The (conceptual) table listing the PIM mode and RP address (if any) in use for each multicast group address. See the pimGroupMappingTable for the algorithm that DC-PIM uses to determine the PIM mode and RP address for a given multicast group address. DC-PIM runs this algorithm in full (including the per group algorithm specified by pimTmEntRPMultipathAlgorithm if necessary) when populating a row in the pimGroupAddrMappingTable. There is a row in this table for every possible multicast group address, whether or not any state exists for the group in question. It is only possible to read a specific row from the table, and 'get next' operations are not allowed. If pimTmEntMode is set to 'mgmd-snooping' or 'mgmd-proxy', then reading this table has no meaning.