Method and system for allocating protection path resources
US6904462B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2001 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Dec 2, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An embodiment of the invention is a method of allocating protection path resources including defining a working path and obtaining a link vector for each of a plurality of protection paths. The link vector includes a plurality of link vector elements. A proposed link vector is determined for each of the protection paths. The proposed link vector includes a plurality of proposed link vector elements and is indicative of allocating a respective protection path to the working path. A maximum link vector element is determined and a maximum proposed link vector element is determined. A link cost is determined based on a difference between the maximum proposed link vector element and the maximum link vector element. A path cost is determined for at least two protection paths based on a sum of link costs associated with a respective protection path. One of the at least two protection paths having the minimum path cost is selected to provide protection for the working path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.