delay-measure one-way variation-threshold

Function

The delay-measure one-way variation-threshold command sets alarm thresholds for one-way frame jitter in proactive one-way frame delay measurement.

The undo delay-measure one-way variation-threshold command deletes the alarm thresholds set for one-way frame jitter in proactive one-way frame delay measurement.

By default, no alarm threshold is set for one-way frame jitter in proactive one-way frame delay measurement.

Format

delay-measure one-way variation-threshold mep mep-id upper-limit upper-limit lower-limit lower-limit [ 8021p 8021p-value ]

undo delay-measure one-way variation-threshold mep mep-id [ upper-limit upper-limit lower-limit lower-limit ] [ 8021p 8021p-value ]

Parameters

Parameter	Description	Value
upper-limit upper-limit	Sets an upper threshold for one-way frame jitter.	The value is an integer ranging from 0 to 4294967295, in microseconds.
lower-limit lower-limit	Sets a lower threshold for one-way frame jitter.	The value is an integer ranging from 0 to 4294967295, in microseconds. The lower threshold must be less than or equal to the upper threshold.
8021p 8021p-value	Specifies the priority of frames for one-way frame jitter. This parameter applies only to VLL scenarios.	The value is an integer ranging from 0 to 7.
mep mep-id	Specifies the ID of a MEP.	The value is an integer ranging from 1 to 8191.

Views

MA view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
y1731	write

Usage Guidelines

Usage Scenario

To set alarm thresholds for one-way frame jitter in proactive one-way frame delay measurement, run the delay-measure one-way variation-threshold command. Proactive one-way frame delay measurement is used to measure the unidirectional transmission delay for links between MEPs and monitor the quality of the links. If the jitter on the links between MEPs exceeds the configured upper threshold, an alarm is generated and sent to the NMS. A network administrator uses the alarm information to rectify the fault that causes the jitter and to ensure service quality.

Prerequisites

An MD, an MA, and a MEP have been created using the cfm md, ma, and mep mep-id commands, respectively.

Example

# Set a lower threshold to 200 microseconds and an upper threshold to 400 microseconds for one-way frame jitter in one-way frame delay measurement.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] quit
[*HUAWEI] mpls l2vpn
[*HUAWEI-l2vpn] quit
[*HUAWEI] interface GigabitEthernet 0/1/1
[*HUAWEI-GigabitEthernet0/1/1] undo shutdown
[*HUAWEI-GigabitEthernet0/1/1] mpls l2vc 2.2.2.2 100
[*HUAWEI-GigabitEthernet0/1/1] quit
[*HUAWEI] cfm enable
[*HUAWEI] cfm md md1
[*HUAWEI-md-md1] ma ma1
[*HUAWEI-md-md1-ma-ma1] map mpls l2vc 2.2.2.2 100 raw
[*HUAWEI-md-md1-ma-ma1] mep mep-id 1 interface GigabitEthernet0/1/1 inward
[*HUAWEI-md-md1-ma-ma1] delay-measure one-way variation-threshold mep 1 upper-limit 400 lower-limit 200