UDP jitter operation configuration example

As shown in Figure 13, configure a UDP jitter operation to test the jitter, delay, and round-trip time between Device A and Device B.

1. Assign IP addresses to interfaces, as shown in Figure 13. (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 9000.

   [DeviceB] nqa server udp-echo 10.2.2.2 9000
   

4. Configure Device A:

   # Create a UDP jitter operation.

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

   # Specify 10.2.2.2 as the destination address of the operation.

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

   # Set the destination port number to 9000.

   [DeviceA-nqa-admin-test1-udp-jitter] destination port 9000
   

   # Configure the operation to repeat every 1000 milliseconds.

   [DeviceA-nqa-admin-test1-udp-jitter] frequency 1000
   [DeviceA-nqa-admin-test1-udp-jitter] quit
   

   # Start the UDP jitter operation.

   [DeviceA] nqa schedule admin test1 start-time now lifetime forever
   

   # After the UDP jitter operation runs for a period of time, stop the operation.

   [DeviceA] undo nqa schedule admin test1
   

   # Display the most recent result of the UDP jitter operation.

   [DeviceA] display nqa result admin test1
   NQA entry (admin admin, tag test1) test results:
       Send operation times: 10             Receive response times: 10
       Min/Max/Average round trip time: 15/32/17
       Square-Sum of round trip time: 3235
       Last packet received time: 2011-05-29 13:56:17.6
     Extended results:
       Packet loss ratio: 0%
       Failures due to timeout: 0
       Failures due to internal error: 0
       Failures due to other errors: 0
       Packets out of sequence: 0
       Packets arrived late: 0
     UDP-jitter results:
      RTT number: 10
       Min positive SD: 4                     Min positive DS: 1
       Max positive SD: 21                    Max positive DS: 28
       Positive SD number: 5                  Positive DS number: 4
       Positive SD sum: 52                    Positive DS sum: 38
       Positive SD average: 10                Positive DS average: 10
       Positive SD square-sum: 754            Positive DS square-sum: 460
       Min negative SD: 1                     Min negative DS: 6
       Max negative SD: 13                    Max negative DS: 22
       Negative SD number: 4                  Negative DS number: 5
       Negative SD sum: 38                    Negative DS sum: 52
       Negative SD average: 10                Negative DS average: 10
       Negative SD square-sum: 460            Negative DS square-sum: 754
     One way results:
       Max SD delay: 15                       Max DS delay: 16
       Min SD delay: 7                        Min DS delay: 7
       Number of SD delay: 10                 Number of DS delay: 10
       Sum of SD delay: 78                    Sum of DS delay: 85
       Square-Sum of SD delay: 666            Square-Sum of DS delay: 787
       SD lost packets: 0                   DS lost packets: 0
       Lost packets for unknown reason: 0
   

   # Display the statistics of the UDP jitter operation.

   [DeviceA] display nqa statistics admin test1
   NQA entry (admin admin, tag test1) test statistics:
     NO. : 1
       Start time: 2011-05-29 13:56:14.0
       Life time: 47 seconds
       Send operation times: 410            Receive response times: 410
       Min/Max/Average round trip time: 1/93/19
       Square-Sum of round trip time: 206176
     Extended results:
       Packet loss ratio: 0%
       Failures due to timeout: 0
       Failures due to internal error: 0
       Failures due to other errors: 0
       Packets out of sequence: 0
       Packets arrived late: 0
     UDP-jitter results:
      RTT number: 410
       Min positive SD: 3                     Min positive DS: 1
       Max positive SD: 30                    Max positive DS: 79
       Positive SD number: 186                Positive DS number: 158
       Positive SD sum: 2602                  Positive DS sum: 1928
       Positive SD average: 13                Positive DS average: 12
       Positive SD square-sum: 45304          Positive DS square-sum: 31682
       Min negative SD: 1                     Min negative DS: 1
       Max negative SD: 30                    Max negative DS: 78
       Negative SD number: 181                Negative DS number: 209
       Negative SD sum: 181                   Negative DS sum: 209
       Negative SD average: 13                Negative DS average: 14
       Negative SD square-sum: 46994          Negative DS square-sum: 3030
     One way results:
       Max SD delay: 46                       Max DS delay: 46
       Min SD delay: 7                        Min DS delay: 7
       Number of SD delay: 410                Number of DS delay: 410
       Sum of SD delay: 3705                  Sum of DS delay: 3891
       Square-Sum of SD delay: 45987          Square-Sum of DS delay: 49393
       SD lost packets: 0                   DS lost packets: 0
       Lost packets for unknown reason: 0