Topological Considerations of ATM Networks.
DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION SALISBURY (AUSTRALIA)
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The key to achieving universal network scalability is hierarchical organisation, where routing information is aggregated between levels in the hierarchy. This approach can considerably reduce the overheads due to storage, transfer and processing of routing information for large networks. Other benefits include increased security and ease of management of the network. Due to the high routing complexity of the PNNI routing protocol, an optimal hierarchical structure is essential to reduce the huge overheads incurred. This report considers two hierarchical routing models based on the optimisation of the size of topology databases and routing complexity, respectively. The report also suggests some design guidelines for an hierarchical PNNI structure of a network topology.
- Computer Systems