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OFQueueGetConfigRequest cr = factory.buildQueueGetConfigRequest().setPort(OFPort.ALLANY).build(); /* Get allRequest queues on all ports any port (i.e. don't care) */
ListenableFuture<OFQueueGetConfigReply> future = switchService.getSwitch(DatpathId.of(1)).writeRequest(cr); /* Send request to switch 1 */
try {
	/* Wait up to 10s for a reply; return when received; else exception thrown */
	OFQueueGetConfigReply reply = future.get(10, TimeUnit.SECONDS);
	/* Iterate over all queues */
	for (OFPacketQueue q : reply.getQueues()) {
			OFPort p = q.getPort(); /* The switch port the queue is on */
			long id = q.getQueueId(); /* The ID of the queue */
			/* Determine if the queue rates */
			for (OFQueueProp qp : q.getProperties()) {
				int rate;
				/* This is a bit clunky now -- need to improve API in Loxi */
				switch (qp.getType()) {
				case OFQueuePropertiesSerializerVer13.MIN_RATE_VAL: /* min rate */
					OFQueuePropMinRate min = (OFQueuePropMinRate) qp;
					rate = min.getRate();
					break;
				case OFQueuePropertiesSerializerVer13.MAX_RATE_VAL: /* max rate */
					OFQueuePropMaxRate max = (OFQueuePropMaxRate) qp;
					rate = max.getRate();
					break;
				}
			}
		}
} catch (InterruptedException | ExecutionException | TimeoutException e) { /* catch e.g. timeout */
	e.printStackTrace();
}