Topological design of a two-level network with ring-star configuration
Computers and Operations Research
Routing Through Networks with Hierarchical Topology Aggregation
ISCC '98 Proceedings of the Third IEEE Symposium on Computers & Communications
Modified Hierarchical 3D-Torus Network
IEICE - Transactions on Information and Systems
Hierarchical topological network design
IEEE/ACM Transactions on Networking (TON)
Mesh-based Survivable Transport Networks: Options and Strategies for Optical, MPLS, SONET and ATM Networking
Applying 4-regular grid structures in large-scale access networks
Computer Communications
Feasibility of IP restoration in a tier 1 backbone
IEEE Network: The Magazine of Global Internetworking
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Multi-level networks have been a good solution in large scale network scenarios. The implementation of a network in different levels or sub-layers, improves the performance and reduces the investment compared to flat topologies. This paper introduces a method to characterize important parameters on multi-level networks such as diameter, average distance and gateway location to be able to optimize the global network topology. The study focuses on the lower level of the network formed by subnetworks with regular structures, and the method is illustrated with two of the simplest regular topologies such as Single Ring and Double Ring. The conclusions achieved will ease and improve the network planning of large scale networks.