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:
Sep. 23, 2008
Filed:
Oct. 21, 2002
John Patrick Jones, Westford, MA (US);
Michael Paul Demilia, Sterling, MA (US);
Ronald Mark Parker, Boxborough, MA (US);
Mehmet Hakan Duymazlar, Nashua, NH (US);
John Patrick Jones, Westford, MA (US);
Michael Paul Demilia, Sterling, MA (US);
Ronald Mark Parker, Boxborough, MA (US);
Mehmet Hakan Duymazlar, Nashua, NH (US);
Ciena Corporation, Linthicum, MD (US);
Abstract
Multi-service telecommunication switches which include enhanced component redundancy and which also allow multiple chassis connections to a switching fabric enhance the likelihood that packets transmitted to and from the switch will not be lost due do a particular component failure and also enable chassis stacking in a rack system. Such a multi-service telecommunication switch includes redundant physical layer adapter cards, redundant service cards, redundant timing modules, and redundant switching fabrics. Further, the multi-service telecommunication switch, includes an enhanced data flow distribution (load-balancing) architecture which enables multiple chassis connections to the switching fabrics.