vht a-msdu max-frame-num

Function

The vht a-msdu max-frame-num command sets the maximum number of subframes that can be aggregated into an A-MSDU at one time.

The undo vht a-msdu max-frame-num command restores the default maximum number of subframes that can be aggregated into an A-MSDU at one time.

By default, a maximum of two subframes can be aggregated into an A-MSDU at one time.

This command does not take effect on AirEngine series APs (except the AirEngine 5760-10).

vht a-msdu max-frame-num max-frame-number

undo vht a-msdu max-frame-num

Parameter	Description	Value
max-frame-number	Specifies the maximum number of subframes that can be aggregated into an A-MSDU at one time.	The value is an integer ranging from 2 to 15.

5G radio profile view

2: Configuration level

Usage Scenario

A-MSDU technology aggregates multiple MSDUs into an MPDU, which reduces MAC layer costs of the 802.11 packets.

When the wireless network quality is satisfactory, increase the maximum number of subframes that can be aggregated into an A-MSDU at one time to improve the network usage efficiency and wireless service performance.
When the wireless network quality is unsatisfactory or delay-sensitive services, such as voice services are transmitted, reduce the maximum number of subframes that can be aggregated into an A-MSDU at one time to minimize the impact of packet loss on services and reduce packet transmission delay. Some STAs have restrictions on the number of subframes aggregated into a received A-MSDU. If the number of subframes sent by the AP exceeds the threshold, the STAs cannot receive the frames properly.

Prerequisite

The function of sending 802.11 frames in A-MSDU mode has been enabled using the a-msdu enable command.

Precautions

The function of sending 802.11 frames in A-MSDU mode can only be enabled on the 802.11ac and 802.11ax radios.

# Set the maximum number of subframes that can be aggregated into an A-MSDU at one time to 3.

<HUAWEI> system-view
[HUAWEI] wlan
[HUAWEI-wlan-view] radio-5g-profile name default
[HUAWEI-wlan-radio-5g-prof-default] vht a-msdu max-frame-num 3