Multiplex router device comprising a function for controlling a traffic occurrence at the time of alteration process of a plurality of router calculation units
US6049524A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1998 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Nov 19, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multiplex router device, having a multiplex configuration, is instrumental in reducing internal and external traffic flows for a routing protocol process that occurs at a time of system switchover. A data base integration module, in a route calculation unit in the active mode, stores network link-state information collected by a routing protocol packet transmission-reception module in a link-state data base, and at the same time sends the information to a route calculation unit, but does not send routing protocol information collected. In the route calculation unit in the standby mode, a data base integration module that received the network link-state information stores its contents into its own link-state data base. When a failure occurs in the route calculation unit in the active mode, the route calculation unit performs the routing protocol process by using the stored link-state data base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.