vlan vlan-list: Specifies the VLANs where the EAIS frames can be transmitted. The vlan-list argument specifies a space-separated list of up to 10 VLAN items. Each item specifies a VLAN ID or a range of VLAN IDs in the form of vlan-id [ to vlan-id ]. The value range for VLAN IDs is 1 to 4094.

Usage guidelines

The EAIS frames are transmitted within the intersection of the VLANs specified with this command and the existing VLANs on the device.

If the command is executed multiple times, the combination of the VLANs specified in each command takes effect.

Follow these guidelines when you use the command:

· Configurations in Ethernet interface view take effect only on the current interface.

· Configurations in aggregate interface view take effect only on the current aggregate interface.

· Configurations on a member port take effect only when the member port leaves the aggregation group.

Examples

# On port GigabitEthernet 1/0/1, specify VLANs 100 through 200 as the VLANs where the EAIS frames can be transmitted.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] cfd ais-track link-status vlan 100 to 200

Related commands

cfd ais-track link-status global

cfd ais-track link-status level

cfd ais-track link-status period

cfd cc enable

Use cfd cc enable to enable CCM sending on a specified MEP.

Use undo cfd cc enable to disable CCM sending on a specified MEP.

Syntax

cfd cc service-instance instance-id mep mep-id enable

undo cfd cc service-instance instance-id mep mep-id enable

Default

The CCM sending feature is disabled.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

mep mep-id: Specifies a MEP by its ID in the range of 1 to 8191.

Usage guidelines

Follow these guidelines when you use the command:

· Configurations in Ethernet interface view take effect only on the current interface.

· Configurations in aggregate interface view take effect only on the current aggregate interface.

· If the MEP belongs to an MA that does not carry the VLAN attribute, configurations on a member port of an aggregation group view take effect only on the current member port.

· If the MEP belongs to an MA that carries the VLAN attribute, configurations on a member port of an aggregation group take effect only when the member port leaves the aggregation group.

Examples

# On port GigabitEthernet 1/0/1, enable CCM sending on MEP 3 in service instance 5.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] cfd cc service-instance 5 mep 3 enable

Related commands

cfd cc interval

Use cfd cc interval to set the value of the interval field in the CCM messages.

Use undo cfd cc interval to remove the value of the interval field in the CCM messages.

Syntax

cfd cc interval interval-value service-instance instance-id

undo cfd cc interval [ interval-value ] service-instance instance-id

Default

The value of this field is 4 for all CCM messages sent.

Views

System view

Predefined user roles

network-admin

Parameters

interval interval-value: Specifies the value of the interval field in CCM messages. The value range for the interval field is 1 to 7. If you set the value to 1 or 2, the continuity check might work incorrectly due to hardware restrictions.

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

Usage guidelines

When setting the CCM interval, use the settings described in Table 1.

Table 1 CCM interval field encoding

CCM interval field	Transmission interval	Maximum CCM lifetime
1	10/3 milliseconds	35/3 milliseconds
2	10 milliseconds	35 milliseconds
3	100 milliseconds	350 milliseconds
4	1 second	3.5 seconds
5	10 seconds	35 seconds
6	60 seconds	210 seconds
7	600 seconds	2100 seconds

Examples

# Set the value of the interval field to 3 in CCM messages sent by MEPs in service instance 2.

<Sysname> system-view

[Sysname] cfd cc interval 3 service-instance 2

Related commands

cfd cc enable

cfd dm one-way

Use cfd dm one-way to enable one-way delay measurement (DM).

Syntax

cfd dm one-way service-instance instance-id mep mep-id { target-mac mac-address | target-mep target-mep-id } [ number number ]

Views

Any view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

mep mep-id: Specifies the source MEP by its ID in the range of 1 to 8191.

target-mac mac-address: Specifies the target MEP by its bridge MAC address in the format of H-H-H.

target-mep target-mep-id: Specifies the target MEP by its ID in the range of 1 to 8191.

number number: Specifies the number of 1DM frames sent. The value range for the number argument is 2 to 10, and the default is 5.

Usage guidelines

The one-way DM function measures the one-way frame delay between the source and target MEPs by using 1DM frames.

To view the bridge MAC address of a target MEP, use the display lacp system-id command on the target MEP.

To view the one-way delay test result, use the display cfd dm one-way history command on the target MEP.

Examples

# Enable the one-way DM function to test the one-way frame delay from source MEP 1101 to target MEP 1003 in service instance 1.

<Sysname> cfd dm one-way service-instance 1 mep 1101 target-mep 1003

5 1DMs have been sent. Please check the result on the remote device.

Related commands

display cfd dm one-way history

reset cfd dm one-way history

cfd dm two-way

Use cfd dm two-way to enable two-way DM.

Syntax

cfd dm two-way service-instance instance-id mep mep-id { target-mac mac-address | target-mep target-mep-id } [ dot1p dot1p-value ] [ number number ] [ interval interval ]

Views

Any view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

mep mep-id: Specifies the source MEP by its ID in the range of 1 to 8191.

target-mac mac-address: Specifies the target MEP by its bridge MAC address, which is in the format of H-H-H.

target-mep target-mep-id: Specifies the target MEP by its ID in the range of 1 to 8191.

dot1p dot1p-value: Specifies an 802.1p priority for DMM frames. The value range for the dot1p-value argument is 0 to 7. The default value is 7.

number number: Specifies the number of DMM frames to be sent. The value range for the number argument is 2 to 10, and the default is 5.

interval interval: Specifies the DMM frame sending interval, in seconds. The value takes 1 or 10. The default value is 1.

Usage guidelines

The two-way DM function measures the two-way frame delay between the source and target MEPs by using DMM frames and DMR frames.

To view the bridge MAC address of a target MEP, use the display lacp system-id command on the target MEP.

Examples

# Enable the two-way DM function to test the two-way frame delay between source MEP 1101 and target MEP 2001 in service instance 1.

<Sysname> cfd dm two-way service-instance 1 mep 1101 target-mep 2001

Frame delay:

Reply from 0010-fc00-6512: 2406us

Reply from 0010-fc00-6512: 2215us

Reply from 0010-fc00-6512: 2112us

Reply from 0010-fc00-6512: 1812us

Reply from 0010-fc00-6512: 2249us

Average: 2158us

Sent DMMs: 5 Received: 5 Lost: 0

Frame delay variation: 191us 103us 300us 437us

Average: 257us

Table 2 Command output

Field	Description
Reply from 0010-fc00-6512	Delay of the DMR frames returned from the MEP with MAC address 0010-FC00-6512.
Average	Average frame delay or average frame delay variation.
Sent DMMs	Number of sent DMM frames .
Received	Number of received DMR frames.
Lost	Number of lost DMM frames.

cfd enable

Use cfd enable to enable CFD.

Use undo cfd enable to disable CFD.

Syntax

cfd enable

undo cfd enable

Default

CFD is disabled.

Views

System view

Predefined user roles

network-admin

Examples

# Enable CFD.

<Sysname> system-view

[Sysname] cfd enable

cfd hardware-cc

Use cfd hardware-cc to enable hardware CC.

Use undo cfd hardware-cc to disable hardware CC.

Syntax

cfd hardware-cc service-instance instance-id remote-mep mep-list

undo cfd hardware-cc service-instance instance-id remote-mep mep-list

Default

Hardware CC is disabled.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

remote-mep mep-list: Specifies remote MEPs. The mep-list argument specifies a space-separated list of up to 10 MEP items. Each item specifies a MEP ID or a range of MEP IDs in the form of mep-id [ to mep-id ]. The value range for MEP IDs is 1 to 8191.

Examples

# Enable hardware CC on GigabitEthernet 1/0/1 to detect remote MEP 5 in service instance 1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] cfd hardware-cc service-instance 1 remote-mep 5

cfd linktrace

Use cfd linktrace to identify the path between the source MEP and target MP.

Syntax

cfd linktrace service-instance instance-id mep mep-id { target-mac mac-address | target-mep target-mep-id } [ ttl ttl-value ] [ hw-only ]

Views

Any view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

mep mep-id: Specifies the source MEP by its ID in the range of 1 to 8191.

target-mac mac-address: Specifies the target MEP by its bridge MAC address, in the format of H-H-H.

target-map target-mep-id: Specifies the target MEP by its ID in the range of 1 to 8191.

ttl ttl-value: Specifies the TTL value in the range of 1 to 255. The default value is 64.

hw-only: Sets the hw-only bits of the LTMs sent. If you specify this keyword, the MIP does not flood LTMs that have an unknown destination MAC address.

Usage guidelines

This command identifies the path between the source MEP and target MP by using LTMs and LTRs.

To view the bridge MAC address of a target MEP, use the display lacp system-id command on the target MEP.

Examples

# Identify the path between source MEP 1101 and target MEP 2001 in service instance 1.

<Sysname> cfd linktrace service-instance 1 mep 1101 target-mep 2001

Linktrace to MEP 2001 with the sequence number 1101-43361:

MAC address TTL Last MAC Relay action

0010-fc00-6512 63 0010-fc00-6500 Hit

Table 3 Command output

Field	Description
Linktrace to MEP 2001 with the sequence number 1101-43361	Linktrace to target MEP 2001 with the sequence number 1101-43361.
MAC address	Source MAC address in the LTRs.
TTL	TTL of the LTM when it passes the device.
Last MAC	MAC address of the last-hop device the LTM passes.
Relay action	Indicates whether the forwarding device found the destination MAC address in its MAC address table. When the standard version (IEEE 802.1ag) of CFD is used: · Hit—The current device is the destination device. · FDB—The forwarding device found the destination MAC address. · MPDB—The destination MAC address is not found, or the destination MAC address is found in the MEP or MIP database.

Related commands

cfd linktrace auto-detection

display cfd linktrace-reply

cfd linktrace auto-detection

Use cfd linktrace auto-detection to enable automatic sending of LTMs.

Use undo cfd linktrace auto-detection to disable automatic sending of LTMs.

Syntax

cfd linktrace auto-detection [ size size-value ]

undo cfd linktrace auto-detection

Default

Automatic sending of LTMs is disabled.

Views

System view

Predefined user roles

network-admin

Parameters

size size-value: Specifies the size of the buffer used to store the auto-detection result, in the range of 1 to 100 (in terms of auto-detection times). The default value is 5, which means the buffer stores the results of the recent five auto-detections.

Usage guidelines

This command enables the source MEP to send LTMs when it fails to receive CCMs from the target MEP within 3.5 times the sending interval. The destination of the LTMs is the target MEP, and the TTL field value is 255. Based on the returned LTRs, the fault source can be located on the faulty link.

If you disable automatic LTM sending, the content stored in the buffer will be removed.

Examples

# Enable automatic LTM sending, and set the size of the buffer used to store the auto-detection result to 100 (in terms of auto-detection times).

<Sysname> system-view

[Sysname] cfd linktrace auto-detection size 100

Related commands

cfd linktrace

display cfd linktrace-reply auto-detection

cfd loopback

Use cfd loopback to enable loopback (LB).

Syntax

cfd loopback service-instance instance-id mep mep-id { target-mac mac-address | target-mep target-mep-id } [ number number ]

Views

Any view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

mep mep-id: Specifies the source MEP by its ID in the range of 1 to 8191.

target-mac mac-address: Specifies the target MEP by its bridge MAC address, in the format of H-H-H.

target-mep target-mep-id: Specifies the target MEP by its ID in the range of 1 to 8191.

number number: Specifies the number of the sent LBMs packets. The value is in the range of 1 to 10. The default value is 5.

Usage guidelines

The LB function verifies link connectivity between the source MEP and the target MP by using LBMs and LBRs.

To view the bridge MAC address of a target MEP, use the display lacp system-id command on the target MEP.

Examples

# Enable LB for the link between MEP 1101 and MEP 2001 in service instance 1 (assume that the link status is normal).

<Sysname> cfd loopback service-instance 1 mep 1101 target-mep 2001

Loopback to MEP 2001 with the sequence number start from 1101-43404:

Reply from 0010-fc00-6512: sequence number=1101-43404 Time=5ms

Reply from 0010-fc00-6512: sequence number=1101-43405 Time=5ms

Reply from 0010-fc00-6512: sequence number=1101-43406 Time=5ms

Reply from 0010-fc00-6512: sequence number=1101-43407 Time=5ms

Reply from 0010-fc00-6512: sequence number=1101-43408 Time=5ms

Sent: 5 Received: 5 Lost: 0

# Enable LB for the link between MEP 1101 and MEP 2001 in service instance 1 (assume that the link status is abnormal).

<Sysname> cfd loopback service-instance 1 mep 1101 target-mep 2001

Loopback to MEP 2001 with the sequence number start from 1101-43404:

Sent: 5 Received: 0 Lost: 5

Table 4 Command output

Field	Description
Loopback to MEP 2001 with the sequence number start from 1101-43404	Sends LBMs to remote MEP 2001 with the sequence number starting with 1101-43404.
Reply from 0010-fc00-6512	Reply from the MP with the MAC address 0010-FC00-6512.
sequence number	Sequence number in the LBR messages.
Time=5ms	The interval between the sending of LBMs and receiving of LBRs is 5 milliseconds.
Sent	Number of sent LBMs.
Received	Number of received LBRs.
Lost	Number of lost LBRs.

cfd md

Use cfd md to create an MD.

Use undo cfd md to delete an MD.

Syntax

cfd md md-name [ index index-value ] level level-value [ md-id { dns dns-name | mac mac-address subnumber | none } ]

undo cfd md md-name

Default

No MDs exist.

Views

System view

Predefined user roles

network-admin

Parameters

md md-name: Specifies the name of an MD, which is a string of 1 to 43 characters that can contain letters, numbers, and special characters such as grave accent (`), tilde (~), exclamation mark (!), at sign (@), number sign (#), dollar sign ($), percent (%), caret (^), ampersand (&), asterisk (*), brackets ({ }, ( ),[ ], < >), hyphen (-), underscore (_), plus (+), equal sign (=), vertical bar (|), colon (:), semicolon (;), quotation mark ('), comma (,), period (.), and slash (/).

index index-value: Specifies an MD index in the range of 1 to 4294967295. If you do not specify this option, the system automatically assigns the smallest index number that is not in use. As a best practice, use the index automatically assigned by the system.

level level-value: Specifies an MD level in the range of 0 to 7.

md-id: Specifies the MD name carried by packets sent by the MEP. If you do not provide this keyword, the MD name is represented by md-name.

dns dns-name: Specifies an MD name in the format of DNS name, where dns-name represents the DNS name.

mac mac-address subnumber: Specifies an MD name containing the MAC address and an integer. The mac-address argument represents the MAC address of the MD, and the subnumber argument is in the range of 0 to 65535.

none: Specifies that no MD name is carried in the packets sent by the MEP.

Usage guidelines

An MD name must be in compliant with the specifications in IEEE802.1ag-2007.

You can create only one MD with a specific level. MD cannot be created if you enter an invalid MD name or an existing MD name or the MD index is in use.

When deleting an MD, you will also delete the configurations related to that MD.

Examples

# Create an MD named test_md1, with its level being 3.

<Sysname> system-view

[Sysname] cfd md test_md1 level 3

# Create an MD named test_md2, and the MD name carried in the packet sent by the MEP comprises the MAC address 1-1-1 and integer 1.

<Sysname> system-view

[Sysname] cfd md test_md2 level 5 md-id mac 1-1-1 1

cfd mep

Use cfd mep to create a MEP.

Use undo cfd mep to delete a MEP.

Syntax

cfd mep mep-id service-instance instance-id { inbound | outbound }

undo cfd mep mep-id service-instance instance-id

Default

No MEPs exist.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

mep mep-id: Specifies the MEP ID, in the range of 1 to 8191.

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

inbound: Creates an inward-facing MEP.

outbound: Creates an outward-facing MEP.

Usage guidelines

In creating a MEP, the service instance you specified defines the MD and MA to which the MEP belongs.

You cannot create a MEP if the MEP ID is not included in the MEP list of the relevant service instance.

Follow these guidelines when you use the command:

· Configurations in Ethernet interface view take effect only on the current interface.

· Configurations in aggregate interface view take effect only on the current aggregate interface.

· If the MEP belongs to an MA that does not carry the VLAN attribute, configurations on a member port of an aggregation group take effect only on the current member port.

· If the MEP belongs to an MA that carries the VLAN attribute, configurations on a member port of an aggregation group take effect only when the member port leaves the aggregation group.

Examples

# Configure a MEP list in service instance 5, and create inward-facing MEP 3 in service instance 5 on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] cfd md test_md level 3

[Sysname] cfd service-instance 5 ma-id vlan-based md test_md vlan 100

[Sysname] cfd meplist 3 service-instance 5

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] cfd mep 3 service-instance 5 outbound

Related commands

cfd meplist

Use cfd meplist to create a MEP list.

Use undo cfd meplist to delete a MEP list.

Syntax

cfd meplist mep-list service-instance instance-id

undo cfd meplist mep-list service-instance instance-id

Default

No MEP list is created.

Views

System view

Predefined user roles

network-admin

Parameters

meplist mep-list: Specifies a space-separated list of up to 10 MEP items. Each item specifies a MEP ID or a range of MEP IDs in the form of mep-id 1 to mep-id 2. The value range for the MEP ID is 1 to 8191. The mep-id 2 must be equal to or greater than mep-id 1.

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

Usage guidelines

A MEP list is a collection of local MEPs allowed to be configured and the remote MEPs to be monitored in the same MA.

Before creating a MEP list, create the relevant MD and service instance.

After you delete a MEP list, all local MEP configurations based on this list are deleted.

Examples

# Create a MEP list that includes MEP 9 through MEP 15 in service instance 5.

<Sysname> system-view

[Sysname] cfd md test_md level 3

[Sysname] cfd service-instance 5 ma-id vlan-based md test_md vlan 100

[Sysname] cfd meplist 9 to 15 service-instance 5

Related commands

cfd md

cfd service-instance

cfd mip-rule

Use cfd mip-rule to configure the rules for generating MIPs.

Use undo cfd mip-rule to remove the rules for generating MIPs and the MIPs created in a service instance.

Syntax

cfd mip-rule { default | explicit } service-instance instance-id

undo cfd mip-rule [ default | explicit ] service-instance instance-id

Default

No rules for generating MIPs are configured and the system does not automatically generate any MIPs.

Views

System view

Predefined user roles

network-admin

Parameters

default: Specifies the default rule. If no lower-level MIP exists on an interface, a MIP is created on the current level. A MIP can be created even if no MEP is configured on the interface.

explicit: Specifies the explicit rule. If no lower-level MIP exists and a lower-level MEP exists on an interface, a MIP is created at the current level. A MIP can be created only when a lower-level MEP is created on the interface.

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

Usage guidelines

The system automatically generates MIPs on each port according to the rules configured.

Examples

# Configure the MIP generation rule as default in service instance 5.

<Sysname> system-view

[Sysname] cfd mip-rule default service-instance 5

cfd service-instance

Use cfd service-instance to create a service instance.

Use undo cfd service-instance to remove a service instance.

Syntax

cfd service-instance instance-id ma-id { icc-based ma-name | integer ma-num | string ma-name | vlan-based [ vlan-id ] } [ ma-index index-value ] md md-name vlan vlan-id

undo cfd service-instance instance-id

Default

No service instances exist.

Views

System view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies the service instance ID in the range of 1 to 32767.

ma-id: Creates an MA.

icc-based ma-name: Specifies that an MA is identified by an ICC. The ma-name argument is a string of 1 to 13 characters.

integer ma-num: Specifies that an MA is identified by an integer, where the ma-num argument is in the range of 0 to 65535.

string ma-name: Specifies that an MA is identified by a string, where the ma-name argument is string of 1 to 45 characters that can contain letters, numbers, and special characters such as grave accent (`), tilde (~), exclamation mark (!), at sign (@), number sign (#), dollar sign ($), percent (%), caret (^), ampersand (&), asterisk (*), brackets ({ }, ( ),[ ], < >), hyphen (-), underscore (_), plus (+), equal sign (=), vertical bar (|), colon (:), semicolon (;), quotation mark ('), comma (,), period (.), and slash (/).

vlan-based [ vlan-id ]: Specifies that an MA is identified by a VLAN ID, where the vlan-id argument is in the range of 1 to 4094. If you do not provide the vlan-id argument, the VLAN ID specified by vlan vlan-id is used. If the vlan vlan-id option is not provided, you must specify the vlan-id argument for the vlan-based [ vlan-id ] option.

ma-index index-value: Specifies an MA index in the range of 1 to 4294967295. If you do not specify this option, the system automatically assigns the smallest index number that is not in use. As a best practice, use the index automatically assigned by the system.

md md-name: Specifies the name of an MD. The md-name argument is a string of 1 to 43 characters that can contain letters, numbers, and special characters such as grave accent (`), tilde (~), exclamation mark (!), at sign (@), number sign (#), dollar sign ($), percent (%), caret (^), ampersand (&), asterisk (*), brackets ({ }, ( ),[ ], < >), hyphen (-), underscore (_), plus (+), equal sign (=), vertical bar (|), colon (:), semicolon (;), quotation mark (’), comma (,), period (.), and slash (/).

vlan vlan-id: Specifies the VLAN that the MA serves. The value range for the vlan-id argument is 1 to 4094.

Usage guidelines

A service instance is indicated by an integer to represent an MA in an MD. An MA index uniquely identifies a specific MA in an MD. An MA index can be used in different MDs.

An MD name must be in compliant with the specifications in IEEE802.1ag-2007.

With the vlan-based [ vlan-id ] or vlan vlan-id option, the command creates an MA carrying the VLAN attribute. If you do not specify the option, the command creates an MA carrying no VLAN attribute.

You must create the relevant MD before creating a service instance with the MD name.

Deleting a service instance also deletes the configurations related to that service instance.

Deleting a service instance not only removes the connection between the service instance and the relevant MA, but also deletes the MA.

Examples

# Create a level-3 MD named test_md and create service instance 5, in which the MA is identified by a VLAN and serves VLAN 100.

<Sysname> system-view

[Sysname] cfd md test_md level 3

[Sysname] cfd service-instance 5 ma-id vlan-based md test_md vlan 100

Related commands

cfd md

cfd slm

Use cfd slm to enable loss measurement (LM).

Syntax

cfd slm service-instance instance-id mep mep-id { target-mac mac-address | target-mep target-mep-id } [ dot1p dot1p-value ] [ number number ] [ interval interval ]

Views

Any view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

mep mep-id: Specifies the source MEP by its ID in the range of 1 to 8191.

target-mac mac-address: Specifies the target MEP by its bridge MAC address, which is in the format of H-H-H.

target-mep target-mep-id: Specifies the target MEP by its ID in the range of 1 to 8191.

dot1p dot1p-value: Specifies an 802.1p priority for LMM frames. The value range for the dot1p-value argument is 0 to 7. The default value is 7.

number number: Specifies the number of LMM frames to be sent. The value range for the number argument is 2 to 10, and the default is 5.

interval interval: Specifies the LMM frame sending interval, in seconds. The value takes 1 or 10. The default value is 1.

Usage guidelines

The LM function measures the frame loss between the source and target MEPs by using LMM frames and LMR frames.

To view the bridge MAC address of a target MEP, use the display lacp system-id command on the target MEP.

Examples

# Enable the LM function to measure the frame loss between source MEP 1101 and target MEP 2001 in service instance 1.

<Sysname> cfd slm service-instance 1 mep 1101 target-mep 2001

Reply from 0010-fc00-6512

Far-end frame loss: 10 Near-end frame loss: 20

Reply from 0010-fc00-6512

Far-end frame loss: 40 Near-end frame loss: 40

Reply from 0010-fc00-6512

Far-end frame loss: 0 Near-end frame loss: 10

Reply from 0010-fc00-6512

Far-end frame loss: 30 Near-end frame loss: 30

Average

Far-end frame loss: 20 Near-end frame loss: 25

Far-end frame loss rate: 25.00% Near-end frame loss rate: 32.00%

Sent LMMs: 5 Received: 5 Lost: 0

Table 5 Command output

Field	Description
Reply from 0010-fc00-6512	LMR frames returned from the target MEP with MAC address 0010-FC00-6512.
Far-end frame loss	Number of lost frames on the target MEP.
Near-end frame loss	Number of lost frames on the source MEP.
Far-end frame loss rate	Frame loss ratio on the target MEP.
Near-end frame loss rate	Frame loss ratio on the source MEP.
Average	Average number of lost frames.
Sent LMMs	Number of sent LMM frames.
Received	Number of received LMR frames.
Lost	Number of lost LMR frames.

cfd tst

Use cfd tst to enable test (TST).

Syntax

cfd tst service-instance instance-id mep mep-id { target-mac mac-address | target-mep target-mep-id } [ number number ] [ length-of-test length ] [ pattern-of-test { all-zero | prbs } [ with-crc ] ]

Views

Any view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

mep mep-id: Specifies the source MEP by its ID in the range of 1 to 8191.

target-mac mac-address: Specifies the target MEP by its bridge MAC address, which is in the format of H-H-H.

target-mep target-mep-id: Specifies the target MEP by its ID in the range of 1 to 8191.

number number: Specifies the number of sent TST frames. The value range for the number argument is 1 to 10, and the default is 5.

length-of-test length: Specifies the length of the Test TLV (Type/Length/Value) in the TST frame. The value range for the length argument is 4 to 1400, in bytes. The default value is 64.

pattern-of-test { all-zero | prbs } [ with-crc ]: Specifies the pattern of the Test TLV in the TST frame:

· all-zero (all-zero value without CRC-32), which is the default pattern.

· prbs (pseudo random bit sequence without CRC-32).

· all-zero with-crc (all-zero value with CRC-32).

· prbs with-crc (pseudo random bit sequence with CRC-32).

Usage guidelines

The TST function detects bit errors between the source and target MEPs by using TST frames.

To view the TST test result, use the display cfd tst command on the target MEP.

To view the bridge MAC address of a target MEP, use the display lacp system-id command on the target MEP.

Examples

# Enable the TST function to test the bit errors between source MEP 1101 and target MEP 1003 in service instance 1.

<Sysname> cfd tst service-instance 1 mep 1101 target-mep 1003

5 TSTs have been sent. Please check the result on the remote device.

Related commands

display cfd tst

reset cfd tst

display cfd ais

Use display cfd ais to display the AIS configuration and information on the specified MEP or all MEPs.

Syntax

display cfd ais [ service-instance instance-id [ mep mep-id ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767. If you do not specify this option, the command displays the AIS configuration and information for all service instances.

mep mep-id: Specifies a MEP by its ID in the range of 1 to 8191. If you do not specify this option, the command displays the AIS configuration and information for all MEPs.

Examples

# Display the AIS configuration and information for all the MEPs in all service instances.

<Sysname> display cfd ais

Service instance: 5

AIS level: 4 AIS period: 1s

MEP ID: 1

AIS condition: yes Time to enter the condition: 2013/01/22 10:43:57

AIS state machine: Previous state: NO_RECEIVE

Current state: RECEIVE

MEP ID: 2

AIS condition: yes Time to enter the condition: 2013/01/22 10:43:57

AIS state machine: Previous state: NO_RECEIVE

Current state: RECEIVE

Service instance: 20

AIS level: 3 AIS period: 60s

MEP ID: 10

AIS condition: yes Time to enter the condition: 2013/01/22 10:43:57

AIS state machine: Previous state: NO_RECEIVE

Current state: RECEIVE

Service instance: 100

AIS level: 6 AIS period: 1s

MEP ID: 20

AIS condition: no Time to enter the condition: 2013/01/22 11:40:01

AIS state machine: Previous state: IDLE

Current state: NO_RECEIVE

MEP ID: 50

AIS condition: no Time to enter the condition: -

AIS state machine: Previous state: IDLE

Current state: NO_RECEIVE

Table 6 Command output

Field	Description
Service instance	Service instance of the MEP.
AIS level	AIS frame transmission level.
AIS period	AIS frame transmission period.
AIS condition	AIS status: · yes—AIS is running. · no—AIS is not running.
Time to enter the condition	Time when the AIS status began. (- means AIS is enabled but the MEP does not receive any AIS frame.)
AIS state machine	AIS frame receiving state machine.
Previous state	Previous state: · IDLE—Not activated. · NO_RECEIVE—Activated. · RECEIVE—AIS frames are received.
Current state	Current state: · IDLE—Not activated. · NO_RECEIVE—Activated. · RECEIVE—AIS frames are received.

display cfd ais-track link-status

Use display cfd ais-track link-status to display the configuration and information of the AIS associated with the port status.

Syntax

display cfd ais-track link-status [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies a port by its type and number. If you do not specify this option, the command displays the configuration and information of the AIS associated with the status of all ports.

Examples

# Display the configuration and information of the AIS associated with the status of all ports.

<Sysname> display cfd ais-track link-status

AIS tracking link-status is enabled.

Interface GigabitEthernet1/0/1:

AIS level: 5 AIS period: 1s

Configured VLANs: 1, 10-100, 103

Send VLANs: 1, 10-100, 103

AIS condition: yes Time to enter the condition: 2013/02/26 10:43:57

Interface GigabitEthernet1/0/2:

AIS level: 5 AIS period: 1s

Configured VLANs: 1-4094

Send VLANs: 1-2000

AIS condition: yes Time to enter the condition: 2013/02/26 10:44:57

Table 7 Command output

Field	Description
AIS tracking link-status is enabled	Port status-AIS collaboration is enabled.
AIS tracking link-status is disabled	Port status-AIS collaboration is disabled.
Interface	Port that collaborates with AIS.
AIS level	EAIS frame transmission level on the port.
AIS period	EAIS frame transmission period on the port.
Configured VLANs	VLANs where the EAIS frames can be transmitted.
Send VLANs	Actual VLANs where the EAIS frames can be transmitted.
AIS condition	EAIS frame sending status: · yes—EAIS frames are being sent. · no—No EAIS frame is being sent.
Time to enter the condition	Time when the EAIS frame sending started.

display cfd dm one-way history

Use display cfd dm one-way history to display the one-way DM result.

Syntax

display cfd dm one-way history [ service-instance instance-id [ mep mep-id ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767. If you do not specify this option, the command displays the one-way DM results for all service instances.

mep mep-id: Specifies a MEP by its ID in the range of 1 to 8191. If you do not specify this option, the command displays the one-way DM results for all MEPs.

Usage guidelines

The one-way DM results for all inward-facing MEPs in a service instance are the same.

Examples

# Display the one-way DM results for all the MEPs in all service instances.

<Sysname> display cfd dm one-way history

Service instance: 1

MEP ID: 1003

Sent 1DM total number: 0

Received 1DM total number: 5

Frame delay: 10ms 9ms 11ms 5ms 5ms

Delay average: 8ms

Frame delay variation: 5ms 4ms 6ms 0ms 0ms

Variation average: 3ms

MEP ID: 1004

Sent 1DM total number: 0

Received 1DM total number: 5

Frame delay: 10ms 9ms 11ms 5ms 5ms

Delay average: 8ms

Frame delay variation: 5ms 4ms 6ms 0ms 0ms

Variation average: 3ms

Service instance: 2

No MEP exists in the service instance.

Service instance: 3

MEP ID: 1023

Sent 1DM total number: 5

Received 1DM total number: 10

Frame delay: 20ms 9ms 8ms 7ms 1ms 5ms 13ms 17ms 9ms 10ms

Delay average: 9ms

Frame delay variation: 19ms 8ms 7ms 6ms 0ms 4ms 12ms 16ms 8ms 9ms

Variation average: 8ms

Service instance: 4

MEP ID: 1023

Sent 1DM total number: 77

Received 1DM total number: 0

Table 8 Command output

Field	Description
Service instance	Service instance of the MEP.
Sent 1DM total number	Number of sent 1DM frames.
Received 1DM total number	Number of received 1DM frames.
Delay average	Average frame delay.
Variation average	Average frame delay variation.

Related commands

cfd dm one-way

reset cfd dm one-way history

display cfd linktrace-reply

Use display cfd linktrace-reply to display information about the LTRs received by a MEP.

Syntax

display cfd linktrace-reply [ service-instance instance-id [ mep mep-id ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767. If you do not specify this option, the command displays the LTR information for all service instances.

mep mep-id: Specifies the ID of a MEP, in the range of 1 to 8191. If you do not specify this option, the command displays the LTR information for all MEPs.

Usage guidelines

This command displays only information about LTRs received by execution of the cfd linktrace command.

Examples

# Display the LTR information saved on all the MEPs in every service instance.

[Sysname] display cfd linktrace-reply

Service instance: 1 MEP ID: 1003

MAC address TTL Last MAC Relay action

0000-fc00-6505 63 0000-fc00-6504 MPDB

000f-e269-a852 62 0000-fc00-6505 FDB

0000-fc00-6508 61 000f-e269-a852 Hit

Service instance: 2 MEP ID: 1023

MAC address TTL Last MAC Relay action

0000-fc00-6508 61 000f-e269-a852 Hit

Table 9 Command output

Field	Description
Service instance	Service instance to which the MEPs that send LTMs belong.
MEP ID	ID of the MEP that sends LTMs.
MAC address	Source MAC address in the LTR.
TTL	TTL of the LTM when it passes the device.
Last MAC	MAC address of the last-hop device the LTM passes.
Relay action	Indicates whether the forwarding device found the destination MAC address in its MAC address table. When the standard version (IEEE 802.1ag) of CFD is used: · Hit—The current device is the destination device. · FDB—The forwarding device found the destination MAC address. · MPDB—The destination MAC address is not found, or the destination MAC address is found in the MEP or MIP database.

Related commands

cfd linktrace

display cfd linktrace-reply auto-detection

Use display cfd linktrace-reply auto-detection to display information about the LTRs received as responses to the automatically sent LTMs.

Syntax

display cfd linktrace-reply auto-detection [ size size-value ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

size size-value: Specifies the times of recent auto-detections, in the range of 1 to 100. If you do not specify this option, the command displays all information in the buffer.

Usage guidelines

This command displays only information about LTRs received by execution of the cfd linktrace auto-detection command.

Examples

# Display the contents of the LTRs received as responses to the LTMs automatically sent.

<Sysname> display cfd linktrace-reply auto-detection

Service instance: 1 MEP ID: 1003 Time: 2013/05/22 10:43:57

Target MEP ID: 2005 TTL: 64

MAC address TTL Last MAC Relay action

0000-fc00-6505 63 0000-fc00-6504 MPDB

000f-e269-a852 62 0000-fc00-6505 FDB

0000-fc00-6508 61 000f-e269-a852 Hit

Service instance: 2 MEP ID: 1023 Time: 2013/05/22 10:44:06

Target MEP ID: 2025 TTL: 64

MAC address TTL Last MAC Relay action

0000-fc00-6508 61 000f-e269-a852 Hit

Table 10 Command output

Field	Description
Service instance	Service instance to which the MEPs that sent LTMs belong.
MEP ID	ID of the MEP that sends LTMs.
Time	Time of the LTMs automatically sent.
Target MEP ID	ID of the target MEP.
TTL	Initial TTL of the automatically sent LTMs.
MAC address	Source MAC address in the LTRs.
TTL	TTL of the LTM when it passes the device.
Last MAC	MAC address of the last-hop device the LTM passes.
Relay action	Indicates whether the forwarding device found the destination MAC address in its MAC address table. When the standard version (IEEE 802.1ag) of CFD is used: · Hit—The current device is the destination device. · FDB—The forwarding device found the destination MAC address. · MPDB—The destination MAC address is not found, or the destination MAC address is found in the MEP or MIP database.

Related commands

cfd linktrace auto-detection

display cfd md

Use display cfd md to display the MD configuration information.

Syntax

display cfd md

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display the MD configuration information.

<Sysname> display cfd md

CFD is enabled.

Maintenance domains configured: 4 in total

Level Index Maintenance domain MD format MD ID

0 1 md_0 CHARSTRING md_0

1 2 md_1 DNS dns1

2 3 md_2 MAC 0001-00

01-0001-1

3 4 md_3 NONE Without

Table 11 Command output

Field	Description
Maintenance domains configured	Number of MDs configured.
Level	Level of MD.
Index	MD index.
Maintenance domain	Name of MD.
MD format	MD name format: · CHARSTRING—Character string. · DNS—DNS name. · MAC—MAC address and an integer. · NONE—No MD name is carried.
MD ID	MD ID value: · A character string if the MD format is CHARSTRING. · A DNS name if the MD format is DNS. · A MAC address-subnumber if the MD format is MAC. · No ID if the MD format is NONE.

display cfd mep

Use display cfd mep to display the attribute and operating information for a MEP.

Syntax

display cfd mep mep-id service-instance instance-id

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

mep mep-id: Specifies a MEP by its ID in the range of 1 to 8191.

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

Examples

# Display the attribute and operating information for MEP 50 in service instance 1.

<Sysname> display cfd mep 50 service-instance 1

Interface: GigabitEthernet1/0/2

Maintenance domain: md_0

Maintenance domain index: 1

Maintenance association: ma_0

Maintenance association index: 1

Level: 0 VLAN: 1 Direction: Outbound

Current state: Active CCM send: Enabled

FNG state: FNG_DEFECT_REPORTED

CCM:

Current state: CCI_WAITING

Interval: 1s SendCCM: 12018

Loopback:

NextSeqNumber: 8877

SendLBR: 0 ReceiveInOrderLBR: 0 ReceiveOutOrderLBR: 0

Linktrace:

NextSeqNumber: 8877

SendLTR: 0 ReceiveLTM: 0

No CCM received from some remote MEPs.

One or more streams of error CCMs is received. The last received CCM:

Maintenance domain: (Without ID)

Maintenance association: matest1

MEP ID: 5 Sequence Number:0x50A

MAC Address: 0011-2233-4402

Received Time: 2013/03/06 13:01:34

One or more streams of cross-connect CCMs is received. The last received CCM:

Maintenance domain: mdtest1

Maintenance association:matest1

MEP ID: 6 Sequence Number:0x63A

MAC Address: 0011-2233-4401

Received Time: 2013/03/06 13:01:34

Some other MEPs are transmitting the RDI bit.

Table 12 Command output

Field	Description
Interface	Interface on which the MEP is configured.
Maintenance domain	MD to which the MEP belongs. (If the MD does not have a name, this field is displayed as Without ID.)
Maintenance domain index	Index of the MD to which the MEP belongs.
Maintenance association	MA to which the MEP belongs.
Maintenance association index	Index of the MA to which the MEP belongs.
Level	Level of the MD.
VLAN	VLAN to which the MA belongs.
Direction	Direction of the MEPs.
Current state	State of MEP: · Active. · Inactive.
CCM send	Whether the MEP sends CCM.
FNG state	State of FNG (Fault Notification Generator): · FNG_RESET—A fault has been cleared. · FNG_DEFECT—A fault has been detected. · FNG_REPORT_DEFECT—Report a fault. · FNG_DEFECT_REPORTED—A fault has been reported. · FNG_DEFECT_CLEARING—A fault is being cleared. If this field is not supported, a hyphen (-) is displayed.
CCM	Information related to CCM.
Current state	State of CCMs sent: · CCI_IDLE—Initial state. · CCI_WAITING—Sending state. If this field is not supported, a hyphen (-) is displayed.
Interval	Interval to send CCM. Not supported means the MEP does not support CCM sending.
SendCCM	Number of CCMs that have been sent by the MEPs. If this field is not supported, a hyphen (-) is displayed.
Loopback	Information related to Loopback.
NextSeqNumber	Sequence number of the next LBM to be sent.
SendLBR	Number of LBRs that have been sent. If the MEP is inward-facing, the number of LBRs will not be counted.
ReceiveInOrderLBR	Number of LBRs received in correct sequence.
ReceiveOutOrderLBR	Number of LBRs received out of order.
Linktrace	Information related to linktrace.
NextSeqNumber	Sequence number of the next LTM to be sent.
SendLTR	Number of LTRs sent. If the MEP is inward-facing, the number of LTRs will not be counted.
ReceiveLTM	Number of LTMs received.
No CCM received from some remote MEPs.	Failure to receive CCMs from some remote MEPs. (This information is displayed only when some CCMs are lost.)
One or more streams of error CCMs is received. The last received CCM:	Display the content of the last error CCM when one or more error CCMs are received. (This information is displayed only when error CCMs are received.)
Maintenance domain	MD of the last error CCM. If this field is not supported, a hyphen (-) is displayed.
Maintenance association	MA of the last error CCM. If this field is not supported, a hyphen (-) is displayed.
MEP	ID of the MEP that sent the last error CCM. If this field is not supported, a hyphen (-) is displayed.
Sequence Number	Sequence number of the last error CCM. If this field is not supported, a hyphen (-) is displayed.
Received Time	Time when the last error CCM is received. If this field is not supported, a hyphen (-) is displayed.
One or more streams of cross-connect CCMs is received. The last received CCM:	Cross-connect CCMs are received, and the content of the last cross-connect CCM is displayed. (This information is displayed only when cross-connect CCMs are received.)
Some other MEPs are transmitting the RDI bit.	CCMs with the RDI flag bits set are received from other MEPs. (This information is displayed only when this type of CCMs are received.)

display cfd meplist

Use display cfd meplist to display the MEP list in a service instance.

Syntax

display cfd meplist [ service-instance instance-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767. If you do not specify this option, the command displays MEP lists in all service instances.

Examples

# Display the MEP list in service instance 5.

<Sysname> display cfd meplist service-instance 5

Service instance: 5

MEP list: 1 to 20, 30, 50.

display cfd mp

Use display cfd mp to display the MP information.

Syntax

display cfd mp [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies a port by its type and number. If you do not specify this option, the command displays MP information for all ports.

Usage guidelines

The output is arranged by port name. On a port, the output shows MPs that serve VLANs, and then shows MPs that do not serve any VLANs. The MPs that serve VLANs are displayed in the ascending VLAN ID order. Within the same VLAN, the output is in the order of MIPs and MEPs (from high to low level). The MEPs that do not serve any VLANs are displayed by level (from high to low).

Examples

# Display the MP information on all ports.

<Sysname> display cfd mp

Interface GigabitEthernet1/0/1 VLAN 100

MIP Level: 2 Service instance: 102

Maintenance domain: md_2

Maintenance domain index: 3

Maintenance association: ma_2

Maintenance association index: 3

MEP ID: 101 Level: 1 Service instance: 101 Direction: Inbound

Maintenance domain: md_1

Maintenance domain index: 2

Maintenance association: ma_1

Maintenance association index: 2

MEP ID: 100 Level: 0 Service instance: 100 Direction: Outbound

Maintenance domain: md_0

Maintenance domain index: 1

Maintenance association: ma_0

Maintenance association index: 1

Table 13 Command output

Field	Description
Interface GigabitEthernet1/0/1 VLAN 100	MP configuration of VLAN 100 on GigabitEthernet 1/0/1.
MIP	A MIP in the MP.
Level	MD level to which the MP belongs.
Service instance	Service instance to which the MP belongs.
Maintenance domain	MD to which the MP belongs.
Maintenance domain index	Index of the MD to which the MP belongs.
Maintenance association	MA to which the MP belongs.
Maintenance association index	Index of the MA to which the MP belongs.
Direction	Direction of the MEP, inbound or outbound.

display cfd remote-mep

Use display cfd remote-mep to display information about a remote MEP.

Syntax

display cfd remote-mep service-instance instance-id mep mep-id

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767.

mep mep-id: Specifies a MEP by its ID in the range of 1 to 8191.

Examples

# Display remote MEP information for MEP 10 in service instance 4.

<Sysname> display cfd remote-mep service-instance 4 mep 10

MEP ID MAC address State Time MAC status

20 00e0-fc00-6565 OK 2013/03/06 02:36:38 UP

30 00e0-fc27-6502 OK 2013/03/06 02:36:38 DOWN

40 00e0-fc00-6510 FAILED 2013/03/06 02:36:39 DOWN

50 00e0-fc52-baa0 OK 2013/03/06 02:36:44 DOWN

60 0010-fc00-6502 OK 2013/03/06 02:36:42 DOWN

Table 14 Command output

Field	Description
MEP ID	ID of the remote MED.
MAC address	MAC address of the remote MEP device. If this field is not supported, a hyphen (-) is displayed.
State	Running state of the remote MEP: · OK. · FAILED.
Time	Time when the remote MEP entered the FAILED or OK state for the last time. If this field is not supported, a hyphen (-) is displayed.
MAC status	State of the interface indicated by the last CCM received from the remote MEP: · UP—The interface is ready to pass packets. · DOWN—The interface cannot pass packets. · TESTING—The interface is in some test mode. · UNKNOWN—The interface status cannot be determined. · DORMANT—The interface is not in a state to pass packets. Instead, it is in a pending state, waiting for some external event. · NOT-PRESENT—Some component of the interface is missing. · LLD—The interface is down due to state of the lower layer interfaces. If this field is not supported, a hyphen (-) is displayed.

display cfd service-instance

Use display cfd service-instance to display the configuration information of service instances.

Syntax

display cfd service-instance [ instance-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

instance-id: Specifies a service instance ID in the range of 1 to 32767. If you do not specify this argument, the command displays configuration information for all service instances.

Examples

# Display the configuration information of all service instances.

<Sysname> display cfd service-instance

Service instances configured (2 in total):

Service instance 5:

Maintenance domain: md_5

Maintenance domain index: 5

Maintenance association: ma_5

Maintenance association index: 5

Level: 5 VLAN: 5 MIP rule: NONE CCM interval: 1s Direction: Inbound

MEP ID: 730 Interface: GigabitEthernet1/0/1

Service instance 6:

Maintenance domain: (Without ID)

Maintenance domain index: 6

Maintenance association: ma_6

Maintenance association index: 6

Level: 6 VLAN: 6 MIP rule: NONE CCM interval: 1s Direction: Outbound

MEP ID: 731 Interface: GigabitEthernet1/0/2

Table 15 Command output

Field	Description
Service instances are configured.	Number of service instances configured.
Service instance	Service instance ID.
Maintenance domain	MD of the service instance. (If the MD does not have a name, this field displays Without ID.)
Maintenance domain index	Index of the MD to which the service instance belongs.
Maintenance association:	MA of the service instance.
Maintenance association index	Index of the MA to which the service instance belongs.
Level	MD level.
VLAN	VLAN to which the MA belongs.
MIP rule	MIP generation rules configured on the service instance.
CCM interval	Interval to send CCMs.
Direction	Direction of the MEPs configured on the service instance.
MEP ID	ID of MEPs configured on the service instance.
Interface	Interface of the MEP configured on the service instance.

display cfd status

Use display cfd status to display the CFD and AIS status.

Syntax

display cfd status

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display the CFD and AIS status.

<Sysname> display cfd status

CFD is enabled.

AIS is disabled.

display cfd tst

Use display cfd tst to display the TST result.

Syntax

display cfd tst [ service-instance instance-id [ mep mep-id ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767. If you do not specify this option, the command displays the TST results for all service instances.

mep mep-id: Specifies a MEP by its ID in the range of 1 to 8191. If you do not specify this option, the command displays the TST results for all MEPs.

Usage guidelines

The TST DM results for all inward-facing MEPs in a service instance are the same.

Examples

# Display the TST results for all the MEPs in all service instances.

<Sysname> display cfd tst

Service instance: 1

MEP ID: 1003

Sent TST total number: 0

Received TST total number: 5

Received from 0010-fc00-6510, Bit True, sequence number 0

Received from 0010-fc00-6510, Bit True, sequence number 1

Received from 0010-fc00-6510, Bit True, sequence number 2

Received from 0010-fc00-6510, Bit True, sequence number 3

Received from 0010-fc00-6510, Bit True, sequence number 4

MEP ID: 1004

Sent TST total number: 5

Received TST total number: 0

Service instance: 2

No MEP exists in the service instance.

Service instance: 3

MEP ID: 1023

Sent TST total number: 5

Received TST total number: 0

Table 16 Command output

Field	Description
Service instance	Service instance of the MEP.
Sent TST total number	Number of sent TST frames.
Received TST total number	Number of received TST frames.
Received from 0010-fc00-6510, Bit True, sequence number 0	TST frame with sequence number 0 was received from the MEP with MAC address 0010-FC00-6510: · Bit True—No bit error occurred. · Bit False—Bit errors occurred.

Related commands

cfd tst

reset cfd tst

reset cfd dm one-way history

Use reset cfd dm one-way history to clear the one-way DM result.

Syntax

reset cfd dm one-way history [ service-instance instance-id [ mep mep-id ] ]

Views

User view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767. If you do not specify this option, the command clears the one-way DM results for all service instances.

mep mep-id: Specifies a MEP by its ID in the range of 1 to 8191. If you do not specify this option, the command clears the one-way DM results for all MEPs.

Usage guidelines

Clearing the one-way DM result for an inward-facing MEP clears all one-way DM results for the service instance where the inward-facing MEP resides.

Examples

# Clear the one-way DM results for all MEPs in all service instances.

<Sysname> reset cfd dm one-way history

Related commands

cfd dm one-way

display cfd dm one-way history

reset cfd tst

Use reset cfd tst to clear the TST result.

Syntax

reset cfd tst [ service-instance instance-id [ mep mep-id ] ]

Views

User view

Predefined user roles

network-admin

Parameters

service-instance instance-id: Specifies a service instance by its ID in the range of 1 to 32767. If you do not specify this option, the command clears the TST results for all service instances.

mep mep-id: Specifies a MEP by its ID in the range of 1 to 8191. If you do not specify this option, the command clears the TST results for all MEPs.

Usage guidelines

Clearing the TST result for an inward-facing MEP clears all TST results for the service instance where the inward-facing MEP resides.

Examples

# Clear the TST results for all MEPs in all service instances.

<Sysname> reset cfd tst

Related commands

cfd tst

display cfd tst

10-High Availability Command Reference

CFD commands

cfd ais-track link-status global

cfd hardware-cc

cfd md

cfd mep

cfd meplist

cfd service-instance

Intelligent Terminal Products

Product Support Services

Technical Service Solutions

Resource Center

Policy

Online Help

Become a Partner

Partner Policy & Program

Global Learning

Partner Sales Resources

Service Business

News & Events

Contact Us