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If MQTT Engine or MQTT Transmission client attempts to subscribe on a topic that is not allowed by the ACL for that client, the connection will fail and the client will not attempt to reconnect.

For example with the following ACL, the Transmission client is not able to subscribe to the NCMD and DCMD topics

 R spBv1.0/My MQTT Group/NDEATH/PLC 1, W

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Publish on a topic not allowed by the ACL

If MQTT Engine or MQTT Transmission client attempts to publish on a topic that is not allowed by the ACL for that client, the connection will be forcefully closed and the client will attempt to reconnect.

For example with with the following ACL, the Transmission client can publish the NBIRTH for PLC 1 but is not able to publish the DBIRTH for edge node device D1

R #, W spBv1.0/My MQTT Group/+/PLC

1 the Transmission client can publish the NBIRTH for PLC 1 but is not able to publish the DBIRTH for edge node device D1

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For example with 

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For example with the following ACL, the MQTT Engine client is not able to send a rebirth request

R #, W spBv1.0/STATE/MyPrimaryHost, W spBv1.0/My MQTT Group/NDEATH/#, W spBv1.0/My MQTT Group/NBIRTH/#, W spBv1.0/My MQTT Group/DBIRTH/#

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