>>>>> "Don" == Don Lewis <gdonl@gv.ssi1.com> writes:
    Don> This could be pretty annoying when trying to track down a
    Don> network problem.  While you're crawling around, wiggling
    Don> wires, trying to track down the loose connection, NetBSD is
    Don> helpfully squirting the bits out the other connector and onto
    Don> the floor.

  This is a good point. I'd say that let link1 or something cause the
switching behaviour, and let it be off by default for principle of
least surprise.