Okay, this is a nasty little hack ... Add support for a global delays
reset. I've done this with an event group cause otherwise I was going to get sucked into the event system and spit out the other end. You can reset the delays in your experiment either from the ns file: $ns at 100 "$ns reset-lans" or from the command line: tevc -e foo/bar now all_lans reset and yes, "all_lans" is a magic token. It would be nice to support per-link or lan reset, but that is going to require reorganizing the delay start up scripts on the delay nodes, since right now a single delay agent operates for muliple links and lans.
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