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Administrative messages are used to establish and maintain a FIX session with CME Globex over which business functions are transacted.

  • Logon - from client system to CME Globex
  • Logon - from CME Globex to client system
  • Heartbeat - sent at regular intervals between systems to ensure connection and in response to a test request
  • Test Request - sent to test connectivity from one system to another
  • Resend Request - request a range of ordered messages resent from the counterparty
  • Session Level Reject - sent when the inbound (client sys­tem to CME) message fails to pass a CME session-level validation
  • Business Level Reject - sent when the inbound (client sys­tem to CME) message fails to pass a CME business-level validation
  • Sequence Reset - synchronize sequence numbers on the sending and receiving sides
  • Logout - sent to logout and as logout acknowledgment
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