Preserving policy with path selection
US10938716B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2018 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Jan 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and techniques are described for ensuring that policies are consistently applied to traffic across an overlay network. An application identifier associated with a forward traffic flow and a corresponding reverse traffic flow can be determined by a device that routes packets of both the forward traffic flow and the corresponding reverse traffic flow. Next, an overlay header can be added to each packet in the forward traffic flow and to each packet in the corresponding reverse traffic flow, wherein the overlay header comprises the application identifier, a policy identifier, and a policy action. Each device in the overlay network can then apply the policy action specified in the overlay header of each packet that it routes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.