SRLG failure localization with monitoring trails in all-optical mesh networks

@article{Babarczi2011SRLGFL,
  title={SRLG failure localization with monitoring trails in all-optical mesh networks},
  author={P{\'e}ter Babarczi and J{\'a}nos Tapolcai and Pin-Han Ho},
  journal={2011 8th International Workshop on the Design of Reliable Communication Networks (DRCN)},
  year={2011},
  pages={188-195}
}
This paper considers the problem of out-of-band failure localization in all-optical mesh networks using bidirectional monitoring trails (bm-trails) for localizing any shared risk link group (SRLG) failure. We firstly prove NP-completeness for the problem of unambiguous failure localization (UFL) under the considered SRLG failure scenario with the minimum number of bm-trails. Next, a necessary and sufficient condition is provided for the feasibility of the formulated problem, which further… CONTINUE READING