display nqa history (NQA view)

Function

The display nqa history command displays history records of an NQA test instance.

Format

display nqa history [ this ]

Parameters

Parameter	Description	Value
this	Display history records of the current instance.	-

Parameter

Description

Value

this

Display history records of the current instance.

Views

NQA view

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
sla	read

Usage Guidelines

Usage Scenario

NQA test instances can detect network operation conditions, output statistics, and effectively cut costs. NQA measures the performance of different protocols on the network, which allows carriers to collect the operation indicator of networks in real time.

To query the history statistics on NQA tests, run the display nqa history [ this ] command. You can view information about each test packet, including the status and round trip delay. This allows you to learn about network running status.

Prerequisites

NQA test instances are configured.

Configuration Impact

History records of a failed jitter test instance will not be recorded.

Precautions

This command is run in an NQA test instance view, and the command only displays the history statistics on the test instance.

The display nqa history command displays history statistics on all NQA test instances.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display history statistics on the NQA test instance admin icmp.

<HUAWEI> system-view
[~HUAWEI] nqa test-instance admin icmp
[*HUAWEI-nqa-admin-icmp] test-type icmp
[*HUAWEI-nqa-admin-icmp] display nqa history this
NQA entry(admin,icmp) history:
--------------------------------------------------------------------------------
Index  T/H/P     Response Status       Address         Time
--------------------------------------------------------------------------------
 1     1/1/1         32ms success      1.1.1.1         2012-11-27 10:12:38.511
 2     1/1/2         47ms success      1.1.1.1         2012-11-27 10:12:42.520
 3     1/1/3         46ms success      1.1.1.1         2012-11-27 10:12:46.531
--------------------------------------------------------------------------------

**Table 1** Description of the **display nqa history (NQA view)** command output
Item	Description
NQA entry(admin,icmp) history	NQA test entry information: admin: administrator of an NQA test instance. icmp: name of an NQA test instance.
Index	Index of a history record.
T/H/P	Number of times a test packet will be sent/Number of hops a test packet will pass through/Number of sent test packets.
Status	Status of an NQA test packet: timeout: The response packet times out, and the test fails. success: The test is successful. drop: Sending packets fails due to incorrect configuration of the test instance. In this case, the test fails.
Address	Destination IP address.
Time	Date and time when a test packet was received.
Response	Value of the Round-Trip Time (RTT).