efm packet max-size

Function

The efm packet max-size command sets the maximum size of an EFM OAMPDU on an interface. All EFM OAMPDUs that exceed the maximum size on an interface are discarded as invalid packets.

The undo efm packet max-size command restores the default maximum size of an EFM OAMPDU on an interface.

By default, the maximum size of an EFM OAMPDU on an interface is 128 bytes.

Format

efm packet max-size size

undo efm packet max-size

Parameters

Parameter	Description	Value
size	Specifies the maximum size of an EFM OAMPDU. The size contains the length of Layer 2 frame header and the length of the cyclic redundancy check (CRC) field.	The value is an integer that ranges from 64 to 1518, in bytes. The default value is 128 bytes.

Views

Ethernet interface view, GE interface view, XGE interface view, 25GE interface view, 40GE interface view, 100GE interface view, MultiGE interface view, port group view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

You can run the efm packet max-size command to adjust the maximum size of an EFM OAMPDU so that non-Huawei devices can communicate.

Prerequisites

EFM has been enabled globally using the efm enable command.

Precautions

The local device and the peer determine the actual value of the maximum size of an EFM OAMPDU through negotiation. The smaller maximum size of an EFM OAMPDU set on the local interface or the peer is used.

Example

# Set the maximum size of an EFM OAMPDU on Layer 2 interface GigabitEthernet0/0/1 to 120 bytes.

<HUAWEI> system-view
[HUAWEI] efm enable
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] efm packet max-size 120

# Set the maximum size of an EFM OAMPDU on Layer 3 interface GigabitEthernet0/0/1 to 120 bytes.

<HUAWEI> system-view
[HUAWEI] efm enable
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo portswitch
[HUAWEI-GigabitEthernet0/0/1] efm packet max-size 120