149
[DeviceA-nqa-admin-test1-udp-echo] history-record enable
[DeviceA-nqa-admin-test1-udp-echo] quit
# Start the UDP echo operation.
[DeviceA] nqa schedule admin test1 start-time now lifetime forever
# After the UDP echo operation runs for a period of time, stop the operation.
[DeviceA] undo nqa schedule admin test1
# Display the most recent result of the UDP echo operation.
[DeviceA] 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: 25/25/25
Square-Sum of round trip time: 625
Last succeeded probe time: 2011-11-22 10:36:17.9
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 UDP echo operation.
[DeviceA] display nqa history admin test1
NQA entry (admin admin, tag test1) history records:
Index Response Status Time
1 25 Succeeded 2011-11-22 10:36:17.9
The output shows that the round-trip time between Device A and port 8000 on Device B is 25
milliseconds.
UDP tracert operation configuration example
Network requirements
As shown in Figure 47, configure a UDP tracert operation to determine the routing path from Device
A to Device B.
Figure 47 Network diagram
Configuration procedure
1. Assign IP addresses to interfaces, as shown in Figure 47. (Details not shown.)
2. Configure static routes or a routing protocol to make sure the devices can reach each other.
(Details not shown.)
3. Execute the ip ttl-expires enable command on the intermediate devices and execute the ip
unreachables enable command on Device B.
4. Configure Device A:
# Create a UDP tracert operation.
<DeviceA> system-view
[DeviceA] nqa entry admin test1
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