes the Network Control Center



___________

  • 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.





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
        23               USC                   IBM-360/44

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




















                                                    STATUS OR
SITE                                                   PREDICTIONS

ADDRESS SITE COMPUTER STATUS OR PREDICTION OBTAINED FROM

1 UCLA SIGMA-7 Server #Limited Jon Postel

 65    UCLA          IBM-360/91  NETRJS now            Bob Braden
                              (Telnet in June)

2 SRI (NIC) PDP-10 Server Jim White

 66    SRI (AI)      PDP-10      Server                Len Chaiten

3 UCSB IBM-360/75 Server Ron Stoughton 4 UTAH PDP-10 Server 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
134    MIT (AI)      PDP-10      Server                Jeff Rubin
 *7    RAND          IBM-360/65  User Only             Eric Harslem
 71    RAND          PDP-10      Server                Eric Harslem

8 SDC IBM-370/155 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       TX-2        Server                Will Kantrowitz
 11    STANFORD      PDP-10      Server                Andy Moorer
*12    ILLINOIS      PDP-11      User Only             John Cravitz
*13    CASE          PDP-10      June                  Charles Rose
 14    CARNEGIE      PDP-10      Server                Hal VanZoeren
 15    AMES          ILLIAC      Server                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
  • 148 ETAC TIP User Only
*23    USC           IBM-360/44  User Now              James Pepin
  • 151 USC TIP User Only
  • 152 GWC TIP User Only
  • 153 NOAA TIP User Only
  • 154 SAAC TIP User Only
  • 155 BELVOIR TIP User Only
  • 158 BBN TIP User Only
                  (Prototype)

_________

  • Host not included in daily testing
  1. The NMC is a research site and would like to have prior arrangement

with each user.



NO. SITE DATE AND TIME (EASTERN) --- ---- 5/22 5/23 5/24 5/25 5/26 5/30 6/2

                      1700  1800  1300  1300  1600  1430  1300
 1   UCLA-NMC           O     O     T     D     D     O     D
65   UCLA-CCN*          O     O     O     O     D     O     D
 2   SRI-ARC            O     O     O     O     O     O     O
66   SRI-AI             O     D     O     D     D     D     D
 3   UCSB-MOD75         O     O     D     O     O     O     O
 4   UTAH-10            O     O     O     O     O     D     D
69   BBN-TENEX          D     O     O     O     O     O     O

133 BBN-TENEXB O O O O #T O #D

 6   MIT-MULTICS        D     O     O     O     O     O     O
70   MIT-DMCG           O     H     O     O     O     O     O

134 MIT-AI D T D D T H H

71   RAND-CSG           D     D     D     D     O     D     O
 8   SDC-ADEPT          H     D    #D    #D     H    #D    #D
 9   HARVARD-10         O     O     O     O     O     O     O
10   L.L.-360           D     D     D     H     H     H     H
74   L.L.-TX-2          O     O    #D     D     D     O     O
11   STANFORD-AI        O     O     O     H     O     D     D
14   CMU-10             D     O     D     O     O     O     O
15   AMES-ILLIAC        T     T     T     T     T     T     T
16   AMES-67            D     T     D     D     D     D     D

where D = Dead (Destination Host either dead or inaccessible [due to

   network partitioning or local IMP failure] from the BBN Terminal
   IMP.)

F = Full (Destination Host opened a connection, informed user that

   all Network ports were in use, and immediately closed the
   connection.)

H = 1/2 Open (Destination Host opened a connection but then either

   immediately closed it, or did not respond any further.)

O = Open (Destination opened a connection and was accessible to us. 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.

  1. 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 Bob German 10/99 ]