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FIX 4.1 : Test Request <1> message

Structure | Related Messages

Description

The Test Request <1> message forces a heartbeat from the opposing application. The Test Request <1> message checks sequence numbers or verifies communication line status. The opposite application responds to the Test Request <1> with a Heartbeat <0> containing the TestReqID <112>.

The TestReqID <112> verifies that the opposite application is generating the heartbeat as the result of Test Request <1> and not a normal timeout. The opposite application includes the TestReqID <112> in the resulting Heartbeat <0>. Any string can be used as the TestReqID <112> (one suggestion is to use a timestamp string).

Structure

Tag Field Name Req'd Comments
<MessageHeader> Y MsgType <35> = 1
112 TestReqID Y
<MessageTrailer> Y  

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