Session-Level Messages
Test Request <1>
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).
FIELDS
| Tag | Name | Req | Description |
|---|---|---|---|
| Standard Header | Y | MsgType = 1 | |
| 112 | TestReqID | Y | Identifier included in Test Request <1> message to be returned in resulting Heartbeat <0> |
| Standard Trailer | Y |