US 12,278,696 B2
Time offset determination without synchronization
David C. A. Snowdon, Sydney (AU); and David J. Mirabito, Camperdown (AU)
Assigned to Arista Networks, Inc., Santa Clara, CA (US)
Filed by Arista Networks, Inc., Santa Clara, CA (US)
Filed on May 9, 2023, as Appl. No. 18/314,347.
Application 18/314,347 is a continuation of application No. 17/211,091, filed on Mar. 24, 2021, granted, now 11,683,111.
Prior Publication US 2023/0275680 A1, Aug. 31, 2023
Int. Cl. H04J 3/06 (2006.01); H04L 7/00 (2006.01)
CPC H04J 3/0661 (2013.01) [H04L 7/0054 (2013.01)] 20 Claims
OG exemplary drawing
 
15. A method of operating a central node to process an event record for an event detected at a detection node, the method comprising:
receiving, by the central node and from the detection node, the event record, wherein the event record contains an event timestamp;
receiving, by the central node and from the detection node, a plurality of offset records, each offset record identifying the detection node and a neighbor node, containing a timestamp associated with the offset record, and containing a time offset relative to the neighbor node;
adjusting, by the central node, the event timestamp using the time offset in a given offset record of the plurality of offset records identified based on the timestamp of the given offset record and the event timestamp; and
performing, by the central node, a timestamp-pertinent action based on the adjusted event timestamp.