Network system having function of changing route upon failure
October 3, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesData transmission system with a link problem determination aid (LPDA) support for all ports Restoration in communications networks Standby router protocol Searching system for determining alternative routes during failure in a network of links and nodes Method and apparatus for storing and retrieving routing information in a network node Distributed device status in a clustered system environment Multi-server fault tolerance using in-band signalling Fail-fast, fail-functional, fault-tolerant multiprocessor system Fault-tolerant bridge/router with a distributed switch-over mechanism Fault tolerant multiple network servers InventorsAssigneeApplicationNo. 677597 filed on 10/03/2000US Classes:714/56, Bus or I/O channel device fault714/4, Of network714/25, Fault locating (i.e., diagnosis or testing)714/43, Bus, I/O channel, or network path component fault714/47Performance monitoring for fault avoidanceExaminersPrimary: Wright, Norman M.Attorney, Agent or FirmForeign Patent References
International ClassH02H 003/05Foreign Application Priority Data1996-04-05 JPAbstractA network system has a plurality of networks. A first internetwork apparatus has a plurality of first ports each connected to the plurality of networks and a second internetwork apparatus has a plurality of second ports each connected to the plurality of networks. A data transmission path is connected to the first and second internetwork apparatuses to transmit data therebetween. In the normal state, each of the plurality of first ports is able to transmit and receive data to and from one of the plurality of networks while the plurality of second ports are able to transmit, but not receive data from the plurality of networks. A failure occurring in one of the plurality of first ports and a route therefrom to one of the plurality of networks is detected. | |
