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. 02, 2019
Filed:
Oct. 03, 2017
Cisco Technology, Inc., San Jose, CA (US);
Venkata Naga Ramesh Ponnapalli, Sunnyvale, CA (US);
Ayan Banerjee, Fremont, CA (US);
Raghava K Sivaramu, Fremont, CA (US);
Nataraj Bacthu, Sunnyvale, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, longest prefix matching (LPM) operations are performed on a value in multiple interspersed prefix length search spaces to determine an overall longest prefix matching result in a packet switching system. A first LPM lookup unit performs a first LPM operation on the particular lookup value in a first search space finding a first longest matching prefix, and a second LPM lookup unit performs a second LPM operation on the particular lookup value in a second search space finding a second longest matching prefix. The longer of the first and second longest matching prefixes determines the overall LPM. In one embodiment, the first search space and the second search space include non-default route prefixes with interspersed prefix lengths matching a same value, such as, but not limited to the particular lookup value (e.g., a destination address of a packet).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile