Symmetric flow processing in a software-defined networking (SDN) system
US9473404B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2015 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | May 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/38
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method implemented in a software-defined networking (SDN) system includes determining that a packet is to be forwarded by a flow table that includes at least two sets of instructions in flow table entries. The method continues with determining values of a plurality of match key components extracted from the packet to match the flow table, where the plurality of match key components contains at least a pair of match key components in a same type, wherein values of the pair are determined based on numerical measures of the pair. The method continues with searching the flow table to find a matching entry for the packet and, upon finding it, selecting one of the at least two sets of instructions of the matching entry following the determination of the values of the plurality of match key components, and perform the selected set of instructions on the packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.