probe-count

Function

The probe-count command sets the number of probes for an NQA test instance.

The undo probe-count command restores the default number of probes for an NQA test instance.

By default, the number of probes for an NQA test instance is 3.

Format

probe-count number

undo probe-count

Parameters

Parameter	Description	Value
number	Specifies the number of probes in an NQA test instance.	The value is an integer that ranges from 1 to 15. The default value is 3. NOTE: The number of probes in a trace test instance cannot be more than 10.

Views

NQA view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

An NQA test consists of multiple probes. By default, if one or more probes are successful in an NQA test, the test is considered successful. If all probes fail, the test is considered a failure. The number of probes in an NQA test is based on the network quality.

If the network to be tested is a reliable network, the number of probes can be set relatively small because the probe can be successful after a small number of probe packets are sent.
If the network to be tested is an unreliable network, the number of probes can be set relatively large because the probe can be successful only after a large number of probe packets are sent.

You can also detect the network quality based on statistics obtained from multiple probes. For example,

If the probe test is successful after a small number of probes packets are sent, the network quality is good.
If the probe test is successful after a large number of probes packets are sent, the network quality is poor.

Prerequisites

The type of a test instance has been specified using the test-type command. The type of test instances that are not supported is as follows:

Configuration Impact

In UDP Jitter test instances, ICMP Jitter test instances, Path Jitter test instances, LSP Jitter test instances, the number of sent packets = probe-count x jitter-packetnum, but the product cannot exceed 3000.
If the number of probes has been configured, running the probe-count command will override the previous configuration.

Precautions

The number of probes of a running test instance cannot be changed.

Example

# Set the number of probes to 6 in NQA test instance user test.

<HUAWEI> system-view
[HUAWEI] nqa test-instance user test
[HUAWEI-nqa-user-test] test-type jitter
[HUAWEI-nqa-user-test] probe-count 6