The invention relates to a method for controlling overload in a packet switched network, especially in a network where Transmission Control Protocol (TCP) is used as the transport layer protocol. In order to inform the traffic source at a very early stage that the network is getting overloaded or congested,...http://www.google.com.tw/patents/US6882624?utm_source=gb-gplus-share專利 US6882624 - Congestion and overload control in a packet switched network