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In this paper, we propose two efficient topology aggregation (TA) methods to deal with the scalability problem of hierarchical quality of services (QoS) routing. Our methods first use line fitting staircase or quadratic curve fitting staircase to approximate the original service staircase in the full mesh compaction. Then we respectively transform the restrictive parameters and the additive parameters...
Today??s networks are often hierarchically modeled for both scalability and security considerations. Topology aggregation is introduced for the purpose of simplifying routing by summering and compressing information of lower levels and advertising them to higher logical levels. However, the balance between performance and accuracy of state information must be taken into account since topology aggregation...
Large scale networks are usually hierarchically structured for the reason of scalability and security. Topology aggregation is introduced for the state information reduction of domains, but it also brings distortion of the original state information. The tradeoff between information reduction and distortion is the key to topology aggregation. In this paper, a new topology aggregation algorithm called...
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