This read-write Integer32 counts received packets on this MP link that were interleaved with packets queued in the RTPQ (Real-time Transport Protocol Queue) or LLQ (Low Latency Queue), according to its source description. An admin reviews this counter to confirm that link-fragmentation-and-interleaving is actively mixing bulk multilink traffic with latency-sensitive queued traffic as configured, which matters for voice or other real-time flows sharing the bundle. For instance, a nonzero and steadily increasing count would confirm interleaving is occurring for a bundle carrying both VoIP and bulk data.