VNF Service Chains


DISCLAIMER: Presented test results should be taken with a pinch of salt as they may not represent correctly the system behaviour due to experimental nature of used test methodology (see Reconfiguration Tests).

In each test, a single service chain is added, the re-configuration contains all the steps the initial chains got, except the last step (starting VMs) is skipped.

Additional information about graph data:

  1. Graph Title: describes tested VPP packet path. Format:

    • wire encapsulation dot1qip4vlxan,

    • VPP forwarding mode l2bd,

    • total number {Y} of service chains {Y}ch,

    • total number of chains being reconfigured 1ach,

    • total number of vhost-user interfaces forwarding packets on VPP with {Y} chains and {X} VMs per chain {2XY}vh (2 interfaces per {X} VMs per {Y} chains),

    • total number {XY} of VNF VMs forwarding packets {XY}vm and finally

    • VNF workload in VM testpmd.

  2. X-axis Labels: indices of individual test suites as listed in Graph Legend.

  3. Y-axis Labels: measured Implied time loss [s] values.

  4. Graph Legend: lists X-axis indices with associated CSIT test suites executed to generate graphed test results and the average value of measured packet loss.

  5. Hover Information: lists minimum, first quartile, median, third quartile, and maximum. If either type of outlier is present the whisker on the appropriate side is taken to 1.5×IQR from the quartile (the “inner fence”) rather than the max or min, and individual outlying data points are displayed as unfilled circles (for suspected outliers) or filled circles (for outliers). (The “outer fence” is 3×IQR from the quartile.)


Test results have been generated by test executor vpp performance job 2n-skx with RF result files csit-vpp-perf-2001-*.zip archived here.