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. 26, 2011
Filed:
Jun. 12, 2002
Anna Charny, Sudbury, MA (US);
Robert Goguen, Acton, MA (US);
Carol Iturralde, Framingham, MA (US);
Elisheva Hochberg, Acton, MA (US);
Jean Philippe Vasseur, Lompret, FR;
Anna Charny, Sudbury, MA (US);
Robert Goguen, Acton, MA (US);
Carol Iturralde, Framingham, MA (US);
Elisheva Hochberg, Acton, MA (US);
Jean Philippe Vasseur, Lompret, FR;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Systems and methods for distinguishing a node failure from a link failure are provided. By strengthening the assumption of independent failures, bandwidth sharing among backup tunnels protecting links and nodes of a network is facilitated as well as distributed computation of backup tunnel placement. Thus a backup tunnel overlay network can provide guaranteed bandwidth in the event of a failure.