Method and network nodes for scalable mapping of tags to service function chain encapsulation headers
US10742544B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2016 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Mar 30, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/5051
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method performed by a network node includes the network node receiving, from a first portion of a service chain, a packet having a header portion that includes a first service chain path ID and a metadata field. The method further includes the network node retrieving, according to one or more predefined rules, one or more tags included in the metadata field. The method further includes the network node generating a second service chain path ID based on the one or more retrieved tags. The method further includes the network node replacing the first service chain path ID by inserting the second service chain path ID in the header portion, where the packet is forwarded, to a second portion of the service chain, in accordance with the second service chain path ID.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.