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 keyboard 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 statistics.
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 keyboard suspend signal (eg: ^Z) and
terminate LAM with lamhalt(1) or wipe(1) (although the use of wipe(1)
is deprecated).
