Traffic information is accumulated and flow control information distributed in a packet switching system. Traffic information is collected in multiple elements, which forward in a coordinated fashion to collecting elements indications of congestion and other types of information. The collecting elements...http://www.google.com.hk/patents/US7046627?utm_source=gb-gplus-share專利 US7046627 - Method and apparatus for accumulating and distributing traffic and flow control information in a packet switching system
