Method to build a service function chain in an overlay network
US12418440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2022 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | Oct 23, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/745
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Implementations are provided for building a service function chain in a network that can remove the requirement to encapsulate packet level metadata or other packet levels in a service function chain. The approach allows for implementing service function chains while separating chain metadata from the service function so that service functions are not required to support handling service function chaining metadata. The approach can map a tunnel identifier of an encapsulated data packet to an attachment circuit of a service function and can rewrite the destination media access control (MAC) address of the data packet to the MAC address of the service function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.