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:
Oct. 17, 2006
Filed:
Jun. 29, 2001
Avraham Mualem, Portland, OR (US);
Linden Minnick, Hillsboro, OR (US);
Avraham Mualem, Portland, OR (US);
Linden Minnick, Hillsboro, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A method and apparatus for intelligently determining which traffic streams to offload efficiently. A metric value is associated with a Security Association (SA) for each network traffic stream coupled to an electronic system. The metric is used to determine which of multiple methods to perform cryptography operations should be used to handle which streams. The metric is modified based on network traffic, and increased when the SA is cached. The metric of all SAs is periodically decreased. In one embodiment, a network interface driver determines which SAs should be cached on a network interface card and handled using Inline Receive, and which SAs should not be cached and handled using Secondary Use. Cached SAs are replaced by non-cached SAs only if the metric value of a non-cached SA is greater than the metric value of a cached SA by at least a predetermined amount representing the cost of cache replacement.