The main purpose of the HSR and PRP protocols is to provide zero fail-over time network redundancy (in comparision MRP has a fail-over time of a few 100 ms and STP/RSTP a few seconds).
The Raptor or MicroRaptor with an HSR-PRP line card supports the IEC 62439-3 standard (Industrial communication networks – High availability automation networks – Part 3: Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR)). Up to four HSR-PRP line cards can be inserted into the Raptor chassis providing up to eight HSR/PRP redundant interfaces.
The following document provides some information how to setup and monitor the redundant interfaces and networks from the CLI (Command Line Interface).
The commands used for setting up redundant interfaces are shown in the Configuration Commands section, while the section Informational Commands shows how to monitor the redundant interfaces. The section Clear Commands is to be used to clear counters to set a new starting point for collection information.