H3C Technologies H3C S7500E Series Switches - Manual (Page 50)

2-30
Extended results:
Packet lost 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 DHCP tests.
[SwitchA] display nqa history admin test
NQA entry(admin admin, tag test) history record(s):
Index Response Status Time
1 624 Succeeded 2007-11-22 09:56:03.2
DNS Test Configuration Example
Network requirements
As shown in Figure 2-5 , use the DNS function to test whether Device A can resolve the domain name
host.com into an IP address through the DNS server and test the time required for resolution.
Figure 2-5 Network diagram for DNS tests
Configuration procedure
# Create a DNS test group and configure related test parameters.
system-view
[DeviceA] nqa entry admin test
[DeviceA-nqa-admin-test] type dns
[DeviceA-nqa-admin-test-dns] destination ip 10.2.2.2
[DeviceA-nqa-admin-test-dns] resolve-target host.com
# Enable the saving of history records.
[DeviceA-nqa-admin-test-dns] history-record enable
[DeviceA-nqa-admin-test-dns] quit
# Enable DNS test.
[DeviceA] nqa schedule admin test start-time now lifetime forever
# Disable DNS test after the test begins for a period of time.
[DeviceA] undo nqa schedule admin test
# Display results of the last DNS test.
[DeviceA] 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