vht a-mpdu max-length-exponent

Function

The vht a-mpdu max-length-exponent command sets the maximum length of an aggregated MPDU (A-MPDU) on the 802.11ac radio. MPDU stands for MAC protocol data unit.

The undo vht a-mpdu max-length-exponent command restores the maximum length of an A-MPDU on the 802.11ac radio to the default value.

By default, the index for the maximum length of an A-MPDU is 7. The maximum length of the A-MPDU is 1048575 bytes.

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

Format

vht a-mpdu max-length-exponent max-length-exponent-index

undo vht a-mpdu max-length-exponent

Parameters

Parameter	Description	Value
max-length-exponent-index	Indicates the index for the maximum length of the A-MPDU.	The value is an integer that ranges from 0 to 7. 0: indicates that the maximum length of the A-MPDU is 8191 bytes. 1: indicates that the maximum length of the A-MPDU is 16383 bytes. 2: indicates that the maximum length of the A-MPDU is 32767 bytes. 3: indicates that the maximum length of the A-MPDU is 65535 bytes. 4: indicates that the maximum length of the A-MPDU is 131071 bytes. 5: indicates that the maximum length of the A-MPDU is 262143 bytes. 6: indicates that the maximum length of the A-MPDU is 524287 bytes. 7: indicates that the maximum length of the A-MPDU is 1048575 bytes.

Parameter

Description

Value

max-length-exponent-index

Indicates the index for the maximum length of the A-MPDU.

The value is an integer that ranges from 0 to 7.

0: indicates that the maximum length of the A-MPDU is 8191 bytes.
1: indicates that the maximum length of the A-MPDU is 16383 bytes.
2: indicates that the maximum length of the A-MPDU is 32767 bytes.
3: indicates that the maximum length of the A-MPDU is 65535 bytes.
4: indicates that the maximum length of the A-MPDU is 131071 bytes.
5: indicates that the maximum length of the A-MPDU is 262143 bytes.
6: indicates that the maximum length of the A-MPDU is 524287 bytes.
7: indicates that the maximum length of the A-MPDU is 1048575 bytes.

Views

5G radio profile view

Default Level

2: Configuration level

Usage Guidelines

To reduce costs, 802.11ac uses frame aggregation technology that aggregates two or more frames into an A-MPDU to transmit.

Example

# Set the index of the maximum length of the A-MPDU to 2 in the 5G radio profile default. The index 2 corresponds to a maximum length of 32767 bytes.

<HUAWEI> system-view
[HUAWEI] wlan
[HUAWEI-wlan-view] radio-5g-profile name default
[HUAWEI-wlan-radio-5g-prof-default] vht a-mpdu max-length-exponent 2