Echo messaging for operation, administration, and management of a service-based distribution path and associated services are disclosed. Service-based distribution paths or transport tunnels include services mapped or bound to a path associated with the transport tunnel. Echo messaging provides OAM capabilities...http://www.google.fr/patents/US20090116396?utm_source=gb-gplus-shareBrevet US20090116396 - OAM echo messaging to verify a service-based network distribution path
OAM echo messaging to verify a service-based network distribution path
