Architectures for evolving traditional service provider networks and methods of optimization therefor
US6870813B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2000 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Dec 1, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/56
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention discloses novel network architectures for evolving traditional service provider networks. The network architecture of the invention has a transport layer including an optical network. At least one node of the network architecture includes a large packet switch that is coupled to the transport layer and to an access layer. The large packet switch aggregates a plurality of services from the access layer. The large packet switch also performs packet level grooming of the information from the services prior to transport of the information via the transport layer. The optical network performs restoration for the network architecture. In one embodiment, the optical network is an optical ring network including at least one optical switch and restoration is performed at the layer-0 (optical layer). In another embodiment, the optical network is a bi-directional line-switched ring (BLSR) utilizing a Synchronous Optical Network (SONET) standard and restoration is performed by the layer-1 (SONET layer). The network architectures of the invention by utilizing a large packet switch to perform service aggregation and packet level grooming, and by performing restoration eithe…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.