Revealing MPLS tunnels obscured from traceroute

@article{Donnet2012RevealingMT,
  title={Revealing MPLS tunnels obscured from traceroute},
  author={Benoit Donnet and Matthew J. Luckie and Pascal M{\'e}rindol and Jean-Jacques Pansiot},
  journal={Computer Communication Review},
  year={2012},
  volume={42},
  pages={87-93}
}
Operators have deployed Multiprotocol Label Switching (MPLS) in the Internet for over a decade. However, its impact on Internet topology measurements is not well known, and it is possible for some MPLS configurations to lead to false router-level links in maps derived from traceroute data. In this paper, we introduce a measurement-based classification of MPLS tunnels, identifying tunnels where IP hops are revealed but not explicitly tagged as label switching routers, as well as tunnels that… CONTINUE READING

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