[mosquitto-dev] mosquitto configuration issue

[sash@xxxxxxxxxxxxxxxxx]

Hi Gang,

I'm trying to set the following config values:

bridge_tls_version tlsv1
bridge_identity XXXXXXXXXXX
bridge_psk XXXXXXXX

however, I'm getting the following issue when attempting to start 
mosquitto:

Unknown configuration variable '......' for all of the 3 config items.

I am running the latest mosquitto version 3.1

Any ideas?

Thank you in advance.