Session Messages
| Direction | Message Name | Type | Sequenced |
|---|---|---|---|
| Member to Cboe | Login Request | 01 00 (1) | No |
| Member to Cboe | Logout Request | 02 00 (2) | No |
| Member to Cboe | Client Heartbeat | 03 00 (3) | No |
| Cboe to Member | Login Response | F5 01 (501) | No |
| Cboe to Member | Replay Complete | F6 01 (502) | No |
| Cboe to Member | Logout Response | F7 01 (503) | No |
| Cboe to Member | Server Heartbeat | F8 01 (504) | No |