UDP echo operation configuration example

As shown in Figure 16, configure a UDP echo operation on the NQA client to test the round-trip time to Device B. The destination port number is 8000.

1. Assign IP addresses to interfaces, as shown in Figure 16. (Details not shown.)

2. Configure static routes or a routing protocol to make sure the devices can reach each other. (Details not shown.)

3. Configure Device B:

   # Enable the NQA server.

   <DeviceB> system-view
   [DeviceB] nqa server enable
   

   # Configure a listening service to listen on the IP address 10.2.2.2 and UDP port 8000.

   [DeviceB] nqa server udp-echo 10.2.2.2 8000
   

4. Configure Device A:

   # Create a UDP echo operation.

   <DeviceA> system-view
   [DeviceA] nqa entry admin test1
   [DeviceA-nqa-admin-test1] type udp-echo
   

   # Specify 10.2.2.2 as the destination IP address.

   [DeviceA-nqa-admin-test1-udp-echo] destination ip 10.2.2.2
   

   # Set the destination port number to 8000.

   [DeviceA-nqa-admin-test1-udp-echo] destination port 8000
   

   # Enable the saving of history records.

   [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.