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:
Sep. 20, 2022
Filed:
Dec. 13, 2016
Nec Laboratories Europe Gmbh, Heidelberg, DE;
Fabian Schneider, Darmstadt, DE;
Anton Matsiuk, Hamburg, DE;
Dimitrios Gkounis, Kingston Upon Thames, GB;
NEC Corporation, Tokyo, JP;
Abstract
A method performs round-trip time determination between a source element and a target element, the source element is a forwarding element of a software defined network, which also includes a software defined network controller for controlling the forwarding elements. The method includes: instructing the source element to install a low priority detection rule, the low priority detection rule being triggerable by an incoming pong probe packet; instructing the source element to install at least one high priority detection rule having a timeout period, the high priority detection rule being triggerable by the incoming pong probe packet; instructing the source element to send a ping probe packet from the source element to the target element; deriving an estimate range for the round-trip time based on the detection rule being triggered by the pong probe packet received by the source element from the target element in response to the ping probe packet.