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