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:
Jun. 16, 2020
Filed:
Aug. 16, 2017
Barefoot Networks, Inc., Palo Alto, CA (US);
Gregory C. Watson, Palo Alto, CA (US);
Srivathsa Dhruvanarayan, Saratoga, CA (US);
Glen Raymond Gibb, Menlo Park, CA (US);
Constantine Calamvokis, Bath, GB;
Aled Justin Edwards, Charfield, GB;
Barefoot Networks, Inc., Santa Clara, CA (US);
Abstract
Some embodiments provide a method for a deparser of a processing pipeline. The method receives, from a set of match-action stages of the pipeline, packet header field (PHF) values for a first set of PHFs of a packet processed by the match-action stages. The method also receives, directly from a parser of the pipeline, (i) packet data for the packet prior to any modification by the match-action stages and (ii) descriptive data that specifies locations within the packet data for a second set of PHFs of the packet that are not included in the first set of PHFs. The method constructs a packet from (i) the PHF values received for the first set of PHFs and (ii) the packet data received for the second set of PHFs. The descriptive data is used to extract packet header field values for the second set of PHFs from the packet data.