Configuring a DNS Test Instance on Huawei Switch

Before configuring a DNS test instance, you should know the NQA:

Network Quality Analysis (NQA) is a feature that monitors network performance in real time and helps diagnose faults occurring on the network.

As increasing services and applications are deployed on the Internet, traditional network performance analysis tools (such as Ping and Tracert) cannot meet customer requirements for diversified services and real-time monitoring.

NQA sends test packets to analyze the network performance and quality of service. NQA can provide various network performance parameters, including latency variation, total latency of the HTTP application, TCP connection latency, FTP connection latency, and file transfer rate. Using NQA test results, you can:

Obtain the network performance in real time and take measures to improve the network performance.

Diagnose the network and identify causes of network faults.

Before configuring a DNS test instance, configure a DNS server and ensure reachable routes between the DNS client and the DNS server.

A DNS test can detect the speed at which a DNS name is resolved into an IP address.

The NQA client also functions as the DHCP client. Perform the following steps on the NQA client

Configuration overview:

Step 1 Run:

system-view

The system view is displayed.

Step 2 Run:

dns resolve

Dynamic DNS resolution is enabled.

By default, dynamic DNS resolution is disabled.

Step 3 Run:

nqa test-instance admin-name test-name

An NQA test instance is created, and the NQA view is displayed.

Step 4 Run:

test-type dns

The test type is set to DNS.

Step 5 Run:

destination-address url urlstring

The name of the destination host is configured.

Step 6 (Optional) Run the following commands as required to configure parameters for the DNS test.

 Run:

description string

A description is configured for the test instance.

 Run:

frequency interval

The test period is set for the NQA test instance.

 Run:

timeout time

The timeout period of a probe is set for the NQA test instance.

By default, the timeout period of a DNS probe is 3 seconds.

 Run:

records history number

The maximum number of historical records is set for the NQA test instance.

 Run:

records result number

The maximum number of result records is set for the NQA test instance.

 Run:

agetime hh:mm:ss

The aging time is set for the NQA test instance.

 Run:

dns-server ipv4 ip-address

The DNS server address is configured.

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This configuration also works for S2700 Huawei, Huawei Quidway S5700, S6700.