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:
Jan. 24, 2006
Filed:
May. 10, 2001
Marufa Kaniz, Sunnyvale, CA (US);
Somnath Viswanath, San Jose, CA (US);
Marufa Kaniz, Sunnyvale, CA (US);
Somnath Viswanath, San Jose, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
An address lookup table in a multiport switch is implemented as a plurality of address sub-tables. Entries in the address sub-tables are stored at row addresses based on a hash of the information in the entry. Entries in the address sub-tables are stored in one of the address sub-tables, as determined by pre-selected information relating to the entry. For example, the least significant bit of a source or destination MAC address may be used to select between two address sub-tables. In this manner, the total memory size of the address table can be increased relative to a single address sub-table while decreasing the length of the longest chain and the length of the average chain.