void HandleCongestionBackoff()
{
if (ReceiveQueue.Count >= 1 && PreviousReceiveQueueLength == 0)
{
MessageJammed++;
Trace.WriteLine(string.Format("congested at {0}", Id));
ReceiveQueue.ForEach(message => message.Source.SentMessageCount++);
ReceivedMessageCount++;
Thread.Sleep(BackoffPeriod);
}
PreviousReceiveQueueLength = ReceiveQueue.Count;
}