Cboe One Login Message Fields
The Cboe One Login message is the first message sent to the server by a user’s process after its connection to the server is established. Failure to login before sending any other message type will result in the connection being dropped by the server.
| Field | Offset | Length | Value/Type | Description |
|---|---|---|---|---|
| Length | 0 | 1 | Binary | Length of this message including this field. |
| Message Type | 1 | 1 | 0xA0 | Cboe One Login message |
| SessionSubId | 2 | 4 | Alphanumeric | SessionSubId supplied by Cboe. |
| Username | 6 | 4 | Alphanumeric | Username supplied by Cboe |
| Filler | 10 | 2 | Alphanumeric | (space filled) |
| Password | 12 | 10 | Alphanumeric | Password supplied by Cboe |
| Next Sequence | 22 | 4 | Binary | Sequence number of the next sequenced message expected by the user. |
| Total Length = 26 bytes | ||||