Configuring a DNS Test

Procedure

1. Access the system view.

   system-view

2. Enable the dynamic domain name resolution function.

   dns resolve

3. Configure the DNS server.

   dns server ip-address

4. Create an NQA test instance and access the test instance view.

   nqa test-instance admin-name test-name

5. Set the test type to DNS.

   test-type dns

6. Configure the IPv4 address of the tested DNS server.

   dns-server ipv4 ip-address

   

   The IP address of the DNS server must be the IP address of the DNS server configured on the 3.

7. Configure the domain name to be resolved by the DNS server.

   destination-address url dest-url

8. Optional: Configure other parameters for the DNS test.

   Item	Command	Description
   Configuring description of a test instance	description description-information	-
   Setting the test interval	frequency interval	By default, no test interval is set, and the test runs only once.
   Setting the timeout for a single probe	timeout time	By default, the expiration time for a single probe in the DNS test is 3s.
   Setting the maximum number of historical records	records history number	By default, there are a maximum of 50 historical records.
   Configuring the maximum number of test result records	records result number	By default, a maximum of five test results are recorded.
   Setting the aging time of a test instance	agetime hh:mm:ss	The default value is 0. That is, test instances are never aged.

9. Start the NQA test.

   start

   Select one of the following start modes as required.

   • Start the NQA test immediately.

     start now [ end { at [ yyyy/mm/dd ] hh:mm:ss | delay { seconds second | hh:mm:ss } | lifetime { seconds second | hh:mm:ss } ]

   • Start the NQA test at a specified time point.

     start at [ yyyy/mm/dd ] hh:mm:ss [ end { at [ yyyy/mm/dd ] hh:mm:ss | delay { seconds second | hh:mm:ss } | lifetime { seconds second | hh:mm:ss } ]

   • Start the NQA test after the delay of a specified period.

     start delay { seconds second | hh:mm:ss } [ end { at [ yyyy/mm/dd ] hh:mm:ss | delay { seconds second | hh:mm:ss } | lifetime { seconds second | hh:mm:ss } ]