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This draft standard defines the medium access control characteristics, physical layerinterface methods and layer management parameters for the resilient packet ring (RPR) accessmethod for ring topologies. A set of protocols for detecting and initializing the shared ring configuration,recovering from failures, and regulating fair access to the shared medium are alsodescribed. Specifications are provided for interface to a number of physical layers, supporting datarates up to 10 Gb/s. System considerations and management information base (MIB) specificationsare also provided in this standard.