Tcp2Connection c = new Tcp2Connection( "tcp://127.0.0.1:"+port, r );
c.setSession( dh );
assertFalse( c.isStarted() );
c.start();
assertTrue( c.isStarted() );
SocketChannel t = lh.accepted.waitUntilNotEqAndSet( null, TIMEOUT, null );
assertWhat( What.UP, dh.what );
assertNull( dh.xsender );