Tunnel-less SD-WAN
US12375403B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2023 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Feb 13, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/42
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a novel tunnel-less SD-WAN, when an ingress node of the SD-WAN receives a new packet flow, it identifies the path of the flow through the SD-WAN, and sends an initial prepended set of SD-WAN header values before the first packet for the flow to the next hop along this identified path, rather than encapsulating each packet of the flow with encapsulating tunnel headers that store SD-WAN next hop data for the flow. The prepended set of SD-WAN header values are then used to not only forward the first packet through the SD-WAN, but also to create records at each subsequent hop, which are then used to forward subsequent packets of the flow through the SD-WAN.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.