The a-mpdu disable command disables the MAC protocol data unit (MPDU) aggregation function.
The undo a-mpdu disable command enables the MPDU aggregation function.
By default, the MPDU aggregation function is enabled.
To reduce costs, 802.11n uses MPDU aggregation technology that aggregates two or more frames into one frame for transmission.
The 802.11ac and 802.11ax protocols require that the A-MPDU aggregation mode be enabled. Therefore, this command takes effect only for 2.4 GHz and 5 GHz radios on 802.11n APs or 2.4 GHz radios on 802.11ac APs.