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:
Oct. 31, 2017
Filed:
May. 29, 2015
Netronome Systems, Inc., Santa Clara, CA (US);
Gavin J. Stark, Cambridge, GB;
Stuart C. Wray, Cambridge, GB;
Netronome Systems, Inc., Santa Clara, CA (US);
Abstract
An integrated circuit includes an exact-match flow table structure, a crossbar switch, and an egress packet modifier. Each flow entry includes an egress action value, an egress flow number, and an egress port number. A Flow Id is generated from an incoming packet. The Flow Id is used to obtain a matching flow entry. A portion of the packet is communicated across the crossbar switch to the egress packet modifier, along with the egress action value and flow number. The egress action value is used to obtain non-flow specific header information stored in a first egress memory. The egress flow number is used to obtain flow specific header information stored in a second egress memory. The egress packet modifier adds the header information onto the portion of the packet, thereby generating a complete packet. The complete packet is then output from an egress port indicated by the egress port number.