UDP tracert operation configuration example

As shown in Figure 17, configure a UDP tracert operation to determine the routing path from Device A to Device B.

1. Assign IP addresses to interfaces, as shown in Figure 17. (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
   [DeviceA-nqa-admin-test1] type udp-tracert
   

   # Specify 10.2.2.2 as the destination IP address.

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

   # Set the destination port number to 33434.

   [DeviceA-nqa-admin-test1-udp-tracert] destination port 33434
   

   # Configure Device A to perform three probes to each hop.

   [DeviceA-nqa-admin-test1-udp-tracert] probe count 3
   

   # Set the probe timeout time to 500 milliseconds.

   [DeviceA-nqa-admin-test1-udp-tracert] probe timeout 500
   

   # Configure the UDP tracert operation to repeat every 5000 milliseconds.

   [DeviceA-nqa-admin-test1-udp-tracert] frequency 5000
   

   # Specify Ten-GigabitEthernet 1/0/1 as the output interface for UDP packets.

   [DeviceA-nqa-admin-test1-udp-tracert] out interface ten-gigabitethernet 1/0/1
   

   # Enable the no-fragmentation feature.

   [DeviceA-nqa-admin-test1-udp-tracert] no-fragment enable
   

   # Set the maximum number of consecutive probe failures to 6.

   [DeviceA-nqa-admin-test1-udp-tracert] max-failure 6
   

   # Set the TTL value to 1 for UDP packets in the start round of the UDP tracert operation.

   [DeviceA-nqa-admin-test1-udp-tracert] init-ttl 1
   

   # Start the UDP tracert operation.

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

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

   [DeviceA] undo nqa schedule admin test1
   

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

   [DeviceA] display nqa result admin test1
   NQA entry (admin admin, tag test1) test results:
       Send operation times: 6              Receive response times: 6
       Min/Max/Average round trip time: 1/1/1
       Square-Sum of round trip time: 1
       Last succeeded probe time: 2013-09-09 14:46:06.2
     Extended results:
       Packet loss in test: 0%
       Failures due to timeout: 0
       Failures due to internal error: 0
   Failures due to other errors: 0
     UDP-tracert results:
       TTL    Hop IP             Time
       1      3.1.1.1            2013-09-09 14:46:03.2
       2      10.2.2.2           2013-09-09 14:46:06.2
   

   # Display the history records of the UDP tracert operation.

   [DeviceA] display nqa history admin test1
   NQA entry (admin admin, tag test1) history records:
   Index      TTL  Response  Hop IP           Status          Time
   1          2    2         10.2.2.2         Succeeded       2013-09-09 14:46:06.2
   1          2    1         10.2.2.2         Succeeded       2013-09-09 14:46:05.2
   1          2    2         10.2.2.2         Succeeded       2013-09-09 14:46:04.2
   1          1    1         3.1.1.1          Succeeded       2013-09-09 14:46:03.2
   1          1    2         3.1.1.1          Succeeded       2013-09-09 14:46:02.2
   1          1    1         3.1.1.1          Succeeded       2013-09-09 14:46:01.2