Used to request a heartbeat
From TT FIX to FIX client and from FIX client to TT FIX
|Tag #||Field Name||Req’d||Data type||Comments|
|Component Block <Standard Header>||Y||35=1 (MsgType)|
String to include in the heartbeat message.
|Component Block <Standard Trailer>||Y|
A Test Request (1) message is used to force the counterparty to respond with a Heartbeat (0) message to validate the state of the connection between a FIX client and TT FIX.
When either party stops receiving data for the specified heartbeat interval, it should send a Test Request (1) message. The counterparty should send a Heartbeat (0) message in response. If a party does not receive a Heartbeat (0) message in a reasonable amount of time, the connection should be considered lost.