Client local.RemoteClientId closed its connection.

[Wlh0]

this is mt .conf file

This instance is configured as a bridge to connect to another broker

listener 1883
allow_anonymous true
log_type all
log_dest stdout

Enable persistence

persistence true

persistence_location /var/lib/mosquitto/

Bridge configuration

connection bridge
address 11.101.17.223:1883
bridge_protocol_version mqttv31
remote_clientid RemoteClientId
try_private true

Enable persistent session

cleansession false

Configure notifications

notifications true
notifications_local_only false
notification_topic test-update-persistence/broker/state

Topic mapping

topic # out 1

this is the log file
1718868037: Sending PUBACK to 7f000001fbae6673d845 (m11, rc0)
1718868037: Received DISCONNECT from 7f000001fbae6673d845
1718868037: Client 7f000001fbae6673d845 disconnected.
1718868038: Bridge local.RemoteClientId doing local SUBSCRIBE on topic #
1718868038: Connecting bridge bridge (11.101.17.223:1883)
1718868038: Bridge RemoteClientId sending CONNECT
1718868038: Client local.RemoteClientId closed its connection.
1718868061: Received PINGREQ from mqttx_63929f74
1718868061: Sending PINGRESP to mqttx_63929f74

[ckrey]

Which version of mosquitto are you running? Which operating system?
Which broker/version do you use on the target system of the bridge?
Why are you explicitly using the ancient protocol version 3.1 bridge_protocol_version mqttv31? mqttv311 is 10 years old, mqttv5 is 6 years old

Can you manually connect from your mosquitto broker's system to the bridge's broker?
mosquitto_sub -t '#' -v -d -h 11.101.17.223