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:
Aug. 17, 2021
Filed:
Sep. 12, 2016
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Ashutosh Bisht, Bangalore, IN;
Nishant Saurabh, Bangalore, IN;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method is implemented by a switch in a Software Defined Networking (SDN) network to trace packets belonging to a flow. The method includes setting a value in a first field and a second field associated with the packet to indicate that tracing is enabled for the packet, where the second field is a field that is not used for packet matching, determining, at a second flow table, whether tracing is enabled for the packet based on the value in the first field, transmitting a trace message for the packet to a trace collector in response to a determination that tracing is enabled for the packet, setting a value in the first field to indicate that tracing is disabled for the packet, resubmitting the packet to the second flow table, and copying the value in the second field to the first field before directing the packet to another flow table.