iLink 2 Logon from Client System to CME Globex
This topic contains the message specification for the Logon (tag 35-MsgType=A) message sent from the Client System to CME Globex initiates the session logon.
Possible CME Globex response messages: Logon (tag 35-MsgType=A), Logout (tag 35-MsgType=5), or Session Level Reject (tag 35-MsgType=3).
Tag | Name | Enumeration | Req | Description | |
---|---|---|---|---|---|
35 | MsgType | String(2) | A=Logon | Y | Header tag identifying message type. |
108 | HeartBtlnt | Int(3) | 30-60 inclusive | Y | Hearbeat interval in seconds.
|
141 | ResetSeqNumFlag | Boolean(1) | Y=Yes, reset sequence numbers N=No | C | Indicates that both sides of the FIX session should reset sequence numbers. For beginning of week and mid-week logon, tag 141 is optional but a Logon message with 141=Y will receive a Logout message in response. During in-session logon, tag 141 is required and must be set to "Y". Messages with incorrect or missing tag 141 values will result in session logout. |
1603 | ApplicationSystemName | String(30) | Value obtained from GAM or ISV. | Y* | Identifies system generating the message. |
1604 | TradingSystemVersion | String(10) | Value obtained from GAM or ISV. | Y* | Identifies the version of the system generating the message. |
1605 | ApplicationSystemVendor | String(10) | Value obtained from GAM or ISV. | Y* | Identifies the vendor of the application system. |
354 | EncodedTextLen | Length(2) | C | Length of the Access Key ID. Must be sent if tag 355-EncodedText field is specified and must immediately precede it. | |
355 | EncodedText | Data(32) | C | Contains the Access Key ID assigned to the session ID in tag 49-SenderCompID. | |
1400 | EncryptedPasswordMethod | String(13) | CME-1-SHA-256 | C | Defines the method used to create secure cryptographic hash in the encrypted password field. For day 1 the only valid value supported is CME-SHA-256 which represents first CME version of message digest or hash of SHA-256. |
1401 | EncryptedPasswordLen | Length(2) | C | Length of tag 1402-EncryptedPassword which contains the HMAC signature. | |
1402 | EncryptedPassword | Data(44) | C | Contains the HMAC signature built with HMAC data using the instruction provided. | |
End of message. |
Y: Required by FIX protocol, Y*: Required by CME Globex (not by FIX protocol), N: Not Required, C: Conditionally
See Session Layer Validation Rejects for a list of error messages for tag 58-Text for the Logon message.
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