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:
May. 04, 2010
Filed:
Mar. 05, 2007
Bruce Booth, Richmond Hill, CA;
Mark E. Goodgion, Raleigh, NC (US);
Atef O. Zaghloul, Morrisville, NC (US);
John H. Zeiger, Raleigh, NC (US);
Bruce Booth, Richmond Hill, CA;
Mark E. Goodgion, Raleigh, NC (US);
Atef O. Zaghloul, Morrisville, NC (US);
John H. Zeiger, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, system and program product for equitable sharing of a CAM (Content Addressable Memory) table among multiple users of a switch. The method includes reserving buffers in the table to be shared, the remaining buffers being allocated to each user. The method further includes establishing whether or not an address contained in a packet from a user is listed in a buffer in the table, if the address is listed, updating a time-to-live value for the buffer for forwarding the packet and, if the address is not listed, determining whether or not the user has exceeded its allocated buffers and whether or not the reserved buffers have been exhausted, such that, if the user has exceeded its allocated buffers and the reserved buffers have been exhausted, the address is not added to the table and the user is precluded from using any additional buffers in the network switch.