Grooming method and device for packet optical transport network
US9820020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2014 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Apr 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/009
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A grooming method and apparatus for a packet optical transport network are disclosed. The method includes: according to an arrangement order of various services, planning a path from a service source node to a service target node in an ith service in a topology set graph; when the path includes a wavelength link in a physical link, removing the wavelength link, and establishing a virtual link between a link source node and a link target node of the removed wavelength link; updating capacities of various links in the path; calculating a weight of a newly established virtual link, and adding the newly established virtual link and the corresponding weight to the topology set graph; and planning a path from a service source node to a service target node in an i+1th service in the topology set graph, until all services are finished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.