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:
Jul. 13, 2021
Filed:
Jun. 26, 2019
Arista Networks, Inc., Santa Clara, CA (US);
Eswaran Baskaran, Los Altos, CA (US);
Ramakrishna Paduvalli, San Jose, CA (US);
Arista Networks, Inc., Santa Clara, CA (US);
Abstract
Upgrading packet processing rules in a network device with a replacement set of rules includes generating an edit sequence that represents edit operations to transform an already-installed old set of rules into the replacement rules. The edit sequence is used to identify a subsequence of rules that is common to both the old rules and the replacement rules. A merged list is generated by a combination of the old rules, the replacement rules, and the common subsequence of rules. The merged list is downloaded to the network device, overwriting the old rules in bottom-up fashion allowing packet processing to continue concurrently using the old rules.