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.. This work is licensed under a Creative Commons Attribution 4.0 International
.. License.
.. http://creativecommons.org/licenses/by/4.0
.. (c) OPNFV, Huawei Technologies Co.,Ltd and others.
*************************************
Yardstick Test Case Description TC076
*************************************
+-----------------------------------------------------------------------------+
|Monitor Network Metrics |
| |
+--------------+--------------------------------------------------------------+
|test case id | OPNFV_YARDSTICK_TC076_Monitor_Network_Metrics |
| | |
+--------------+--------------------------------------------------------------+
|metric | IP datagram error rate, ICMP message error rate, |
| | TCP segment error rate and UDP datagram error rate |
| | |
+--------------+--------------------------------------------------------------+
|test purpose | The purpose of TC076 is to evaluate the IaaS network |
| | reliability with regards to IP datagram error rate, ICMP |
| | message error rate, TCP segment error rate and UDP datagram |
| | error rate. |
| | |
| | TC076 monitors network metrics provided by the Linux kernel |
| | in a host and calculates IP datagram error rate, ICMP |
| | message error rate, TCP segment error rate and UDP datagram |
| | error rate. |
| | |
| | The purpose is also to be able to spot the trends. |
| | Test results, graphs and similar shall be stored for |
| | comparison reasons and product evolution understanding |
| | between different OPNFV versions and/or configurations. |
| | |
+--------------+--------------------------------------------------------------+
|test tool | nstat |
| | |
| | nstat is a simple tool to monitor kernel snmp counters and |
| | network interface statistics. |
| | |
| | (nstat is not always part of a Linux distribution, hence it |
| | needs to be installed. nstat is provided by the iproute2 |
| | collection, which is usually also the name of the package in |
| | many Linux distributions.As an example see the |
| | /yardstick/tools/ directory for how to generate a Linux |
| | image with iproute2 included.) |
| | |
+--------------+--------------------------------------------------------------+
|test | Ping packets (ICMP protocol's mandatory ECHO_REQUEST |
|description | datagram) are sent from host VM to target VM(s) to elicit |
| | ICMP ECHO_RESPONSE. |
| | |
| | nstat is invoked on the target vm to monitors network |
| | metrics provided by the Linux kernel. |
+--------------+--------------------------------------------------------------+
|configuration | file: opnfv_yardstick_tc076.yaml |
| | |
| | There is no additional configuration to be set for this TC. |
| | |
+--------------+--------------------------------------------------------------+
|references | nstat man page |
| | |
| | ETSI-NFV-TST001 |
| | |
+--------------+--------------------------------------------------------------+
|applicability | This test case is mainly for monitoring network metrics. |
| | |
+--------------+--------------------------------------------------------------+
|pre_test | The test case image needs to be installed into Glance |
|conditions | with fio included in it. |
| | |
| | No POD specific requirements have been identified. |
| | |
+--------------+--------------------------------------------------------------+
|test sequence | description and expected result |
| | |
+--------------+--------------------------------------------------------------+
|step 1 | Two host VMs are booted, as server and client. |
| | |
+--------------+--------------------------------------------------------------+
|step 2 | Yardstick is connected with the server VM by using ssh. |
| | 'ping_benchmark' bash script is copyied from Jump Host to |
| | the server VM via the ssh tunnel. |
| | |
+--------------+--------------------------------------------------------------+
|step 3 | Ping is invoked. Ping packets are sent from server VM to |
| | client VM. RTT results are calculated and checked against |
| | the SLA. nstat is invoked on the client vm to monitors |
| | network metrics provided by the Linux kernel. IP datagram |
| | error rate, ICMP message error rate, TCP segment error rate |
| | and UDP datagram error rate are calculated. |
| | Logs are produced and stored. |
| | |
| | Result: Logs are stored. |
| | |
+--------------+--------------------------------------------------------------+
|step 4 | Two host VMs are deleted. |
| | |
+--------------+--------------------------------------------------------------+
|test verdict | None. |
| | |
+--------------+--------------------------------------------------------------+
|
