.getMessage(OFType.BARRIER_REQUEST);
barrier.setXid(handshakeTransactionIds--);
msglist.add(barrier);
// Verify (need barrier?)
OFGetConfigRequest configReq = (OFGetConfigRequest)
BasicFactory.getInstance().getMessage(OFType.GET_CONFIG_REQUEST);
configReq.setXid(handshakeTransactionIds--);
msglist.add(configReq);
channel.write(msglist);
}