Methods, apparatuses and systems relating to the control and application of policies for routing data over a computer network, such as the Internet. Some implementations of the invention facilitate the configuration, deployment and/or maintenance of network routing policies. Some implementations of the...http://www.google.com.hk/patents/US20030204619?utm_source=gb-gplus-share專利 US20030204619 - Methods, apparatuses and systems facilitating determination of network path metrics
