| 摘要 |
<p>A method for establishing a connection across resource domains comprises: determining source and destination end-points for the connection,
determining, by a service agent, a chain of adjacent service elements suitable for joining the source and destination end-points based on the identified edges,
requesting, by the service agent, a first service provider (35) associated to a service element in the chain to select a first connection segment embodying the service element, receiving, by the service agent, an inter-carrier communication resource identifier from the first service provider, said inter-carrier communication resource identifier indicating communication resources at an inter-carrier interface between an end point of the first connection segment and a resource domain associated to an adjacent service element in the chain,
transferring, by the service agent, the inter-carrier communication resource identifier to a second service provider (25) associated to the adjacent service element.</p> |
