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:
Aug. 04, 2009
Filed:
Oct. 02, 2003
Andrew Mcrae, Berowra, AU;
Sanjeev A. Mahajan, Sunnyvale, CA (US);
David James Stewart, Tewksbury, MA (US);
Andrew McRae, Berowra, AU;
Sanjeev A. Mahajan, Sunnyvale, CA (US);
David James Stewart, Tewksbury, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A system and method for implementing a CPU/Network Device Interface that reduces the CPU involvement in managing the interface. New data structures in shared memory that are either read-only or write-only by CPU allow the CPU to efficiently utilize techniques such as write-posting and cache prefetching. Additionally, hardware-assisted packet transmission and high-level packet flow control reduce the burden on the CPU. A fair allocation system assures fair access to the receive interface by multiple line cards.