| 摘要 |
In a multi-layer transport network, a method and related control plane allow automatic provisioning of a client layer connection ( 31, 32, 33, 24, 34, 35 ) over at least one server layer connection ( 11, 12, 13, 21, 22, 23, 14, 15, 16, 25, 26 ) by selecting a path through the transport network taking into account free resources of existing server layer connections ( 14, 15, 16, 25 ) and additionally taking into account free resources in the transport network, where no server layer connections exist so far. The selection is based on a cost calculation which takes into account a cost value per link and further takes into account an additional cost value for links on which no available server layer connection exist so far. Eventually, the path having the lowest overall cost is selected. Server layer connections ( 11, 12, 13, 21, 22, 23, 26 ) on links along said selected path where no server layer connection with free resources exists so far are then established and used to set up the requested client layer ( 31, 32, 33, 24, 34, 35 ) connection.
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