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S12700 V200R013C00 Command Reference

This document describes all the configuration commands of the device, including the command function, syntax, parameters, views, default level, usage guidelines, examples, and related commands.
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vht a-msdu max-frame-num

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.

Format

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

undo vht a-msdu max-frame-num

Parameters

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.

Views

5G radio profile view

Default Level

2: Configuration level

Usage Guidelines

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 vht a-msdu enable command.

Precautions

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

Example

# 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
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Updated: 2019-04-09

Document ID: EDOC1100065659

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