  Linear n-local networks are compatible with quantum repeaters based
entanglement distribution protocols. Different sources of imperfections such as
error in entanglement generation, communication over noisy quantum channels and
imperfections in measurements result in decay of quantumness across such
networks. From practical perspectives it becomes imperative to analyze non
classicality of quantum network correlations in presence of different types of
noise. Present discussion provides a formal characterization of non n-local
feature of quantum correlations in noisy network scenario. In this context,
persistency of non n-locality has been introduced. Such a notion helps in
analyzing decay of non n-local feature of network correlations with increasing
length of the linear network in presence of one or more causes of
imperfections.
