tping - Send echo messages to LAM nodes.


SYNTAX

       tping  [-hv]  [-c  <count>]  [-d  <delay>]  [-l  <length>]
              <nodes>


OPTIONS

       -h            Print the command help menu.

       -v            Turn OFF verbose mode.

       -c <count>    Send <count> messages.

       -d <delay>    Delay <delay> seconds between each  message.

       -l <length>   Each message is <length> bytes long.


DESCRIPTION

       The  tping command sends messages to, and collects replies
       from, a list of nodes, via the LAM  echo  server.   It  is
       similar  to  the  UNIX  ping(8)  command, and is used as a
       quick diagnosis of the LAM network.

       Unless options are specified, tping sends a 1 byte message
       an infinite number of times, displaying the roundtrip time
       of each message as it completes, with a delay of 1  second
       between  roundtrips.   After the loop is broken (with key­
       board interrupt, eg: ^C), tping  prints  statistics  about
       all roundtrip messages.


EXAMPLES

       tping h
           Echo messages to the local node.

       tping -v n7 -l 1000 -c 10
           Echo  1000 byte messages to node 7.  Stay silent while
           working.  Stop after 10 roundtrips and report  statis­
           tics.


BUGS

       There  is  no built-in timeout and tping will wait forever
       to receive an echo.  If no echo is received, due to a dead
       link  or  node, tping hangs.  Stop the process with a key­
       board suspend signal  (eg:  ^Z)  and  terminate  LAM  with
       lamhalt(1) or wipe(1) (although the use of wipe(1) is dep­
       recated).


SEE ALSO

       lamhalt(1), wipe(1)


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