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