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:
Aug. 14, 2012
Filed:
Jul. 01, 2010
Krishnamurthy Subramanian, Mountain View, CA (US);
Raja Jayakumar, Fremont, CA (US);
Janardhanan P. Narasimhan, Chennai, IN;
Krishnamurthy Subramanian, Mountain View, CA (US);
Raja Jayakumar, Fremont, CA (US);
Janardhanan P. Narasimhan, Chennai, IN;
Force10 Networks, Inc., San Jose, CA (US);
Abstract
A stacked chassis comprising multiple physical switch/router chassis operates without any special stacking hardware or stacking channels. Instead, a stacking LAG is installed between front-end switch ports on the stacked chassis. The chassis controllers negotiate a master, which controls operation of all chassis in the stack. A stacked-chassis-wide port numbering scheme is used to distribute information to all line cards in the system. Each line card processes the information to distill physical-chassis significant information for operation of that chassis in the stack.