display efm

Function

The display efm command displays EFM OAM configurations on a specified interface or all interfaces.

Format

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

Parameters

Parameter	Description	Value
all	Displays EFM OAM configurations on all interfaces.	-
interface interface-type interface-number	Displays EFM OAM configurations on a specified interface.	interface-type specifies the type of an interface, which can be Ethernet or GE. interface-number specifies the number of an interface.

Parameter

Description

Value

all

Displays EFM OAM configurations on all interfaces.

interface interface-type interface-number

Displays EFM OAM configurations on a specified interface.

interface-type specifies the type of an interface, which can be Ethernet or GE. interface-number specifies the number of an interface.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
efm	read

Usage Guidelines

Usage Scenario

To view EFM OAM configurations on a specified interface or all interfaces, run the display efm command.

Prerequisites

EFM OAM has been globally enabled using the efm enable command in the system view.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display EFM OAM configurations on GE 0/1/1.

<HUAWEI> display efm interface gigabitethernet 0/1/1
----------------------------------------------------
  Interface:                     GigabitEthernet0/1/1
  EFM Enable Flag:               enable  
  Mode:                          active
  Loopback IgnoreRequest:        no
  OAMPDU MaxSize:                128
  OAMPDU Timeout:                300
  OAMPDU Interval:               100
  Parser:                        forward
  Multiplexer:                   forward
  ErrCodeNotification:           disable
  ErrCodePeriod:                 1
  ErrCodeThreshold:              1
  ErrFrameNotification:          enable
  ErrFramePeriod:                1
  ErrFrameThreshold:             1
  ErrFrameSecondNotification:    enable
  ErrFrameSecondPeriod:          60
  ErrFrameSecondThreshold:       1
  Hold Up Time:                  0 
  TriggerIfDown:                 disable
  TriggerMacRenew:               disable
  Remote MAC:                    --
  Remote EFM Enable Flag:        --
  Remote Mode:                   --
  Remote MaxSize:                --
  Remote Loopback IgnoreRequest: --
  Remote Parser:                 --
  Remote Multiplexer:            --
  ErrFramePeriodNotification:    disable
  ErrFramePeriodPeriod:          200000
  ErrFramePeriodThreshold:       1

**Table 1** Description of the **display efm** command output
Item	Description
EFM Enable Flag	Whether EFM OAM is enabled on the interface: disable: EFM OAM is disabled on the interface. enable: EFM OAM is enabled on the interface. If the value of the EFM Enable Flag field is disable, run the efm enable command in the system view and interface view to enable EFM.
Loopback IgnoreRequest	Whether the local interface ignores loopback requests.
OAMPDU MaxSize	Maximum size of an OAM PDU on the interface.
OAMPDU Interval	Interval at which OAM PDUs are sent on the interface.
OAMPDU Timeout	Timeout period for waiting for OAM PDUs on the interface.
Hold Up Time	Delay in changing the EFM OAM protocol status of the interface from Down to Up after a link connectivity fault is rectified. never indicates that the interface's EFM OAM protocol blocking status will never change to Up.
Remote MAC	MAC address of the remote interface.
Remote EFM Enable Flag	Whether EFM OAM is enabled on the remote interface: disable: EFM OAM is disabled on the remote interface. enable: EFM OAM is enabled on the remote interface.
Remote Mode	EFM OAM working mode of the remote interface: active: EFM OAM on the remote interface works in active mode. passive: EFM OAM on the remote interface works in passive mode.
Remote MaxSize	Maximum size of the OAM PDU on the remote interface.
Remote Loopback IgnoreRequest	Whether the remote interface ignores loopback requests sent by the local interface: --: The mode used for the remote interface to initiate a loopback request cannot be obtained. yes: The remote interface ignores loopback requests sent by the local interface. no: The remote interface processes loopback requests sent by the local interface.
Remote Parser	Remote parser: forward: A device is forwarding non-OAM PDUs to a lower sublayer. discard: A device is discarding non-OAM PDUs.
Remote Multiplexer	Remote multiplexer: forward: A device is forwarding non-OAM PDUs to a higher sublayer. loopback: A device is looping back non-OAM PDUs to a lower sublayer. discard: A device is discarding non-OAM PDUs.
Interface	Name of the interface with EFM OAM enabled.
Mode	EFM OAM working mode of the interface: active: EFM OAM on the interface works in active mode. passive: EFM OAM on the interface works in passive mode. If the interfaces connecting CE and PE both work in passive EFM mode, run the efm mode active command on one of the interfaces to change the working mode from passive to active.
ErrCodeNotification	Whether bit error detection is enabled on the interface: disable: Bit error detection is disabled on the interface. enable: Bit error detection is enabled on the interface.
ErrCodePeriod	Period during which bit errors are detected on the interface.
ErrCodeThreshold	Threshold for the number of bit errors detected on the interface.
ErrFrameNotification	Whether errored frame detection is enabled on the interface: disable: Errored frame detection is disabled on the interface. enable: Errored frame detection is enabled on the interface.
ErrFramePeriod	Period during which errored frames are detected on the interface.
ErrFrameThreshold	Threshold for the number of errored frames detected on the interface.
ErrFrameSecondNotification	Whether errored frame second detection is enabled on the interface: disable: Errored frame second detection is disabled on the interface. enable: Errored frame second detection is enabled on the interface.
ErrFrameSecondPeriod	Period during which errored frame seconds are detected on the interface.
ErrFrameSecondThreshold	Threshold for the number of errored frame seconds detected on the interface.
TriggerIfDown	Whether the interface is blocked if a fault is detected on the link between the interface and its remote interface: disable: The interface is not blocked if a fault is detected. enable: The interface is blocked if a fault is detected.
TriggerMacRenew	Whether the MAC is cleared if a fault is detected on the link between the interface and its remote interface: disable: The MAC is not cleared if a fault is detected. enable: The MAC is cleared if a fault is detected.
ErrFramePeriodNotification	Whether the interface is enabled to notify its peer device of errored frames that EFM periodically detects: enable. disable.
ErrFramePeriodPeriod	Interval at which EFM detects errored frames among a specified number of frames that the interface receives.
ErrFramePeriodThreshold	Threshold for EFM errored frame period detection on the interface.
Multiplexer	local Multiplexer.
Parser	local Parser.