In one embodiment, a border node receives a message that includes routing information indicating connection of a network device to a domain. The border node then updates a routing database with the routing information, and also uses a network address for the network device to determine whether to propagate...http://www.google.com.tw/patents/US7860027?utm_source=gb-gplus-share專利 US7860027 - Extending an IP everywhere network over a plurality of flooding domains
