delay-measure enable

Function

The delay-measure enable one-way tlp command enables on-demand one-way delay measurement for an IP Flow Performance Measurement (IP FPM) instance.

The delay-measure enable one-way tlp mid-point command enables delay measurement on a mid-point.

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

The undo delay-measure enable command disables proactive delay measurement of an IP FPM instance.

The undo delay-measure enable one-way tlp mid-point command disables delay measurement on a mid-point.

By default, proactive one-way delay measurement of an IP FPM instance and on-demand one-way delay measurement and of an IP FPM instance are disabled, delay measurement is disabled on a mid-point from an IP Flow Performance Measurement (IP FPM) instance..

Format

delay-measure enable one-way tlp tlp-id [ continual | time-range time-range ]

delay-measure enable one-way tlp mid-point [ continual | time-range time-range ]

delay-measure enable one-way tlp mid-point [ time-range time-range ]

undo delay-measure enable

undo delay-measure enable one-way tlp mid-point [ continual ]

Parameters

Parameter	Description	Value
continual	Indicates proactive delay measurement.	-
time-range time-range	Specifies the statistical period for on-demand one-way delay measurement.	The value is an integer that can be 5, 10, 15, or 30, in minutes. The default value is 10 m.
tlp tlp-id	Specifies a TLP ID for proactive one-way delay measurement.	The value is an integer ranging from 1 to 16777215.
mid-point	Enables delay measurement on a mid-point.	-

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 one-way delay performance in a specified period, run the delay-measure enable one-way command.
To diagnose network faults and locate faulty nodes when network performance deteriorates, run the delay-measure enable mid-point command.
To detect faults when network performance deteriorates and monitor proactive one-way delay performance, run the delay-measure enable one-way 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

If a master/slave switchover is performed, or the device is restarted, delay measurement on the mid-point or on-demand one-way delay measurement will become invalid. You must reconfigure the function.

On-demand one-way delay measurement cannot function together with on-demand or proactive two-way delay measurement.

Proactive one-way delay measurement cannot function together with on-demand or proactive two-way delay measurement.

The on-demand statistics command is an action command and does not generate a configuration file.

Example

# Enable proactive one-way delay measurement for an IP FPM instance.

<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] delay-measure enable one-way tlp 100 continual

# Enable delay measurement on a mid-point in an IP FPM instance.

<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] delay-measure enable one-way tlp mid-point time-range 30

# Enable on-demand one-way delay measurement for an IP FPM instance.

<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] delay-measure enable one-way tlp 100