H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 162)

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Configuration procedure
Before you make the configuration, make sure the devices can reach each other.
# Create a DNS test group.
system-view
[AC] nqa entry admin test
[AC-nqa-admin-test] type dns
# Specify the IP address of the DNS server 10.2.2.2 as the destination address for DNS tests, and
specify the domain name that needs to be translated as host.com.
[AC-nqa-admin-test-dns] destination ip 10.2.2.2
[AC-nqa-admin-test-dns] resolve-target host.com
# Enable the saving of history records.
[AC-nqa-admin-test-dns] history-record enable
[AC-nqa-admin-test-dns] quit
# Start DNS tests.
[AC] nqa schedule admin test start-time now lifetime forever
# Stop the DNS tests after a period of time.
[AC] undo nqa schedule admin test
# Display the results of the last DNS test.
[AC] display nqa result admin test
NQA entry (admin admin, tag test) test results:
Destination IP address: 10.2.2.2
Send operation times: 1 Receive response times: 1
Min/Max/Average round trip time: 62/62/62
Square-Sum of round trip time: 3844
Last succeeded probe time: 2008-11-10 10:49:37.3
Extended results:
Packet loss in test: 0%
Failures due to timeout: 0
Failures due to disconnect: 0
Failures due to no connection: 0
Failures due to sequence error: 0
Failures due to internal error: 0
Failures due to other errors: 0
Packet(s) arrived late: 0
# Display the history of DNS tests.
[AC] display nqa history admin test
NQA entry (admin admin, tag test) history record(s):
Index Response Status Time
1 62 Succeeded 2008-11-10 10:49:37.3