Network Working Group                                           M. Kampe
Request for Comments: 162                                       UCLA-NMC
NIC #6774                                               Computer Science
Categories: C.2, C.3, D.1, D.2, D.3                          22 May 1971
Updates: None
Obsoletes: None


                             NETBUGGER3

  NETBUGGER3 is a third level program for the debugging of second and
  third level programs, experimentation with and simulation of third
  level protocols.

  We were writing an RJE FILENET to interact with UCLA-CCN, and
  discovered that they (UCLA-CCN) wouldn't be up for a few months.  We
  needed a program that would simulate CCN, so that we could interact
  with it and debug our FILENET.  It occurred to me that all over the
  network, people had similar problems, i.e., they couldn't debug
  programs because the intended server wasn't up.  And so I started to
  write a third level debugger-simulater.

  With NETBUGGER3 the user can easily issue RTSs, STRs, and LISTENs,
  interrogate the status of connections, receive and display NCP-USER
  events and transmit and receive data over as many as twelve
  connections (per copy of program running).  Received data can be
  displayed in ASCII, EBCDIC on HEX.  The user can, of course,
  originate data for transmission in the same forms.  NETBUGGER3 can be
  initiator, receiver and/or intermediate in connections.

  An example of how NETBUGGER3 could be of use to other hosts on the
  Net follows.

  Host X has a special third level Filenet to debug.  The host they
  plan to interact with won't be up for several months.  Host X can
  arrange with us to interact with NETBUGGER3, which will simulate the
  proposed third level protocol and transactions.

  An alternate possibility is for Host X to use his Telnet to enter our
  system and start NETBUGGER3 himself.  He can then be running
  NETBUGGER3 on one console and his filenet on another.

  An alternate possibility is for Host X to use his Telnet to enter our
  system and start NETBUGGER3 himself.  He can then be running
  NETBUGGER3 on one console and his filenet on another.






Kampe                                                           [Page 1]

RFC 162                        NETBUGGER3                       May 1971


  Then, later on when the other server Host is up, NETBUGGER3 can be
  used an intermediate between Host X and his serving host.  Every
  message from Host X to server and vice versa can be displayed,
  examined and, if necessary, edited as it passes through the
  NETBUGGER3 console, thus making possible the debugging and
  measurements.

  This is only one example.  If you are interested in using, receiving,
  documentation, making suggestions or anything else regarding
  NETBUGGER3, please contact the Network liaison at UCLA - NMC.


      [ This RFC was put into machine readable form for entry ]
      [ into the online RFC archives by Alison De La Cruz 12/00]





































Kampe                                                           [Page 2]