公开(公告)号：US10038601B1

公开(公告)日：2018-07-31

申请号：US14498028

申请日：2014-09-26

Applicant: Amazon Technologies, Inc.

Inventor： David Dale Becker ,  Eoin Francis Cavanagh

IPC: G06F15/173 ,  H04L12/24 ,  H04L12/26 ,  H04L12/707 ,  H04L29/12

CPC classification number: H04L41/28 ,  H04L43/062 ,  H04L43/0835 ,  H04L43/10 ,  H04L43/12 ,  H04L45/24 ,  H04L61/2007

Abstract: The following description is directed to monitoring a multi-tier network including a first tier of routers and a second tier of routers. In one embodiment, a method of monitoring the network comprises creating a probe packet. The probe packet can include a source address corresponding to a monitoring function, and a destination address served by a path from the first tier to the second tier of routers. The probe packet can be transmitted into the multi-tier network. A number of probe packets counted by each router of the first and second tiers of routers can be received. One or more performance metrics of the multi-tier network can be determined based, at least in part, on a sum of the number of probe packets counted by the first tier of routers and a sum of the number of probe packets counted by the second tier of routers.