OpenThread
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Out of curiosity what were the significant configuration changes made from the old thread version 1.3 to the current version now, (such as changing from OPENTHREAD_CONFIG_MAC_DEFAULT_MAX_FRAME_RETRIES_DIRECT=3 to 15), and what were the reasons? |
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The change from
In general, default values are only changed when a new specification requires it or when extensive field experience shows that a different default provides better behavior across most topologies. |
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The change from
3to15for this configuration actually occurred in March 2021 (commit498818a79d) and was driven by the Thread 1.2.1 specification (specifically Thread 1.2.1-draft4).macMaxFrameRetriesto improve link reliability and ensure better delivery of messages in dense or noisy environments.In general, default values are only changed when a new specification requires it or when extensive field experience shows that a different default provides better behavior across most topologies.