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:
Jan. 12, 2021
Filed:
Nov. 22, 2017
Cisco Technology, Inc., San Jose, CA (US);
Hung The Chau, Highland, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method and system for packet tracing is described. In one embodiment, a method includes selecting a packet for tracing through a cluster of a plurality of nodes. The method includes preparing the packet for tracing by generating a cluster-wide unique ID, associating the unique ID with the packet, generating a running counter, and associating the counter with the packet. The method includes generating a first record buffer on a first node of the plurality of nodes and recording the unique ID and an initial value of the counter. The method includes recording a description of an operation performed on the packet in the first record buffer along with a value of the counter. The method also includes transferring the packet to a second node, along with the unique ID, the value of the running counter, and an attribute that indicates that the packet is to be traced.