A system for determining a topology associated with a network such as an enterprise network. The system includes a data collection agent 204 configured to (a) identify a first set of routers from among a larger, second set of routers in an enterprise network, (b) contact each of the routers in the first...http://www.google.de/patents/US7200122?utm_source=gb-gplus-sharePatent US7200122 - Using link state information to discover IP network topology
