Patent · US Active

Software defined network forwarding

US11271850B2 · kind B2 · utility

0Cited by

0References

14Claims

0Family size

Assignee

NEC CORPORATION · JP

Inventors

Fabian Schneider · Darmstadt, DE
Andreas Ripke · Neckargemünd, DE
Peer Hasselmeyer · Frankfurt, DE

Key dates

Filing date	Mar 23, 2017
Grant date	Mar 8, 2022
Priority date	—
Expiry date	Mar 23, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04L69/164
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A software-defined networking (“SDN”) capable forwarding switch includes ports for receiving and/or outputting data packets and a packet pipeline including a forwarding table. The forwarding table is configured to contain a number of flow table entries (“FTEs”), that determine the forwarding switch's configuration and control behavior. The switch further includes a control engine configured to manipulate the forwarding switch's forwarding tables by adding, updating, and/or removing FTEs in the forwarding tables. An FTE of a forwarding table is configured to contain a specific action part that includes an action instruction to create a control packet and to send it to the control engine. The control packet includes embedded control instructions that cause the control engine to change the forwarding switch's configuration and/or control behavior.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.