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Fat AP and Cloud AP V200R010C00 Command Reference

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mtu

mtu

Function

The mtu command sets the maximum transmission unit (MTU) value for the management VLANIF and CAPWAP on an RU.

The undo mtu command restores the default MTU value for the management VLANIF and CAPWAP on an RU.

By default, the MTU value of the management VLANIF and CAPWAP on an RU is 1500 bytes.

Format

mtu mtu-value

undo mtu

Parameters

Parameter

Description

Value

mtu-value

Specifies the maximum size of packets sent and received on the management VLANIF and CAPWAP.

The value is an integer that ranges from 128 to 1700, in bytes.

Views

AP system profile view

Default Level

2: Configuration level

Usage Guidelines

The MTU value is the maximum size of packets sent and received on the management VLANIF and CAPWAP of an RU.

Modifying the attributes of an AP system profile changes configurations of all RUs using this profile.

Precautions

  • DHCP packets cannot be fragmented. When the MTU value set using the mtu command is smaller than the DHCP packet length, DHCP packets cannot be forwarded. Therefore, set a larger MTU value.

  • If the MTU value is smaller than the DHCP packet length, the RU may be disconnected. In this case, restart the RU.

Example

# Set the MTU value of the management VLANIF and CAPWAP to 1700 bytes in the AP system profile.

<Huawei> system-view
[Huawei] wlan 
[Huawei-wlan-view] ap-system-profile name ap-system1
[Huawei-wlan-ap-system-prof-ap-system1] mtu 1700
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Updated: 2019-11-21

Document ID: EDOC1100064352

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