60 lines
2.8 KiB
Plaintext
60 lines
2.8 KiB
Plaintext
# This file contains information for configuring the test_netemul extension.
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# To find how to have freeDiameter load this extension, please refer to the freeDiameter documentation.
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#
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# The test_netemul extension implements a Diameter proxy that behaves like simple forwarding agent,
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# with the exception that it can introduce delay in the forwarding of the messages and generate duplicates
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# of messages, as can be expected from a real Diameter network. It can also generate routing errors when
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# connected to more than 2 peers.
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# LATENCY:
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# Two parameters are used to control the delay introduced in the messages.
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# - latency_average:
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# This is the average delay introduced in the packets.
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# Set to 0 to not add any latency (beyond the normal processing time).
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# The value is expressed as an integer followed by a unit which can
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# be 's' (seconds) or 'ms' (milliseconds). Example:
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# latency_average = 700 ms;
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#
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# - latency_deviation:
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# This parameter controls the variance in the latency. It is expressed
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# as a value between 0 % and 100 %. When set to 0 %, all messages will be delayed
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# by exactly latency_average. Otherwise, it represents the width of the interval
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# "around" the average where "most" of the latency will be chosen (the distribution
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# has a Gaussian shape). Example:
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# latency_deviation = 25 %;
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#
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# The default values give an added latency "mostly" between 0.4 and 0.6 seconds:
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# latency_average = 500 ms;
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# latency_deviation = 20 % ;
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# REORDERING:
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# There is no special control over the reordering of messages. It may simply happen
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# as a result of the latency. If you want to get a lot of reordering, set the
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# latency_variance to a high value.
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# DUPLICATES:
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# Duplicate messages are expected in the Diameter protocol by design, as a consequence
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# of the failover mechanism that provides the protocol's reliability.
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# - dupl_proba:
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# This value gives the probability of producing a duplicate of a forwarded message.
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# The value is comprized between 0 (no duplicates) and 1 (duplicate all messages).
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# Duplicates are created for requests, but may result in duplicate answers
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# received by your Diameter client(s), depending on your server(s)'s behavior.
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# In the case of freeDiameter client, the duplicate answer is automatically filtered out
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# because the hop-by-hop id has already been used.
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# Note that each duplicate copy is an independent message,
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# which receives a different latency, and might be routed to a different server if you
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# use for example load-balancing.
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# The parameter can take several forms:
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# dupl_proba = 0 ;
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# Disables the generation of duplicate messages completely.
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# dupl_proba = 1 / 10000 ;
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# dupl_proba = 0.0001 ;
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# Around 1 messages over ten thousands will be duplicated.
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#
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# Default value:
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# dupl_proba = 1 / 100 ;
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