Marcel,
I didn't launch XMLblaster, so the socket connection plugin cannot be 
found.
I'm testing the failsafe mode, when the XMLblaster Server has not been
started.
So my conclusions are:
    In SOCKET mode:
            If Xmlblaster has not been started, the client does
not try to be connected
            to XMLblaster (It does not switch to the polling
state).
    In IOR mode:
            All is ok. If XMLBlaster has not been started and
that the client initialized the
            failsafe mode. The client try to be connected to
XMLblaster every "X" milliseconds.