公开(公告)号：WO2022031411A1

公开(公告)日：2022-02-10

申请号：PCT/US2021/041614

申请日：2021-07-14

Applicant: CISCO TECHNOLOGY, INC.

Inventor： BERMAN, Adam Laufer ,  WEITZMAN, Samuel Eugene ,  GOUJON, Antoine

IPC: H04L12/24 ,  H04L12/26 ,  H04L41/0631 ,  H04L41/0636 ,  H04L41/12 ,  H04L41/145 ,  H04L41/22 ,  H04L43/045 ,  H04L43/0805 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/10 ,  H04L45/02 ,  H04L45/16 ,  H04L45/48 ,  H04L69/16

Abstract: Techniques for internet last-mile outage detection are disclosed herein. The techniques include methods for monitoring, by a network appliance associated with a network, a plurality of network nodes, detecting, by the network appliance, that a network node of the plurality of network nodes in a last mile of the network has disconnected from the network, overlaying, by the network appliance, the network node over a network model for at least a portion of the network including the network node to generate a model overlay, and determining, by the network appliance, a last mile outage source associated with a disconnection of the network node by identifying a lowest common ancestor node of the network node from the model overlay. Systems and computer-readable media are also provided.