Path jitter operation configuration example

Network requirements

As shown in Figure 20, configure a path jitter operation to test the round trip time and jitters from Device A to Device B and Device C.

Figure 20: Network diagram

Configuration procedure

# Assign IP addresses to interfaces, as shown in Figure 20. (Details not shown.)

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

# Execute the ip ttl-expires enable command on Device B and execute the ip unreachables enable command on Device C.

# Create a path jitter operation.

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

# Specify 10.2.2.2 as the destination IP address of ICMP echo requests.

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

# Configure the path jitter operation to repeat every 10000 milliseconds.

[DeviceA-nqa-admin-test1-path-jitter] frequency 10000
[DeviceA-nqa-admin-test1-path-jitter] quit

# Start the path jitter operation.

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

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

[DeviceA] undo nqa schedule admin test1

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

[DeviceA] display nqa result admin test1
NQA entry (admin admin, tag test1) test results:
  Hop IP 10.1.1.2
    Basic Results
      Send operation times: 10             Receive response times: 10
      Min/Max/Average round trip time: 9/21/14
      Square-Sum of round trip time: 2419
    Extended Results
      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
    Path-Jitter Results
      Jitter number: 9
        Min/Max/Average jitter: 1/10/4
      Positive jitter number: 6
        Min/Max/Average positive jitter: 1/9/4
        Sum/Square-Sum positive jitter: 25/173
      Negative jitter number: 3
        Min/Max/Average negative jitter: 2/10/6
        Sum/Square-Sum positive jitter: 19/153

  Hop IP 10.2.2.2
    Basic Results
      Send operation times: 10             Receive response times: 10
      Min/Max/Average round trip time: 15/40/28
      Square-Sum of round trip time: 4493
    Extended Results
      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
    Path-Jitter Results
      Jitter number: 9
        Min/Max/Average jitter: 1/10/4
      Positive jitter number: 6
        Min/Max/Average positive jitter: 1/9/4
        Sum/Square-Sum positive jitter: 25/173
      Negative jitter number: 3
        Min/Max/Average negative jitter: 2/10/6
        Sum/Square-Sum positive jitter: 19/153