| 摘要 |
A partially interconnected network comprises a plurality of Allocated Nodes, which Allocated Nodes are each allocated to one of a number of Areas (AREAs) , and further comprises a plurality of Star Nodes (STARs) and point-to-point interconnections between the Allocated Nodes and the Star Nodes, where the number of AREAs with Allocated Nodes interconnected to an individual Star forms the number of Routes (ROUTEs) from an individual STAR, each of a proportion of the plurality of Star Nodes having connected thereat one of a group of Point of Presence (PoP) Units, said group of PoP Units being arrang ed to provide access to a selected service or selected services, the Allocated Nodes of a first of the AREAs being interconnected to a set comprising some, but not all, of the STAR Nodes, and wherein further of the AREAs are similar ly interconnected to further sets each comprising STAR Nodes, one, or more than one, of the direct point-to-point interconnections from each Allocated Node connecting to one, or more than one, of the plurality of Star Nodes having connected thereat one of the group of PoP Units, and where there is at least one interconnection choice (CHOISE) between any two Allocated Nodes in different AREAs and where an interconnection route comprises two point-to- point interconnectionsinterconnected in series by a STAR Node.
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