Method of seamless migration from scaleable OADM to a network switching node
US7254336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2003 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Oct 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0081
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method is provided for seamless migration from a scaleable optical add/drop multiplexer to a network switching node in an optical transport network. The method includes: providing a pre-deployed optical add/drop multiplexer (OADM) at a network node in the optical transport network; introducing an additional optical add/drop multiplexer (OADM) at the network node; and interconnecting the pre-deployed OADM to the additional OADM using a photonic cross-connect switch, where the photonic cross-connect switch is operable to route optical signals amongst the optical transport lines connected to the pre-deployed OADM and the upgraded OADM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.