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erps track cfm

Function

The erps track cfm command associates ERPS with Ethernet CFM to fast detect link failures.

The undo erps track cfm command disassociates ERPS from Ethernet CFM.

By default, ERPS is not associated with Ethernet CFM.

Format

erps ring ring-id track cfm md md-name ma ma-name mep mep-id remote-mep rmep-id

undo erps ring ring-id [ track cfm ]

Parameters

Parameter Description Value
ring ring-id

Specifies the ID of an ERPS ring.

The value is an integer that ranges from 1 to 255.

md md-name

Specifies the name of a maintenance domain (MD).

The value is a string of 1 to 43 case-sensitive characters. Spaces and question marks (?) are not supported. MD names on a device must be unique.
NOTE:

When double quotation marks are used around the string, spaces are allowed in the string.

ma ma-name

Specifies the name of a maintenance association (MA).

The value is a string of 1 to 43 case-sensitive characters. Spaces and question marks (?) are not supported.
NOTE:

When double quotation marks are used around the string, spaces are allowed in the string.

mep mep-id

Specifies the ID of a maintenance association end point (MEP).

The value is an integer that ranges from 1 to 8191.

remote-mep rmep-id

Specifies the ID of a remote maintenance association end point (RMEP).

The value is an integer that ranges from 1 to 8191.

Views

Ethernet interface view, GE interface view, XGE interface view, 25GE interface view, 40GE interface view, 100GE interface view, MultiGE interface view, Eth-Trunk interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

To fast detect faults, implement fast convergence, and shorten traffic interruptions, run the erps track cfm command to associate ERPS with Ethernet CFM on a port added to an ERPS ring.

Prerequisites

  • STP, RRPP, or SEP is not enabled on the port.
    • If the port has STP enabled, run the stp disable command in the interface view to disable STP.
    • If the port has RRPP enabled, run the undo ring ring-id command in the RRPP domain view to disable RRPP.
    • If the port has SEP enabled, run the undo sep segment segment-id command in the interface view to disable SEP.
  • The port is not a Layer 3 port. If the port is a Layer 3 port, run the portswitch command to switch the port to the Layer 2 mode.

  • The ERPS ring specified by ring ring-id must be the one to which the port belongs.

  • Ethernet CFM has not been applied to other ports in the ERPS ring.

Precautions

This command is supported in both ERPSv1 and ERPSv2.

The association between ERPS and CFM takes effect only when the interface has ERPS associated with CFM and has an interface-based MEP created using the mep mep-id command.

Example

# Associate ERPS with Ethernet CFM on GigabitEthernet0/0/1.

<HUAWEI> system-view
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] erps ring 5
[HUAWEI-GigabitEthernet0/0/1] erps ring 5 track cfm md md1 ma ma1 mep 1 remote-mep 2
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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