Telefonaktiebolaget Lm Ericsson (publ)

Junjie Ji

Wei Xu

Chao Fu

Yun Tian

Mingliang Huang

The embodiments herein relate to a method in a network device. In one embodiment, there proposes a method in a network device, comprising: determining a classification to which a route belongs based on one or more classification criteria; determining, based on the classification to which the route belongs, a detection mechanism for detecting whether the route is an abnormal route; detecting whether the route is an abnormal route using the determined detection mechanism. With the embodiments herein, the abnormal routes, especially the black hole routes, can be automatically detected and resolved in real time.

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Beijing, China

Junjie Ji