Path determination method and system for delay-optimized service function chaining
US10834004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Oct 12, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/283
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method as implemented in a controller in a SDN: (a) receiving service function chain orders of packet flows comprising a service function chain; (b) receiving, in real-time, delay measurements from either one of the virtual network functions and/or one of the network switches; (c) determining a plurality of realizations of the service function chain orders of (a) in order to minimize a total delay; (d) choosing an optimal realization corresponding to a least delay; and (e) determining one or more flow rules for the one or more network switches, the determining based on the optimal realization in (d). A controller and an article of manufacture implementing such a method are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.