This is the average of the periodic packet-delta samples UCS Manager took across the current reporting interval for this object. It matters on an archived historical sample row of that same receive-counter set, kept purely for trending past intervals rather than showing the current live value because it is the steadier figure to trend over time, since a single delta sample can be skewed by one short burst. A totalPacketsDeltaAvg holding around 8,000 packets per sample on the endpoint this history row belongs to week over week is the baseline an admin would use to notice a gradual, rather than sudden, increase in load.