Active flow diagnostics for cloud-hosted networks
US10686568B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2016 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Jul 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/2514
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An overlay network refers to a network that is implemented as various different virtual resources on a physical network referred to as an underlay network. Diagnostics are performed on the overlay network by injecting diagnostic packets from a source endpoint targeting a target endpoint. These endpoints can be in the overlay network, on-premises with the other endpoint but in a different overlay network, or off-premises form the other endpoint. The diagnostic packets include a data packet encapsulated with a diagnostic encapsulation header that can be removed by a network element in the underlay network to allow processing of the data packet, and then added back on. The network element maintains trace information that is a record of receipt of the diagnostic packet and operations performed on the diagnostic packet. A tracing service collects and analyzes this trace information from the various network elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.