This counter counts the number of bytes the shaper has replicated, i.e., duplicated onto multiple output paths such as for multicast distribution. An admin monitors this to confirm multicast or replicated traffic volumes match expectations, since a mismatch could indicate a replication feature under- or over-delivering copies. For example, if a multicast video service is failing on some receivers, an admin would check whether cmQosShaperStatsBR is increasing in step with the expected number of subscriber copies.