Resuming a broker reactivates the broker’s service threads and the broker resumes listening on the ports.
This is the syntax of the resume bkr subcommand:
imqcmd resume bkr [-b hostName: portNumber]
The subcommand resumes the default broker or a broker at the specified host and port.
The following command resumes the broker running on localhost at port 7676.
imqcmd resume bkr -u admin