loss-measure enable

Function

The loss-measure enable command enables on-demand packet loss measurement for an IP Flow Performance Measurement (IP FPM) instance.

The undo loss-measure enable command disables on-demand packet loss measurement for an IP Flow Performance Measurement (IP FPM) instance.

The loss-measure enable continual command enables proactive packet loss measurement for an IP Flow Performance Measurement (IP FPM) instance.

The undo loss-measure enable command disables proactive packet loss measurement from an IP FPM instance.

By default, proactive packet loss measurement and on-demand packet loss measurement are disabled from an IP FPM instance.

Format

loss-measure enable [ time-range time-range | continual ]

undo loss-measure enable

Parameters

Parameter	Description	Value
time-range time-range	Specifies the statistical period for on-demand packet loss measurement.	The value is an integer that can be 5, 10, 15, or 30, in minutes. The default value is 10 minutes.

Parameter

Description

Value

time-range time-range

Specifies the statistical period for on-demand packet loss measurement.

The value is an integer that can be 5, 10, 15, or 30, in minutes.

The default value is 10 minutes.

Views

IPFPM-DCP instance view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
ipfpm	write

Usage Guidelines

Usage Scenario

The IP FPM performance statistics serve as a reliable reference for assessing IP network performance and therefore are useful for fault diagnosis and service statistics.

To monitor on-demand packet loss performance in a specified period, run the loss-measure enable command.
To detect faults when network performance deteriorates and monitor proactive packet loss performance, run the loss-measure enable continual command.

Prerequisites

An IP FPM model has been established, including configuring a DCP and MCP, binding a TLP to a physical interface, and creating a target flow and IP FPM instance.

Precautions

After a master/slave main control board switchover or a device restart, on-demand packet loss measurement does not take effect any longer.

On-demand packet loss measurement cannot function together with proactive packet loss measurement.

Example

# Enable proactive packet loss measurement for an IP FPM instance.

<HUAWEI> system-view
[~HUAWEI] nqa ipfpm dcp
[*HUAWEI-nqa-ipfpm-dcp] instance 1
[*HUAWEI-nqa-ipfpm-dcp-instance-1] loss-measure enable continual

# Enable on-demand packet loss measurement for an IP FPM instance the statistical period for on-demand packet loss measurement is 30 m.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet0/1/1
[*HUAWEI-GigabitEthernet0/1/1] ipfpm tlp 100
[*HUAWEI-GigabitEthernet0/1/1] quit
[*HUAWEI] nqa ipfpm mcp
[*HUAWEI-nqa-ipfpm-mcp] mcp id 1.1.1.1
[*HUAWEI-nqa-ipfpm-mcp] protocol udp port 2048
[*HUAWEI-nqa-ipfpm-mcp] instance 1
[*HUAWEI-nqa-ipfpm-mcp-instance-1] dcp 1.1.1.1
[*HUAWEI-nqa-ipfpm-mcp-instance-1] ach 1
[*HUAWEI-nqa-ipfpm-mcp-instance-1-ach-1] flow forward
[*HUAWEI-nqa-ipfpm-mcp-instance-1-ach-1] in-group dcp 1.1.1.1 tlp 100
[*HUAWEI-nqa-ipfpm-mcp-instance-1-ach-1] quit
[*HUAWEI-nqa-ipfpm-mcp-instance-1] quit
[*HUAWEI-nqa-ipfpm-mcp] quit
[*HUAWEI] nqa ipfpm dcp
[*HUAWEI-nqa-ipfpm-dcp] dcp id 1.1.1.1
[*HUAWEI-nqa-ipfpm-dcp] mcp 1.1.1.1 port 2048
[*HUAWEI-nqa-ipfpm-dcp] instance 1
[*HUAWEI-nqa-ipfpm-dcp-instance-1] tlp 100 in-point ingress
[*HUAWEI-nqa-ipfpm-dcp-instance-1] flow forward source 1.1.1.1
[*HUAWEI-nqa-ipfpm-dcp-instance-1] commit
[*HUAWEI-nqa-ipfpm-dcp-instance-1] loss-measure enable time-range 30