Method and related apparatus for probing packet forwarding path
US10284461B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2017 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Dec 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/64
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and a related apparatus for probing a packet forwarding path, so that a packet forwarding path between any two devices can be probed is presented. A controller determines a source device and a destination device, where there is at least one intermediate device between the source device and the destination device; the controller sends an Internet Protocol (IP) packet that includes a probe identifier to the source device; the controller receives a first message sent by the destination device and a second message sent by the intermediate device; the controller determines a forwarding path of the IP packet according to the IP packet and a first inbound interface identifier that are sent by the destination device, the IP packet and a second inbound interface identifier that are sent by the intermediate device, and a network topology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.