A method that rapidly reconfigures a computer network having a plurality of devices executing the spanning tree algorithm. First, one or more devices are configured and arranged so that one port, providing connectivity to the root, is in the forwarding state and the remaining ports, providing connectivity...http://www.google.com.tw/patents/US20020147800?utm_source=gb-gplus-share專利 US20020147800 - METHOD AND APPARATUS FOR RAPIDLY RECONFIGURING COMPUTER NETWORKS USING A SPANNING TREE ALGORITHM