On Mon, 16 Aug 1999, Mandis Beigi wrote: > My trace file is empty and that is the problem. I don't know why! > I use: $ns trace-all $f where $f is the trace file. closing the tracefile properly is generally necessary to flush stuff to it. L. <[email protected]>PGP<http://www.ee.surrey.ac.uk/Personal/L.Wood/>