ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,225,014, issued on Feb. 11, was assigned to ARISTA NETWORKS INC. (Santa Clara, Calif.).
"Efficient hitless upgrade of packet processing filters" was invented by Ramakrishna Paduvalli (Saratoga, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "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...