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:
Feb. 24, 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 stateless Path Computation Element (PCE) model. The stateless PCE model includes one or more PCEs configured to compute one or more path segments through the domains in response to a path computation request issued by, e.g., a Path Computation Client (PCC). Notably, each computed path segment is encrypted as a data structure to preserve confidentiality across the domains. Each PCE then cooperates to return a path computation response, including the encrypted path segments and an explicit route object (ERO) containing compressed path descriptions of the computed path segments, to the PCC.
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