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Noteinfo

Drop Copy logon must follow the CME Globex Secure API Logon procedure. Once securely logged on, the following information is applicable to the Drop Copy session.

Client systems use the  Logon (tag 35-MsgType=A) message for authentication with Drop Copy. There are three Logon scenarios:

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Info

If there is a logon failure, the client system must reset the inbound and outbound sequence number to '1' until the client system establishes a successful Beginning of Week Logon.

Noteinfo

The client system must submit the Logon message within 60 seconds after establishing a TCP/IP connection. If the client system does not submit the Logon message within 60 seconds, the TCP/IP socket connection is assumed to be stale and the socket is closed.

See also: Session Layer - Fault Tolerance for a discussion of setting the Fault Tolerance Indicator (FTI) at logon and failover scenarios.

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In-Session Logon

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In-Session Logon should only be used to recover from catastrophic failure.

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