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:
Apr. 27, 1999
Filed:
Aug. 29, 1997
Clifford B Melzer, Los Gatos, CA (US);
Jonathan Rosen, Chapel Hill, NC (US);
Robert O'Gorman, Raleigh, NC (US);
Paul A Wood, Raleigh, NC (US);
Mark C Drummond, Catonsville, MD (US);
Dean Hiller, Shrub Oak, NY (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A technique enables a control unit to perform checksum operations for packets, which operations are otherwise performed by a host computer of a computer network. The technique involves the use of two data links coupled between the host and control unit; one data link is used for exchanging 'normal' IP packets without checksum operations performed thereon by the control unit and the other link is used for exchanging IP packets that have undergone or will undergo checksum operations by the control unit. By 'offloading' checksum operations to the control unit, the technique reduces processor cycles consumed by the host, thereby improving the performance of the host computer and network.