/**
* Send a hello message to the switch using the handshake transactions ids.
*
* @throws IOException
*/
private void sendHelloMessage() throws IOException {
// Send initial hello message
OFHello.Builder builder = factory.buildHello();
/* Our highest-configured OFVersion does support version bitmaps, so include it */
if (factory.getVersion().compareTo(OFVersion.OF_13) >= 0) {
List<OFHelloElem> he = new ArrayList<OFHelloElem>();
he.add(factory.buildHelloElemVersionbitmap().setBitmaps(ofBitmaps).build());
builder.setElements(he);
}
OFHello m = builder.setXid(handshakeTransactionIds--).build();
write(m);
log.debug("Send hello: {}", m);
}
private void sendEchoReply(OFEchoRequest request) {
OFEchoReply reply =
factory.buildEchoReply().setXid(request.getXid()).setData(request.getData()).build();
write(reply);
}
private void sendEchoRequest() {
OFEchoRequest request = factory.buildEchoRequest().setXid(handshakeTransactionIds--).build();
/* Record for latency calculation */
echoSendTime = System.currentTimeMillis();
write(request);
}
/**
* Send a features request message to the switch using the handshake transactions ids.
*
* @throws IOException
*/
private void sendFeaturesRequest() throws IOException {
// Send initial Features Request
OFFeaturesRequest m = factory.buildFeaturesRequest().setXid(handshakeTransactionIds--).build();
write(m);
}