Mimicking the original message
When using a trace-route message to determine the route another message has taken through a queue manager network, the more closely a trace-route message mimics the original message, the greater the chance that the trace-route message will follow the same route as the original message.
The following message characteristics can affect where a message is forwarded to within a queue manager network:
- Priority
- The priority can be specified in the message descriptor of the message.
- Persistence
- The persistence can be specified in the message descriptor of the message.
- Expiration
- The expiration can be specified in the message descriptor of the message.
- Report options
- Report options can be specified in the message descriptor of the message.
- Message size
- To mimic the size of a message, additional data can be written to the message data of the message. For this purpose, additional message data can be meaningless. Tip: The IBM MQ display route application cannot specify message size.
- Message data
- Some queue manager networks use content based routing to determine where messages are forwarded. In these cases the message data of the trace-route message needs to be written to mimic the message data of the original message. Tip: The IBM MQ display route application cannot specify message data.