Example of Unavailable Time Detection
About Sequence Error and Sequence Sync LossAbout Sequence Error and Sequence Sync Loss
Sequence Error and Sequence Sync Loss are measured as following:
Ethernet frames sent by Network Master include special bytes that indicates
sequence number. When receiving this Ethernet frames, Network master sets
the sequence number of next incoming Ethernet frame.
Network Master checks sequence numbers in every four straight incoming
frames. When the sequence number does not match the expected value, a
Sequence Error or a Sequence Sync Loss will occur.
Sequence Error: When one frame arrived after next sequence number frame.
Sequence Sync Loss: Other case of Sequence Error. For example, when one or
more sequence number were lost.
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