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. 24, 2019
Filed:
Oct. 24, 2017
Cisco Technology, Inc., San Jose, CA (US);
Sarang M. Dharmapurikar, Cupertino, CA (US);
Mohammadreza Alizadeh Attar, Santa Clara, CA (US);
Kit Chiu Chu, Fremont, CA (US);
Francisco M. Matus, Saratoga, CA (US);
Adam Hutchin, Mountain View, CA (US);
Janakiramanan Vaidyanathan, San Ramon, CA (US);
CISCO TECHNOLOGY, INC., San Jose, CA (US);
Abstract
Apparatus, systems and methods may be used to monitor data flows and to select and track particularly large data flows. A method of tracking data flows and identifying large-data ('elephant') flows comprises extracting fields from a packet of data to construct a flow key, computing a hash value on the flow key to provide a hashed flow signature, entering and/or comparing the hashed flow signature with entries in a flow hash table. Each hash table entry includes a byte count for a respective flow. When the byte count for a flow exceeds a threshold value, the flow is added to a large-data flow ('elephant') table and the flow is then tracked in the large-data flow table.