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A traffic engineered label switched path (TE-LSP) is usually deployed on an optimally computed path. In complex network scenarios, or when external nodes like path computation elements (PCEs) are solicited in a distributed manner, the already resource hungry task of optimal path computation could take a considerable amount of time during which network resources may fluctuate. This could result in...
SDH (synchronous digital hierarchy) is a strictly planned system. Rings, meshes, stars or tree-branches topologies are designed to connect its basic elements. In spite of that, we have found that the SDH network operated by Telefonica-Espana displays complex traits like other complex networks. In particular we have found power-law scaling in the degree distribution. The scaling observed has a well...
The research was based on the massive data authorized by CAIDA (The cooperative association for Internet data analysis) Skitter project. We used the k-core decomposition to disentangle the hierarchical structure of Internet router-level topology. Combining with the actual topology measuring data, we first exhibited the pruning procedure of Internet router-level topology. Then we analyzed the characteristics...
Future network intruders are constantly changing, improving and extending the capabilities of their botnets. Peer to peer bots are now under widespread development and are quickly evolving into a much tougher species to kill. However, partly due to the lack of understanding of the structural potential of command and control mechanism a botnets can have, countering peer to peer botnets has been ineffective...
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