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|
*************************************
Yardstick Test Case Description TC011
*************************************
.. _iperf3: https://iperf.fr/
+-----------------------------------------------------------------------------+
|Packet delay variation between VMs |
| |
+--------------+--------------------------------------------------------------+
|test case id | OPNFV_YARDSTICK_TC011_Packet delay variation between VMs |
| | |
+--------------+--------------------------------------------------------------+
|metric | jitter: packet delay variation (ms) |
| | |
+--------------+--------------------------------------------------------------+
|test purpose | Measure the packet delay variation sending the packets from |
| | one VM to the other. |
| | |
+--------------+--------------------------------------------------------------+
|configuration | File: opnfv_yardstick_tc011.yaml |
| | |
| | * options: |
| | protocol: udp # The protocol used by iperf3 tools |
| | bandwidth: 20m # It will send the given number of packets |
| | without pausing |
| | * runner: |
| | duration: 30 # Total test duration 30 seconds. |
| | |
| | * SLA (optional): |
| | jitter: 10 (ms) # The maximum amount of jitter that is |
| | accepted. |
| | |
+--------------+--------------------------------------------------------------+
|test tool | iperf3 |
| | |
| | iPerf3 is a tool for active measurements of the maximum |
| | achievable bandwidth on IP networks. It supports tuning of |
| | various parameters related to timing, buffers and protocols. |
| | The UDP protocols can be used to measure jitter delay. |
| | |
| | (iperf3 is not always part of a Linux distribution, hence it |
| | needs to be installed. It is part of the Yardstick Docker |
| | image. |
| | As an example see the /yardstick/tools/ directory for how |
| | to generate a Linux image with pktgen included.) |
| | |
+--------------+--------------------------------------------------------------+
|references | iperf3_ |
| | |
| | ETSI-NFV-TST001 |
| | |
+--------------+--------------------------------------------------------------+
|applicability | Test can be configured with different |
| | |
| | * bandwidth: Test case can be configured with different |
| | bandwidth |
| | |
| | * duration: The test duration can be configured |
| | |
| | * jitter: SLA is optional. The SLA in this test case |
| | serves as an example. |
| | |
+--------------+--------------------------------------------------------------+
|pre-test | The test case image needs to be installed into Glance |
|conditions | with iperf3 included in the image. |
| | |
| | No POD specific requirements have been identified. |
| | |
+--------------+--------------------------------------------------------------+
|test sequence | description and expected result |
| | |
+--------------+--------------------------------------------------------------+
|step 1 | The hosts are installed, as server and client. iperf3 is |
| | invoked and logs are produced and stored. |
| | |
| | Result: Logs are stored. |
| | |
+--------------+--------------------------------------------------------------+
|test verdict | Test should not PASS if any jitter is above the optional SLA |
| | value, or if there is a test case execution problem. |
| | |
+--------------+--------------------------------------------------------------+
|
