| 摘要 |
In order to satisfy a request for a connection path having a specified capacity between two specified terminations of a telecommunications network (91), a store (90) of routings and available capacities is searched to identify a connection path to satisfy the request; and if no connection path with adequate capacity is present in the store (90), a model (96) of the network is tested to identify suitable connection paths between the requested terminations, which are then added to the store (90), and allocated so as to satisfy the request. The search for suitable connection paths can take into account the hierarchical structure of the network (91) to identify suitable links to build up a path step by step. In a preferred arrangement the path is built up from each terminal point, at each stage using the link in the network which will bring the resulting ends of the two partial paths closest together, utilising, as a measure, a distance weighted according to the hierarchical level of the link.
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