period source ntp

Function

The period source ntp command configures a DCP to select NTP as the clock source when calculating an IP FPM statistical period ID.

The undo period source command restores the default clock source used by a DCP when calculating an IP FPM statistical period ID.

By default, the DCP uses a high-precision clock source locally configured when calculating an IP FPM statistical period ID.

Format

period source ntp

undo period source [ ntp ]

Parameters

None

Views

IPFPM-DCP view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
ipfpm	write

Usage Guidelines

Usage Scenario

To ensure accurate IP FPM delay measurement, IP FPM-deployed devices must have the same clock source.

In P2MP (MP being two points) delay measurement scenarios, if the ingress of the service traffic uses NTP as the clock source, but the egresses use a different clock source, for example, NTP or 1588v2, you must configure the egresses to select NTP as the clock source when calculating an IP FPM statistical period ID to ensure consistent clock sources on the ingress and egresses.

To configure a DCP to select NTP as the clock source when calculating an IP FPM statistical period ID, run the period source ntp command.

Precautions

This configuration cannot be deleted separately, if the device does not configure IPFPM license.

Example

# Configure a DCP to select NTP as the clock source when calculating an IP FPM statistical period ID.

<HUAWEI> system-view
[~HUAWEI] nqa ipfpm dcp
[*HUAWEI-nqa-ipfpm-dcp] period source ntp