iLink 2 Logout

This topic provides the Logout (tag 35-MsgType=5) message specification.

The Logout (tag 35-MsgType=5) message initiates a Session Layer - Logout by the client system and confirms the logout by CME Globex. It can also be sent unsolicited by CME Globex in certain error scenarios.

Possible CME Globex response messages: Logout (tag 35-MsgType=5), Resend Request (tag 35-MsgType=2) or Session Level Reject (tag 35-MsgType=3).

Tag	Name	FIX Type	Enumeration	Req	Description
Standard Header - Client System to CME Globex				Y
iLink 2 Standard Header - CME Globex to Client System				Y	Same as above.
35	MsgType	String(2)	5=Logout	Y	Header tag identifying message type.
58	Text	String(200)		N	Reason for logout.
789	NextExpectedMsgSeqNum	Int(9)		Y*	Next expected inbound tag 34-MsgSeqNum value expected by CME.
9553	SplitMsg	Int(1)	0 – Split message 1 – Out-of-order message 2 – Complete message	N	Indicates whether a message was subject to additional processing as a result of being: split among multiple packets (0) out-of-order (1) a previously submitted split message (2) If absent, then the message was not subject to additional processing.
iLink 2 Standard Message Trailer					End of message.

Y: Required by FIX protocol, Y*: Required by CME Globex (not by FIX protocol), N: Not Required, C: Conditionally