41DNS operation configuration exampleNetwork requirementsAs shown in Figure 9, configure a DNS operation to test whether Device A can perform addressresolution through the DNS server and test the resolution time.Figure 9 Network diagramConfiguration procedure# Assign each interface an IP address. (Details not shown.)# Configure static routes or a routing protocol to make sure the devices can reach each other. (Details notshown.)# Create a DNS operation. system-view[DeviceA] nqa entry admin test1[DeviceA-nqa-admin-test1] type dns# Specify the IP address of the DNS server 10.2.2.2 as the destination address.[DeviceA-nqa-admin-test1-dns] destination ip 10.2.2.2# Specify the domain name to be translated as host.com.[DeviceA-nqa-admin-test1-dns] resolve-target host.com# Enable the saving of history records.[DeviceA-nqa-admin-test1-dns] history-record enable[DeviceA-nqa-admin-test1-dns] quit# Start the DNS operation.[DeviceA] nqa schedule admin test1 start-time now lifetime forever# After the DNS operation runs for a period of time, stop the operation.[DeviceA] undo nqa schedule admin test1# Display the most recent result of the DNS operation.[DeviceA] display nqa result admin test1NQA entry (admin admin, tag test1) test results:Send operation times: 1 Receive response times: 1Min/Max/Average round trip time: 62/62/62Square-Sum of round trip time: 3844Last succeeded probe time: 2011-11-10 10:49:37.3Extended results:Packet loss ratio: 0%Failures due to timeout: 0Failures due to internal error: 0Failures due to other errors: 0# Display the history records of the DNS operation.
