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:
Sep. 28, 1999
Filed:
Aug. 13, 1997
William D Croslin, Colorado Springs, CO (US);
Steve Sellers, Colorado Springs, CO (US);
Mark Sees, Plano, TX (US);
MCI Communications Corporation, Washington, DC (US);
Abstract
A method and system for initiating distributed restoration of a communications network following the failure of one or more network components. Restoration is conducted in a distributed fashion by all the restoration nodes of the network. When a restoration node detects failure of a segment connected to it, the restoration node monitors its segments for a period of time and then sends a failure message to other restoration nodes of the network indicating the number of segments connected to it that have failed. When restoration nodes receive failure messages, they compare the count of failed segments contained in the messages to a range of counts of failures for the detecting node that are locally stored on each restoration node. By this comparison, the restoration nodes can determine whether the network has quiesced to a relatively stable state following a network outage. Once the network has reached a stable state, all the restoration nodes simultaneously initiate a local restoration process.