Disclosed is a method and apparatus for provisioning a label switched path (LSP) between two endpoints executing a first set of MPLS functions. The method and apparatus associates a first node with the first endpoint and a second node with the second endpoint. The first node is designated as the source....http://www.google.com/patents/US7990945?utm_source=gb-gplus-sharePatent US7990945 - Method and apparatus for provisioning a label switched path across two or more networks