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:
Nov. 11, 2014
Filed:
Nov. 21, 2012
Kenneth Edward Neudorf, Carp, CA;
Richard Robb, Cupertino, CA (US);
Kelly Donald Fromm, Newman Lake, WA (US);
J. Kevin Seacrist, Spokane Valley, WA (US);
Kenneth Edward Neudorf, Carp, CA;
Richard Robb, Cupertino, CA (US);
Kelly Donald Fromm, Newman Lake, WA (US);
J. Kevin Seacrist, Spokane Valley, WA (US);
Ciena Corporation, Hanover, MD (US);
Abstract
A method, a statistics subsystem, and a system use a combination of commercially available high speed memory and high density low speed memory to mitigate cost, space, control, and power issues associated with storing counters for statistics updates, while meeting the growing width and depth needs of multi-hundred gigabit Carrier Class data network devices. The method, statistics subsystem, and system offer a Counter Management Algorithm (CMA) that relies on rollover bits stored within data of counters. An update to the low speed memory is substantially faster than a rollover time for the counter in the high speed memory thereby allowing statistics to be cached in the high speed memory while updates take place to the low speed memory.