The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2022
Filed:
Dec. 14, 2020
Nec Corporation, Tokyo, JP;
Roberto Bifulco, Heidelberg, DE;
Anton Matsiuk, Hamburg, DE;
NEC CORPORATION, Tokyo, JP;
Abstract
A stateful packet processing system includes: a first stateful stage including a first state table and a first finite state machine ('FSM') table; and a second stateful stage including a second state table and a second FSM table. The system performs a distribution operation defining when a flow is processed by the first and/or the second stateful stage. The first and/or second FSM table is extended with states and transitions that support the distribution operation. The first and/or second stateful stage executes an evaluation operation that executes the distribution operation. The evaluation operation provides a criterion for moving a particular flow from one of the first or second stateful stage to the other stateful stage. The first and second stateful stages are included in a software-defined networking ('SDN') switch. The distribution operation operates within defined capabilities of a software and/or hardware pipeline of the SDN switch.