It was the first such test I'd done since moving from IDN to ELEKTRON. I had trouble getting newer versions of sink_driven_src to run (I'm assuming there are newer modifications I needed to make to my capture file). I was able to get the version working that I used in 2010 (ssl4.2.F38). That version is not multi-threaded. Are newer versions multi-threaded? If so, I may need a little guidance as to additional capture file manipulation. @ron.bove