Patent · US Active

Efficient cascading of flow tables in software defined networks (SDN)

US10659389B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

NEC CORPORATION · JP

Inventors

Felix Klaedtke · Heidelberg, DE
Ghassan Karame · Heidelberg, DE
Roberto Bifulco · Heidelberg, DE

Key dates

Filing date	Jul 16, 2014
Grant date	May 19, 2020
Priority date	—
Expiry date	Jun 23, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04L45/38
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method of providing access control for a software defined network (SDN) controller includes establishing a cascaded flow of flow table entries by linking together flow table entries of flow tables that are installed at network resources and that apply to the same packets or network flows, analyzing the impact of configuration requests from one or more applications regarding the installation and/or removal of flow table entries on existing cascaded flows, and rejecting configuration requests if the installation and/or removal of flow table entries according to the configuration requests would destroy an existing cascaded flow. The SDN controller includes an interface for interacting with one or more applications that are installed to run at the control plane of the SDN atop the SDN controller.

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