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. 27, 2015
Filed:
Aug. 25, 2011
Mohamed Elgendy, San Ramon, CA (US);
Gopakumar Choorakkot Edakkunni, San Jose, CA (US);
Micah Raphael Nishimura-simmons, Cloverdale, CA (US);
Kaushik K. Dam, Santa Clara, CA (US);
Shyamsundar N. Maniyar, San Jose, CA (US);
Larry Tzuchu Chang, Saratoga, CA (US);
Mohamed ElGendy, San Ramon, CA (US);
Gopakumar Choorakkot Edakkunni, San Jose, CA (US);
Micah Raphael Nishimura-Simmons, Cloverdale, CA (US);
Kaushik K. Dam, Santa Clara, CA (US);
Shyamsundar N. Maniyar, San Jose, CA (US);
Larry Tzuchu Chang, Saratoga, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, a logical packet switching device has its switching fabric extended between multiple physical devices, such as, but not limited to, over one or more networks (e.g., over tunnel(s), point-to-point link(s), and/or public and/or private L2 or L3 network(s)). In particular, one embodiment extends the switching fabric between multiple different physical devices by effectively merging, at least from the perspective of ingress and/or egress line cards, a switching fabric in each of these multiple different physical devices. In this regard, an ingress lookup operation in a first physical device of one embodiment produces information which is used by the switching fabric in a different physical device to forward a packet to the appropriate egress line card in the different physical device. Further, one embodiment includes line cards which can be used to both extend the switching fabric as well as communicate with packet switching and other devices that are independent of the logical packet switching device.