This counts PW packets that arrived out of sequence but were successfully put back into correct order by the receive-side jitter buffer before being replayed onto the TDM circuit. A high Reorder count on this pseudowire without a matching rise in Missorder or dropped traffic shows the jitter buffer is absorbing packet reordering from the underlying network, so the emulated circuit stays clean even though the network path clearly isn't delivering packets in strict order -- and this specific object covers a closed 15-minute history bin -- a fixed, final count for one completed interval rather than something still changing. For example, over that completed 15-minute bin, this pseudowire might show this counter at 12 -- a concrete count the admin can trend against neighboring bins to judge whether the condition it reflects is worsening.