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Diffstat (limited to 'docs/report/introduction/methodology_packet_flow_ordering.rst')
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diff --git a/docs/report/introduction/methodology_packet_flow_ordering.rst b/docs/report/introduction/methodology_packet_flow_ordering.rst deleted file mode 100644 index 3796b21796..0000000000 --- a/docs/report/introduction/methodology_packet_flow_ordering.rst +++ /dev/null @@ -1,42 +0,0 @@ -.. _packet_flow_ordering: - -Packet Flow Ordering -^^^^^^^^^^^^^^^^^^^^ - -TRex Traffic Generator (TG) supports two main ways how to cover -address space (on allowed ranges) in scale tests. - -In most cases only one field value (e.g. IPv4 destination address) is -altered, in some cases two fields (e.g. IPv4 destination address and UDP -destination port) are altered. - -Incremental Ordering --------------------- - -This case is simpler to implement and offers greater control. - -When changing two fields, they can be incremented synchronously, or one -after another. In the latter case we can specify which one is -incremented each iteration and which is incremented by "carrying over" -only when the other "wraps around". This way also visits all -combinations once before the "carry" field also wraps around. - -It is possible to use increments other than 1. - -Randomized Ordering -------------------- - -This case chooses each field value at random (from the allowed range). -In case of two fields, they are treated independently. -TRex allows to set random seed to get deterministic numbers. -We use a different seed for each field and traffic direction. -The seed has to be a non-zero number, we use 1, 2, 3, and so on. - -The seeded random mode in TRex requires a "limit" value, -which acts as a cycle length limit (after this many iterations, -the seed resets to its initial value). -We use the maximal allowed limit value (computed as 2^24 - 1). - -Randomized profiles do not avoid duplicated values, -and do not guarantee each possible value is visited, -so it is not very useful for stateful tests. |