公开(公告)号：US10243785B1

公开(公告)日：2019-03-26

申请号：US15182133

申请日：2016-06-14

Applicant: Amazon Technologies, Inc.

Inventor： John Corrigan ,  Karl Andre McCabe ,  Eoin Francis Cavanagh

IPC: G06F11/00 ,  H04J1/16 ,  H04L12/26 ,  H04L12/24

Abstract: Technologies are provided for active monitoring of network fabrics, such as border network fabrics. For example, test packets can be generated and sent to destination devices within the network fabrics. The test packets can have destination ports that have been identified as closed destination ports. The success of the test packets can be determined based on whether ICMP error packet responses are received. If a network problem is detected based on results of the test packets, then traceroute packets can be used to identify the location of the network problem.

公开(公告)号：US10091052B1

公开(公告)日：2018-10-02

申请号：US14749476

申请日：2015-06-24

Applicant: Amazon Technologies, Inc.

Inventor： John Corrigan ,  Conor Patrick McElhinney

IPC: H04L12/24 ,  G06F11/07

Abstract: A network endpoint may issue network traces directed to another endpoint. Completed traces may provide information pertaining to possible paths between the endpoints. In response to a failed trace, a component along a possible path between the endpoints may be associated with a value that indicates an assessed contribution of the component to the network failure. The value may be used to initialize a parameter to a statistical calculation that iteratively refines the estimate to form a probability estimate regarding a likelihood that the component is contributing to a network fault.