netflow
関連情報調査中。
http://www.cisco.com/en/US/products/ps6601/products_ios_protocol_group_home.html
http://en.wikipedia.org/wiki/Netflow
http://manageengine.adventnet.com/products/netflow/cisco-netflow.html?adwords33nf&gclid=COWq4YbO6IgCFQNyTAodADooig
http://www.adventnet.co.jp/products/netflow/index.html
http://netflow.cesnet.cz/n_netflow.php
http://www.splintered.net/sw/flow-tools/