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. 07, 2009
Filed:
Nov. 05, 2004
Jean-philippe Vasseur, Dunstable, MA (US);
Richard Bradford, Westford, MA (US);
Jean-Philippe Vasseur, Dunstable, MA (US);
Richard Bradford, Westford, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A technique retrieves computed path segments across one or more domains of a computer network in accordance with a stateful ('semi-stateful') path computation element (PCE) model. The stateful PCE model includes a data structure configured to store one or more path segments computed by a PCE in response to a path computation request issued by a Path Computation Client (PCC). Notably, each computed path segment stored in the data structure is identified by an associated path-key value ('path key'). The path segment and path key contents of the data structure are temporarily saved (“cached”) at a predetermined location in the network for a configurable period of time.