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. 07, 2019
Filed:
Jan. 24, 2017
Cisco Technology, Inc., San Jose, CA (US);
Nataraj Bacthu, Sunnyvale, CA (US);
Ayan Banerjee, Fremont, CA (US);
Raghava Sivaramu, Fremont, CA (US);
Ankan Ghosh, San Jose, CA (US);
CISCO TECHNOLOGY, INC., San Jose, CA (US);
Abstract
In one embodiment, a method includes receiving a request to add a prefix to memory for a route lookup at a forwarding device, the memory comprising a plurality of pivot tiles for storing pivot entries, each of the pivot entries comprising a plurality of prefixes and a pointer to a trie index, searching at the forwarding device, a dynamic pool of the pivot tiles based on a base-width associated with the prefix, allocating at least a portion of the pivot tile to the base-width and creating a pivot entry for the prefix and other prefixes with a corresponding base-width, and dynamically updating prefixes stored on the pivot tiles based on route changes to optimize storage of prefixes on the pivot tiles. An apparatus and logic are also disclosed herein.