efm enable

Function

The efm enable command enables EFM globally or on an interface.

The undo efm enable command disables EFM globally or on an interface.

By default, EFM is disabled globally. That is, EFM is disabled on all interfaces.

Format

efm enable

undo efm enable

Parameters

None

Views

System view, 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

Before using EFM functions, you must enable EFM globally.

After EFM is enabled on an interface, the interface starts to send OAM PDUs to perform point-to-point EFM link detection. EFM link detection can be implemented between two interfaces only after EFM is enabled on the peer interface.

Precautions

When you use the undo efm enable command to disable EFM globally, the device deletes all EFM configurations. When the device is implementing remote loopback and sending a great deal of test packets, running the undo efm enable command will cause packets to be forwarded.

Eth-Trunks do not support EFM.

Example

# Enable EFM globally.

<HUAWEI> system-view
[HUAWEI] efm enable
Info: Operation succeeded.

# Enable EFM on Layer 2 interface GigabitEthernet0/0/1.

<HUAWEI> system-view
[HUAWEI] efm enable
Info: Operation succeeded.
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] efm enable
Info: Operation succeeded.

# Enable EFM on Layer 3 interface GigabitEthernet0/0/1.

<HUAWEI> system-view
[HUAWEI] efm enable
Info: Operation succeeded.
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo portswitch
[HUAWEI-GigabitEthernet0/0/1] efm enable
Info: Operation succeeded.