web100clt(1)                                                      web100clt(1)

NAME

       web100clt - NDT command line client.

SYNOPSIS

       web100clt [options] destination

DESCRIPTION

       The  Network  Diagnostic  Tester  (NDT) tool is a client/server program
       that provides network configuration and performance testing to a user's
       desktop  or laptop computer. The system is composed of a client program
       (command line or java applet) and a pair of  server  programs  (a  web-
       server and a testing/analysis engine).

       The  command  line  client  web100clt(1)  connects  directly to the NDT
       web100srv(8) testing and analysis engine. It bypasses  the  web  server
       front  end  (Note:  this  will  be  an option in a future release). The
       client communicates with the server process  to  perform  a  series  of
       tests  of  the  network  path  and the clients network configuration. A
       multi-level series of messages are displayed on the user's console.

       The command line client may share a server with other command  line  or
       Java-based  clients.  By  default,  the  server  will  handle  incoming
       requests in a FIFO manner and the server does not  distinguish  between
       command line or Java-based clients. If the NDT server administrator has
       disable FIFO processing, the web100clt program  will  terminate  grace-
       fully.

OPTIONS

       -d     Print debugging information. This option increments the internal
              debugging flag, allowing the display of run-time diagnostic mes-
              sages.   Repeated  use  of  this  option increases the amount of
              debugging information that will be  displayed.  Note:  debugging
              information prints on stderr.

       -h     Print a simple usage page and exit.

       -l     Increment  the  diagnostic  message  level. Repeated use of this
              option increases the amount  of  diagnostic  results  that  will
              appear on the screen.

       -b buffer_size
              Set  the  TCP send and receive buffer size. This option uses the
              setsockopt(2) function to set the TCP buffer size. Values larger
              than  64 Kbytes will result in large windows if the RFC1323 win-
              dow scaling option is enabled on the client host.

LIMITATIONS

       The NDT service is continuing to undergo testing and upgrading.  Better
       diagnostic  algorithms  are being developed to improve the accuracy and
       reliability of this service.

EXAMPLES

       web100clt somehost.example.com

              Run an NDT test between this host and the remote server on some-
              host.example.com.

SEE ALSO

       The http://e2epi.internet2.edu/ndt/ web site, web100srv(8), fakewww(8),
       and setsockopt(2).

ACKNOWLEDGMENTS

       This material is based, in part on work supported by the National  Sci-
       ence  Foundation  (NSF)  under  Grant  No.  ANI-0314723.  Any opinions,
       findings, conclusions or recommendations expressed in this material are
       those  of the author(s) and do not necessarily reflect the views of the
       NSF.

                         $Date: 2004/05/20 21:49:12 $             web100clt(1)