display cfm mep

Function

The display cfm mep command displays information about a maintenance association end point (MEP) in a specified maintenance domain (MD) and maintenance association (MA).

Format

display cfm mep [ md md-name [ ma ma-name [ mep-id mep-id ] ] ]

Parameters

Parameter	Description	Value
md md-name	Displays information about the MEPs in a specified MD. If md md-name is not specified, information about the MEPs in all MDs and MAs on the device is displayed.	md-name specifies the name of an MD. The value is a string of 1 to 43 characters. Question marks (?) are not supported.
ma ma-name	Displays information about the MEPs in a specified MA. If md-name is specified and ma-name is not specified, information about the MEPs in all MAs in the specified MD is displayed.	ma-name specifies the name of an MA. The value is a string of 1 to 43 characters. Question marks (?) are not supported.
mep-id mep-id	Displays information about a specified MEP.	mep-id specifies the ID of a MEP. The ID is an integer ranging from 1 to 8191.

Parameter

Description

Value

md md-name

Displays information about the MEPs in a specified MD. If md md-name is not specified, information about the MEPs in all MDs and MAs on the device is displayed.

md-name specifies the name of an MD. The value is a string of 1 to 43 characters. Question marks (?) are not supported.

ma ma-name

Displays information about the MEPs in a specified MA. If md-name is specified and ma-name is not specified, information about the MEPs in all MAs in the specified MD is displayed.

ma-name specifies the name of an MA. The value is a string of 1 to 43 characters. Question marks (?) are not supported.

mep-id mep-id

Displays information about a specified MEP.

mep-id specifies the ID of a MEP. The ID is an integer ranging from 1 to 8191.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
y1731	read

Usage Guidelines

Usage Scenario

After a MEP is configured or connectivity fault management (CFM) fails, you can run the display cfm mep command to check the configurations on the MEP.

Example

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

# Display information about the PW-based MEP with an ID of 1 in the MA named ma1 in the MD named md1.

<HUAWEI> display cfm mep md md1 ma ma1 mep-id 1
 MD Name            : md1
 MD Name Format     : string
 Level              : 0
 MA Name            : ma1
 MEP ID             : 1
 VLAN ID            : --
 VSI Name           : vsi
 L2VC ID            : --
 L2VPN Name         : --  CE ID              : --  CE Offset          : --
 Peer IP            : 10.9.9.9     
 VC ID              : 1
 CCM Send           : disabled
 Direction          : outward
 MAC Address        : 00e0-fc12-7880
 MEP Pe-vid         : --
 MEP Ce-vid         : --
 MEP Vid            : --
 Alarm Status       : none
 Alarm AIS          : enabled
 Alarm RDI          : enabled
 Bandwidth Receive  : false
 Bandwidth          : --

**Table 1** Description of the **display cfm mep** command output
Item	Description
MD Name	Name of the MD.
MD Name Format	Format of the MD name: no-md-name. dns. mac-address. string.
Level	Level of the MD. The value ranges from 0 to 7. A larger level indicates a higher priority.
MA Name	Name of the MA.
MEP ID	ID of the MEP.
MEP Pe-vid	Outer VLAN ID of the QinQ interface on which the MEP resides.
MEP Ce-vid	Inner VLAN ID of the QinQ interface on which the MEP resides.
MEP Vid	VLAN ID of the dot1q interface on which the MEP resides.
VLAN ID	ID of the VLAN associated with the MA.
VSI Name	Name of the virtual switching instance (VSI) associated with the MA.
L2VC ID	ID of the Layer 2 virtual circuit (L2VC) associated with the MA.
L2VPN Name	Name of the L2VPN associated with the MA.
CE ID	ID of the local CE associated with the MA.
CE Offset	ID of the remote CE associated with the MA.
Peer IP	Peer IP address.
VC ID	VC ID.
CCM Send	Whether the MEP is enabled to send continuity check messages (CCMs): enabled: The MEP is enabled to send CCMs. disabled: The MEP is disabled from sending CCMs.
Direction	Type of the MEP: inward: indicates an inward-facing MEP. An inward-facing MEP broadcasts 802.1ag packets in the VLAN associated with the MA but does not send the packets to the interface on which the MEP resides. outward: indicates an outward-facing MEP. An outward-facing MEP sends 802.1ag packets through the interface on which the MEP resides.
MAC Address	MAC address of the MEP. A MEP's MAC address can be a bridge MAC address or the MAC address of the interface on which the MEP resides, depending on the configured maintenance point (MP) MAC address model. If the shared MAC address model is configured, a MEP uses a bridge MAC address as its own MAC address. If the individual MAC address model is configured, a MEP uses the MAC address of the interface on which the MEP resides.
Alarm Status	The type of alarm: unexpectedMEGLevel: the MD level carried in a CCM sent by the RMEP was different from that specified on the MEP. unexpectedMEP: the remote ID is not included in the local RMEP list. MEP ID mismerge: an MD or MA name carried in a CCM sent by the RMEP was different from that specified on the MEP. unexpectedPeriod: The CCM interval carried in a CCM sent by the RMEP was different from that specified on the MEP. unexpectedMAC: The source MAC address carried in a CCM sent by the RMEP was different from the RMEP's MAC address specified on the MEP. LOC: The MEP received no CCM in a period of time 3.5 times the interval at which CCMs were sent. exceptionalMACstatus: TLV information carried in a CCM sent by the RMEP within a specified interval showed that the interface connecting the RMEP to the MEP became abnormal. RDI: the RMEP sent a CCM carrying the RDI flag with the value of 1 to the MEP.
Alarm RDI	Whether the remote defect indication (RDI) alarm function is enabled.
Alarm AIS	Whether the Alarm Indication Signal (AIS) alarm function is enabled.
Bandwidth Receive	Whether the ETH-BN receiving function is enabled on the MEP.
Bandwidth	Bandwidth data received by the MEP.