Ring Topology-based Redundancy Ethernet for Industrial Network

Recently Ethernet system is getting very high attention for industrial network. Industrial customers are no longer satisfied with R5232 or R5485 data transmission; rather they are demanding the benefits of Ethernet connectivity. However the star topology of Ethernet is not flexible and not reliable for industrial network because of dependency on switch or hub. This paper proposes the redundancy Ethernet system based on ring topology without switch or hub. And also proposes the new topology adaptation network management protocol (TANMP). The topology of the proposed redundancy Ethernet system can be flexibly changed from the ring topology to the line (daisy-chained) topology or opposite case. And also guarantees transmission to its destination in spite of a link-fault. TANMP supports the simple hop count based routing function with high performance and manages network topology with minimum recovery time. In this paper, we implement the proposed TANMP and analysis performance of the proposed ring topology based redundancy Ethernet system for industrial network