H3C Technologies H3C S6300 Series Switches - Manual (Page 155)

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Figure 39 Network diagram
Configuration procedure
# Create a DHCP operation to be performed to the destination IP address 10.1.1.2.
<SwitchA> system-view
[SwitchA] nqa entry admin test1
[SwitchA-nqa-admin-test1] type dhcp
[SwitchA-nqa-admin-test1-dhcp] destination ip 10.1.1.2
# Enable the saving of history records.
[SwitchA-nqa-admin-test1-dhcp] history-record enable
[SwitchA-nqa-admin-test1-dhcp] quit
# Start the DHCP operation.
[SwitchA] nqa schedule admin test1 start-time now lifetime forever
# After the DHCP operation runs for a period of time, stop the operation.
[SwitchA] undo nqa schedule admin test1
# Display the most recent results of the DHCP operation.
[SwitchA] display nqa result admin test1
NQA entry (admin admin, tag test1) test results:
Send operation times: 1 Receive response times: 1
Min/Max/Average round trip time: 512/512/512
Square-Sum of round trip time: 262144
Last succeeded probe time: 2011-11-22 09:56:03.2
Extended results:
Packet loss ratio: 0%
Failures due to timeout: 0
Failures due to internal error: 0
Failures due to other errors: 0
# Display the history records of the DHCP operation.
[SwitchA] display nqa history admin test1
NQA entry (admin admin, tag test1) history records:
Index Response Status Time
1 512 Succeeded 2011-11-22 09:56:03.2
The output shows that Switch A uses 512 milliseconds to obtain an IP address from the DHCP server.
DNS operation configuration example
Network requirements
As shown in Figure 40 , configure a DNS operation to test whether Device A can translate the domain
name host.com into an IP address through the DNS server, and test the time required for resolution.