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:
May. 17, 2005
Filed:
Jul. 30, 2001
Lior Shabtay, Ganai Tikva, IL;
Yoram Shamir, Kriat Ono, IL;
Leonid Shmulevich, Rechovot, IL;
Ofir Friedman, Rishon Letzion, IL;
Yaron Raz, Ramot Meir, IL;
Zacky Pickholz, Tel Aviv, IL;
Lior Shabtay, Ganai Tikva, IL;
Yoram Shamir, Kriat Ono, IL;
Leonid Shmulevich, Rechovot, IL;
Ofir Friedman, Rishon Letzion, IL;
Yaron Raz, Ramot Meir, IL;
Zacky Pickholz, Tel Aviv, IL;
Atrica Ireland Ltd., Dublin, IE;
Abstract
A path reroute mechanism for use in communication networks comprising multiple searches for a routing path to restore traffic following a failure that could not be protected by a previously established protection route (i.e. protection tunnel, bypass, etc.) or for routing or rerouting of traffic paths for optimization or any other purpose. Each node advertises TLVs that include bandwidth allocation information used to derive the actual amount of bandwidth available for protection purposes, protected paths and unprotected paths or a portion of this information such as in the case where unprotected paths are not supported. Searches are performed on larger and larger portions of the available bandwidth until a route for the path is found.