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:
Nov. 29, 2022
Filed:
Jul. 06, 2020
Nokia Solutions and Networks Oy, Espoo, FI;
Hyunseok Chang, Holmdel, NJ (US);
Fang Hao, Morganville, NJ (US);
Muralidharan Kodialam, Marlboro, NJ (US);
T. V. Lakshman, Morganville, NJ (US);
Sarit Mukherjee, Morganville, NJ (US);
Limin Wang, Plainsboro, NJ (US);
Nokia Solutions and Networks Oy, Espoo, FI;
Abstract
Packet-processing circuitry including one or more flow caches whose contents are managed using a cache-entry replacement policy that is implemented based on one or more updatable counters maintained for each of the cache entries. In an example embodiment, the implemented policy enables the flow cache to effectively catch and keep elephant flows by giving to the caught elephant flows appropriate preference in terms of the cache dwell time, which can beneficially improve the overall cache-hit ratio and/or packet-processing throughput. Some embodiments can be used to implement an Open Virtual Switch (OVS). Some embodiments are advantageously capable of implementing the cache-entry replacement policy with very limited additional memory allocation.