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.

Date of Patent:
Dec. 07, 1999

Filed:

Jun. 30, 1997
Applicant:
Inventor:

William D Croslin, Colorado Springs, CO (US);

Assignee:

MCI Communications Corporation, Washington, DC (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
34082501 ; 370228 ; 370225 ; 370248 ; 395180 ;
Abstract

A restoration system for restoring a communications network following a failure of one or more communications network components. The restoration system identifies spare segments and spans of spare segments in the original network configuration, as well as interconnected sub-spans of the identified spans of spare segments. The restoration system assigns a cost to the identified spare spans and spare segments. The costs are based on the cost of connecting a spare span or a segment as part of a restoral route and the cost of fragmenting a spare span. The restoration system uses these assigned costs to select a low cost combination of spare segments and spare spans to use as the restoral route.


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