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:
Mar. 10, 2009
Filed:
Dec. 29, 2000
Ali N. Saleh, Ft. Lauderdale, FL (US);
H. Michael Zadikian, McKinney, TX (US);
Zareh Baghdasarian, Richardson, TX (US);
Vahid Parsi, Richardson, TX (US);
Ali N. Saleh, Ft. Lauderdale, FL (US);
H. Michael Zadikian, McKinney, TX (US);
Zareh Baghdasarian, Richardson, TX (US);
Vahid Parsi, Richardson, TX (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method for restoring a virtual path, provisioned between a source and a target node, in a mesh zoned optical network is described. The method, in one embodiment, broadcasts or floods restore path requests in the network to expedite the identification of an alternate route and minimize the service disruption for failed virtual path. The flooding of requests is controlled to ensure efficient performance of the network yet guaranteeing minimum restoration time to allow critical telecommunication related traffic to flow through the network with virtually no interruption. The constant update of nodal topology by each node allows a fast identification of alternate physical path for failed virtual path.