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:
Dec. 19, 2017
Filed:
Mar. 18, 2015
Arista Networks, Inc., Santa Clara, CA (US);
John Peach, Maidenhead, GB;
Subhachandra Chandra, Santa Clara, CA (US);
Arista Networks, Inc., Santa Clara, CA (US);
Abstract
A system, method, and associated apparatus for continuous measurement of transit latency in individual data switches and multi-device topologies is disclosed, which enables an accurate measure of real-word latency on production networks by applying a time stamp to production network data on ingress to a network element and determining a traversal time by capturing the time stamp on egress from the network element. In one embodiment, time stamps applied to network data are removed on egress to avoid undesirable packet growth across multiple hops of the network. Timing information on data flow through the data/forwarding plane of each network node of a production network can be gathered without the use of test harnesses, injected network data, or dedicated ports.