Communications trails on a network can be provisioned by users using a trail manager. In a hierarchically-layered connection-management domain, when a trial (50) between trial termination points having respective adaptation capabilities is provisioned, client links (52,54,56) within the intersection...http://www.google.com.au/patents/US6819668?utm_source=gb-gplus-sharePatent US6819668 - Trail management in a communications network
