Read-only counter of how many new-PIM-neighbor-discovered events have occurred on this router, incremented each time a new neighbor comes up; a rising count during steady-state operation (rather than at startup) can indicate a flapping adjacency worth investigating. Note: the source MIB's own DESCRIPTION text for this object literally says the counter increments 'whenever a hwPimNeighborLoss notification would be generated' -- that sentence appears to be copy-pasted from the neighboring hwPimNeighborLossCount object's description just above it in the MIB and describes the wrong event; based on this object's name and its first descriptive sentence, it actually counts new-neighbor discoveries, not neighbor losses. Discontinuities can occur across a reboot/reinitialization.