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Handling of Invalid Message Headers

If an invalid message header is encountered, the Exchange will disconnect the port. A message header is considered invalid if any of the following is encountered:

  • StartOfMessage is not B0E3.
  • MessageLength is not appropriate for the given message type.
  • MessageType is not a documented message type for Cboe. Note that the types of application messages accepted will vary between Cboe and other BOEv3 exchanges.
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Cboe Titanium U.S. Options BOEv3 Specification - Handling of Invalid Message Headers | Cboe