display efm session

Function

The display efm session command displays information about an EFM session between the specified interface and the peer.

Format

display efm session { all | interface interface-type interface-number }

Parameters

Parameter	Description	Value
all	Displays information about EFM sessions between all interfaces configured with EFM and the peers.	-
interface-type interface-number	Displays information about the EFM session between the specified interface and the peer. interface-type specifies the interface type. interface-number specifies the interface number.	-

Parameter

Description

Value

all

Displays information about EFM sessions between all interfaces configured with EFM and the peers.

interface-type interface-number

Displays information about the EFM session between the specified interface and the peer.

interface-type specifies the interface type.
interface-number specifies the interface number.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

To check whether an EFM session configured on a device is negotiated successfully, run the display efm session command. The command output includes the EFM status and timeout interval of a loopback test.

If all is specified, information about all EFM sessions configured on the device is displayed.
If interface interface-type interface-number is specified, information about EFM sessions configured on a specified interface is displayed.

Prerequisites

EFM has been enabled globally using the efm enable command.

Example

# Display information about EFM sessions between all interfaces and the peers.

<HUAWEI> display efm session all

Interface                 EFM State                   Loopback Timeout
----------------------------------------------------------------------
GigabitEthernet0/0/1      discovery                   --

**Table 1** Description of the display efm session command output
Item	Description
Interface	Interface name.
EFM State	EFM protocol status on the interface: disabled: The EFM protocol is disabled on the interface. discovery: The interface is in OAM discovery state. detect: The interface is in Detect state. loopback (control): The interface initiates remote loopback and discards the packets looped back. loopback (be controlled): The interface responds to remote loopback.
Loopback Timeout	Timeout interval of a loopback test.