Topology aggregation for hierarchical routing in ATM networks

摘要: This paper provides a tutorial for topology arregation in large hierarchical communication networks. Specifically, it examines some issues of aggregation PNNI Routing ATM networks, presents complex node representation, and guidelines aggregation. There are two main reasons First, information must be compressed to avoid excessive complexity adevertisement. Second, the internal network may have hidden security reasons. A desirable method adequately represent given efficient routing netowrk resource allocation, using compact advertised topology.