Monitor the Local Delivery Layer (LDL)

The Local Delivery Layer (LDL) is responsible for messages sent directly between applications and the PubSub Engine. Statistics for this delivery layer are published approximately every two seconds.

To view the LDL statistics, use the MultiSubscriber tool to subscribe to the debugging topic pubsub.debug.ldl. The published information includes the numbers of connections, publishers, subscribers, and topics associated with the LDL.

For more information, refer to PubSub debugging.