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:
Jul. 06, 2010
Filed:
Sep. 18, 2003
Michael Smith, Morgan Hill, CA (US);
Ali Golshan, Palo Alto, CA (US);
Jeffrey Ym Wang, Saratoga, CA (US);
Neelima Mehta, Atlanta, GA (US);
Venkatesh Janakiraman, Sunnyvale, CA (US);
Michael Smith, Morgan Hill, CA (US);
Ali Golshan, Palo Alto, CA (US);
Jeffrey Ym Wang, Saratoga, CA (US);
Neelima Mehta, Atlanta, GA (US);
Venkatesh Janakiraman, Sunnyvale, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Method and devices are provided to form virtual switches for data networks. As noted above, the term 'switch' as used herein will apply to switches, routers and similar network devices. Each virtual switch acts as a single logical unit, while encompassing at least two physical chassis. Accordingly, each virtual switch may be treated as a single point of management. Each virtual switch includes a master chassis and at least one slave chassis. The master chassis is configured to control the slave chassis. The master chassis includes at least one master supervisor card and the slave chassis includes at least one slave supervisor card. The master chassis and the slave chassis communicate via a virtual switch link according to a virtual switch link protocol.