Network Topology Tomography Under Multipath Routing

Network topology tomography can infer a tree topology for single-source networks using end-to-end measurements. However, multipath routing, which introduces multiple paths between end-hosts, violates the tree topology model. In this letter, we demonstrate that such nontree topologies are also identi...

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Published in:IEEE communications letters 2016-03, Vol.20 (3), p.550-553
Main Authors: Pan, Shengli, Zhou, Yingjie, Yu, Fucai, Qian, Feng, Hu, Guangmin
Format: Article
Language:English
Subjects:
Delays
multipath routing
network tomography
Network topology
Routing
Simulation
Tomography
Topology
topology identification
Yttrium
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description Network topology tomography can infer a tree topology for single-source networks using end-to-end measurements. However, multipath routing, which introduces multiple paths between end-hosts, violates the tree topology model. In this letter, we demonstrate that such nontree topologies are also identifiable. We employ graph cuts and show the nontree topology can be decomposed into two identifiable subtopologies. And by reconnecting the cut paths, the nontree topology can be recovered after obtaining these subtopologies. To detect the paths that share cuts, we propose a scheme based on measurements of the end-to-end packet arrival order. Simulation results show that our scheme achieves the desirable detection accuracy.
doi_str_mv 10.1109/LCOMM.2016.2516531
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subjects Delays
multipath routing
network tomography
Network topology
Routing
Simulation
Tomography
Topology
topology identification
Yttrium
title Network Topology Tomography Under Multipath Routing
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