Transmission device and switchover processing method
US8462652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2010 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Jun 23, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/069
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an optical transmission device, firmware that operates within a CPU of a first LIU and firmware that operates within a CPU of a second LIU periodically measure a load status of a CPU via an OS, respectively. Switchover control of a master CPU is performed according to a load status of a CPU measured by the firmware of each LIU. For example, when a load status of the CPU of the second LIU is lower than that of the CPU of the first LIU, a master CPU that performs switchover control of a predetermined port is switched to a slave CPU in the first LIU, and a slave CPU related to the predetermined port is switched to a master CPU in the second LIU, thereby dynamically changing the setting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.