loss-measure dual-ended continual

Function

The loss-measure dual-ended continual command enables proactive dual-ended frame loss measurement.

The undo loss-measure dual-ended continual command disables proactive dual-ended frame loss measurement.

By default, dual-ended frame loss measurement is disabled.

Only the S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-HI, S6730-H, S6730S-H, S6730-S, and S6730S-S support this command.

Format

loss-measure dual-ended continual mep mep-id remote-mep mep-id

undo loss-measure dual-ended continual [ mep mep-id [ remote-mep mep-id ] ]

Parameters

Parameter	Description	Value
mep-id mep-id	Specifies the ID of a MEP.	The value is an integer in the range from 1 to 8191.
remote-mep mep-id	Specifies the ID of an RMEP.	The value is an integer in the range from 1 to 8191.

Views

MA view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

The dual-ended frame loss measurement function is service-oriented. You can estimate quality of services based on the calculated packet loss rate.

Dual-ended frame loss measurement is deployed on end-to-end MEPs. In Y.1731, frame loss statistics are collected based on the transmit and receive counters carried in CCMs.

The interval for collecting dual-ended frame loss statistics does not need to be configured separately, because it equals the interval at which CCMs are sent.

Prerequisites

The command takes effect only after the following configurations are completed:

Run the cfm version standard command in the system view to specify IEEE Standard 802.1ag-2007 for CFM.
Run the cfm enable (system view) command to enable CFM globally.
Run the cfm md command in the system view to create an MD.
Run the ma command in the MD view to create an MA.
Run the mep mep-id command in the MA view to create an inward-facing MEP.

If remote-mep mep-id is specified in the delay-measure one-way continual command, the following configurations must be completed:

Run the remote-mep command in the MA view to create an RMEP.
Run the mep ccm-send enable command in the MA view to enable the local MEP in the MA to send CCMs.
Run the remote-mep ccm-receive enable command in the MA view to enable the MEP to receive CCMs from the RMEP in the same MA.

Example

# Enable dual-ended frame loss measurement in the VLAN scenario.

<HUAWEI> system-view
[HUAWEI] cfm enable
[HUAWEI] cfm md md1
[HUAWEI-md-md1] ma ma1
[HUAWEI-md-md1-ma-ma1] map vlan 10
[HUAWEI-md-md1-ma-ma1] mep mep-id 1 interface GigabitEthernet1/0/1 outward
[HUAWEI-md-md1-ma-ma1] mep ccm-send mep-id 1 enable
[HUAWEI-md-md1-ma-ma1] remote-mep ccm-receive mep-id 2 enable
[HUAWEI-md-md1-ma-ma1] loss-measure dual-ended continual mep 1 remote-mep 2